Intake control device
US4700676A · kind A · utility
9Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1985 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Dec 31, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M69/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake control device including a main intake passage provided with a throttle valve and a shut off valve disposed downstream of the throttle valve, and a bypass passage branched off from an upstream portion of the throttle valve and joined to the main intake passage at a portion downstream of the shut off valve. The amount of air through the bypass passage is controlled by an idle control valve. Owing to this arrangement, the residual gas within the downstream portion of the shut off valve is effectively removed by sufficient amount of scavenging air supplied by the bypass passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.