EP0107265A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Throttle system
Assignee: Motors Liquidation Co
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Filing: 1983-05-25
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Granted: —
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Expires: 2003-05-25
Abstract
Abstract Engine air flow is controlled by principal and supplementary throttles - the principal throttle 14 being positioned by a stepper motor 58 but also having a mechanical linkage to ensure at least partial throttle opening when required, and the supplementary throttle 18 being positioned by a mechanical linkage to permit primary control of engine output by the principal throttle while ensuring that engine output is minimized when required.
Inventors
- 👤 Bruce Dale Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 21:21
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/02; B60K31/04; B60K31/042; F; F02; F02D; F02D11/00; F02D11/06; F02D11/10; F02D9/00; F02D9/02; B60W; B60W2710/00; B60W2710/06; B60W2710/0616; F02D2009/0201; F02D2009/0264; F02D2009/0272; F02D2009/0277; F02D2011/101; F02D2011/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
281 words
A throttle system for controlling air flow through an engine air induction passage, in which principal and supplementary throttle valves (14 and 18) are diposed in series in the induction passage (12), each of the throttle valves is rotatable from a closed position through partially open positions to a wide-open position, and a principal throttle lever (22) is secured to the principal throttle valve and a supplementary throttle lever (33) is secured to the supplementary throttle valve, characterised in that a command lever (42) is rotatable from a minimum engine output command position through partial engine output command positions to a maximum engine output command position, electronically controlled means (58) is connected to the principal throttle lever (22) and is at least at times responsive to rotation of the command lever from one engine output command position to another engine output command position for rotating the principal throttle valve (14) from a position corresponding to said one engine output command position to a position corresponding to said another engine output command position, means (78, 32, 28, 24) is adapted to mechanically link the command lever and the principal lever for ensuring rotation of the principal throttle valve from its closed position to at least a partially open position in response to rotation of the command lever from a partial engine output command position to its maximum engine output command position, and means (40, 38, 34) mechanically links the command lever and the supplementary throttle lever for rotating the supplementary throttle valve from its closed position to its wide-open position in response to rotation of the command lever from its minimum engine output command position to a partial engine output command position.
Claim 2
Dependent Claim
281 words
A throttle system for controlling air flow through an engine air induction passage, in which principal and supplementary throttle valves (14 and 18) are diposed in series in the induction passage (12), each of the throttle valves is rotatable from a closed position through partially open positions to a wide-open position, and a principal throttle lever (22) is secured to the principal throttle valve and a supplementary throttle lever (33) is secured to the supplementary throttle valve, characterised in that a command lever (42) is rotatable from a minimum engine output command position through partial engine output command positions to a maximum engine output command position, electronically controlled means (58) is connected to the principal throttle lever (22) and is at least at times responsive to rotation of the command lever from one engine output command position to another engine output command position for rotating the principal throttle valve (14) from a position corresponding to said one engine output command position to a position corresponding to said another engine output command position, means (78, 32, 28, 24) is adapted to mechanically link the command lever and the principal lever for ensuring rotation of the principal throttle valve from its closed position to at least a partially open position in response to rotation of the command lever from a partial engine output command position to its maximum engine output command position, and means (40, 38, 34) mechanically links the command lever and the supplementary throttle lever for rotating the supplementary throttle valve from its closed position to its wide-open position in response to rotation of the command lever from its minimum engine output command position to a partial engine output command position.
References Cited (Backward Citations)
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