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Vane rotary pneumatic pump

A technology of rotary vanes and air pumps, which is applied in the direction of rotary piston pumps, rotary piston machines, rotary piston/swing piston pump components, etc., can solve problems such as foundation corrosion, reduce input power, prevent locking and The effect of reducing the operating frequency and preventing the occurrence of rust

Inactive Publication Date: 2006-07-19
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the oil-free pump compared to this, when the surface treatment is worn out, there will be a problem that the exposed base will be corroded

Method used

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  • Vane rotary pneumatic pump
  • Vane rotary pneumatic pump
  • Vane rotary pneumatic pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0028] figure 1 as well as figure 2 The rotary vane air pump of the present invention is configured by arranging a pump mechanism 2 and a drive motor 4 such as a DC motor in parallel.

[0029] The pump mechanism part 2 is provided with a cylinder 6 made of a metal material such as aluminum, and the cylinder 6 has a cylindrical inner wall formed eccentrically from the axis. Inside the cylinder 6, a cylindrical rotor 8 is disposed. The rotor 8 has a plurality of vane grooves 10 extending in the direction of its central axis. In these vane grooves 10, plate-shaped vanes 12 are inserted in a freely slidable manner without using lubricating oil. Made of lubricating carbon and other materials. On both end surfaces of the cylinder 6 , a front end plate 14 and a rear end plate 16 are arranged to sandwich the rotor 8 and the blades 12 to form a plurality of pump spaces 18 ...

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PUM

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Abstract

At least one of a cylinder ( 6 ), a rotor ( 8 ), a front plate ( 14 ), and a rear plate ( 16 ), all of which form compression chambers ( 18 ), is made of a metal, and a surface treatment is conducted on a portion of such at least one of those members.

Description

technical field [0001] The present invention relates to a so-called oil-free rotary vane air pump that does not use lubricating oil and is applied to an air supply device of a mobile information terminal device using a fuel cell. Background technique [0002] Figure 4 as well as Figure 5 A conventional oil-free vane rotary pump is shown, and a cylinder 103 having a cylindrical inner wall closed by a front end plate 111 and a rear end plate 112 is provided. Inside the cylinder 103 , a rotor 107 is arranged with a small gap between a part of its outer circumference and the inner wall of the cylinder 103 . [0003] A rotating shaft 110 is integrally attached to the rotor 107 , and the rotating shaft 110 is rotatably supported by a ball bearing 116 arranged on the front end plate 111 and a ball bearing 118 arranged on the rear end plate 112 . In addition, a plurality of vane grooves 108 are formed in the rotor 107 , and one end of a plate-shaped vane 109 made of a self-lubri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/344F04C29/00F01C21/08
CPCF05C2203/0869F05C2253/12F05C2201/0466F01C21/08F04C2280/04F04C18/3441F05C2201/90F05C2225/04F04C2230/91
Inventor 中本达也泽井清作田淳
Owner PANASONIC CORP