US5560335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling the power of an internal combustion engine
Assignee: Mannesmann VDO AG
•
Filing: 1994-09-09
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Granted: 1996-10-01
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Expires: 2014-09-09
Abstract
Abstract In order to control the air throughput through the intake pipe of an internal combustion engine, the power of which is controlled by displacement of a throttle valve, there is provided in the intake pipe in known manner a dome-shaped contour which follows the throttle valve over a part of the adjustment angle. Also, the cable pulley has a circular shape in a useful region of operation, but the pulley is fastened eccentrically on the throttle valve. In this way, there is obtained a sensitive displacement by electric motor of the throttle valve in the idling range on the one hand, and a very direct response of the throttle valve to a movement of the gas pedal on the other hand.
Inventors
- 👤 Torsten Bellon
- 👤 Harald Frey
- 👤 Andreas Radlinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:26
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/08; F02D9/10; F02D9/1065; F02D9/02; F02D2009/0201; F02D2009/0261; F02D2009/0289
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
141 words
A device for controlling the power of an internal combustion engine by means of a throttle valve which is rotatably mounted in an intake connection to the engine, wherein a displacement of the throttle valve is effected by an electromotive actuator in the idle range and by a gas pedal via a cable and a pulley in the driving range, wherein the device comprises a cable pulley connecting with a shaft of the throttle valve, and the cable pulley is circular, but is fastened eccentrically on the shaft of the throttle valve; a region of the device which encloses the throttle valve is dome shaped; and the eccentricity in the mounting of the cable pulley to the shaft cooperates with the dome-shaped region to provide a linear relationship between air flow through the device and rotational angle of the throttle valve.
Claim 2
Independent Claim
141 words
A device for controlling the power of an internal combustion engine by means of a throttle valve which is rotatably mounted in an intake connection to the engine, wherein a displacement of the throttle valve is effected by an electromotive actuator in the idle range and by a gas pedal via a cable and a pulley in the driving range, wherein the device comprises a cable pulley connecting with a shaft of the throttle valve, and the cable pulley is circular, but is fastened eccentrically on the shaft of the throttle valve; a region of the device which encloses the throttle valve is dome shaped; and the eccentricity in the mounting of the cable pulley to the shaft cooperates with the dome-shaped region to provide a linear relationship between air flow through the device and rotational angle of the throttle valve.
Claim 3
Dependent Claim
34 words
A device according to claim 1, wherein a distance between the geometric center of the pulley and its point of rotation on the shaft is 5% to 60% of a radius of the pulley.
References Cited (Backward Citations)
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US5076231A
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-10-01 | 2000-04-01 | 2000-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-01 | 2004-04-01 | 2004-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-01 | 2008-04-01 | 2008-10-01 | $7700.00 | Window Closed / Lapsed |