Variable-displacement gear-type oil pump

A gear machine and displacement technology, which is applied in the direction of lubricating pumps, mechanical equipment, engine components, etc., can solve the problems of affecting the normal operation of the engine, consuming more effective power of the engine, and reducing the economy of the engine, so as to improve efficiency and economy Sex, reduce temperature, and reduce production cost

Inactive Publication Date: 2010-11-10
HUNAN OIL PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flow rate of lubricating oil increases as the engine speed increases. After the engine speed increases, the oil supply 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 nor

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
Comparison scheme
Effect test

Example Embodiment

[0014] Embodiment one

[0015] like figure 1 Shown: a gear oil pump with variable displacement, including a pump cover 1, a pump body 2, a driving gear 3, a driving shaft 4, a transmission gear 5, a control valve part 6, a driven shaft 7, a circular slider 8, The driven gear 9, the full circle slider 10 and the spring 11; the driving shaft 4 is installed in the shaft hole of the pump body 2 and the pump cover 1, the outer end is press-fitted with the transmission gear 5, and the driving gear 3 with interference fit is installed in the middle, Constitute the transmission part; the driven shaft 7, the missing circle slider 8, the driven gear 9, the full circle slider 10 and the spring 11 form variable parts; 4 separated outer edges; the transmission part of the driving gear 3 is arranged opposite to the variable part of the driven gear 9, and is combined with the control valve part 6 to form a variable displacement gear oil pump system.

Example Embodiment

[0016] Embodiment two

[0017] like figure 2 As shown, a variable displacement gear oil pump is formed by fastening two parts of the pump cover 1 and the pump body 2. The high pressure area of ​​the pump body 2 is provided with an oil outlet 201, an oil outlet chamber 204 and an outlet The oil hole 205 forms the pressure oil passage; the safety valve steel ball 13 spring 12, and the oil discharge hole 202 and the safety valve hole 203 form a safety oil discharge passage; an oil inlet 214, an oil inlet 213 and The oil inlet cavity 212 forms a low-pressure oil inlet channel; it consists of a regulating plunger spool 602, a regulating spring 604, a regulating screw plug 603, and matching oil guide holes 206, valve bottom oil inlet holes 207, elongated oil holes 208, regulating Oil hole 209, annular groove 601, valve hole 600, missing circle oil cavity 210 and oil drain hole 211 form a variable control system; the variable is composed of a missing circle slider 7, a driven shaft...

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PUM

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Abstract

The invention provides a variable-displacement gear-type oil pump comprising a pump cover 1, a pump body 2, a driving gear 3, a driving shaft 4, a transmission gear 5, adjustment valve components 6, a driven shaft 7, a segmental sliding block 8, a driven gear 9, a whole-circle sliding block 10 and a spring 11, wherein the driving shaft 4 is mounted in the axial hole of the pump body 2 and the pump cover 1; the transmission gear 5 is in press fit with the outer end of the driving shaft 4; the driving gear 3 in interference fit is mounted in the middle of the driving shaft 4 to constitute a transmission component; the driven shaft 7, the segmental sliding block 8, the driven gear 9, the whole-circle sliding block 10 and the spring 11 constitute a variable component; the adjustment valve components 6 are arranged at intervals on the outer edge of the segmental sliding block which is separated from the driving shaft 4; and the transmission component of the driving gear 3 and the variable component of the driven gear 9 are arranged oppositely, and the transmission component of the driving gear 3, the variable component of the driven gear 9 and the adjustment valve components 6 can be combined into the variable-displacement gear-type oil pump. Accordingly, the invention can reduce the temperature of the lubricating oil, improve the lubricating performance of the engine oil, reduce the power loss of the engine, improve the efficiency and economical efficiency of the engine and reduce the production cost.

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 an invariable oil pump set according to the lubrication needs of the engine. The flow rate of lubricating oil increases as the engine speed increases. After the engine speed increases, the oil supply 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. The engine continues to speed up, and the excess oil can only be drained from the pressure limiting valve. Its weak point is: the engine oil pump has done certain invalid work, has consumed the effective power of engine more, has reduced the economy of engine. Contents of the invention [0003] The purpose of the p...

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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