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Energy-saving screw profile

A screw profile and screw technology, which is applied to liquid fuel engines, machines/engines, rotary piston/oscillating piston pump components, etc., can solve the problem of small flow pulsation, low output pressure, and low efficiency of the screw profile and other problems, to achieve the effect of improving the efficiency of the whole machine, increasing the output pressure, and increasing the specific flow rate

Active Publication Date: 2020-03-24
SAZHEN COMPRESSOR SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing screw profile has small flow pulsation, low output pressure, small specific flow rate, and low efficiency of the whole machine

Method used

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  • Energy-saving screw profile

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] figure 1 It is a structural schematic diagram of an energy-saving screw profile.

[0018] Such as figure 1 As shown, the energy-saving screw profile is used for a pair of screw rotors 10 and 20 with parallel shafts and reverse external meshing. The end surface profiles of the two screw rotors are conjugate and rotate in antiphase.

[0019] The two screw rotors 10, 20 include: the same six sections of force transmission curves and two sections of closed curves. The six force transmission curves are: the first force transmission curve 1-2 is an arc line, the second force transmission curve 2-3 is an involute, the third force transmission curve 3-4 is an arc line, and the fourth force transmission curve is 4- 5 is a hyperbolic spiral, the fifth section of force transmission curve is a helix 5-6, and the sixth section of force transmissio...

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Abstract

The invention provides an energy-saving screw profile comprising a pair of screw rotors engaged with parallel shafts reversely and externally, and two screw end face profiles are conjugate; the two screw rotors comprise six force transmission curve sections which are identical; the first force transmission curve section is an arc line, and the second force transmission curve section is an involute; the third force transmission curve section is an arc line, and the fourth force transmission curve section is a hyperbolic spiral; and the fifth force transmission curve section is a helix, and thesixth force transmission curve section is an arc line. The energy-saving screw profile has the advantages that the energy-saving screw profile is compatible with multiple performances, and the outputpressure is improved; the specific discharge is increased, and the overall efficiency is improved; and the energy-saving benefits are achieved.

Description

technical field [0001] The invention discloses a screw profile. Background technique [0002] The pump relies on the change of the closed volume between the two screw rotors in the pump and the inner cavity of the pump to transport various fluids, and is widely used in various industries. The end profile of the screw rotor directly affects the performance of the screw positive displacement pump, such as sealing, conveying efficiency, volume ratio, etc. [0003] The existing screw profile has small flow pulsation, low output pressure, small specific flow rate and low efficiency of the whole machine. Contents of the invention [0004] The problem to be solved by the present invention is to provide an energy-saving screw profile, which can be compatible with various performances, increase the output pressure, increase the specific flow rate, improve the efficiency of the whole machine, realize energy-saving benefits, and overcome the defects of the prior art. [0005] The i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/16F04C29/00
Inventor 张清源
Owner SAZHEN COMPRESSOR SHANGHAI CO LTD
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