US4771750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for regulating the idling charge of an internal combustion engine
Assignee: Robert Bosch GmbH
•
Filing: 1987-09-02
•
Granted: 1988-09-20
•
Expires: 2007-09-02
Abstract
Abstract An apparatus is proposed for regulating the idling charge of an internal combustion engine having at least two banks each including a plurality of engine cylinders. Each bank has its own air intake line with throttle valves. Bypassing each throttle valve is a bypass line, in which a throttle opening is openable, each by a respective rotating slide, in accordance with engine operating characteristics by means of a common control motor via a common pivot shaft.
Inventors
- 👤 Helmut Breitkreutz
- 👤 Gerhard Kistner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:57
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/06; F02M3/07; F02M2003/067
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
A method for regulating the idling charge of an internal combustion engine having at least two banks of cylinders, each of said banks of cylinders having an air intake line associated with said cylinders, the steps of providing an intake line for each of said banks of cylinders, positioning throttle valves in each of said intake lines, providing bypass lines that lead around each of said throttle valves, controlling a throttle opening in each of said bypass lines to a variable extent by a control means in accordance with operating characteristics of said engine, and actuating said control means by a common control motor.
Claim 2
Independent Claim
104 words
A method for regulating the idling charge of an internal combustion engine having at least two banks of cylinders, each of said banks of cylinders having an air intake line associated with said cylinders, the steps of providing an intake line for each of said banks of cylinders, positioning throttle valves in each of said intake lines, providing bypass lines that lead around each of said throttle valves, controlling a throttle opening in each of said bypass lines to a variable extent by a control means in accordance with operating characteristics of said engine, and actuating said control means by a common control motor.
Claim 3
Independent Claim
100 words
An apparatus for regulating the idling charge of an internal combustion engine comprising at least two banks of cylinders, each of said banks of cylinders being provided with an own air intake line and each intake line further including a throttle valve provided with a bypass line, a throttle opening in said bypass line said throttle opening adapted to be opened to a variable extent by a respective control means in accordance with operating characteristics of said engine, said control means being secured on a common control element and said control element being actuatable by means of a control motor.
Claim 4
Independent Claim
100 words
An apparatus for regulating the idling charge of an internal combustion engine comprising at least two banks of cylinders, each of said banks of cylinders being provided with an own air intake line and each intake line further including a throttle valve provided with a bypass line, a throttle opening in said bypass line said throttle opening adapted to be opened to a variable extent by a respective control means in accordance with operating characteristics of said engine, said control means being secured on a common control element and said control element being actuatable by means of a control motor.
Claim 5
Dependent Claim
25 words
An apparatus as defined by claim 2, in which said control means comprise rotatable slide means and said control element further includes a pivot shaft.
Claim 6
Dependent Claim
40 words
An apparatus as defined by claim 2, in which said control means comprise axial slide means and said control element further includes an axially disposed shaft means adapted to control said axial slide means in accordance with engine operating characteristics.
Claim 7
Dependent Claim
20 words
An apparatus as defined by claim 4, in which said axial slide means is displaced by a reciprocating magnet system.
References Cited (Backward Citations)
US2833260A
Cited
US2939444A
Cited
US3023745A
Cited
US3664316A
Cited
US3713630A
Cited
US4494517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |