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Oil supplying system of oil pump

An oil supply system and oil pump technology, applied in the direction of pressure lubrication of lubricating pumps, lubrication of valve accessories, engine components, etc., can solve the problem of affecting the lubrication effect, insufficient lubricating oil for the inner wall of the upper cylinder of the crankshaft, and insufficient oil supply for the crankcase And other problems, to achieve the effect of stable operation

Active Publication Date: 2014-01-15
SUZHOU CLEVA PRECISION MACHINERY & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology uses a special oil tank around rotating blades mounted on the crankshaft to create an oil mist, but designing the engine this way is wider, heavier and more expensive
There are also engines that spray lubricating oil to lubricate the crankcase, but the oil injection port is usually located on the crankshaft, resulting in insufficient lubricating oil on the inner wall of the cylinder on the upper part of the crankshaft, which affects the lubrication effect
[0003] In the prior art, the four-stroke engine that utilizes the positive and negative pressure difference of the crankcase is widely used, but its disadvantage is that the crankcase of the engine leaks air or other conditions may easily lead to insufficient oil supply to the crankcase, causing problems in the operation of the engine. poor oil stability

Method used

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  • Oil supplying system of oil pump
  • Oil supplying system of oil pump
  • Oil supplying system of oil pump

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described below in combination with specific embodiments.

[0028] As shown in the figure, the four-stroke engine of the preferred embodiment of the present invention includes a crankcase 1 , an oil pan 2 , a cam chamber 3 , a rocker chamber 4 and an air filter 6 . The oil pan 2 is used to store lubricating oil. Above the oil pan 2 is the crankcase 1. The crankshaft 10 is arranged in the crankcase 1 and engaged with the piston 7 in the cylinder 8. The oil pan 2 and the crankcase 1 communicate through an oil supply passage 21. . A distributing chamber 5 is provided below the crankcase 1, and the crankcase and the distributing chamber are communicated through the first oil delivery channel 15. The distributing chamber 5 can separate oil and gas, and the separated liquid lubricating oil flows into the oil pan 2 through the small hole at the bottom of the separation chamber. The remaining gaseous lubricating oil passes through, and the...

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PUM

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Abstract

The invention discloses an oil supplying system of an oil pump. The oil supplying system comprises the oil pump for providing a pressure source and a first oil supplying channel for being communicated with an oil tray and a crank case, the oil pump is arranged in a pump chamber, and lubricating oil enters the crank case through the first oil supplying channel. The oil supplying system of the oil pump further comprises a second oil supplying channel for being communicated with a rocker arm chamber and the pump chamber, and the oil pump is connected in the first oil supplying channel and the second oil supplying channel in series. By means of the technical scheme, when a four-stroke engine is used in a slant or reversed mode, the lubricating oil in an oil-gas separating cavity can be rapidly discharged.

Description

technical field [0001] The invention relates to an engine oil supply system, more particularly to a system for supplying lubricating oil by an oil pump. Background technique [0002] Like portable lawn mowers (shearers) and backpack working machines for grass and trees, traditional two-stroke and four-stroke small general-purpose engines have been widely used as engines that drive operators to carry or carry work machines. engine. Due to stricter pollutant emission regulations, there is an increasing need to change the driving source from a two-stroke to a four-stroke engine. However, the four-stroke engine has a more complex lubrication system, which makes the engine Not very effective. Lubrication has become the main design problem of each engine manufacturer, and now only Honda Company is used for mass production of four-stroke engines that can work under various inclination angles according to the patented technology of EP835987. The technology uses a special oil tank...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/02F01M9/10F01M1/08
CPCF01M11/02F01M1/02F01M2001/126F01M2011/022F01M2011/023
Inventor 孔钊郭宁陈干冯可亚
Owner SUZHOU CLEVA PRECISION MACHINERY & TECH
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