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CN-117508415-B - All-terrain vehicle

CN117508415BCN 117508415 BCN117508415 BCN 117508415BCN-117508415-B

Abstract

The invention discloses an all-terrain vehicle which comprises a vehicle frame, a vehicle body covering part, a walking assembly and a power assembly, wherein the power assembly comprises an engine, the engine comprises a cylinder body, a cooling water jacket and a water jacket partition plate, the cooling water jacket is at least partially arranged in the cylinder body, the water jacket partition plate is provided with a first waist-shaped hole and a second waist-shaped hole, the engine further comprises a crankshaft, the crankshaft basically extends along a preset direction, the projection area of the first waist-shaped hole on the projection plane along the preset direction is S1, the projection area of the second waist-shaped hole on the projection plane along the preset direction is S2, and the ratio of the projection area S1 of the first waist-shaped hole to the projection area S2 of the second waist-shaped hole is more than or equal to 2.4 and less than or equal to 3.6. The flow field of the cooling liquid in the cooling water jacket is optimized through a simple structure, the structure of the cooling water jacket is simplified, the problem of uneven water flow distribution in the cooling water jacket is avoided, and the cooling effect on the engine cylinder block is improved.

Inventors

  • LOU FENG
  • LI HENG
  • YANG CHEN
  • LI DONGYUE

Assignees

  • 浙江春风动力股份有限公司

Dates

Publication Date
20260512
Application Date
20220729

Claims (10)

  1. 1. An all-terrain vehicle comprising: A frame; A body panel disposed at least partially on the frame; the walking assembly is used for supporting the all-terrain vehicle; A power assembly at least partially disposed on the frame, the power assembly comprising an engine; It is characterized in that the method comprises the steps of, The engine comprises a cylinder body, a cooling water jacket, a water jacket partition plate, a crankshaft and a first waist-shaped hole and a second waist-shaped hole, wherein the cooling water jacket is at least partially arranged in the cylinder body, the water jacket partition plate is at least partially arranged in the cooling water jacket, the crankshaft basically extends along a preset direction, the projection area of the first waist-shaped hole on the projection plane along the preset direction is S1, the projection area of the second waist-shaped hole on the projection plane along the preset direction is S2, and the ratio of the projection area S1 of the first waist-shaped hole to the projection area S2 of the second waist-shaped hole is more than or equal to 2.4 and less than or equal to 3.6.
  2. 2. The ATV of claim 1, wherein the ATV comprises a frame, The cylinder block is formed with a cylinder bore therethrough, and the cooling water jacket is disposed around the cylinder bore.
  3. 3. The ATV of claim 2, wherein the ATV comprises a frame, The height of the water jacket partition plate extending along the axial direction of the cylinder hole is H1, the height of the cooling water jacket extending along the axial direction of the cylinder hole is H2, and the ratio of the height H1 of the water jacket partition plate to the height H2 of the cooling water jacket is more than or equal to 0.68 and less than or equal to 1.
  4. 4. The ATV of claim 3, wherein the ATV comprises a plurality of wheels, The ratio of the height H1 of the water jacket partition plate to the height H2 of the cooling water jacket is more than or equal to 0.76 and less than or equal to 0.94.
  5. 5. The ATV of claim 2, wherein the ATV comprises a frame, The length that first waist type hole along the axis direction of cylinder hole extends is L1, the length that second waist type hole along the axis direction of cylinder hole extends is L2, the ratio of length L1 of first waist type hole to length L2 of second waist type hole is more than or equal to 2.4 and less than or equal to 3.6.
  6. 6. The ATV of claim 5, wherein the vehicle is a car, The ratio of the length L1 of the first waist-shaped hole to the length L2 of the second waist-shaped hole is more than or equal to 2.7 and less than or equal to 3.3.
  7. 7. The ATV of claim 2, wherein the ATV comprises a frame, The water jacket partition extends substantially in the axial direction of the cylinder bore.
  8. 8. The ATV of claim 1, wherein the ATV comprises a frame, The projection area of the water jacket partition plate on the projection plane along the preset direction is S3, and the ratio of the projection area S1 of the first waist-shaped hole to the projection area S3 of the water jacket partition plate is more than or equal to 0.25 and less than or equal to 0.39.
  9. 9. The ATV of claim 8, wherein the ATV comprises a frame, The ratio of the projection area S1 of the first waist-shaped hole to the projection area S3 of the water jacket partition plate is more than or equal to 0.29 and less than or equal to 0.36.
  10. 10. The ATV of claim 1, wherein the ATV comprises a frame, The cooling water jacket is provided with a fixing groove, and the water jacket partition plate is at least partially arranged in the fixing groove.

