Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2005-05-10
2005-05-10
Miller, Carl S. (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S495000, C092S153000, C417S228000
Reexamination Certificate
active
06889665
ABSTRACT:
A high-pressure piston pump for a fuel system of an internal combustion engine, includes a housing, a piston, which defines a working chamber, and drive shaft having at least one crank section and supported in the housing by means of at least one shaft bearing. A piston bearing supports the piston at least indirectly against the crank section of the drive shaft. At least one of the bearings between parts that move in relation to one another is a hydrostatic bearing connected to the working chamber by means of a fluid connection. To increase efficiency, the fluid connection between the working chamber and the hydrostatic bearing is provided with a device operable to intermittently interrupt the fluid connection.
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Greigg Ronald E.
Miller Carl S.
Robert & Bosch GmbH
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