Title:
DISTRIBUTION TYPE FUEL INJECTION PUMP
Document Type and Number:
Japanese Patent JP3314650
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce vibrations and sounds produced by a fuel injection pump by improving the rigidity of the belly part of a pump housing by forming in the pump housing a rib of a predetermined length along the axis of a drive shaft in the direction parallel to both ends of a timer piston.
SOLUTION: In a distribution type fuel injection pump, when fuel is sent, a distribution roller rotates and goes on the peak of a cam ring to move a plunger in a bore cylinder to the center in the radial direction, whereby the fuel in a compression room is pressurized. At this time, a compressive force is applied to the cam ring to collide the cam ring with a pump housing, whereby sounds are produced. Since vibrations produced in the belly part of the pump housing 10 by such a collision is big on the axis of a drive shaft, a rib 100 having a length of the belly part is formed along the axis of the shaft at the belly part of the pump housing 10 in the direction parallel to both ends of a timer piston 9 to thereby reduce the vibrations.
More Like This:
Inventors:
Kazuhide Uchida
Mikio Matsuda
Yukihiro Shinohara
Moriyasu Goto
Mikio Matsuda
Yukihiro Shinohara
Moriyasu Goto
Application Number:
JP3049797A
Publication Date:
August 12, 2002
Filing Date:
February 14, 1997
Export Citation:
Assignee:
株式会社日本自動車部品総合研究所
株式会社デンソー
株式会社デンソー
International Classes:
F02M41/14; F02M59/44; (IPC1-7): F02M41/14; F02M59/44
Domestic Patent References:
| JP814133A | ||||
| JP617796A | ||||
| JP8247034A |
Attorney, Agent or Firm:
Hirohiko Usui
Previous Patent: HIGH TENSILE STRENGTH STEEL EXCELLENT IN EARTHQUAKE RESISTANCE
Next Patent: METHOD AND SYSTEM FOR DECIDING SIDE COLLISION OF VEHICLE
Next Patent: METHOD AND SYSTEM FOR DECIDING SIDE COLLISION OF VEHICLE