Thermal shock barrier for injection pump

Details Thermal shock barrier for injection pump Thermal shock barrier for injection pump

1984-10-01

1985-02-26

Gluck, Richard E.

Pumps

Combined

417462, F04B 2100, F04B 1702

Patent

active

045015325

ABSTRACT:
A diesel fuel injection pump having a rotary fuel distributor head including a rotor disposed in very close clearance thereinside wherein a thermal shock barrier of an elastomeric material having a low thermal conductivity is disposed about the outside of the distributor head, the barrier having apertures through which the injection pipes pass. In its preferred form, the barrier is a one piece member fitting the distributor head beneath the injection pipe nuts. In an alternative form, the barrier comprises two pieces mating along the injection pipe apertures and enclosing the connections between the injection pipes and the distributor head. The barrier need not be waterproof but must be sufficiently protective of the distributor housing to prevent substantial amounts of water from contacting the distributor head.

REFERENCES:
patent: 3446198 (1969-05-01), Simko
patent: 4100903 (1978-07-01), Roosa
patent: 4336781 (1982-06-01), Overfield
patent: 4348993 (1982-09-01), Ueno et al.
patent: 4362141 (1982-12-01), Mowbry
Hess and Salzgeber "The Stanadyne D82 Distributor Pump for Medium Duty Diesels" Sep. 10, 1979, SAE 790899, pp. 1-4.

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