Pump drive structure of water-cooled internal combustion engine
First Claim
1. A pump drive structure for a water-cooled internal combustion engine in which a balancer shaft is arranged in parallel with a crankshaft at a position where crank webs of the crankshaft and balancer weights are overlapped in the axial view comprising:
- an oil pump drive shaft of an oil pump, said oil pump drive shaft being connected coaxially at one end of the balancer shaft, and a water pump drive shaft of a water pump being connected coaxially with the other end of the balancer shaft.
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Accused Products
Abstract
To provide a pump drive structure for a water-cooled internal combustion engine in which the number of revolving shafts arranged in parallel in an internal combustion engine is reduced and a power transmission mechanism is eliminated. Thus, the internal combustion engine is downsized. The pump drive structure of a water-cooled internal combustion engine is provided in which a balancer shaft is arranged in parallel with a crankshaft at a position where crank webs of the crankshaft and balancer weights are overlapped in the axial direction. An oil pump drive shaft of an oil pump is connected coaxially at one end of the balancer shaft, and a water pump drive shaft of a water pump is connected coaxially with the other end of the balancer shaft.
20 Citations
20 Claims
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1. A pump drive structure for a water-cooled internal combustion engine in which a balancer shaft is arranged in parallel with a crankshaft at a position where crank webs of the crankshaft and balancer weights are overlapped in the axial view comprising:
an oil pump drive shaft of an oil pump, said oil pump drive shaft being connected coaxially at one end of the balancer shaft, and a water pump drive shaft of a water pump being connected coaxially with the other end of the balancer shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A pump drive structure for a water-cooled internal combustion engine comprising:
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a crankshaft including crank webs; a balancer shaft including balancer weights, said balancer shaft being arranged substantially in parallel with the crankshaft at a position where the crank webs of the crankshaft and balancer weights are overlapped in the axial view; an oil pump, said oil pump including a drive shaft being connected coaxially at one end of the balancer shaft; and a water pump, said water pump including a drive shaft being connected coaxially with the other end of the balancer shaft. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification