Pumps – With muffler acting on pump fluid
Patent
1996-04-04
1997-05-06
Gluck, Richard E.
Pumps
With muffler acting on pump fluid
417397, 417399, F04B 3900
Patent
active
056264674
ABSTRACT:
A modular air-driven pump includes an air motor and various sized fluid pumps which are interchangeably mountable to the air motor. The air motor includes first and second bulkheads, a motor cylinder held between the first and second bulkheads, and a motor piston within the motor cylinder. An air control system supplies air from an air inlet to the motor cylinder alternately on each side of the motor piston while venting the motor cylinder on an opposite side of the motor piston to an air outlet to reciprocate the motor piston. The first bulkhead has an opening substantially coaxial with the motor cylinder and first and second cylindrically-shaped and coaxial recesses at an outward side of the first bulkhead which surround the opening The second recess has larger diameter and a smaller depth than the first recess so that they are stair stepped. Each of the first and second fluid pumps include an end block, a pump cylinder held between the end block and the first bulkhead coaxial with the motor cylinder and within one of the recesses, and a pump piston within said pump cylinder. The pump piston is removably connected to the motor piston through the opening for reciprocable movement of the pump piston with the motor piston. The pump cylinder of the first fluid pump is sized and shaped for cooperating with the first recess of the first bulkhead and the pump cylinder of the second fluid pump is sized and shaped for cooperating with the second recess of the first bulkhead. An air-motor enclosure surrounds the air motor and a fluid-pump enclosure surrounds the fluid pump. The fluid-pump enclosure forms an exhaust plenum in fluid communication with the air outlet and has an exhaust outlet to reduce noise created by exhausting air.
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Gluck Richard E.
Teledyne Industries Inc.
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