Title:
INJECTION PUMP, AND DME FUEL FEED DEVICE OF DIESEL ENGINE WITH THE INJECTION PUMP
Document Type and Number:
WIPO Patent Application WO/2003/040549
Kind Code:
A1
Abstract:
An injection pump, comprising an injection pump element (2) having a communication route to communicate an injection pipe (3) connected to a fuel feed outlet (212) through a purge passage (242) formed in a delivery valve seat (24), a purge passage (252) formed in a plunger barrel (25), and a purge port (253) with the inner peripheral surface of the plunger barrel (25), wherein, in non−injection state, a plunger (26) is rotated in circumferential direction to a rotating position allowing a purge groove (265) formed in the outer peripheral surface of the plunger (26) to communicate with the purge port (253) formed in the inner peripheral surface of the plunger barrel (25), the purge groove (265) is allowed to communicate with an oil reserving chamber (11) through a hole (263) and a cutout part (262) and, even if a delivery valve (23) is closed in the non−injection state, the injection pipe (3) is allowed to communicate with the oil reserving chamber (11).
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Inventors:
NODA TOSHIFUMI (JP)
NOZAKI SHINYA (JP)
USHIYAMA DAIJO (JP)
HAYASAKA YUKIHIRO (JP)
NOZAKI SHINYA (JP)
USHIYAMA DAIJO (JP)
HAYASAKA YUKIHIRO (JP)
Application Number:
PCT/JP2002/011657
Publication Date:
May 15, 2003
Filing Date:
November 08, 2002
Export Citation:
Assignee:
BOSCH AUTOMOTIVE SYSTEMS CORP (JP)
NODA TOSHIFUMI (JP)
NOZAKI SHINYA (JP)
USHIYAMA DAIJO (JP)
HAYASAKA YUKIHIRO (JP)
NODA TOSHIFUMI (JP)
NOZAKI SHINYA (JP)
USHIYAMA DAIJO (JP)
HAYASAKA YUKIHIRO (JP)
International Classes:
F02M21/08; F02M53/00; F02M55/00; F02M59/10; F02M59/26; F02M59/36; F02M59/44; F02M59/46; (IPC1-7): F02M59/44; F02M59/26
Foreign References:
| JPH10281030A | 1998-10-20 | |||
| JPS5179226U | 1976-06-23 |
Attorney, Agent or Firm:
Ishii, Hiroki (2-5-22 Kyobash, Chuo-ku Tokyo, JP)
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