Water-cooled engine
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsKatsunori Takahashi, Eiko Shiozaki, Tohru Ohshita
Life of this patent
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Abstract
A water pump is provided on one lower side of a crankcase and connected to a water jacket on the rear surface of the cylinder block through a water hose. The outlet section of the water jacket is connected to the thermostat case near this connecting section. The thermostat valve is a bottom bypass type thermostat valve, directly attached to the rear surface of the cylinder head. The bypass hose is connected to the water pump and passes along the side of a starter motor and passes between the starter motor and a speed sensor. The arrangement of the bypass hose in a bottom bypass type thermostat valve effectively utilizes space.
Claims12
A water-cooled engine comprising:
- a crankcase;
- a cylinder block attached to the crankcase;
- a starter motor arranged on a rear surface of the crankcase;
- and
- a water pump arranged on the crankcase,
- wherein water piping connected between a rear surface of the cylinder block and the water pump is laid beside the starter motor.
A water-cooled engine comprising:
- a crankcase;
- a cylinder block attached to said crankcase, said cylinder block having a block water jacket therein, said cylinder block having a block opening therein in communication with said block water jacket;
- a cylinder head attached to said cylinder block, said cylinder head having a head water jacket therein, said cylinder head having a head opening therein in communication with said head water jacket, said head water jacket being in communication with said block water jacket;
- a starter motor attached to a rear surface of said crankcase;
- a water pump attached to said cylinder block, said water pump including a first port and a second port;
- a first water pipe connected between said first port of said water pump and said block opening;
- and
- a second water pipe connected between said second port of said water pump and said head opening, said second water pipe passing along one side of said starter motor and beside a rear end of said starter motor,
- wherein neither of said first and second water pipes passes over an upper surface of said starter motor.
Dependencies are inferred from the claim text.