F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/36
F04B 43/02 (2006.01) F01L 23/00 (2006.01) F04B 9/115 (2006.01) F04B 43/073 (2006.01)
Patent
CA 1208074
FLUID-OPERATED RECIPROCATING PUMP ABSTRACT OF THE DISCLOSURE A fluid-operated reciprocating pump having a central housing, a pair of chamber housings attached to opposite sides of the central housing, and a pumping diaphragm in each chamber housing that separates an inner pressure chamber from an outer pressure chamber. Each outer pressure chamber is connected to an inlet manifold and a discharge manifold, and one-way check valves control the flow of the material being pumped through the chamber. The pumping diaphragms are con- nected together by a connecting rod that extends through the central housing. The central housing defines inlet and out- let ports for operating fluid, a reversing valve chamber, a pilot valve chamber, and passages connecting the reversing valve chamber to the pilot valve chamber, the inlet port and the inner pressure chambers. A reversing valve is slidably mounted in the reversing valve chamber to control the supply of operating fluid to alternate from one inner chamber to the other, and a pilot valve is slidably mounted in the pilot valve chamber to control the movement of the reversing valve. The pilot valve is controlled by a pair of lever assemblies engaged and pivoted by the connecting rod and located within the central housing.
435343
Macrae & Co.
Rupp Warren-Houdaille Inc.
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