I absolutely love this guy: 1- he's knowledgeable 2- he's concise and articulate 3- drum roll please... He uses his brother's old shirt and his wife's toothbrush. This last one is the main reason I watch all his videos and I've learned a lot so far.
Scroll compressors have taken over the HVAC industry because they require much less starting torque from the motor, even when the starting pressure load is high. There are far fewer moving parts compared to variable displacement compressors so I'll guess they are more durable.
The residential scrolls can also survive some slugging…..return of liquid to the compressor intake due to poor heat transfer at evap or metering problems.
You saved me from making a mess! I wasn't exactly sure how the VFD driven compressors worked but if I ever was to need to know? It would have gotten an autopsy just like the one you performed! Thank You👍
My 2002 Prius does NOT have electric A/C. It just has a "cold-storage" evaporator core that keeps cold air blowing when the compressor is off. Typically, it stays cold for about 30 to 45 seconds, and in milder weather it can deliver up to a minute or so of cold reserve. If the engine has to run to recharge the evaporator, it will only run as long as it needs to.
@@thetechlibrarian I would seriously doubt that the AC would stay cold for that long. Yes, Mercedes cars have a "rest mode". But, I've tested traditional vehicles that weren't hybrids, the AC would only stay cold for about 15 to 20 seconds after I shut off the engine. The Prius (and a lot of modern cars with idle start-stop) freezes a thermally-massive wax solution within its evaporator to aid in maintaining cold air when the compressor stops.
6:18 The IGBT are Insulated Gate Bibolar Transistors, a hybrid between a MOSFET and a Bipolar junction transistors. That A/C inverter is in fact a variable frequency drive, not just an inverter.
The first motor Permanent Magnet Synchronous Motor (PMSM). High efficiency, high torque (compared to AC asynchronous or BLDC types). Overall - Big power, small package; hence the in-line cooling of the refrigerant.
FYI: IGBT = Insulated Gate Bipolar Transistor. Not "Integrated". It is a compound semiconductor with an FET driving the Base of a BJT. More acronyms! FET = Field Effect Transistor (originally called IGFETS for "Insulated Gate...") BJT = Bipolar Junction Transistor. IGBT combines the characteristics of both.
Thanks speedkar, I wondered how that compressor ran on our new Explorer Hybrid, when I have the AC on idling in the engine is off and it's in hybrid mode, you can hear the scroll compressor changing speed. The battery must have a lot of capacity because it will run a while with the engine off.
@@speedkar99 hello, yes, it will go about 13k m on hybrid mode at 60kph providing there is no headwind LOL, then the gas engine will cut in. Ford's done a good job, the motor kicks in flawlessly as the DC motor is the starter in this case. I think it kicks in by clutch but you don't notice it.
Scroll pumps actually can run dry, so it’s not surprising that the new model doesn’t have lubricants. I’d say the oily stuff you got from the old Prius scroll compressor might be decomposed chemicals from refrigerant?
@@speedkar99 scroll type compressor/pump can run dry. If you take a closer look, there’s no relative motion between 2 scrolls - it’s their mating position keeps moving, but not rubbing against, thus no need for lub.
@@bikingmomentsThe seals require lubricant, as well as the bearings. Some scroll compressors CAN be designed for dry work, but that by no means says ALL scroll compressors CAN be used dry.
@@speedkar99 Rainman Ray opened a variable one in an older video, yank-mobiles (light trucks especially) seem to need the AC compressor/condenser replaced as a matter of course (over 100K miles). Those scroll compressors certainly look like they would be much much less susceptible to failure (but I'm no engineer). Pistons going up and down on a wobbly plate does seem to suggest weird pressures and stresses.
Can we please show some love and recognition to Mrs Speedkar and Mr Speedkar's brother for all the sacrifice and self-less contributions they have made ro this channel? 💆♀️ 🤛
Hybrid air conditioning systems are my favorite. They have consistency and the compressor doesn't blow up as easy belt-driven one when your flooring it. Newer cars turn off the compressor while accelerating or in the red light which is b******* to save little to no gas
They don't blow up when running at high rpm! There is things called pressure switches. There is a low and high side switches. If low on refrigerant the compressor won't start, when gets over a set pressure the high side will kick the compressor out and the high side also is what starts the cooling fan to cool the condenser so the pressure doesn't run away also.
