Joint structure for oil pump shaft and balancer shaft
US6758183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/0276
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A joint portion 33 of an oil pump shaft 19 and a balancer shaft (output-side balancer shaft 12) is provided in an open space between opposite surfaces of a sidewall 4b of an oil pump housing 4 and a sidewall 5c1-5c2 (a bearing portion) of a balancer shaft housing 5. The joint portion 33 of the oil pump shaft 19 and the balancer shaft 12 is comprised of a pair of engageable portions 33a, 33b provided at each end of the balancer shaft 12 and the oil pump shaft 19, respectively. The engageable portions 33a, 33b are disengageably engaged with each other in radial directions of the shafts 12, 19. The joint portion 33 can be seen from the outside, and thus a joining operation can be performed with ease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.