Composite member fixing structure
US8297900B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 30, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Oct 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/75
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A composite member 12, which is formed by integrating an OCV housing 14 and a cylinder head cover 13, is fixed to a cam cap 15 by a bolt 20. The bolt 20 is passed through a bolt insertion hole 16 of the composite member 12 and fastened to the cam cap 15. A step portion 20d is formed in a shank 20c between a head 20a and a threaded rod 20b of the bolt 20. A circumferential groove 21 is formed in the shank 20c between the step portion 20d and the head 20a of the bolt 20. The circumferential groove 21 extends along the outer circumferential surface of the shank 20c. An annular sealing member 22 is fitted in the groove 21. The threaded rod 20b of the bolt 20 is then screwed into the internal thread 19 of the cam cap 15, which is a coupled member. At this time, the step portion 20d of the bolt 20 contacts a contacting portion 16c in the bolt insertion hole 16 of the OCV housing 14. Also, the sealing member 22 contacts the inner circumferential surface of the bolt insertion hole 16 of the cylinder head cover 13.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.