Hydraulic gear pump power pack for a power steering system with separate flow paths for fluid noise reduction
US6183213A · kind A · utility
4Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Mar 17, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C15/0049
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic pump [10] for use in a power steering system includes a power steering fluid chamber [26] for receiving power steering fluid from a fluid source. The power steering fluid chamber [26] is in fluid communication with a first fluid conduit [40] and a second fluid conduit [46] each of which has different lengths. A pressure valve attenuator [52] has two ports, one in communication with the first fluid conduit [40] and one in communication with the second fluid conduit [46] for receiving power steering fluid from the power steering fluid chamber [28] such that fluid borne noise in the power steering system is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.