Variable-displacement gear type oil pump

A gear and displacement technology, applied in the direction of lubricating pumps, mechanical equipment, engine components, etc., can solve the problems of reducing engine economy, oil temperature rise, drainage, etc., to improve efficiency and economy, reduce power loss, Guaranteed safe effect

Inactive Publication Date: 2011-03-09
HUNAN OIL PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the engine speed increases, the oil supply volume of the oil pump also increases continuously, the oil pressure in each oil passage increases continuously, and the oil temperature rises, which affects the lubrication effect and the normal operation of the engine. If the engine continues to increase speed, the excess oil can only be limited. Pressure valve discharges out
Its shortcomings are: the oil pump has done some ineffective work, which consumes more effective power of the engine and reduces the economy of the engine.

Method used

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  • Variable-displacement gear type oil pump
  • Variable-displacement gear type oil pump
  • Variable-displacement gear type oil pump

Examples

Experimental program
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Embodiment Construction

[0016] As shown in the accompanying drawings: a variable displacement gear oil pump, which includes a pump cover 1, a pump body 2, a driving gear transmission part 3, a driven gear variable part 4, a control valve part 5 and a safety valve part 6, The pump cover 1 and the pump body 2 are connected together by bolts.

[0017] The driving gear transmission part 3 is composed of a transmission gear 3-1, a driving shaft 3-2 and a driving gear 3-3. -1 interference connection, the middle part is interference connection with the driving gear 3-3, the driving gear 3-3 has no axial movement, and undertakes the rotation function of the gear pump.

[0018] Driven gear variable part 4 is made up of driven shaft 4-1, driven gear 4-2, missing circle slider 4-3, full circle slider 4-4 and spring 4-5. One end of the driven shaft 4-1 is in interference connection with the half-circle slider 4-2, the middle part is in motion-fit connection with the driven gear 4-2, and the other end is in inte...

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PUM

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Abstract

The invention discloses a variable-displacement gear type oil pump, which comprises a pump cover, a pump body, driving gear transmission components, driven gear variable components, control valve components and relief valve components, wherein the pump cover and the pump body are connected together by bolts; the driving gear transmission components consist of transmission gears, a driving shaft and driving gears; the driven gear variable components consist of a driven shaft, driven gears, a segmental slide block, a full-circle slide block and a spring; the control valve components consist of a control contoured plug, a control-valve spring and a control-valve screw plug; and the relief valve components consist of a relief-valve steel ball and a relief-valve spring.

Description

technical field [0001] The invention relates to an oil pump of an engine lubricating system, in particular to a gear oil pump with variable displacement. Background technique [0002] At present, the flow rate of lubricating oil output by the oil pump is set according to the lubrication needs of the engine, and the flow rate of lubricating oil increases with the increase of the engine speed. When the engine speed increases, the oil supply volume of the oil pump also increases continuously, the oil pressure in each oil passage increases continuously, and the oil temperature rises, which affects the lubrication effect and the normal operation of the engine. If the engine continues to increase speed, the excess oil can only be limited. pressure valve to discharge. Its shortcoming is: the engine oil pump has done some ineffective work, consumes more effective power of the engine, and reduces the economy of the engine. Contents of the invention [0003] The purpose of the pre...

Claims

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Application Information

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IPC IPC(8): F16N13/20
Inventor 许仲秋刘光明李战训
Owner HUNAN OIL PUMP
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