Those Toyota hybrids can go 15 years. Amazing given the scepticism about batteries. Have to ensure the filter cooling the battery is regularly changed to ensure battery cooling. But easy to do.
@@speedkar99 thanks man for your reply. No wonder, no specific mandatory maintenance for aircond system inside the manual. Just air cleaner element and dust & pollen filter.
Hey buddy have you ever inspect any rear caliper. I couldnt understand it because there is no english video any clear explanation on the internet and it has a rotating mechanism inside run by hand brake wire. This rotating thrust screw is the problem to understand. What is this rotating mechanism what is the ambition here? Also there is a gap between outer piston and inner piston. Outer piston has a small bore opening out. Could you enlighten us please.
Wow, this was really interesting! Quick question; would you happen to know if the pressure relief valve on the compressor is a one time use valve? I have a RAV4 Prime and the relief valve opened up and released all the refrigerant. Just wondering if I need to replace the valve or not… Thanks again for the great video!
You’re amazing! Question: When replacing a compressor in a Prius, the system is emptied of refrigerant. Do you have to jump the compressor to get it to suck in the new refrigerant or does it take in the new refrigerant another way?
It's no different than any other aircon compressor... the system must be evacuated completely to remove all remaining gas, air and moisture. This is done by pulling a vacuum using a vacuum pump, and pulling it down to about 99.95% of absolute vacuum!). The pump should stay running for 20-30 minutes to be certain all moisture has been boiled out of the system. At this point the pump can be turned off, but monitor the vacuum gauge to be sure there's no leak that allows the vacuum to decrease for at least 10 minutes. Then the new refrigerant can be introduced to the system as liquid (tank valve down). The vacuum in the system will suck the liquid refrigerant into the system. This is where you have to know how much refrigerant the system requires, so you don't over-charge it and cause slugging... which can destroy a compressor. This is obviously a job for someone trained in HVAC.
Funny video. I like it. However, I'm not sure the hybrid is using PAG oil. Toyota uses ND-11 in their Gen 2&3 Prius where PAG oil will supposedly conduct electricity and destroy the windings they piss through. Thanks for showing that.
Hello, I know it will be stupid question but I will ask it anyway 😅 is there any opportunity to swap my 1992 toyota pickup ac compressor from the belt driven into an electrical one? Because once I turn on the AC the power loss is noticed immediately in addition to the insane fuel consumption 😢
Volkswagen used scroll compressors as superchargers for polo, corrado and golf models, for a short period of time. They called them G-lader. G40 mounted on 1.6l and G60 for 1.8l engines. They were very unreliable, unfortunately.
I'm tempted to say that's a VW thing rather than a scroll thing though (I own a vw). The DSG gearbox was a brilliant idea that should have rendered automatic transmissions redundant the world over. However the clutch packs wear out, and the lower gears aren't up to scratch and so also give problems and they're a nightmare. Initially the oil in the control units dissolved the pcb tracks and shorted them out - regular oil is high sulphur and corrodes soft metals. It's common knowledge but VW made that basic error (now replaced with low sulphur oil). I mean, it took until the nineties for them to get heat into the Beetle ;-)
If you're hoping your bro's clothing tastes have improved in the meantime, prepare to be disappointed. Anyhow, once you get to 40, someone creeps into your bedroom at night and steals your sense of dress. No avoiding it. The only symptom is you suddenly notice you're buying clothes at the same place you get your groceries.....
![[ ออกกอง ] วัยหนุ่ม 2544 โลกหลังลูกกรง..ทัวร์กองถ่ายหนังใน "คุกของจริง" | JUSTดูIT.](http://i.ytimg.com/vi/vB--aOkZCpw/mqdefault.jpg)
I absolutely love this guy: 1- he's knowledgeable 2- he's concise and articulate 3- drum roll please... He uses his brother's old shirt and his wife's toothbrush. This last one is the main reason I watch all his videos and I've learned a lot so far.
