Patent US1809164A successfully refreshed from Google Patents.
Patent US4903644A successfully refreshed from Google Patents.
US4903644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air intake section of an internal combustion engine
Assignee: Dr Ing HCF Porsche AG
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Filing: 1989-07-21
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Granted: 1990-02-27
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Expires: 2009-07-21
Abstract
Abstract An elastic pipe piece, which is arranged between the air filter and a throttle housing in the air intake section, in proximity of both ends, has one bellows respectively pointing to the outside. The bellows compensate tolerances and have a vibration-disconnecting effect. Two pipe sockets are contructed integrally with the pipe piece, a crankcase ventilating system or an idling adjuster being connected to these pipe sockets. In addition, in proximity of an accommodating means, a clamping fork is constructed integrally with the pipe piece, which accommodates the idling adjuster and fixes it in position.
Inventors
- 👤 Klaus Groger
- 👤 Herbert Ampferer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:11
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10314; F02M35/10321; F02M35/10006; F02M35/10019; F02M35/10091; F02M35/10137; F02M35/10209; F02M35/10222; F02M35/10373; F02M35/10386; F05; F05C; F05C2225/00; F05C2225/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
An air intake section of an internal combustion engine comprising: an elastic pipe piece means arranged between an air filter and a throttle housing; ring-shaped elastic bellows means, which are curved towards an outside of the pipe piece means, positioned adjacent ends of the pipe piece means, the bellow means having a wall thickness less than a wall thickness of the pipe piece means; pipe socket means for connecting air-carrying pipes to the pipe piece means and clamping fork means for connecting a component to the pipe piece means.
Claim 2
Dependent Claim
89 words
An air intake section of an internal combustion engine comprising: an elastic pipe piece means arranged between an air filter and a throttle housing; ring-shaped elastic bellows means, which are curved towards an outside of the pipe piece means, positioned adjacent ends of the pipe piece means, the bellow means having a wall thickness less than a wall thickness of the pipe piece means; pipe socket means for connecting air-carrying pipes to the pipe piece means and clamping fork means for connecting a component to the pipe piece means.
Claim 3
Dependent Claim
20 words
An air intake section according to claim 1, wherein the clamping fork means completely encloses a component fixed in it.
Claim 4
Dependent Claim
22 words
An air intake section according to claim 1, wherein the clamping fork means more than half encloses a component fixed in it.
Claim 5
Dependent Claim
35 words
An air intake section according to claim 1, wherein an idling adjuster means is fixed in the clamping fork means, the idling adjuster means having a cylindrical connection for insertion into the pipe socket means.
Claim 6
Dependent Claim
43 words
An air intake section according to claim 1, wherein the wall thickness of the pipe piece means amounts to at least about 4 mm, and wherein the pipe piece means is made of a rubber material with a shore hardness of approximately 55-60.
Claim 7
Dependent Claim
22 words
An air intake section according to claim 1, wherein the pipe piece means is constructed as almost a quarter of an elbow.
Claim 8
Dependent Claim
73 words
An air intake section according to claim 1, wherein the pipe socket means includes first and second pipe socket means in a bending plane of the pipe piece means, which lead into the pipe piece means at opposite points, and wherein central axes of the first and second pipe socket means are aligned almost in parallel with respect to an air flow direction at an inlet side end of the pipe piece means.
Claim 9
Dependent Claim
44 words
An air intake section according to claim 1, wherein the ends of the pipe piece means and the first and second pipe socket means, on an outside, have at least one surrounding projection means which is used for the fixing of tightening strap means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |