Fuel diaphragm pump with shut-off valve

Details Fuel diaphragm pump with shut-off valve Fuel diaphragm pump with shut-off valve

1977-07-21

1979-02-06

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

137 38, 180104, F02B 7708

Patent

active

041378890

ABSTRACT:
A diaphragm pump for feeding fuel to internal combustion engines is described. The pump comprises one inlet duct for fuel from a tank provided with an outlet duct, and an outlet duct for the fuel from the pump, and comprises a suction valve and a discharge valve operated by the diaphragm to transfer the fuel from the inlet duct to the outlet duct. The main feature of the pump is to comprise a shut-off valve completely separate from the suction and discharge valves and disposed in the path of the fuel between the inlet duct and outlet duct, said shut-off valve being open during normal operation of the pump, and closing to block the passage of the fuel when the motor vehicle on which the pump is mounted overturn.

REFERENCES:
patent: 3942504 (1976-03-01), Ellsworth
patent: 3983890 (1976-10-01), Rogers, Jr.
patent: 4011848 (1977-03-01), Coddington
patent: 4041967 (1977-08-01), Tsukisaka
patent: 4054116 (1977-10-01), Coddington

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