Intake air rate controlling device for an internal combustion engine
US6626142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Aug 14, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D11/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an intake air rate controlling device including a throttle body, forming an air-intake passage, and a plate-like throttle valve, rotatably supported by the throttle body through a throttle shaft, wherein an intake air rate supplied to an internal combustion engine is controlled by a rotation of the throttle valve, and air-flow controlling means is located on an upper stream side or a lower stream side of the throttle valve for suppressing a variation of a torque, effecting on the throttle valve by a hydrodynamic force generated by an intake air, whereby excellent durability, excellent reliability, and high performances are obtainable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.