Pumps – Expansible chamber type – Including valve assembly – disassembly – or inspection...
Reexamination Certificate
2011-01-18
2011-01-18
Kramer, Devon C (Department: 3746)
Pumps
Expansible chamber type
Including valve assembly, disassembly, or inspection...
C137S539000, C251S337000
Reexamination Certificate
active
07871251
ABSTRACT:
A high-pressure pump for feeding fuel to an internal combustion engine has a pump housing; a fuel delivery duct; and a check valve, which is arranged along the delivery duct, and comprises a fuel chamber; a valve member mobile within the fuel chamber; and a biasing and guiding assembly, which has a fastening member suitable for being fastened to the pump housing and sealing the fuel chamber in a fluid-tight manner; a helical spring suitable for biasing the valve member; and a bushing arranged about the helical spring in order to prevent bending of the helical spring.
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Caroli Vittorio
Cavallo Angela
De Luca Alessandro
Ficarella Giuseppe
Guarino Rocco
Greigg Ronald E.
Kramer Devon C
Lettman Bryan
Robert & Bosch GmbH
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