Patent US3841277A successfully refreshed from Google Patents.
US3841277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection valve for an internal combustion engine
Assignee: Individual
•
Filing: 1972-10-06
•
Granted: 1974-10-15
•
Expires: 1992-10-06
Abstract
Abstract An injection valve for an internal combustion engine, especially an injection valve for an internal combustion engine with an electronically controlled gasoline injection system in which the injection valve is secured at the internal combustion engine under interposition of a heat-insulating bush, which preferably has no contact whatsoever with the injection valve.
Inventors
- 👤 M Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:44
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/14; F02M61/145
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
82 words
An injection valve arrangement for an internal combustion engine, comprising: an injection valve secured at the internal combustion engine, a heat-insulating sleeve means interposed between said injection valve and the engine, said heat-insulating sleeve means being provided with only a small area contacting that part of the internal combustion engine at which it is secured, an elastic ring means interposed between said injection valve and said heat insulating sleeve means, said heat-insulating sleeve means having no contact whatsoever with the injection valve.
Claim 2
Dependent Claim
82 words
An injection valve arrangement for an internal combustion engine, comprising: an injection valve secured at the internal combustion engine, a heat-insulating sleeve means interposed between said injection valve and the engine, said heat-insulating sleeve means being provided with only a small area contacting that part of the internal combustion engine at which it is secured, an elastic ring means interposed between said injection valve and said heat insulating sleeve means, said heat-insulating sleeve means having no contact whatsoever with the injection valve.
Claim 3
Dependent Claim
23 words
An injection valve arrangement according to claim 1, characterized in that the internal combustion engine includes an electronically controlled gasoline fuel injection system.
Claim 4
Dependent Claim
16 words
An injection valve arrangement according to claim 1, wherein said sleeve means consists of a polyamide.
Claim 5
Dependent Claim
20 words
An injection valve arrangement according to claim 1, wherein said sleeve means consist of a polyamide reinforced with glass fibers.
Claim 6
Dependent Claim
21 words
An injection valve arrangement according to claim 4, wherein the internal combustion engine includes an electronically controlled gasoline fuel injection system.
Claim 7
Dependent Claim
58 words
An injection valve arrangement for an internal combustion engine, comprising: an injection valve secured at the internal combustion engine, a heat-insulating sleeve means interposed between said injection valve and the engine, an elastic ring means interposed between said injection valve and said head insulating sleeve means, said heat-insulating sleeve means having no contact whatsoever with said injection valve.
Claim 8
Dependent Claim
58 words
An injection valve arrangement for an internal combustion engine, comprising: an injection valve secured at the internal combustion engine, a heat-insulating sleeve means interposed between said injection valve and the engine, an elastic ring means interposed between said injection valve and said head insulating sleeve means, said heat-insulating sleeve means having no contact whatsoever with said injection valve.
Claim 9
Dependent Claim
16 words
An injection valve arrangement according to claim 6, wherein said sleeve means consists of a polyamide.
Claim 10
Dependent Claim
20 words
An injection valve arrangement according to claim 6, wherein said sleeve means consists of a polyamide reinforced with glass fibers.
Claim 11
Dependent Claim
95 words
An injection valve arrangement for an internal combustion engine having a cylinder head, the arrangement comprising: an injection valve secured at the cylinder head, a Substantially cup-shaped heat insulating member interposed between said injection valve and the cylinder head, said substantially cup-shaped member including an annular base portion and a peripheral wall extending between and spaced from said injection valve and the cylinder head, said annular base portion having at least a small portion thereof directly contacting the cylinder head and an elastic ring means interposed between said injection valve and said annular base portion.
Claim 12
Dependent Claim
95 words
An injection valve arrangement for an internal combustion engine having a cylinder head, the arrangement comprising: an injection valve secured at the cylinder head, a Substantially cup-shaped heat insulating member interposed between said injection valve and the cylinder head, said substantially cup-shaped member including an annular base portion and a peripheral wall extending between and spaced from said injection valve and the cylinder head, said annular base portion having at least a small portion thereof directly contacting the cylinder head and an elastic ring means interposed between said injection valve and said annular base portion.
References Cited (Backward Citations)
US2846986A
Cited
US3131866A
Cited
US3334617A
Cited
US3605703A
Cited
US3628510A
Cited
US3695235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |