Title:
FUEL FEED PUMP
Document Type and Number:
WIPO Patent Application WO/2000/055495
Kind Code:
A1
Abstract:
A fuel feed pump capable of compactly forming a fuel pressurizing means, reducing a contact load at an area where a rotating power is converted to a reciprocating one, and changing a contacting form to a surface contact so as to provide high efficiency and reliability, wherein an oscillating cylinder and an oscillating piston are combined with each other so as to form a crank pin drive, a spring for pressing the piston against a cam in an intake stroke is eliminated, and an intake path is formed in a crank pin and the oscillating piston so as to provide an action as an intake valve to open and close a communication between the crank pin intake path and the piston intake path.
Inventors:
TAKAO KUNIHIKO (JP)
HAYASE ISAO (JP)
KADOMUKAI YUUZOU (JP)
YAMADA HIROYUKI (JP)
HAYASE ISAO (JP)
KADOMUKAI YUUZOU (JP)
YAMADA HIROYUKI (JP)
Application Number:
PCT/JP1999/001317
Publication Date:
September 21, 2000
Filing Date:
March 17, 1999
Export Citation:
Assignee:
HITACHI LTD (US)
TAKAO KUNIHIKO (JP)
HAYASE ISAO (JP)
KADOMUKAI YUUZOU (JP)
YAMADA HIROYUKI (JP)
TAKAO KUNIHIKO (JP)
HAYASE ISAO (JP)
KADOMUKAI YUUZOU (JP)
YAMADA HIROYUKI (JP)
International Classes:
F02M59/04; F02M59/10; F04B9/04; (IPC1-7): F02M59/02; F02M55/02; F04B1/10; F04B9/04
Foreign References:
| JPH081419C2 | ||||
| JPH10299557A | 1998-11-10 | |||
| JPH08334076A | 1996-12-17 | |||
| JPH1172053A | 1999-03-16 | |||
| JPS49135652U | 1974-11-21 |
Attorney, Agent or Firm:
Sakuta, Yasuo (Ltd. 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo, JP)
Download PDF:
Previous Patent: FUEL INJECTOR DEVICE FOR INTERNAL COMBUSTION ENGINES AND INJECTION METHOD THEREOF
Next Patent: FUEL INJECTION SYSTEM
Next Patent: FUEL INJECTION SYSTEM