As a Prius fan, it's always cool to hear how high the mileage is on them when you're tearing apart their components. Awesome video!
They sure are very reliable cars!
It's crazy how many different ways there are to move fluids. This is a fun way to learn how stuff works.
Compress gasses, not move fluid.
Very cool to see the comparisons between all of them! Thanks
You are welcome!
Scroll compressors have taken over the HVAC industry because they require much less starting torque from the motor, even when the starting pressure load is high. There are far fewer moving parts compared to variable displacement compressors so I'll guess they are more durable.
Variable compressors have an adjustable swash plate that can basically start at 0 compression.
I agree scroll compressors are more common and simpler.
why werent scroll compressors the norm in the first place?
@@poiiihy knowledge is a process often impacted by many extraneous factors. We're all born young and noone is born wise!
The residential scrolls can also survive some slugging…..return of liquid to the compressor intake due to poor heat transfer at evap or metering problems.
Exactly that’s why rotary “Wankel” engine produces low torque vs hp
this man is like the chrisfix but taking things apart and showing you how it works internally
Yep. I like to break stuff not fix stuff 🤣
Maybe he's a bit suspect at fixing stuff so decided to break stuff instead ;-)
"I've had enough of snap rings for today!"
-that's the statement of the year!
I hate snap rings... especially when taking apart transmissions.
You saved me from making a mess! I wasn't exactly sure how the VFD driven compressors worked but if I ever was to need to know? It would have gotten an autopsy just like the one you performed! Thank You👍
Well I'm glad you learned something
My 2002 Prius does NOT have electric A/C. It just has a "cold-storage" evaporator core that keeps cold air blowing when the compressor is off. Typically, it stays cold for about 30 to 45 seconds, and in milder weather it can deliver up to a minute or so of cold reserve. If the engine has to run to recharge the evaporator, it will only run as long as it needs to.
Yes, the full electric came in the 2nd gen. In really hot weather it could drain the battery in one go!
Who cares? It's a Prius! 🤣
The w140 s class has a 20 min reserve of heat /ac I have always wanted to know how that worked.
@@thetechlibrarian I would seriously doubt that the AC would stay cold for that long. Yes, Mercedes cars have a "rest mode". But, I've tested traditional vehicles that weren't hybrids, the AC would only stay cold for about 15 to 20 seconds after I shut off the engine. The Prius (and a lot of modern cars with idle start-stop) freezes a thermally-massive wax solution within its evaporator to aid in maintaining cold air when the compressor stops.
The sunbelt states laugh at your cold storage evaporators!!!
Awesome videos Mr. SpeedKar. Thank-you!
You are welcome
The pause after the snap ring goes flying and "this one has green sauce" made me LoL!
Yeah it was quite the moment. I was considering editing that out but it was too good to give up
@@speedkar99 very happy you kept it in.
6:18 The IGBT are Insulated Gate Bibolar Transistors, a hybrid between a MOSFET and a Bipolar junction transistors. That A/C inverter is in fact a variable frequency drive, not just an inverter.
Thanks - my electronics knowledge is limited to what my brother brushes off on me
The first motor Permanent Magnet Synchronous Motor (PMSM). High efficiency, high torque (compared to AC asynchronous or BLDC types). Overall - Big power, small package; hence the in-line cooling of the refrigerant.
Exactly. I like it, very simple.
Great video as usual! Thanks for sharing!
You are so welcome
The Prius compressor has 3 reed valves like LG, Samsung refrigerators with variable speed motor compressor. Very efficient.
Cool!
I enjoy your videos quite a bit they're very thorough keep up the good work
Another great video keep them coming...
Thanks
FYI: IGBT = Insulated Gate Bipolar Transistor. Not "Integrated". It is a compound semiconductor with an FET driving the Base of a BJT.
