Piston dynamic seal apparatus used for Calor fluid machine

A technology of fluid machinery and dynamic sealing, which is applied to components, mechanical equipment, machines/engines, etc. of pumping devices for elastic fluids. It can solve problems such as leakage in the fit gap, achieve the effects of reducing leakage and improving the efficiency of adiabatic indication

Inactive Publication Date: 2011-06-22
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a piston dynamic sealing device of Carroll fluid machinery, which solves the dynamic sealing problem that the fluid medium conveyed in the working chamber of the cylinder of Carroll fluid machinery leaks through the matching gap between the piston and the cylinder hole

Method used

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  • Piston dynamic seal apparatus used for Calor fluid machine
  • Piston dynamic seal apparatus used for Calor fluid machine
  • Piston dynamic seal apparatus used for Calor fluid machine

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:

[0027] figure 1 It is a principle diagram of the mechanism motion transformation relation of the Carroll fluid machine targeted by the present invention. The slider in the figure is equivalent to the piston, the guide rod is equivalent to the cylinder hole, and the distance e between the cylinder body (ie the guide rod) and the center of the main shaft (ie the crank) is just equal to the crank radius r. When the crank drives the slider to rotate, the slider slides along the guide rod, and drives the guide rod to rotate at a half-synchronous rotation speed of the crank. Every time the crank rotates one revolution, the slider travels 4r along the guide rod. In the mechanism with only one slider and guide rod, when the crank angle is 180°, there is uncertainty in the direction of rotation of the guide rod.

[0028] figure 2 It is a schematic d...

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Abstract

The invention relates to Carroll fluid machinery and discloses a piston dynamic sealing device used in Carroll fluid machinery. The piston dynamic sealing device comprises a ring groove (3a) arranged on an outer cylindrical surface (3c) of a piston (3) matched with a cylinder hole (2a) and a sealing ring (4) arranged in the ring groove (3a), and is characterized in that: the ring groove (3a) is arranged in a way that is close to the end of the piston (3); a special contour line (3d) formed by the intersection of the ring groove (3a) and the outer cylindrical surface (3c) of the piston (3) is the same as an periphery special contour line (3b) of a working end face of the piston (3); the sealing ring (4) and the ring groove (3a) have the same special shapes and are sliding-fit along the radial direction. Compared with the traditional Carroll fluid machinery, the invention can substantially reduce leakage of the medium transmitted in a working cavity through the ring-shaped matched gap between the piston and the cylinder hole, thereby improving the capacity efficiency and thermal efficiency of the fluid machinery.

Description

technical field [0001] The invention relates to a Carroll fluid machine, in particular to a piston dynamic sealing device for a Carroll fluid machine. Background technique [0002] The article "Compressor Uses New Rotary Principle [Document 1]" in the fourth issue of the Canadian magazine "Design Engineering" published in 1973 introduced a new type of compressor for the first time in the world. It was proposed by Robert Karol, and further developed by Richard Ansdale, a famous British rotating machinery expert, and a prototype was manufactured by the British Well-worthy company. This new type of compressor is mainly composed of a rotating cylinder block with a spherical outer peripheral surface, a matching shell with a spherical inner surface that can be split up and down, two cylindrical pistons with spherical end faces, and a cylinder with two The main shaft of an eccentric wheel, and the end covers and bearings on both sides; on the rotating cylinder block, there are two...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/02
Inventor 高秀峰郁永章魏进家冯诗愚顾兆林
Owner XI AN JIAOTONG UNIV
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