Description

All-terrain vehicle Technical Field The invention relates to the field of vehicles, in particular to an all-terrain vehicle. Background All-terrain vehicles are also called as all-terrain four-wheel off-road locomotives, the vehicles are simple and practical, the off-road performance is good, and the appearance is general without a awning. The ATVs are driven by an engine that provides a source of power for the ATVs. The engine cylinder block is used as a working space of the engine and is used for bearing high-temperature and high-pressure gas when the engine works. In a conventional all-terrain vehicle engine, the engine is subjected to a cooling protection effect through a cooling water jacket arranged around a combustion chamber. The traditional cooling water jacket is only arranged around the combustion chamber, cooling liquid is easy to cause cooling liquid layering phenomenon when the cooling liquid circulates in the cooling water jacket, the cooling liquid at the upper side part in the cooling water jacket flows downwards under the influence of gravity, and the cooling liquid in the cooling water jacket is concentrated at the lower side part of the cooling water jacket, so that the heat dissipation effect on the cylinder block is influenced. So that the cooling liquid in the cooling water jacket of the all-terrain vehicle engine is unevenly distributed and cannot achieve the purpose of cooling. The engine of the all-terrain vehicle is easy to be irreversibly damaged for a long time. Disclosure of Invention In order to solve the defects in the prior art, the invention aims to provide an all-terrain vehicle capable of improving the cooling effect of an engine. In order to achieve the above purpose, the present invention adopts the following technical scheme: The all-terrain vehicle comprises a vehicle frame, a vehicle body covering part at least partially arranged on the vehicle frame, a walking assembly used for supporting the all-terrain vehicle, a power assembly at least partially arranged on the vehicle frame, wherein the power assembly comprises an engine, the engine comprises a cylinder body, a cooling water jacket and a water jacket partition plate, the cooling water jacket is at least partially arranged in the cylinder body, the water jacket partition plate is at least partially arranged in the cooling water jacket, the water jacket partition plate is provided with a first waist-shaped hole and a second waist-shaped hole, the engine further comprises a crankshaft, the crankshaft basically extends along a preset direction, the projection area of the first waist-shaped hole on the projection plane along the preset direction is S1, the projection area of the second waist-shaped hole on the projection plane along the preset direction is S2, and the ratio of the projection area S1 of the first waist-shaped hole to the projection area S2 of the second waist-shaped hole is more than or equal to 2.4 and less than or equal to 3.6. Further, the cylinder block is formed with a cylinder bore therethrough, and the cooling water jacket is disposed around the cylinder bore. Further, the height of the water jacket partition plate extending along the axial direction of the cylinder bore is H1, the height of the cooling water jacket extending along the axial direction of the cylinder bore is H2, and the ratio of the height H1 of the water jacket partition plate to the height H2 of the cooling water jacket is 0.68 or more and 1 or less. Further, the ratio of the height H1 of the water jacket spacer to the height H2 of the cooling water jacket is 0.76 or more and 0.94 or less. Further, the length of the first waist-shaped hole extending along the axial direction of the cylinder hole is L1, the length of the second waist-shaped hole extending along the axial direction of the cylinder hole is L2, and the ratio of the length L1 of the first waist-shaped hole to the length L2 of the second waist-shaped hole is 2.4 or more and 3.6 or less. Further, the ratio of the length L1 of the first waist-shaped hole to the length L2 of the second waist-shaped hole is 2.7 or more and 3.3 or less. Further, the water jacket partition extends substantially in the axial direction of the cylinder bore. Further, the projected area of the water jacket partition plate on the projection plane along the preset direction is S3, and the ratio of the projected area S1 of the first waist-shaped hole to the projected area S3 of the water jacket partition plate is more than or equal to 0.25 and less than or equal to 0.39. Further, the ratio of the projected area S1 of the first waist-shaped hole to the projected area S3 of the water jacket partition is 0.29 or more and 0.36 or less. Further, the cooling water jacket is formed with a fixing groove, and the water jacket partition plate is at least partially arranged in the fixing groove. Through set up the water jacket baffle in the cooling jacket, with the projected area S1 of first waist type ho