Crashworthy fuel pump

Details Crashworthy fuel pump Crashworthy fuel pump

1979-10-01

1981-09-22

Freeh, William L.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

417471, F01B 1902, F04B 4314

Patent

active

042903475

ABSTRACT:
A crashworthy fuel pump has a body in which is formed a fuel intake cavity, a fuel discharge cavity, and a fuel pumping chamber. The body has an open end around the periphery of which is formed a lip. A flexible diaphragm is insertable into the open end of the body and the lip is bendable over the outer margin of the diaphragm to clamp the diaphragm within the body. A housing has one end formed for abutment with the open end portion of the body. The body and the housing are clamped together to form a unified assembly. The clamp is sufficiently strong to hold the assembly together when the assembly is subjected to normal forces, but breaks apart when the assembly is subjected to abnormal forces such as occur during a crash whereby the housing and the body can move apart from each other, the movement apart helping maintain the leak integrity of the diaphragm and the body.

REFERENCES:
patent: 1108146 (1914-08-01), Deegan
patent: 3362341 (1968-01-01), Quatredeniers et al.
patent: 3364870 (1968-01-01), Quatredeniers et al.

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