US6185938B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbo-charged internal combustion engine
Assignee: Volvo AB
•
Filing: 1997-12-16
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Granted: 2001-02-13
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Expires: 2017-12-16
Abstract
Abstract A five-cylinder turbocharged internal combustion engine has an exhaust manifold ( 6-10 ) connected to a turbine housing ( 13 ). Four exhaust manifold conduits ( 7, 8, 9, 10 ) lead in pairs to the inlets ( 11, 12 ) of a twin-entry turbine ( 14 ). The fifth exhaust manifold conduit ( 6 ) is drawn past the turbine housing and opens into an exhaust pipe ( 18 ) on the downstream side of the turbine housing.
Inventors
- 👤 Lennarth Zander
- 👤 Lars Nilsson
- 👤 Patrick Olsson
- 👤 Fredrik Wemmert
- 👤 Johan Tollmen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:40
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9445; B01D53/9454; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/24; F01N3/28; F02; F02B; F02B37/00; F02B37/02; F02B37/025; F02B37/12; F02B37/18; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/182; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
Five-cylinder turbo-charged internal combustion engine with an exhaust manifold connected to a turbine housing, said manifold comprising five exhaust manifold conduits, of which four are combined in pairs and open into an inlet into the turbine housing, characterized in that a fifth exhaust manifold conduit ( 6 ) is drawn past the turbine housing ( 13 ) and opens into an exhaust pipe ( 18 ) on the downstream side of the turbine housing.
Claim 2
Dependent Claim
74 words
Five-cylinder turbo-charged internal combustion engine with an exhaust manifold connected to a turbine housing, said manifold comprising five exhaust manifold conduits, of which four are combined in pairs and open into an inlet into the turbine housing, characterized in that a fifth exhaust manifold conduit ( 6 ) is drawn past the turbine housing ( 13 ) and opens into an exhaust pipe ( 18 ) on the downstream side of the turbine housing.
Claim 3
Dependent Claim
61 words
Internal combustion engine according to claim 1 , characterized in that the turbine housing ( 13 ) has a separate inlet ( 11 , 12 ) for each of two separate inlet channels to the interior of the turbine housing and that one pair of exhaust manifold conduits ( 7 , 10 and 8 , 9 ) opens into each inlet.
Claim 4
Dependent Claim
71 words
Internal combustion engine according to claim 1 , characterized in that said exhaust pipe ( 18 ) on the downstream side of the turbine housing ( 13 ) contains a catalytic exhaust cleaner ( 19 ) and that the fifth exhaust manifold conduit ( 6 ) opens into said said exhaust pipe ( 18 ) upstream of the catalytic exhaust cleaner and contains an additional catalytic exhaust cleaner ( 20 ).
Claim 5
Dependent Claim
121 words
Internal combustion engine according to claim 1 , characterized in that the fifth exhaust manifold conduit ( 6 ) is drawn from one ( 1 ) of the outer cylinder s of the engine, that the exhaust manifold conduit ( 8 ) from the middle cylinder ( 3 ) of the engine is combined with the exhaust manifold conduit ( 9 ) from one ( 4 ) of the cylinders adjacent to the middle cylinder and that the exhaust manifold conduit ( 10 ) from the other ( 5 ) of the outer cylinders of the engine is combined with the exhaust manifold conduit ( 7 ) from the other ( 2 ) of the cylinders adjacent to the middle cylinder.
Claim 6
Dependent Claim
69 words
Internal combustion engine according to claim 2 , characterized in that said exhaust pipe ( 18 ) on the downstream side of the turbine housing ( 13 ) contains a catalytic exhaust cleaner ( 19 ) and that the fifth exhaust: manifold conduit ( 6 ) opens into said exhaust pipe ( 18 ) upstream of the exhaust cleaner and contains an additional catalytic exhaust cleaner ( 20 ).
Claim 7
Dependent Claim
120 words
Internal combustion engine according to claim 2 , characterized in that the fifth exhaust manifold conduit ( 6 ) is drawn from one ( 1 ) of the outer cylinders of the engine, that the exhaust manifold conduit ( 8 ) from the middle cylinder ( 3 ) of the engine is combined with the exhaust manifold conduit ( 9 ) from one ( 4 ) of the cylinders adjacent to the middle cylinder and that the exhaust manifold conduit ( 10 ) from the other ( 5 ) of the outer cylinders of the engine is combined with the exhaust manifold conduit ( 7 ) from the other ( 2 ) of the cylinders adjacent to the middle cylinder.
Claim 8
Dependent Claim
120 words
Internal combustion engine according to claim 3 , characterized in that the fifth exhaust manifold conduit ( 6 ) is drawn from one ( 1 ) of the outer cylinders of the engine, that the exhaust manifold conduit ( 8 ) from the middle cylinder ( 3 ) of the engine is combined with the exhaust manifold conduit ( 9 ) from one ( 4 ) of the cylinders adjacent to the middle cylinder and that the exhaust manifold conduit ( 10 ) from the other ( 5 ) of the outer cylinders of the engine is combined with the exhaust manifold conduit ( 7 ) from the other ( 2 ) of the cylinders adjacent to the middle cylinder.
Claim 9
Dependent Claim
120 words
Internal combustion engine according to claim 5 , characterized in that the fifth exhaust manifold conduit ( 6 ) is drawn from one ( 1 ) of the outer cylinders of the engine, that the exhaust manifold conduit ( 8 ) from the middle cylinder ( 3 ) of the engine is combined with the exhaust manifold conduit ( 9 ) from one ( 4 ) of the cylinders adjacent to the middle cylinder and that the exhaust manifold conduit ( 10 ) from the other ( 5 ) of the outer cylinders of the engine is combined with the exhaust manifold conduit ( 7 ) from the other ( 2 ) of the cylinders adjacent to the middle cylinder.
References Cited (Backward Citations)
US3469393A
Cited
US4207742A
Cited
US4270356A
Cited
US4249382A
Cited
FR2483515A1
Cited
JPS5793615A
Cited
US4406126A
Cited
DE3312093A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-02-13 | 2004-08-14 | 2005-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-13 | 2008-08-14 | 2009-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-13 | 2012-08-14 | 2013-02-13 | $7700.00 | Window Closed / Lapsed |