A snow vehicle includes an engine, a track belt arranged on a rear side of the engine, and a cooling water path for cooling the engine, in which the engine includes a cooling water inlet portion and a cooling water outlet portion provided on a front surface side of the engine and connected with the
A snow vehicle includes an engine, a track belt arranged on a rear side of the engine, and a cooling water path for cooling the engine, in which the engine includes a cooling water inlet portion and a cooling water outlet portion provided on a front surface side of the engine and connected with the cooling water path. The snow vehicle is capable of improving the turning ability of the vehicle, while simplifying a cooling water path and reducing the size of the structure for cooling the engine.
대표청구항▼
What is claimed is: 1. A snow vehicle comprising: an engine including a cooling water jacket, a cooling water inlet portion, and a cooling water outlet portion; a track belt arranged on a rear side of the engine, the track belt being wound around a front axle arranged to receive a drive force from
What is claimed is: 1. A snow vehicle comprising: an engine including a cooling water jacket, a cooling water inlet portion, and a cooling water outlet portion; a track belt arranged on a rear side of the engine, the track belt being wound around a front axle arranged to receive a drive force from the engine; a shaft arranged to transmit the drive force from the engine to the front axle, the shaft arranged behind the engine and above the front axle; and a cooling water path arranged to cool the engine, the cooling water path including a cooler arranged to cool cooling water in the cooling water path, the cooler including a first portion interposed between the engine and the front axle and a second portion disposed above the front axle and interposed between the shaft and the front axle; wherein the engine includes a front surface with respect to a forward running direction of the vehicle that extends substantially perpendicular to the forward running direction; and the cooling water inlet portion and the cooling water outlet portion are directly connected to the front surface of the engine, and are connected to the cooling water jacket and the cooling water path on a front surface side located in front of the front surface of the engine with respect to the forward running direction of the vehicle. 2. The snow vehicle according to claim 1, further including a thermostat connected to the cooling water path and arranged to control a path of the cooling water according to a temperature of the cooling water, wherein the cooling water path includes a bypass path in which the cooling water is controlled to pass therethrough by the thermostat when the water temperature of the cooling water is lower than a predetermined temperature and does not pass through the cooler, and the bypass path of the cooling water path is arranged on the front surface side of the engine. 3. The snow vehicle according to claim 1, wherein the engine further includes a cylinder and an intake path and an exhaust path connected to the cylinder, wherein the intake path is arranged on the front surface side of the engine and the exhaust path is arranged on a rear surface side of the engine. 4. The snow vehicle according to claim 1, wherein the engine further includes a plurality of cylinders, wherein the cooling water inlet portion of the engine is arranged such that the cooling water flows between axis lines of predetermined cylinders in a direction of alignment of the plurality of cylinders. 5. The snow vehicle according to claim 1, further including a reservoir tank connected to the cooling water path, the engine further includes a cylinder and an engine path connected to the cylinder and arranged on the front surface side of the engine, wherein the reservoir tank is arranged on an upper side of the cooling water path, and the cooling water outlet portion is arranged on a lower side of the cooling water path. 6. The snow vehicle according to claim 5, wherein the engine path is an intake path. 7. The snow vehicle according to claim 1, further comprising a radiator connected to the cooling water path, wherein the radiator is arranged on the front surface side of the engine. 8. The snow vehicle according to claim 1, wherein the engine further includes a water pump arranged to supply the cooling water to the cooling water path, wherein the water pump is arranged on the front surface side of the engine. 9. The snow vehicle according to claim 8, wherein a portion of the cooling water path connecting the water pump and the cooling water inlet portion of the engine is arranged on the front surface side of the engine. 10. The snow vehicle according to claim 8, wherein the water pump is arranged on an outer side of the engine in a vehicle width direction. 11. The snow vehicle according to claim 8, wherein the engine further includes a crankshaft, and wherein the water pump is transmitted with a drive force from the crankshaft. 12. The snow vehicle according to claim 1, further including an oil cooler connected to the cooling water path, wherein the oil cooler is arranged on the front surface side of the engine. 13. The snow vehicle according to claim 1, wherein the engine further includes a cylinder and the cooling water jacket is arranged at least at an upper portion and a side portion of the cylinder, wherein the cooling water outlet portion of the engine is provided on an upper portion of the cooling water jacket, cooling water supplied from the cooling water inlet portion arranged on the front surface of the engine to an inner portion of the engine is passed from a lower portion to the upper portion of the cooling water jacket and discharged to the cooling water path by way of the cooling water outlet portion, and the cooling water passing from the lower portion to the upper portion of the cooling water jacket is restricted such that an amount of the cooling water passing through a rear portion of the cooling water jacket becomes larger than an amount of the cooling water passing through a front portion of the cooling water jacket. 14. The snow vehicle according to claim 13, wherein the front portion and the rear portion of the cooling water jacket are respectively provided with a first passing hole and a second passing hole connecting the upper portion and the lower portion of the cooling water jacket, and wherein the second passing hole has an area larger than that of the first passing hole. 15. The snow vehicle according to claim 1, wherein a top of the engine is arranged to be inclined toward a rear side of the vehicle. 16. The snow mobile according to claim 1, wherein the engine is a four stroke engine.
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이 특허에 인용된 특허 (8)
Creed Brian T. (Wheaton IL) Bradshaw Cyril E. (Wheaton IL), Controlling engine coolant flow and valve assembly therefor.
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