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公开(公告)号：US3618468A
公开(公告)日：1971-11-09
申请号：US3618468D
申请日：1969-06-24
Applicant: ARO CORP
Inventor： GARDNER RICHARD K , KAUTZ WILBERT G
CPC classification number: F01B31/02
Abstract: A RECIPROCATING PISTION AIR MOTOR WITH A PILOT PISTON OPERATED SLIDE VALVE THAT ADMITS AIR ALTERNATELY TO OPPOSITE ENDS OF THE DRIVE CYLINDER OF THE AIR MOTOR THROUGH SEPARATE STRAIGHT AIR PASSAGES WHICH ALSO SERVE AS EXHAUST PASSAGES. THE POSITION OF THE DRIVE PISTION IS SENSED BY STEMS EXTENDING FROM SPOOL VALVES POSITIONED AT OPPOSITE ENDS OF THE DRIVE PISTON CYLINDER CHAMBER. THE SPOOL VALVES CONTROL THE SUPPLY AND EXHAUST TO THE PILOT PISTON, THEREBY CONTROLLING THE SLIDE VALVE AND CONSEQUENTLY PRESSURE TO THE DRIVE PISTON.
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