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A Crankcase Combination for Reduced Engine Oil Loss

A technology of crankcase and right crankcase, which is applied in the direction of crankcase ventilation, mechanical equipment, engine components, etc., can solve the problem that the engine oil is easy to be ejected from the exhaust nozzle with the exhaust gas, so as to protect the normal operation, easy to separate, reduce the The effect of abnormal wear

Inactive Publication Date: 2015-11-25
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiency that the engine oil is easily ejected from the exhaust nozzle along with the exhaust gas in the existing crankcase assembly structure, the purpose of the present invention is to provide a crankcase assembly in which the engine oil is not easily ejected from the exhaust nozzle along with the exhaust gas.

Method used

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  • A Crankcase Combination for Reduced Engine Oil Loss
  • A Crankcase Combination for Reduced Engine Oil Loss
  • A Crankcase Combination for Reduced Engine Oil Loss

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Crankcase combination of the present invention is the same as prior art, comprises right crankcase 1 and left crankcase 2, is provided with fastening screw hole at left crankcase and right crankcase periphery, and fastening bolt passes through fastening screw hole and left crankshaft The case and the right crankcase are fixedly connected, and a gasket 3 is provided on the surface of the case to seal. In addition to preventing oil leakage after the combination of the left and right crankcases, the gasket also guides the direction of oil and gas, making it follow the set path.

[0019] The right crankcase 1 is provided with a right crankcase exhaust gas inlet 11, and the right crankcase exhaust gas inlet 11 communicates with the right crankcase exhaust gas passage 12. In the rear section of the right crankcase exhaust gas passage, a separation plate 13 is formed to fo...

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PUM

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Abstract

The invention discloses a crankcase combination capable of lowering engine oil loss. A left crankcase and a right crankcase are both provided with waste gas inlets and waste gas channels; the rear section of the waste gas channel of the right crankcase waste channel is provided with an isolation plate to form two paths of channels; the waste gas channel of the right crankcase on the front section of the isolation plate is provided with an oil and gas separation guide plate; a channel entering a waste gas nozzle, which is formed by the isolation of the waste gas channel of the right crankcase and the isolation plate, forms bending-type communication; a baffle is arranged in an oil return cavity; another cavity is isolated out of the oil return cavity by the baffle; a gasket is provided with a second communication hole; and the other cavity isolated by the baffle is communicated with the waste gas channel of the left crankcase by the second communication hole. According to the crankcase combination disclosed by the invention, vaporized engine oil is easier to liquefy. Under the action of the oil and gas separation guide plate, the engine oil and the waste gas can be easily separated, and most parts of vaporized engine oil can flow back to the crankcase again so as to reduce abnormal loss of the engine oil in the crankcase, thereby being favorable for protecting the engine to enable the engine to normally work.

Description

technical field [0001] The invention relates to the improvement of the motorcycle engine crankcase technology, in particular to a motorcycle engine crankcase combination capable of reducing engine oil loss. Background technique [0002] In the crankcase of a motorcycle engine, the crankcase is formed by combining two parts of the left and right crankcases, and a gasket is provided on the surface of the combined box to seal it. In addition to preventing oil leakage after the combination of the left and right crankcases, the gasket also guides the oil and gas to follow the set path. [0003] Due to the increase of the displacement of the most commonly used CG series engines in the market, the temperature of the engine also increases, the viscosity of the oil decreases, the fluidity of the engine oil increases, and the vaporization phenomenon is more obvious. When the engine is in a high-speed state, the engine oil is likely to be ejected from the exhaust nozzle along with the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F7/00F01M13/04
Inventor 谯平周文全王胜华杨世蓉
Owner 力帆科技(集团)股份有限公司
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