Cooling sprayer with valve
US7559296B2 · kind B2 · utility
8Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2008 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Mar 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7929
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The internal combustion engine piston cooling sprayer comprises a sprayer body (1) with an axial through-passage (12) in which is fixed a tubular guide liner (4). The tubular guide liner (4) is fixed in the sprayer body (1) by its downstream section (4c), while its upstream section (4b) remains away from the wall of the axial through-passage (12), to allow the cooling fluid to flow. A valve (2) slides in an axial through-passage of the tubular guide liner (4), and is urged by a return spring (3) toward a main seat formed in the mass of the sprayer body (1). This produces a compact and reliable sprayer of relatively low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.