A 7-cylinder, wobble plate type, infinitely variable displacement, (IVD), compressor has been developed to meet the following requirements as set forth by the world automotive manufacturers: Wide range of capacity control to eliminate clutch cycling which causes temperature and humidity fluctuations of louver outlet air and unexpected engine load variations. Near perfect protection of the evaporator against icing. Reliability under all field operating conditions. Quiet operation in a compact and lightweight package to suit the new trends in automotive design. A simpler mechanism has been applied to the variable angle cam drive and wobble plate rotation prevention method than with the conventional IVD compressor. The 7-cylinder design, with fewer parts for the piston drive mechanism, enables a quiet compressor of 161.3 cc displacement in a 118 mm diameter casing. An internal control valve is integrated in the center of the valve plate assembly. Mass flow rate compensation is attained using a discharge pressure sensing rod which modulates the opening pressure of the bellows valve.
A 7-cylinder IVD compressor for automotive air conditioning
Siebenzylinderkompressor mit unendlich variabler Verdichtung fuer Klimaanlagen in Kraftfahrzeugen
SAE-Papers ; Mar ; 1-10
1989
10 Seiten, 7 Bilder, 5 Tabellen, 7 Quellen
Aufsatz (Konferenz)
Englisch
A 7-cylinder ivd compressor for automotive air conditioning
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