Water-cooled two-cycle engine
AssigneeSuzuki Motor Corporation
InventorsKatsunori Kyuma, Shintaro Yagi
Life of this patent
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Abstract
A cooling structure of a water-cooled two-cycle parallel multicylinder engine includes: an exhaust port in a cylinder block; an air intake port disposed in a crankcase below the exhaust port; a water pump disposed in the crankcase in an opposite side of the exhaust port; a first cooling water passage introducing cooling water discharged from the water pump to a cooling water jacket of a cylinder head; and a second cooling water passage introducing a part of the cooling water discharged from the water pump to a cooling water jacket below the exhaust port, the second cooling water passage being provided in the crankcase.
Claims5
A water-cooled two-cycle engine mounted on a vehicle, said two-cycle engine comprising:
- two ignition plugs in one cylinder head, said two ignition plugs being disposed forward and backward along a direction that is parallel to a vehicle traveling direction, wherein one of said two ignition plugs is disposed at a central portion of a combustion chamber formed in the cylinder head, and the other of said ignition plugs is disposed at a scavenging port side of the cylinder head, the scavenging port side being opposed to an exhaust port side along which an exhaust port is formed in a first cylinder block;
- and
- a guide rib provided in a cooling water jacket formed in the cylinder head, said guide rib regulating a flow of cooling water so that the cooling water flows from the exhaust port side of the cylinder head to the scavenging port side.
Dependencies are inferred from the claim text.