Lubricating system for crank-connecting rod mechanism of high-rotation gasoline engine
A technology of crank-link mechanism and gasoline engine, which is applied in the direction of engine lubrication, engine components, machine/engine, etc. It can solve the problems of affecting the lubrication effect, easy foaming of engine oil, and insufficient oil supply on the friction surface, etc., and achieves low production cost. , Easy to make, good lubricating effect
Inactive Publication Date: 2015-02-25
力帆科技(集团)股份有限公司
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Problems solved by technology
However, since the splash lubrication is from the outside to the inside, and the oil is easy to foam, when the engine is under high speed and high load, it will cause insufficient oil supply to the friction surface, thus affecting the lubrication effect
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[0025] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0026] Such as figure 1 , figure 2 , image 3 As shown, the present invention consists of connecting rod 1, connecting rod cover 3, first connecting rod bolt 4, second connecting rod bolt 4', upper bearing bush 6, lower bearing bush 7, piston pin 20, piston 21, crankcase 22, crank Parts structures such as pin 23, left crank 24 and right crank 25. Among them, the connecting rod 1 is preferably forged from an aluminum alloy. The upper end of the connecting rod 1 is small and the lower end is large. A piston pin hole 2 is provided on the small end of the connecting rod 1. A piston pin 20 is pierced in the piston pin hole 2. The small end of the connecting rod 1 is connected with the piston 21 through the piston pin 20, and the piston 21 Set in the cylinder liner on the crankcase 22. There is an annular oil collecting groove 18 in the middle of the inner wa...
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The invention discloses a lubricating system for a crank-connecting rod mechanism of a high-rotation gasoline engine. An upper oil collecting shaft (9) is arranged on the inner wall of a first circular-arc slot at the large end of a connecting rod (1), wherein a first oil inlet (10) is arranged on an upper bearing bush (6); the first oil inlet (10) gets through inner and outer surfaces of the upper bearing bush (6); a lower oil collecting slot (11) is arranged on the inner wall of a second circular-arc slot of a connecting rod cover (3), and a second oil inlet (12) is arranged on the lower bearing bush (7); the second oil inlet (12) gets through inner and outer surfaces of the lower bearing bush (7); and the lower oil collecting slot (11) is communicated with an oil inlet slot (14) at the top surface of an oil throwing block (8) by an oil path (13). The lubricating system for the crank-connecting rod mechanism changes unidirectional lubricating oil inlet to be dual-direction lubricating oil inlet without changing the performance of the gasoline engine or the lubricating mode, thereby completely solving a lubricating problem of a connecting rod assembly of the high-rotation gasoline engine. Besides, the lubricating system for the crank-connecting rod mechanism has such characteristics as a simple structure, easy manufacturing, good lubricating effect, extensive applicable range and the like.
Description
technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a lubricating system for a crank connecting rod mechanism of a high-speed gasoline engine. Background technique [0002] The crank connecting rod mechanism is an important part of the engine. Its function is to convert the force of the gas acting on the top of the piston into the torque of the crankshaft, thereby outputting mechanical energy to the working machine. The crank connecting rod mechanism is generally composed of the main body group, the piston connecting rod group, and the crankshaft flywheel group. Their working conditions are high temperature, high pressure, high speed and chemical corrosion, so the crank connecting rod mechanism is poorly lubricated, and the friction of the relative moving parts becomes Large, the mechanical loss increases, and the engine power will drop. Therefore, the design of lubricating oil passage is extremely important. [0003...
Claims
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IPC IPC(8): F01M1/06
Inventor 吴喆程应维
Owner 力帆科技(集团)股份有限公司