US6354083B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial two-stroke motors
Assignee: Shuttleworth Axial Motor Co Ltd
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Filing: 1999-08-19
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Granted: 2002-03-12
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Expires: 2019-08-19
Abstract
Abstract The present invention relates to an axial two-stroke motor ( 100 ) which includes an integral turbocharger ( 308 ). The motor ( 100 ) includes more than two cylinders ( 101-105 ) arranged in a substantially circular arrangement about a longitudinal axis ( 305 ) of an engine block ( 106 ). A chamber is disposed in the engine block ( 106 ) which forms an exhaust duct ( 307 ) and an intake duct ( 306 ). The turbocharger ( 308 ) is disposed in the chamber so that it is substantially located within the engine block ( 106 ). An exhaust turbine ( 107 ) of the turbocharger ( 308 ) resides substantially in the exhaust duct ( 307 ) and a compressor turbine ( 200 ) resides substantially in the intake duct ( 306 ).
Inventors
- 👤 Richard Jack Shuttleworth
- 👤 Jonathon Barton Rainey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:22
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F01; F01D; F01D25/00; F01D25/08; F01D25/12; F01D25/125; F01D25/24; F02B; F02B37/00; F02B37/04; F02B67/00; F02B67/10; F02B75/00; F02B75/26; F02B75/02; F02B2075/022; F02B2075/025; F05; F05D; F05D2230/00; F05D2230/50; F05D2230/53; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
An axial two-stroke motor including: an engine block with more than two cylinders spaced substantially evenly about a central axis of the block, each cylinder having one or more exhaust ports, a chamber within the block, the chamber forming an exhaust duct and an intake duct, and a turbocharger including an exhaust turbine and compression turbine, wherein the turbocharger is disposed substantially within the chamber such that the compression turbine is positioned substantially within the intake duct and the exhaust turbine is positioned substantially within the exhaust duct, the exhaust turbine being located such that exhaust from each exhaust port can drive the exhaust turbine.
Claim 2
Dependent Claim
105 words
An axial two-stroke motor including: an engine block with more than two cylinders spaced substantially evenly about a central axis of the block, each cylinder having one or more exhaust ports, a chamber within the block, the chamber forming an exhaust duct and an intake duct, and a turbocharger including an exhaust turbine and compression turbine, wherein the turbocharger is disposed substantially within the chamber such that the compression turbine is positioned substantially within the intake duct and the exhaust turbine is positioned substantially within the exhaust duct, the exhaust turbine being located such that exhaust from each exhaust port can drive the exhaust turbine.
Claim 3
Dependent Claim
28 words
An axial two-stroke motor according to claim 1 wherein the turbocharger includes a sub-assembly, the sub-assembly being mounted on inwardly protruding machined circular surfaces located within the chamber.
Claim 4
Dependent Claim
38 words
An axial two-stroke motor according to claim 1 wherein the turbocharger further includes a stator which resides substantially within the exhaust duct such that exhaust from each exhaust port can pass to the exhaust turbine via the stator.
Claim 5
Dependent Claim
24 words
An axial two-stroke motor according to claim 1 wherein the exhaust duct formed by the chamber extends at least partially outside the engine block.
Claim 6
Dependent Claim
27 words
An axial two-stroke motor according to claim 3 wherein the stator is drilled to enable the stator to carry coolant or lubricant to end-bearings of the turbine.
Claim 7
Dependent Claim
32 words
An axial two-stroke motor according to claim 2 wherein the surfaces form, in combination with the block and turbocharger sub-assembly, a coolant jacket in which coolant is circulated to cool the turbocharger.
Claim 8
Dependent Claim
31 words
An axial two-stroke motor according to claim 1 further including an exhaust duct which extends outside the block and a coolant jacket is provided to cool an outboard exhaust end bearing.
Claim 9
Dependent Claim
20 words
An axial two-stroke motor according to claim 1 wherein turbine end bearings are mounted inboard or outboard of the turbines.
Claim 10
Independent Claim
92 words
A method for transferring a combustible charge to cylinders disposed in an engine block of an axial motor including the steps of: directing exhaust gases from the cylinders onto an exhaust turbine of a turbocharger located substantially within the engine block, rotating the exhaust turbine in response to the exhaust gases and thereby rotating a compressor turbine also within the engine block, drawing air through an intake duct of the block by way of the rotating compressor turbine, and directing the air into the one or more cylinders of the engine block.
Claim 11
Independent Claim
92 words
A method for transferring a combustible charge to cylinders disposed in an engine block of an axial motor including the steps of: directing exhaust gases from the cylinders onto an exhaust turbine of a turbocharger located substantially within the engine block, rotating the exhaust turbine in response to the exhaust gases and thereby rotating a compressor turbine also within the engine block, drawing air through an intake duct of the block by way of the rotating compressor turbine, and directing the air into the one or more cylinders of the engine block.
References Cited (Backward Citations)
US2189106A
Cited
US4576126A
Cited
US4864979A
Cited
US5309886A
Cited
US5711154A
Cited
US5878703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-03-11 | 2005-09-10 | 2006-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-03-11 | 2009-09-10 | 2010-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-03-11 | 2013-09-10 | 2014-03-12 | $7700.00 | Window Closed / Lapsed |