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An oil control valve with a feedback oil circuit inside

An oil control valve and oil circuit technology, applied in valve devices, mechanical equipment, engine components, etc., can solve problems such as slow response speed and large oil loss, reduce oil loss, speed up adjustment, and maintain phase. stable effect

Active Publication Date: 2022-07-19
JIANGSU HAILONG ELECTRICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an oil control valve with a feedback oil circuit inside, which solves the problem that the oil control valve used inside the oil pump in the variable valve timing adjustment system currently has a large amount of oil loss. , it is prone to the problem of slow response speed of the variable valve timing adjustment system

Method used

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  • An oil control valve with a feedback oil circuit inside
  • An oil control valve with a feedback oil circuit inside
  • An oil control valve with a feedback oil circuit inside

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1-3 As shown, an oil control valve with an internal feedback oil circuit includes a valve body 10, an oil inlet 20 is opened on one side of the valve body 10, and the inner two sides of the valve body 10 are divided into A oil passage and B oil passage The oil passage A and the oil passage B are respectively connected to the oil passage A and the oil passage B of the driver. An oil inlet assembly is arranged on the right side of the inside of the valve body 10, and a bushing 30 is arranged inside the valve body 10. A valve sleeve 40 is provided inside, the right side of the valve sleeve 40 is in contact with the left side of the oil inlet assembly, and the left side of the valve sleeve 40 is connected with the inside of the valve body 10 through the circlip 50. The reversing rod assembly, and the surfaces of the valve sleeve 40 and the valve body 10 are provided with several oil outlet holes 60. The reversing rod assembly includes a first reversing rod 101 a...

Embodiment 2

[0033] see Figure 4-5 As shown, another preferred solution in the present invention, the reversing rod assembly further includes a third reversing rod 201 and a fourth reversing rod 202, and both the third reversing rod 201 and the fourth reversing rod 202 are located in the valve The interior of the sleeve 40 is movably arranged, a second connecting sleeve 203 is arranged between the third reversing rod 201 and the fourth reversing rod 202, and steel sheets 204 are arranged on both sides inside the second connecting sleeve 203. The sheets 204 are all slidably arranged inside the second connecting sleeve 203 , a spring one 205 is arranged between the opposite sides of the two steel sheets 204 , and the two ends of the spring one 205 are respectively fixed to the opposite sides of the two steel sheets 204 For connection, the surface of the second connection sleeve 203 is provided with a second oil guide hole 206 , and the second oil guide hole 206 communicates with the interio...

Embodiment 3

[0035] see Figure 6-7As shown, another more preferred solution in the present invention, the reversing rod assembly further comprises a fifth reversing rod 301 and a sixth reversing rod 302, and the fifth reversing rod 301 and the sixth reversing rod 302 are both located at The inside of the valve sleeve 40 is movably arranged, a third connecting sleeve 303 is arranged between the fifth reversing rod 301 and the sixth reversing rod 302, and steel sleeves 304 are movably arranged on both sides inside the third connecting sleeve 303. The two steel sleeves 304 are all concave parts, the notches of the two steel sleeves 304 are opposite to each other, and a second spring 307 is arranged between the opposite notches of the two steel sleeves 304, and the two ends of the second spring 307 are respectively connected to the two steel sleeves. The interior of 304 is fixedly connected, and the surface of the third connection sleeve 303 is respectively provided with a third oil guide hol...

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Abstract

The invention relates to the technical field of an engine variable valve timing system, in particular to an oil control valve with an internal feedback oil circuit, comprising a valve body, one side of the valve body is provided with an oil inlet, and two inner sides of the valve body are provided with an oil inlet. It is divided into A oil passage and B oil passage. In the present invention, the reversing rod assembly is arranged inside the oil control valve, so that the oil in the A oil passage can supplement the oil pressure of the B oil passage, thereby accelerating the variable valve timing. Adjust the adjustment speed of the system to keep the phase stable; at the same time, steel sheets and steel sleeves can be used instead of shrapnel. The sliding or the sliding of the steel sleeve inside the third connecting sleeve connects the A oil passage and the B oil passage, realizes the oil pressure between the A oil passage and the B oil passage complement each other, and adjusts the adjustment angle of the valve timing system. Effectively reduce the loss of oil and realize the fast response of the variable valve timing system under low oil pressure conditions.

Description

technical field [0001] The invention relates to the technical field of an engine variable valve timing system, in particular to an oil control valve with a feedback oil circuit inside. Background technique [0002] As the emission requirements are upgraded from National V to National IV, the requirements for engine oil consumption are also getting higher and higher. At present, the common variable valve timing adjustment system mainly uses the oil pump to output oil pressure to the oil control valve as the driving force to work. , the oil discharged from the phaser A / B oil passage is directly discharged from the T port of the oil control valve, and the loss of oil is relatively large, which puts forward higher oil pressure and pump oil demand for the engine oil pump system, resulting in the engine The system structure is more complicated; when the load torque of the camshaft is large, the high driving oil pressure ratio must be used to compensate for oil leakage, especially ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/34426
Inventor 孟宾宾朱圣明张宪朱亚敏
Owner JIANGSU HAILONG ELECTRICAL APPLIANCE
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