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Electric AC Compressor in Dixie

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Posted by bwilson4web on May 13, 2011, 10:53 am
We had one of those close mornings when the humidity is nearly 100%
but too warm for fog. Driving my wife's 2010 Prius, I closed the vents
and windows and used the air conditioner to take out the damp but I
had to stop at a busy intersection. As I came to a stop, the engine
shutoff yet the AC remained cool because the compressor is not engine

Unlike engine driven compressors, there are no seals, electric
clutches, or belts. Instead of designing for the wide range of engine
speeds, 800-6,000 rpm, the Prius electric compressor is optimized and
draws on the same technology as refrigerators and home air
conditioners which have become exceptionally efficient. By eliminating
parts and seals, the Prius compressor sets a high bar improving
reliability and efficiency. So the light changed and everyone moved
out yet the Prius engine was not burdened by electric compressor load
as the traction battery provided power.

In contrast, today's gassers and diesels have belts, electric
clutches, and seals for their mechanically driven compressors. This
robs power directly from the engine and limits where the compressor
can be located leading to a cluttered engine compartment. In contrast,
the Prius regenerative braking stored the power that ran the air
conditioner compressor and fan when the car slowed and stopped with
the engine off. But the Prius extends the options back into the house.

I saw a nice room air conditioner at Home Depot, 850W for 7,000 BTU,
well within the range of my 1kW inverter. I still have to test the
unit but it looks to be substantially more efficient than our 5,000
BTU window AC and perfect for Prius power during an outage. So we'll
be cooler and save electric bills this summer.

Compared to gassers and diesels, the Prius air conditioning is
exceptionally efficient and reliable. Unlike gassers and diesels,
Prius integration with the house extends efficiency and saving other
household bills. Once again, the Prius is going where gassers and
diesels can not follow.

Bob Wilson

Posted by Elmo P. Shagnasty on May 13, 2011, 12:46 pm
In article

No seals?  Really?

Is that like "the Prius is superior because it has a catalytic
converter, which means it doesn't produce carbon monoxide"?

Posted by bwilson4web on May 13, 2011, 3:04 pm

No  shafts, no seals, no electric clutches. See Ebay item:

Bob Wilson

Posted by bwilson4web on May 13, 2011, 4:36 pm

My wife's Prius compressor looks like this Ebay item: 140444294007

Toyota has been putting in electric AC compressors for both the NHW20,
2004-09, and ZVW30. They are exceptionally efficient and run even when
the engine is off. Again, something the gassers and diesels do not do.

Bob Wilson

Posted by Elmo P. Shagnasty on May 13, 2011, 6:07 pm
 In article

Hey, look everyone--techno-ignorant Bob strikes again, then again
pointedly ignores the actual questions when he's called out on his

Tell us again how the Prius A/C compressor has no seals.  We LOVE a good
sea story.

The more you talk, the more your complete and utter ignorance shows.

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