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Testing system and method for transient friction torque of oil pump

A friction torque, test system technology, applied in pump testing, pump control, mechanical equipment, etc., can solve the problem of mechanical friction power loss without a clearly defined test method, etc.

Active Publication Date: 2019-08-16
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, JB / T 8413.1-2010 Internal Combustion Engine Oil Pump Part 1: Assembly Technical Conditions only stipulates the hydraulic output power, and there is no clear definition and corresponding test method for mechanical friction power loss

Method used

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  • Testing system and method for transient friction torque of oil pump
  • Testing system and method for transient friction torque of oil pump
  • Testing system and method for transient friction torque of oil pump

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] Such as Figure 1-3 As shown, the test system of the instantaneous friction torque of the oil pump of the present invention includes a frequency converter 1, a motor 2, a dynamic torque sensor 3, an oil pump 4, a transient pressure sensor 5, a mass flow meter 6, an oil delivery pipe 7, an oil storage tank 8, The oil temperature heater 9, the inverter 1 is connected with the motor 2, and the inverter 1 can be used to control the rotation frequency of the motor 2; one end of the motor 2 and the torque sensor 3 is connected through a coupling; the other end of the torque sensor 3 is connected through The coupling is connected with the oil pump 4, and the torque sensor 3 can measure the speed and torque of the motor 2; the motor 2 is controlled by the frequency converter 1, and can indirectly drive the oil pump 4 to rotate through the dynamic torque sensor 3 so th...

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Abstract

The invention discloses a testing system for transient friction torque of an oil pump. The testing system comprises a frequency converter, a motor, a dynamic torque sensor, an oil pump, a transient pressure sensor, a mass flowmeter, an oil delivery pipe, an oil storage tank and an oil temperature heater, wherein the frequency converter is connected with the motor, the motor is connected with one end of the torque sensor through a coupling, the other end of the torque sensor is connected with the oil pump through another coupling, the oil inlet of the oil pump is connected with the storage tank, the oil outlet of the oil pump is connected with the mass flowmeter, the transient pressure sensor is connected with the oil pump, the mass flowmeter is connected with the oil delivery pipe, and theoil delivery pipe is connected with the oil storage tank. During oil pumping, engine oil is pumped from the storage tank, and then the pumped oil flows back to the storage tank through the mass flowmeter and the oil delivery pipe. The testing system can accurately obtain the transient friction torque of the oil pump, the structure is simple, environment-friendly and energy-saving effects are achieved, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of vehicle oil pump detection, in particular to a test system and method for instantaneous friction torque of an oil pump. Background technique [0002] The driving power of the engine oil pump accounts for about 3%-5% of the effective power of the engine. In order to meet the increasingly stringent fuel consumption limit requirements of vehicles, reducing the driving power loss of the oil pump has become one of the important goals of automotive engine design. The driving power of the oil pump mainly includes two parts: hydraulic output power and mechanical friction power. [0003] The hydraulic output power of the oil pump P hd =P out *Q out , which is the product of the outlet pressure and the outlet flow, is mainly affected by the lubricating oil outlet pressure and the lubricating oil flow (including the theoretical flow and leakage flow of the oil pump). [0004] Oil pump mechanical friction power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00F04D15/00
CPCF04B51/00F04D15/0088
Inventor 刘忠民步晨嘉陆文舒
Owner HANGZHOU DIANZI UNIV
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