US6659089B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbocharger arrangement structure for personal watercraft
Assignee: Honda Motor Co Ltd
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Filing: 2002-06-19
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Granted: 2003-12-09
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Expires: 2022-06-19
Abstract
Abstract To augment the durability of a turbocharger. A hull and a deck of a personal watercraft are formed watertight and an opening of the deck is closed with a seat to form a body internal space. An intake duct for introducing atmospheric air from outside the body is provided in the space. An engine and a turbocharger connected to an exhaust manifold of the engine are provided in the space and the turbocharger is disposed higher than a body internal opening of the intake duct. A water jacket is formed in a casing of a turbine portion of the turbocharger and an oil jacket is formed in a bearing casing of the turbocharger, and cooling water is supplied to the water jacket and cooling oil is supplied to the oil jacket. The cooling water to the water jacket is supplied by a different turbocharger cooling water passage independent of any other cooling water passage.
Inventors
- 👤 Yoshitsugu Gokan
- 👤 Kazunori Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:33
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/004; B; B63; B63B; B63B34/00; B63B34/10; B63H; B63H21/00; B63H21/24; B63H21/38; B63H21/383; B63H21/386; F01P; F01P3/00; F01P3/12; F02; F02B; F02B39/00; F02B39/005; F02B39/14; F02B61/00; F02B61/04; F02B61/045; F02B67/00; F02B67/10; B63H21/12; B63H21/14; F01N2590/00; F01N2590/02; F01N2590/022; F01P2060/00; F01P2060/12
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
88 words
A turbocharger arrangement structure for a personal watercraft comprising: a hull and a deck forming a watertight personal watercraft; an opening formed in said deck; a lid member for closing said opening to form a body internal space; an intake duct for introducing atmospheric air from outside said body is provided in said space; and an engine and a turbocharger connected to an exhaust manifold of said engine are provided in said space; wherein said turbocharger is disposed higher than a body internal opening of said intake duct.
Claim 2
Dependent Claim
88 words
A turbocharger arrangement structure for a personal watercraft comprising: a hull and a deck forming a watertight personal watercraft; an opening formed in said deck; a lid member for closing said opening to form a body internal space; an intake duct for introducing atmospheric air from outside said body is provided in said space; and an engine and a turbocharger connected to an exhaust manifold of said engine are provided in said space; wherein said turbocharger is disposed higher than a body internal opening of said intake duct.
Claim 3
Dependent Claim
60 words
The turbocharger arrangement structure for a personal watercraft according to claim 1 , wherein a water jacket is formed in a casing of a turbine portion of said turbocharger and an oil jacket is formed in a bearing casing of said turbocharger, and cooling water is supplied to said water jacket and cooling oil is supplied to said oil jacket.
Claim 4
Dependent Claim
37 words
The turbocharger arrangement structure for a personal watercraft according to claim 2 , wherein the cooling water to said water jacket is supplied by a distinct turbocharger cooling water passage independent of any other cooling water passage.
Claim 5
Dependent Claim
30 words
The turbocharger arrangement structure for a personal watercraft according to claim 2 , wherein cooling water is supplied to the turbocharger directly without an intervention from any other cooling devices.
Claim 6
Dependent Claim
31 words
The turbocharger arrangement structure for a personal watercraft according to claim 2 , wherein cooling water is connected to a water jacket of an exhaust pipe for cooling the exhaust pipe.
Claim 7
Dependent Claim
43 words
The turbocharger arrangement structure for a personal watercraft according to claim 1 , wherein mounting said turbocharger at a higher position relative to the internal opening of the intake duct prevents the turbocharger from being exposed to water droplet in the atmospheric air.
Claim 8
Dependent Claim
24 words
The turbocharger arrangement structure for a personal watercraft according to claim 1 , wherein said turbocharger is positioned to the rear of the engine.
Claim 9
Dependent Claim
110 words
A turbocharger arrangement structure for a personal watercraft comprising: a hull and a deck forming a watertight personal watercraft; an opening formed in said deck; a lid member for closing said opening to form a body internal space; an intake duct for introducing atmospheric air from outside said body is provided in said space; and an engine operatively mounted within said space for propelling said watercraft; an exhaust manifold for said engine; and a turbocharger operatively connected to the exhaust manifold of said engine, said turbocharger being mounted to a rear portion of the engine; wherein said turbocharger is disposed higher than a body internal opening of said intake duct.
Claim 10
Dependent Claim
110 words
A turbocharger arrangement structure for a personal watercraft comprising: a hull and a deck forming a watertight personal watercraft; an opening formed in said deck; a lid member for closing said opening to form a body internal space; an intake duct for introducing atmospheric air from outside said body is provided in said space; and an engine operatively mounted within said space for propelling said watercraft; an exhaust manifold for said engine; and a turbocharger operatively connected to the exhaust manifold of said engine, said turbocharger being mounted to a rear portion of the engine; wherein said turbocharger is disposed higher than a body internal opening of said intake duct.
Claim 11
Dependent Claim
60 words
The turbocharger arrangement structure for a personal watercraft according to claim 8 , wherein a water jacket is formed in a casing of a turbine portion of said turbocharger and an oil jacket is formed in a bearing casing of said turbocharger, and cooling water is supplied to said water jacket and cooling oil is supplied to said oil jacket.
Claim 12
Dependent Claim
37 words
The turbocharger arrangement structure for a personal watercraft according to claim 9 , wherein the cooling water to said water jacket is supplied by a distinct turbocharger cooling water passage independent of any other cooling water passage.
Claim 13
Dependent Claim
30 words
The turbocharger arrangement structure for a personal watercraft according to claim 9 , wherein cooling water is supplied to the turbocharger directly without an intervention from any other cooling devices.
Claim 14
Dependent Claim
31 words
The turbocharger arrangement structure for a personal watercraft according to claim 9 , wherein cooling water is connected to a water jacket of an exhaust pipe for cooling the exhaust pipe.
Claim 15
Dependent Claim
43 words
The turbocharger arrangement structure for a personal watercraft according to claim 8 , wherein mounting said turbocharger at a higher position relative to the internal opening of the intake duct prevents the turbocharger from being exposed to water droplet in the atmospheric air.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-12-08 | 2007-06-09 | 2007-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-08 | 2011-06-09 | 2011-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-08 | 2015-06-09 | 2015-12-09 | $7700.00 | Window Closed / Lapsed |