US4094289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for improved preconditioning of a fuel-air mixture
Assignee: Robert Bosch GmbH
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Filing: 1976-11-04
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Granted: 1978-06-13
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Expires: 1996-11-04
Abstract
Abstract This disclosure relates to an improved apparatus for preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine in which the throttle valve is provided with a multiple vaned valve structure that is pivotable about an axis extending transversely of the induction tube.
Inventors
- 👤 Wolf Wessel
- 👤 Volkhard Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:59
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/08; F02D9/10; F02D9/1005; F02D9/102; F02M; F02M29/00; F02M29/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
Apparatus for improved preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine with an arbitrarily manipulatable throttle valve, which cooperates with a coaxially arranged, induction tube contained, preconditioning device pivotable against a restoring force by means of the induction air quantity, further characterized in that the induction tube contains an integral laterally extending chamber having an arcuate interior surface into which the throttle valve and a multiple vaned pivotal throttle valve can be rotated.
Claim 2
Dependent Claim
84 words
Apparatus for improved preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine with an arbitrarily manipulatable throttle valve, which cooperates with a coaxially arranged, induction tube contained, preconditioning device pivotable against a restoring force by means of the induction air quantity, further characterized in that the induction tube contains an integral laterally extending chamber having an arcuate interior surface into which the throttle valve and a multiple vaned pivotal throttle valve can be rotated.
Claim 3
Dependent Claim
27 words
Apparatus for improved preconditioning of the fuel-air mixture as claimed in claim 1, in which a plurality of said multiple vanes are assembled as a unitary structure.
Claim 4
Dependent Claim
22 words
Apparatus for improved preconditioning of the fuel-air mixture as claimed in claim 2, in which the unitary structure is a cylindrical sector.
Claim 5
Dependent Claim
22 words
Apparatus for improved preconditioning of the fuel-air mixture as claimed in claim 3, in which the cylindrical sector has a hollow interior.
Claim 6
Dependent Claim
31 words
Apparatus for improved preconditioning of the fuel-air mixture as claimed in claim 1, in which said multiple vaned pivotal throttle valve is maintained in a neutral inoperative position by elastic means.
Claim 7
Dependent Claim
22 words
Apparatus for improved preconditioning of the fuel-air mixture as claimed in claim 5, in which said elastic means is a spiral spring.
Claim 8
Dependent Claim
95 words
Apparatus for improved preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine with an arbitrarily manipulatable throttle valve, which cooperates with a coaxially arranged, induction tube contained, preconditioning device pivotable against a restoring force by means of the induction air quantity, further characterized in that the induction tube contains a multiple vaned pivotal throttle valve and said induction tube further includes an integral laterally extending chamber into which at least one vane of said throttle valve is movable independently of other of said multiple vanes.
Claim 9
Dependent Claim
95 words
Apparatus for improved preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine with an arbitrarily manipulatable throttle valve, which cooperates with a coaxially arranged, induction tube contained, preconditioning device pivotable against a restoring force by means of the induction air quantity, further characterized in that the induction tube contains a multiple vaned pivotal throttle valve and said induction tube further includes an integral laterally extending chamber into which at least one vane of said throttle valve is movable independently of other of said multiple vanes.
Claim 10
Dependent Claim
105 words
Apparatus for improved preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine with an arbitrarily manipulatable throttle valve, which cooperates with a coaxially arranged, induction tube contained, preconditioning device pivotable against a restoring force by means of the induction air quantity, further characterized in that the induction tube contains an integral laterally extending chamber arranged to receive a multiple vaned pivotal throttle valve, in which a plurality of said multiple vanes are assembled as a unitary structure, and in which at least a portion of said multiple vanes being provided with means defining openings therein.
Claim 11
Dependent Claim
105 words
Apparatus for improved preconditioning of the fuel-air mixture in the induction tube of a mixture compressing and externally ignited internal combustion engine with an arbitrarily manipulatable throttle valve, which cooperates with a coaxially arranged, induction tube contained, preconditioning device pivotable against a restoring force by means of the induction air quantity, further characterized in that the induction tube contains an integral laterally extending chamber arranged to receive a multiple vaned pivotal throttle valve, in which a plurality of said multiple vanes are assembled as a unitary structure, and in which at least a portion of said multiple vanes being provided with means defining openings therein.
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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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |