Patent US4510896A successfully refreshed from Google Patents.
US4510896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-cylinder combustion engine intake manifold
Assignee: Dr Ing HCF Porsche AG
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Filing: 1983-11-04
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Granted: 1985-04-16
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Expires: 2003-11-04
Abstract
Abstract An air intake manifold arrangement is provided for an internal combustion engine of boxer or V-type having two similar groups of cylinders. The manifold I formed as an I-shaped distribution piece with a straight connecting pipe connecting two resonance chambers. A suction connection fitting is perpendicular to and opens into the connecting pipe with a single opening. Individual suction pipes extend parallel to the connecting pipe and outwardly of the respective resonance chambers to respective ones of the cylinders.
Inventors
- 👤 Erwin Rutschmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:20
CPC Classifications
F; F02; F02B; F02B27/00; F02B27/008; F02M; F02M35/00; F02M35/10; F02M35/10006; F02M35/10026; F02M35/10045; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1824; F02B75/22; F02B75/24; F02B75/243; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
155 words
An air intake manifold arrangement for an internal combustion engine of the type having two similar groups of cylinders arranged spaced from one another in V-shaped relation, said manifold arrangement comprising: first and second resonance chambers connected to one another by a straight connecting pipe at opposite ends of the straight connecting pipe, the first and second resonance chambers and the straight connecting pipe cooperating to form a H-shaped air intake manifold, a suction connection fitting extending perpendicularly to the connecting pipe and including a single air jupply opening into the connecting pipe, respective individual first suction pipes leading from the first resonance chamber to respective cylinders of a first group, and respective individual second suction pipes leading from the second chamber to respective cylinders of a second group, said first and second suction pipes extending parallel to the connecting pipe and outwardly of the respective resonance chambers at their sides opposite the connecting pipe.
Claim 2
Dependent Claim
155 words
An air intake manifold arrangement for an internal combustion engine of the type having two similar groups of cylinders arranged spaced from one another in V-shaped relation, said manifold arrangement comprising: first and second resonance chambers connected to one another by a straight connecting pipe at opposite ends of the straight connecting pipe, the first and second resonance chambers and the straight connecting pipe cooperating to form a H-shaped air intake manifold, a suction connection fitting extending perpendicularly to the connecting pipe and including a single air jupply opening into the connecting pipe, respective individual first suction pipes leading from the first resonance chamber to respective cylinders of a first group, and respective individual second suction pipes leading from the second chamber to respective cylinders of a second group, said first and second suction pipes extending parallel to the connecting pipe and outwardly of the respective resonance chambers at their sides opposite the connecting pipe.
Claim 3
Dependent Claim
36 words
An arrangement according to claim 1, wherein said first resonance chamber exhibits a smaller distance S1 to the middle of the suction connection fitting and has a larger volume V1 than does the second resonance chamber.
Claim 4
Dependent Claim
38 words
An arrangement according to claim 2, wherein the volumes V1 and V2 and the distance S1 and S2 from the middle of the suction connection fitting of the first and second resonance chambers exhibit the following relationship: (V1/V2)=(S2/S1).
Claim 5
Dependent Claim
33 words
An arrangement according to claim 2, wherein the total volume V1 and V2 of the first and second resonance chamber is approximately equal to the entire volume of all the cylinder working chambers.
Claim 6
Dependent Claim
165 words
A multi-cylinder V-shaped combustion engine comprising: a first group of cylinders on one V-bank having respective first air inlet means, a second group of cylinders on an opposite V-bank having respective second air inlet means, first and second resonance chambers connected to one another by a straight connecting pipe at opposite ends of the straight connecting pipe, the first and second resonance chambers and the straight connecting pipe cooperating to form an H-shaped air intake manifold, a suction connection fitting extending perpendicularly to the straight connecting pipe and including a single air supply opening into the connecting pipe, respective individual first suction pipes leading from the first resonance chamber to respective ones of said second air inlet means, and respective individual second suction pipes leading from the second resonance chamber to respective ones of said second air inlet means, said first and second suction pipes extending parallel to the connecting pipe and outwardly of the respective resonance chambers at their sides opposite the connecting pipe.
Claim 7
Dependent Claim
165 words
A multi-cylinder V-shaped combustion engine comprising: a first group of cylinders on one V-bank having respective first air inlet means, a second group of cylinders on an opposite V-bank having respective second air inlet means, first and second resonance chambers connected to one another by a straight connecting pipe at opposite ends of the straight connecting pipe, the first and second resonance chambers and the straight connecting pipe cooperating to form an H-shaped air intake manifold, a suction connection fitting extending perpendicularly to the straight connecting pipe and including a single air supply opening into the connecting pipe, respective individual first suction pipes leading from the first resonance chamber to respective ones of said second air inlet means, and respective individual second suction pipes leading from the second resonance chamber to respective ones of said second air inlet means, said first and second suction pipes extending parallel to the connecting pipe and outwardly of the respective resonance chambers at their sides opposite the connecting pipe.
Claim 8
Dependent Claim
34 words
An engine according to claim 1, wherein the single suction pipes leading from the resonance chambers to the cylinder air inlet means are slightly conically narrowed in the direction toward the air inlet means.
Claim 9
Dependent Claim
22 words
An engine according to claim 1, wherein said cylinders are arranged in one of a boxer or V-construction into two similar groups.
Claim 10
Dependent Claim
36 words
An engine according to claim 1, wherein said first resonance chamber exhibits a smaller distance S1 to the middle of the suction connection fitting and has a larger volume V1 than does the second resonance chamber.
Claim 11
Dependent Claim
33 words
An engine according to claim 8, wherein the total volume V1 and V2 of the first and second resonance chamber is approximately equal to the entire volume of all the cylinder working chambers.
Claim 12
Dependent Claim
38 words
An engine according to claim 8, wherein the volumes V1 and V2 and the distance S1 and S2 from the middle of the suction connection fitting of the first and second resonance chambers exhibit the following relationship: (V1/V2)=(S2/S1).
Claim 13
Dependent Claim
33 words
An engine according to claim 10, wherein the total volume V1 and V2 of the first and second resonance chamber is approximately equal to the entire volume of all the cylinder working chambers.
Claim 14
Dependent Claim
34 words
An engine according to claim 10, wherein the single suction pipes leading from the resonance chambers to the cylinder air inlet means are slightly conically narrowed in the direction toward the air inlet means.
Claim 15
Dependent Claim
22 words
An engine according to claim 10 wherein, said cylinders are arranged in one of a boxer or V-construction into two similar groups.
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) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |