Barrel-type throttle valve for engine air intake
US4909211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1989 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | May 17, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87531
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A throttle valve arrangement for an engine air intake includes an engine intake air passage having a longitudinal direction of air flow. A cylindrical bore extends laterally across the passage and has diametrically opposed openings longitudinally aligned with the passage. A cylindrical valve barrel or element is journalled for rotation within the bore and has an aperture extending diametrically therethrough for variably interconnecting the bore openings as a function of rotation of the valve element within the bore. A channel extends around the periphery of the valve element between opposite ends of the air aperture. A linkage projects from one end of the valve element for variably and controllably rotating the valve element within the bore between a fully open position in which the barrel aperture interconnects passages in the bore and a fully closed position in which air flow between the passages is routed through the channel around the periphery of the valve element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.