Carburetor automatic choke construction
US4050424A · kind A · utility
12Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1973 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Aug 24, 1993 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M1/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The carburetor has a conventional automatic choke construction heating a bimetallic coil by engine exhaust stove heat to slowly open the choke valve during cold weather starts; supplemental heat is provided by an electrically controlled positive temperature coefficient heater device operable above a predetermined ambient temperature to move the choke valve open faster, to reduce emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.