More acronyms! FET = Field Effect Transistor (originally called IGFETS for "Insulated Gate...") BJT = Bipolar Junction Transistor. IGBT combines the characteristics of both.
Yeah you could say I'm a member of the IGBT
Thank you shazam, you are spot on. And thank you speedkar99 for another outstanding presentation. My hat's off to you sir.
Sorry I mispronounced that. You are correct
as always very educative. Thank you regards
My pleasure!
Such a GREAT video!!! Thank you!
You are so welcome!
As always, a great video!
Thanks for posting very cool video
You are welcome
This was fascinating! Thank you!
8:32 snappering removal tool 😆 tnx for video
Haha
I love my angle grinder
My old 2016 Audi A3 Etron (PEHV) had a bad Hybrid A/C Compressor... I wonder how many different sockets the tech needed to replace it...
Lol! Very true.
Have you seen the vag technic videos on Audi engine repairs ? you'd run a mile from audi after watching those.
You could probably turn the compressor with an ESC for brushless DC motors.
I like the Prius' design: no moving seals.
I agree! That's probably why it lasted so long.
@@speedkar99 the moving seals in other scroll compressors have good for introducing black contamination in the ac system and cause black death...
Another great video!
Thanks
Thanks speedkar, I wondered how that compressor ran on our new Explorer Hybrid, when I have the AC on idling in the engine is off and it's in hybrid mode, you can hear the scroll compressor changing speed. The battery must have a lot of capacity because it will run a while with the engine off.
The battery on hybrids are quite sizable, enough to power the vehicle at low speed.
@@speedkar99 hello, yes, it will go about 13k m on hybrid mode at 60kph providing there is no headwind LOL, then the gas engine will cut in. Ford's done a good job, the motor kicks in flawlessly as the DC motor is the starter in this case. I think it kicks in by clutch but you don't notice it.
Thank you, thank you 👍
You are welcome
Scroll pumps actually can run dry, so it’s not surprising that the new model doesn’t have lubricants.
I’d say the oily stuff you got from the old Prius scroll compressor might be decomposed chemicals from refrigerant?
All compressors have oil in them.
@@speedkar99 scroll type compressor/pump can run dry. If you take a closer look, there’s no relative motion between 2 scrolls - it’s their mating position keeps moving, but not rubbing against, thus no need for lub.
@@bikingmomentsThe seals require lubricant, as well as the bearings. Some scroll compressors CAN be designed for dry work, but that by no means says ALL scroll compressors CAN be used dry.
The hype you had when finding out that it's a variable compressor was so real
It sure was cool to see, even though I've already opened one prior
@@speedkar99 Rainman Ray opened a variable one in an older video, yank-mobiles (light trucks especially) seem to need the AC compressor/condenser replaced as a matter of course (over 100K miles).
Those scroll compressors certainly look like they would be much much less susceptible to failure (but I'm no engineer). Pistons going up and down on a wobbly plate does seem to suggest weird pressures and stresses.
That was great.
Thanks
Can we please show some love and recognition to Mrs Speedkar and Mr Speedkar's brother for all the sacrifice and self-less contributions they have made ro this channel?
💆♀️ 🤛
Haha
You're of course talking about the shirts and toothbrushes sacrificed in the name of voyeurism, correct?
insane thanks !
Have you done any teardowns on the early 2000 ford/mazda 2.3? If ever convenient id like youre thoughts on them.
Yes I have a video on the 2010 Mazda 3 engine
Great video brother
That first compressor is for a second gen (2004-2009) prius only. third gen and up has an integrated inverter.
Oh wow. They moved the inverter offline. Imagine how expensive that must be to replace
That was very cool! I wonder what the most preferred type of compressor is used on heat pump systems like the late model Teslas?
Home heat pumps go with scroll compressors.
