Blow-by gas heating system for internal combustion engines
US4768493A · kind A · utility
42Cited by
15References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1985 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Apr 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An arrangement for heating the blow-by gas system of a water cooled type internal combustion engine by providing engine coolant conduits in heat exchange relationship with the blow-by gas hoses and PCV valve. In one embodiment a water jacket surrounds the PCV valve. The heat exchangers between the blow-by gas system hoses and the coolant hoses are parallel adjacent conduits in one embodiment and concentric conduits in another embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.