Coaxial oil pump for barrel engines
US7581518B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2007 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Nov 25, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/0269
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A barrel internal combustion engine includes a plurality of pistons, a drive shaft, a cam plate and an oil pump. The plurality of pistons is slidably coupled to a plurality of cylinders for reciprocal movement along axes generally parallel with a central axis. The drive shaft is rotatable about the central axis. The cam plate is coupled to the drive shaft for rotation therewith. The cam plate is operatively coupled to the pistons to cause rotation of the drive shaft about the central axis in response to the reciprocal movement of the pistons. The oil pump has a rotatable input member coupled coaxially with the drive shaft for rotation therewith about the central axis for actuating the oil pump. The oil pump may be provided in the form of a geroter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.