Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism
US8393881B2 · kind B2 · utility
38Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2009 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Jan 11, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B39/125
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.