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Patent Searching and Data


Title:
高圧燃料ポンプ
Document Type and Number:
Japanese Patent JP5642925
Kind Code:
B2
Abstract:
A high pressure fuel pump (20) that pressurizes and supplies a fuel by driving a cam (21) such that a plunger (23) reciprocates, the high pressure fuel pump (20) comprises a lifter guide (25) having a guide hole (25A), a lifter (22) that is disposed between the cam (21) and the plunger (23) and is fitted into the guide hole (25A) to be free to slide so as to transmit a driving force from the cam (21) to the plunger (23), an oil collection portion (27) that is provided above the guide hole (25A) so as to surround a periphery of the lifter (22), and stores a lubricating oil for lubricating a sliding portion between the lifter (22) and the guide hole (25A), and an oil supply passage (25C) for supplying the lubricating oil to the oil collection portion (27). As a result, a reduction in a lubricating performance with regard to the lifter (22) in a position away from an opening portion of the oil supply passage (25C) is suppressed.

Inventors:
丸山 典良
小池 智之
Application Number:
JP2008211490A
Publication Date:
December 17, 2014
Filing Date:
August 20, 2008
Export Citation:
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Assignee:
日産自動車株式会社
International Classes:
F02M59/44; F02M59/10
Attorney, Agent or Firm:
Masaki Goto
Yasunari Mita
Masaaki Iida
Takahiro Nozue