Blow-by gas treatment for engine
US5967127A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jul 20, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To improve the low-temperature resistance of a blow-by gas treatment device. An air cleaner is connected through a carburetor to the intake side of a cylinder portion constituting an engine in a four-wheel buggy. A blow-by gas induction pipe is provided to connect a crankcase and one side surface of the air cleaner, so as to induce a blow-by gas from the crankcase to a return chamber defined in the air cleaner at one side portion thereof. An exhaust pipe extends rearwardly from the exhaust side of the cylinder portion along a part of the induction pipe, and is connected to a muffler. The muffler is located in the vicinity of the return chamber in the air cleaner, so as to warm the return chamber by the heat radiated from the muffler, thereby ensuring good returnability of the blow-by gas even at low temperatures. The exhaust pipe similarly warms the induction pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.