Expansible chamber devices – With lubricating means
Reexamination Certificate
2006-03-14
2006-03-14
Lazo, Thomas E. (Department: 3745)
Expansible chamber devices
With lubricating means
C092S073000
Reexamination Certificate
active
07011012
ABSTRACT:
A high-pressure fuel pump for internal combustion engines with direct injection includes a housing with a drive chamber in the housing and an eccentric shaft disposed in the drive chamber. A pumping element can be set into a reciprocating motion via the eccentric shaft. To lengthen the service life of the fluid pump the drive chamber in a region located ahead of the pumping element in terms of the direction of rotation of the eccentric shaft or camshaft, communicates with a lubricant relief region.
REFERENCES:
patent: 328521 (1885-10-01), Richards
patent: 2697403 (1954-12-01), Benedek
patent: 3074625 (1963-01-01), Paterson et al.
patent: 837087 (1960-06-01), None
patent: 1159684 (1969-07-01), None
patent: 2057065 (1981-03-01), None
Hartsleben Alois
Rabanser Guenther
Tasche Andreas
Walkner Josef
Greigg Ronald E.
Lazo Thomas E.
Leslie Michael
Robert & Bosch GmbH
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