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Method and device for measuring piston stroke of displacement-variable swashplate compressor

A piston stroke and measuring device technology, which is applied to mechanical measuring devices, measuring devices, mechanical devices, etc., can solve problems such as compressor leakage that increases the difficulty of installing sensors, and achieves a convenient and reliable method for measuring piston strokes of variable displacement compressors. Good performance, not easy to leak

Inactive Publication Date: 2003-02-19
TSINGHUA UNIV
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Problems solved by technology

The disadvantage of this method is that the stroke sensor is placed inside the compressor, and placed at the suction and exhaust ends with a more complex structure. The sensor signal line must be drawn out from the compressor, which will inevitably increase the difficulty of sensor installation and the possibility of compressor leakage.

Method used

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  • Method and device for measuring piston stroke of displacement-variable swashplate compressor
  • Method and device for measuring piston stroke of displacement-variable swashplate compressor
  • Method and device for measuring piston stroke of displacement-variable swashplate compressor

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specific Embodiment approach

[0026] The rocker plate type variable displacement compressor adopts a swash plate structure, in which the swash plate is connected to the piston 1 by a two-way spherical connecting rod 2, and its basic components mainly include a main shaft 5 with driving lugs, a sliding bushing 7, a rotating shaft The neck 6 and the rocker plate 3 that convert the rotational motion of the journal into the linear motion of the piston, etc. The angle of the rocker plate can be realized by the movement and force of the main shaft 5 with driving lugs, the sliding bushing 7 and the rotating journal 6 . The rocking plate box pressure, exhaust pressure and suction pressure generate a force on each piston, which is transmitted to the rocking plate 3 and the rotating journal 6 through the piston rod, so that the rocking plate and the rotating journal are driven around the shaft in the lug The sliding joint 14 rotates to form different rocking plate angles, thereby changing the piston stroke. Two hol...

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Abstract

A method and device for measuring the piston stroke of displacement-variable swashplate compressor features that a pin is inserted in the central hole of shaft neck pin and linked to a transmission rod in the central through hole of mainshaft, and a stroke sensor is connected to another end of said transmission rod. After the displacement of shaft neck pin is measured by the said sensor, the variation of piston stroke can be found out. Its advantages are simple structure, no leakage and high reliability.

Description

technical field [0001] The invention relates to a method and device for measuring the piston stroke of a variable-displacement compressor used in an automobile air conditioner, and belongs to the technical field of fluid machinery and refrigeration and air conditioning. Background technique [0002] The stepless variable displacement swash plate compressor (including rocker plate type and slant plate type, hereinafter referred to as variable displacement compressor) of the automotive air conditioning system abandons the traditional adjustment method of the clutch on-off compressor. Plate) Angle to change the piston stroke of the compressor, so that the displacement of the compressor changes (see the appendix for the rocking plate compressor figure 1 ). In this way, the variable-displacement compressor will adjust the cooling capacity of the air-conditioning system according to the change of the load in the car, realizing continuous operation of the system, continuous and st...

Claims

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Application Information

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IPC IPC(8): G01B5/04G06K7/00G06K17/00G06K19/00
Inventor 窦春鹏田长青杨新江胡世辉李先庭廖云飞
Owner TSINGHUA UNIV
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