Method and apparatus for controlling at least one throttle cross section in a control line
US4494517A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Jun 22, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M2003/067
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and an apparatus for controlling at least one throttle cross section in a control line, in particular in a line carrying operating medium for an internal combustion engine, such as an air bypass around the throttle valve of the engine. The apparatus includes an electric control motor, by means of which a throttle device having a circular-segmental control section can be rotated. The control section is rotatable in a control opening intersecting the control line, and the control line and control opening are connected with one another by a throttle opening which has limiting faces. When the control motor is not excited or if the control motor should fail, the control section is rotated by a spring element against a stop, into a position in which a control edge together with the limiting face opens a first throttle cross section, which is sufficiently large to supply the engine with a sufficient quantity of air for the prevailing situation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.