Oil pan inner tank valve structure
US9399935B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 9, 2011 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Jul 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7358
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an oil pan inner tank valve structure, a disc-shaped float valve is arranged below a valve port that provides fluid communication between the inside and outside of a bottom wall of an inner tank, and a lower cover is arranged below the float valve. In addition, a center recess is depressed at a lower surface center of the float valve, and a lateral movement restricting pin is upright from the lower cover and is constantly engaged with the center recess by recess/protrusion engagement. The lower cover restricts a vertically movable range of the float valve. In addition, the lateral movement restricting pin restricts lateral movement of the float valve so that a top portion of an upper surface bulged portion vertically constantly faces an area inside a valve seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.