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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 sensor installation, and achieves a convenient variable displacement compressor piston stroke measurement method, which is not easy Leakage, simple structure effect

Inactive Publication Date: 2004-10-06
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 swing plate type variable displacement compressor adopts a swing swash plate structure, in which the swing swash plate is connected with the piston 1 by a two-way spherical connecting rod 2. Its basic components are mainly a main shaft 5 with a driving lug, a sliding sleeve 7, and a rotating shaft. The neck 6 and the rocking plate 3 that convert the rotary motion of the shaft journal into the linear motion of the piston, etc. Changing the angle of the rocking plate can be realized by the movement and force of the main shaft 5 with driving lugs, the sliding sleeve 7 and the rotating journal 6. The rocking box pressure, exhaust pressure and suction pressure generate a force on each piston, which is transmitted to the rocking plate 3 and the rotary journal 6 through the piston rod, so that the rocking plate and the rotary journal drive the lug around the axis The sliding joint 14 rotates to form different rocking plate angles, thereby changing the piston stroke. Two hollow...

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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 for automobile air conditioners, 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 rocking plate type and swash plate type, hereinafter referred to as variable displacement compressor) of the automobile air conditioning system abandons the traditional clutch opening and closing compressor adjustment method, by changing the rocking plate (or swash plate) Plate) angle to change the piston stroke of the compressor, so that the displacement of the compressor is changed (see attached figure 1 ). In this way, the variable displacement compressor will adjust the cooling capacity of the air-conditioning system according to the load changes in the car, realizing the continuous operation of the system, the compre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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