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Wrap of cylinder and its effect on main features of rotary vane compressor for automobile air conditioning system.

Author(s) : LI L., ZHAO Y., GUO B., et al.

Type of article: Article, IJR article

Summary

The rotary vane compressor has been used in automobile air conditioning systems. One of the key factors of its design is the wrap of its cylinder. From the working principle of this type of compressor, the authors mathematically explain why the wrap is composed of four parts: arc of circle, main curve, and two segments of transit curves; the conditions that the wrap needs to satisfy are derived simultaneously. Under the same conditions, the authors compared the gas force Fp, contact force Fnc of the blade head, the force acting on rotor by blades, and the suction volume Vs for three kinds of curves. The wrap composed of a trigonometric function can form the biggest Vs value, while the least suction volume Vs will be reached when the cubic polynomial is used. The wrap composed of a trigonometric function forms the biggest absolute value of the gas force Fp and the middle peak value of the force acting on rotor by blades, while the least absolute value of the gas force Fp and the biggest contact force Fnc of blade head will be reached when the cubic polynomial is used. The force acting on the rotor by blades reaches the highest peak value if the main curve is the elliptical one. The frequency of the force acting on the rotor by blades is the same as the number of blades in the range of the crank angle between 0 and 180°.

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Pages: 566-574

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Details

  • Original title: Wrap of cylinder and its effect on main features of rotary vane compressor for automobile air conditioning system.
  • Record ID : 2003-2262
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 26 - n. 5
  • Publication date: 2003/08

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