Most likely scroll type similar to what you've seen here. I'd be interested to open one myself
@@speedkar99 it seems scroll compressors last long time
Hybrid air conditioning systems are my favorite. They have consistency and the compressor doesn't blow up as easy belt-driven one when your flooring it. Newer cars turn off the compressor while accelerating or in the red light which is b******* to save little to no gas
My Prius has a "cold storage" evaporator. When the engine (and the engine-driven compressor) shuts off at a light, cold air keeps blowing.
They don't blow up when running at high rpm! There is things called pressure switches. There is a low and high side switches. If low on refrigerant the compressor won't start, when gets over a set pressure the high side will kick the compressor out and the high side also is what starts the cooling fan to cool the condenser so the pressure doesn't run away also.
Even a 1990 Ford Ranger haves a WOT (wide open trhottle) relay thats disengage the AC compresor when you go to floor on the gas
Had a couple Chryslers blow up on me while revving the engine. Not sure if they just suck. I had a Ford explorer 1998, it did cut off at wot
That's cool, I didn't know that.
500k! Wow Toyota are really reliable. My Ecoboost Mustang only had 60K before it started to play foul games with me.
I made an engine teardown on the engine for this car a year ago, check it out!
Those Toyota hybrids can go 15 years. Amazing given the scepticism about batteries. Have to ensure the filter cooling the battery is regularly changed to ensure battery cooling. But easy to do.
Very cool.
It sure is cool especially that variable compressor
OOOooo! Nailed it!
Thanks
Man, you are really really really really awesome
Thank you so much 😀
I’m not sure if this question has been asked but what parts would I need to put an electric a/c in an old classic car?
These use a 200V source.. start with that.
Yay, no more relying on a Vietnamese video. FYI the prius doesn't use PAG oil, it's ND11.
Good to know!
Hi, what’s the maintenance needed for aircond system? I owned honda i-mmd hybrid car. It’s used electric compressor as well.
As long as it's a closed system there's not much maintenance other than the air filter
@@speedkar99 thanks man for your reply. No wonder, no specific mandatory maintenance for aircond system inside the manual. Just air cleaner element and dust & pollen filter.
My Prius NW20 2004 240 k mile model condenser split , good to know the compressor is tooth brush proof!
Hey buddy have you ever inspect any rear caliper. I couldnt understand it because there is no english video any clear explanation on the internet and it has a rotating mechanism inside run by hand brake wire. This rotating thrust screw is the problem to understand. What is this rotating mechanism what is the ambition here? Also there is a gap between outer piston and inner piston. Outer piston has a small bore opening out. Could you enlighten us please.
Check my parking brakes video
@@speedkar99 I already did it and first looked into your videos. I am looking for parking brake caliper not drum brake.
Wow, this was really interesting!
Quick question; would you happen to know if the pressure relief valve on the compressor is a one time use valve? I have a RAV4 Prime and the relief valve opened up and released all the refrigerant. Just wondering if I need to replace the valve or not… Thanks again for the great video!
I have a Corolla hybrid. My engine turns on more often on a rainy day even with my ac off. Is that typical of hybrids to do on a rainy day? Thank you.
That pump for the Spark had a leak in the low pressure circuit. Damn shame.
How do you know it was leaking? Just because there was no oil?
First two are rotary compressors in toyota its very semellar to home AC but more complex due DC corrent
Good to know. These run off of 3-phase AC
You’re amazing!
Question: When replacing a compressor in a Prius, the system is emptied of refrigerant. Do you have to jump the compressor to get it to suck in the new refrigerant or does it take in the new refrigerant another way?
It's no different than any other aircon compressor... the system must be evacuated completely to remove all remaining gas, air and moisture. This is done by pulling a vacuum using a vacuum pump, and pulling it down to about 99.95% of absolute vacuum!). The pump should stay running for 20-30 minutes to be certain all moisture has been boiled out of the system. At this point the pump can be turned off, but monitor the vacuum gauge to be sure there's no leak that allows the vacuum to decrease for at least 10 minutes. Then the new refrigerant can be introduced to the system as liquid (tank valve down). The vacuum in the system will suck the liquid refrigerant into the system. This is where you have to know how much refrigerant the system requires, so you don't over-charge it and cause slugging... which can destroy a compressor.
