Integral PCV system
US6234154A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2000 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Jun 12, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2013/0472
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine comprises an engine block having a crankshaft housed in a crankcase portion of the engine block and a coolant jacket adjacent to cylinder walls defining a coolant passage through the engine block to transfer heat from the cylinder walls to coolant flowing therethrough. An oil separator, formed integrally within said engine block and adjacent the coolant jacket, operates to separate oil from blowby gas accumulating in the crankcase portion and to transfer heat from the coolant passage to warm the blowby gas. The engine further includes a cylinder head mounted on an upper surface of the engine block, which may include a PCV passage to transfer blowby gas from the oil separator to the intake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.