Title:
PUMP ASSEMBLY AND TAPPET FOR THE SAME
Document Type and Number:
Japanese Patent JP2009097517
Kind Code:
A
Abstract:
To provide a tappet to be suitably used in a fluid pump and a pump assembly having the tappet.
The tappet 60 includes a sidewall portion 62 and end faces 64, 66, 72 forming its internal chamber, wherein the end faces 64, 66, 72 include a driving surface 66 to make cooperation with the drive constitution when the tappet is in service and a plurality of vents 68 passing through the end faces 64, 66, 72 and feeds fluid between the internal chamber 70 and the outside region of the tappet 60. A plurality of longitudinally stretching grooves 76 are formed at the inner surface of the sidewall portion 62, and brought in communication with the vents 68 so as to form a flow passage for allowing the fluid to flow into the internal chamber 70.
Inventors:
GARLAND PAUL F
BROWN ANDREW D
BROWN ANDREW D
Application Number:
JP2008266973A
Publication Date:
May 07, 2009
Filing Date:
October 16, 2008
Export Citation:
Assignee:
DELPHI TECH INC
International Classes:
F04B1/04; F02M59/10; F04B1/047; F04B1/053; F04B9/04; F04B53/14; F04B53/16
Domestic Patent References:
| JP2004218459A | 2004-08-05 |
Foreign References:
| WO2000019095A1 | 2000-04-06 |
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Yamazaki Kosaku
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Yamazaki Kosaku
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