This is obviously a job for someone trained in HVAC.
Funny video. I like it. However, I'm not sure the hybrid is using PAG oil. Toyota uses ND-11 in their Gen 2&3 Prius where PAG oil will supposedly conduct electricity and destroy the windings they piss through. Thanks for showing that.
Are they generally more reliable than regular belt driven?
Which oil is used in hybrid vehicles ac compereser PAG Or POE oil?
Does it not have a 0 connection?
or is it connected elsewhere, and not a part of high voltage connection?
It doesn't need a 0
It is in delta configuration
The case is still basically grounded (for safety and noise)
Async motors don't need a neutral connection. Only 3 wires for each of the phase.
No, just 3 phases
Hello, I know it will be stupid question but I will ask it anyway 😅 is there any opportunity to swap my 1992 toyota pickup ac compressor from the belt driven into an electrical one?
Because once I turn on the AC the power loss is noticed immediately in addition to the insane fuel consumption 😢
Isn't that a sensorless 'DC' brushless motor?
Snap ring plliers ?
Grinder
8:31 Snap ring removal tool XD
Love my grinder
cool
Thanks
We are wholesale those auto parts of hybrid ac compressor , like scroll ,coil, bearing ,etc. please contact me if you need
I am AC mechanic I have Hyundai hybrid so if you start the is the engine go off I have to teach me to do it
Winter? We're in May
I shot a few videos a while back in winter. You'll see them trickle in this spring lol
I have problem with my essay so how to teach me to do
Volkswagen used scroll compressors as superchargers for polo, corrado and golf models, for a short period of time. They called them G-lader. G40 mounted on 1.6l and G60 for 1.8l engines. They were very unreliable, unfortunately.
Yeah the spirals inside of this compressor kinda look like it right?
@@Kollege_Turnschuh they are the same in working principle, just designed for slightly different application and working conditions.
I'm tempted to say that's a VW thing rather than a scroll thing though (I own a vw). The DSG gearbox was a brilliant idea that should have rendered automatic transmissions redundant the world over.
However the clutch packs wear out, and the lower gears aren't up to scratch and so also give problems and they're a nightmare.
Initially the oil in the control units dissolved the pcb tracks and shorted them out - regular oil is high sulphur and corrodes soft metals. It's common knowledge but VW made that basic error (now replaced with low sulphur oil).
I mean, it took until the nineties for them to get heat into the Beetle ;-)
That's interesting. Wonder how it pumped air compared to a turbine style
So coool 🆒
Want see rotary
Me too
@@speedkar99
I have looked.
@@speedkar99
Maybe quit making. sanden
Used to have.
I want a tm65
Valeo
It's like VW's supercharger!
G-Lader
Tutorial brilliant, thank you, Speedkar99
👍
SHARP Speedkar99
From Nick Ayivor from London England UK 🇬🇧 ⏰️ 22:16pm
Thanks
IGBT = Insulated Gate Bipolar Transistor, not Integrated Bipolar Transistor
Hybrid , inverter..wow...the technology for ac car are advancing...
Check my hybrid car video out I made
You could also use your wife's new shirt...for your last video.
Last ? 😢
You love ❤ your brother T shirt
Your cloth joked always makes me laugh.
dude hate snap rings
Notification Squad!🔥🔥🔥
Thanks for being so dedicated
🙂✌️woppp
Yeh
If you're hoping your bro's clothing tastes have improved in the meantime, prepare to be disappointed.
Anyhow, once you get to 40, someone creeps into your bedroom at night and steals your sense of dress. No avoiding it.
The only symptom is you suddenly notice you're buying clothes at the same place you get your groceries.....
Haha
I'm getting there ☹️
you seem to have unlimited used clothes
No comment
Me neither
@@speedkar99 glad to see you reply to all comments even the ones that don't make sense lol
I think hybrid Ac compressor is not reliable.
Why so?
Like or no scroll