Diesel throttle valve control system
US4365600A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1980 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | Aug 1, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake air throttle valve control system for a diesel engine which greatly reduces vibration, noise and rough engine running at idling speeds. An intake passage connected in series with the intake manifold of the engine is divided into first and second parallel intake passages. A throttle valve is disposed in a first intake passage to provide a throttling effect therein in response to predetermined engine conditions such as engine temperature, oil line pressure and/or exhaust manifold pressure. A negative pressure control valve is disposed in the second passage to maintain a negative pressure downstream of first and second passages at a fixed value to prevent the pressure from being overly reduced by the throttle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.