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US 2010/0167607 A1Published application
Personal Watercraft
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsAtsufumi Ozaki, Yasuo Okada, Akio Miguchi, Hiroshi Yagii, Toshio Araki
Life of this patent
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Abstract
A personal watercraft comprises an engine which is mounted in a body of the watercraft and is equipped with an open-loop water cooling system; a coolant passage in which water for cooling the engine flows; a water flow generator configured to operate in association with the engine to generate a water flow in the coolant passage; and a valve unit configured to restrict a flow of the water in the coolant passage.
Claims14
A personal watercraft comprising:
- an engine which is mounted in a body of the watercraft and is equipped with an open-loop water cooling system;
- a coolant passage in which water for cooling the engine flows;
- a water flow generator configured to operate in association with the engine to generate a water flow in the coolant passage;
- and
- a valve unit configured to restrict a flow of the water in the coolant passage.
2 more elements
A personal watercraft comprising:
- an engine which is mounted in a body of the watercraft and is equipped with an open-loop water cooling system;
- a coolant passage in which water for cooling the engine flows;
- and
- a water flow generator configured to operate in association with the engine to generate a water flow in the coolant passage;
- wherein the coolant passage includes:
- an oil cooler passage in which the water exchanges heat with an engine oil sent to an oil cooler configured to control a temperature of the engine oil;
- an inlet passage coupled to an inlet port of the oil cooler passage;
- an outlet passage coupled to an outlet port of the oil cooler passage;
- and
- a bypass passage configured to directly couple the inlet passage to the outlet passage.
7 more elements
A personal watercraft comprising:
- an engine which is mounted in a body of the watercraft and is equipped with an open-loop water cooling system;
- a coolant passage in which water for cooling the engine flows;
- and
- a water flow generator configured to operate in association with the engine to generate a water flow in the coolant passage;
- wherein the coolant passage includes an upstream passage located upstream of the engine in a water flow direction and a downstream passage located downstream of the engine;
- and
- wherein the downstream passage is coupled to an oil cooler passage in which the water exchanges heat with an engine oil sent to an oil cooler configured to control a temperature of the engine oil.
4 more elements
Dependencies are inferred from the claim text.