Brooks Haidt Haffner & Delahunty
Refrigerant gas guiding mechanism in piston type compressor
 A refrigerant gas suction valve mechanism for a reciprocating piston type compressor is disclosed. The mechanism has a drive shaft rotatably disposed in a gas receiving chamber where uncompressed gas is introduced, Double- headed pistons provided in cylinder bores compress the gas when the pistons move from the bottom dead center to the top dead center. A suction port selectively permits and blocks communication between the suction passage and the compression chambers. A resilient member holds a rotary valve in contact with an inner wall of a recessed chamber with predetermined force. The suction port is maintained at a predetermined distance from a point where the pistons reach the top dead center so that the suction port is closed by the pistons before the pistons reach the top dead center. 
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
F
F04B
inventional
Hiromi Toshiro Hitoshi Koichi
Kitayama Fujii Inukai Ito