Pumps – Successive stages – With interstage discharge or additional discharge from...
Patent
1976-12-06
1980-06-10
Gluck, Richard E.
Pumps
Successive stages
With interstage discharge or additional discharge from...
417410, 417435, 417540, 418135, F04B 300, F04B 1700
Patent
active
042070333
ABSTRACT:
An improved pump and motor assembly is utilized to regulate a flow of fuel to an internal combustion engine. All of the fluid connections to the pump are connected with one end of the assembly. The pump and motor are both enclosed within a one-piece casing having a tubular side wall which is integrally formed with an end wall. The end section to which all of the fluid connections for the pump are made, is connected across the open end of the tubular side wall. To provide for the removal of vapor bubbles from the fuel, fuel supplied under pressure from the tank flows through an inlet cavity which circumscribes the pump and has an axial extent which is equal to the length of the pump. In addition, a screen at the inlet of the pump itself blocks the flow of vapor bubbles from the inlet cavity to the pump. The forces applied against opposite sides of the moving components of the pump by the inlet fluid are substantially balanced. Fluid pressure pulses in fuel discharged from the pump are dampened in an outlet cavity by a seal member which sealingly engages an outer cheek plate of the pump to separate the inlet and outlet cavities. A single spring element is utilized to perform the dual functions of pressing the seal member into engagement with the outer cheek plate of the pump and to press the outer cheek plate and cam ring against the inner cheek plate.
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Cass Richard
Drutchas Gilbert H.
Suttkus David J.
Gluck Richard E.
TRW Inc.
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