Volume type gas compressor

A gas compressor, volumetric technology, applied in the direction of liquid fuel engines, mechanical equipment, machines/engines, etc., can solve the problem that bearing lubrication cannot be performed, volumetric gas compressors cannot use oil-free gas compressors, and housings cannot be maintained Problems such as the gap with the screw rotor to achieve the effect of preventing gas leakage and efficient discharge

Inactive Publication Date: 2011-01-05
NAN AN SEIKO
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, its disclosed volumetric gas compressor cannot be used as an oil-free gas compressor that does not use lubricating oil or lubricating water.
That is, when used as an oil-free gas compressor, the heat generated by adiabatic compression cannot be removed, the optimum clearance between the groove of the screw rotor and the pinion cannot be maintained, and the clearance between the housing and the screw rotor cannot be maintained, And it is impossible to lubricate the bearing

Method used

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  • Volume type gas compressor
  • Volume type gas compressor
  • Volume type gas compressor

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Embodiment Construction

[0043] Hereinafter, an embodiment of a two-stage gas compression device to which the present invention is applied will be described with reference to the drawings.

[0044] (the whole frame)

[0045] figure 1It is a perspective view showing the appearance of a two-stage gas compression device to which the present invention is applied. The two-stage gas compression device 1 includes: a twin-shaft motor 2; a front-stage gas compressor unit 3 and a rear-stage gas compressor unit 4 connected to both sides of the twin-shaft motor 2 in a coaxial state; A discharge pipe 5 for supplying gas compressed by the compressor unit 3 to the subsequent gas compressor unit 4 ; and an intercooler 6 for cooling the compressed gas passing through the discharge pipe 5 . The front-stage gas compressor unit 3 and the rear-stage gas compressor unit 4 are air-cooled volumetric oil-free screw gas compressors.

[0046] The motor case 20 of the biaxial motor 2 is composed of a front-stage motor case 21...

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Abstract

A prestage gas compressor assembly (3) comprises a drive side screw rotor (11), and two sets of flat driven side screw rotor (12, 13) meshing to intersect the drive side screw rotor (11) perpendicularly from the opposite sides. The rotor outline of the drive side screw rotor (11) when it is cut along a plane including the central axis is defined by a concave curve such that the outside diameter increases gradually from the gas suction side toward the gas delivery side. In the concave curve, the distance from the central axis of the drive side screw rotor (11) to a point on the concave curve and the distance from the center of each driven side screw rotor (12, 13) to that point are identical or kept at a fixed ratio. A cooling fan (115) is formed integrally at the axial end face of the drive side screw rotor (11) on the delivery side. A small air-cooled volume type oil free screw gas compressor of simple structure can thereby be attained.

Description

technical field [0001] The invention relates to a volumetric gas compressor suitable for use as an air-cooled oil-free screw gas compressor. Background technique [0002] As a positive displacement gas compressor, an air-cooled + rotary oil-free compressor that does not use oil or water is preferable from the viewpoint of energy reduction, improvement of the global environment, and air quality. [0003] However, in the field of small gas compressors, that is, machines of about 1.5 kW or less, no air-cooled and rotary oil-free gas compressors with a simple structure have been proposed. [0004] For example, in the specification of US Pat. No. 3,133,695, positive displacement gas compressors of a rotary type and an oil supply type are proposed. The disclosed gas compressor is a mechanism in which a screw rotor meshes with two sets of pinion gears to compress the sucked gas. Lubricating oil and lubricating water are basically used for the purpose of sealing air leakage in the...

Claims

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Application Information

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IPC IPC(8): F04C18/52
CPCF04C18/52F04C29/04F04C18/084
Inventor 鸟越大资
Owner NAN AN SEIKO
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