Light Duty Technology Cost Analysis, Power - US Environmental ...

The two (2) main housings and both end caps (Figure D-64) are die cast aluminum
designs. The main housings (Figure D-65) both contain bores for the pistons and cross
flowing internal ports connecting both ends of the compressor. The shaft bearings are
also pressed into each of the main housings. The front end cap provides shaft sealing
while the rear cover contains a pressure relief valve. The entire assembly is secured with
five (5) long bolts that are inserted from the front through both housings and threads into
the rear end cap.
Figure D-64: AC Compressor End Caps
Figure D-65: AC Compressor Main Housings with Center Bores
D.6.1.2.2 Refrigeration / Air Conditioning Subsystem (HEV Fusion)
The electric compressor, including electronic controls, is completely self-contained
(Figure D-66). The compressor is a scroll design, unlike the gas piston version.
Although it could have been located virtually anywhere between the evaporator and
condenser, it is attached directly to the engine in the same location. The compressor
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