Cylinder head for water-cooled engine of motorcycle
A water-cooled engine and cylinder head technology, applied to engine components, machines/engines, cylinders, etc., can solve problems such as engine failure, cylinder head gasket ablation, unfavorable cylinder head water outlet layout, etc., to extend the circulation waterway, improve The effect of the cooling effect
Inactive Publication Date: 2015-12-30
力帆科技(集团)股份有限公司
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Problems solved by technology
The disadvantages of this engine water-cooled structure are: 1. Water passes through the cylinder surface, and under high temperature conditions, it is easy to cause the cylinder head gasket to be ablated, which will cause circulating water to enter the engine and cause the engine to fail.
2. There are certain requirements for the size of the components that set the water outlet. If the size of the cylinder head is small, it is not conducive to the arrangement of the water outlet of the cylinder head
In view of the above factors, as well as the high cost of water-cooled engines, the application and promotion of water-cooled engines are restricted to a certain extent.
Method used
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0025] Motorcycle water-cooled engine water-cooled structure, its overall structure see image 3 , including the right crankcase cover 1, cylinder block 2, cylinder head 3, cylinder head 4 and cooling water pump, a cooling water pump installation cavity is arranged on the surface of the crankcase cover 1, and the cooling water pump is installed in the cooling water pump installation cavity and passes through the water pump cover 11 Cover.
[0026] The main improvement of the present invention lies in the cylinder head, specifically see Figure 6-8 , the inside of the cylinder head 3 is provided with a water chamber flow channel 31, the lower surface of the cylinder head 3 is provided with a water passage 32 communicating with one end of the water chamber flow passage, the water passage 32 on the lower surface of the cylinder head and the passage on the upper...
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The invention discloses a cylinder head for a water-cooled engine of a motorcycle. A water cavity runner is formed in the cylinder head, a water overflow hole communicated with one end of the water cavity runner is formed in the lower surface of the cylinder head, and the water overflow hole in the lower surface of the cylinder head corresponds to a water overflow hole in the upper surface of a cylinder body; a cylinder head water outlet communicated with the other end of the water cavity runner is formed in the upper surface of the cylinder head. According to the cylinder head, circulating water only passes through one of the water overflow holes in the cylinder body and the cylinder head, and as the temperature at the water overflow holes is not high, the phenomenon that water enters an engine because a cylinder gasket is burnt out by high temperature of a conventional water-cooled engine is avoided; a water outlet nozzle is arranged on a cylinder cover instead of the cylinder head, and the demand on the size of the cylinder head per se when the water outlet nozzle is arranged on the cylinder head is prevented, so that the cylinder head provided by the invention is suitable for the design of various engine cooling mechanisms.
Description
technical field [0001] The invention relates to motorcycle engine water cooling technology, in particular to a cylinder head for a motorcycle water cooling engine, belonging to the technical field of engine cooling. Background technique [0002] In recent years, with the implementation of the national rich peasant policy and the western development strategy, three-wheeled motorcycles have become a good helper for farmers to make a fortune, and they are also increasingly developing in the direction of large displacement. The continuous increase of displacement, coupled with the harsh environment of the engine (heavy load, poor road conditions, poor user maintenance), high engine temperature, crankshaft big end locked, piston scuffing, burning oil and other faults also increase. Bring very bad negative influence to the popularization of large-displacement tricycle engine. In order to solve such problems, water-cooled engines with better cooling effects have been widely used...
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IPC IPC(8): F02F1/40
Inventor 王胜华谯平文浩
Owner 力帆科技(集团)股份有限公司