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Vane compressor

A compressor and vane type technology, which is applied in the field of vane compressors, can solve the problems such as the deterioration of the accuracy of the rotation center of the impeller, and achieve the effect of reducing mechanical loss and improving service life

Active Publication Date: 2012-01-25
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the impeller and the end plate are composed of different parts, there are problems such as deformation caused by fastening the impeller and the end plate, coaxial misalignment between the impeller and the end plate, etc., resulting in the outer diameter of the impeller. and the accuracy deterioration of the center of rotation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] At first, regarding the basic technical thought of the present invention, refer to figure 1 Be explained. figure 1 It is an explanatory diagram of the basic technical idea of ​​the present invention. Here, a conventional general vane compressor (for example, Patent Document 1) and the vane compressor of the present invention are compared and shown. In addition, as already described, an invention similar to the basic technical idea of ​​the present invention is disclosed in Patent Document 2, for example, but the means (method) for realizing it in the present invention is different. The implementation means will be further described in detail.

[0034] As already described, in a conventional general vane compressor (for example, Patent Document 1), the direction of the vanes is restricted by the vane grooves formed in the impeller portion of the impeller shaft. The blades are always held at the same inclination relative to the impeller. Therefore, as the impeller sha...

Embodiment approach 2

[0083] Figure 9 It is a figure which shows Embodiment 2, and is a top view (angle 90 degrees) of the compression member 101 of the vane compressor 200. FIG. exist Figure 9 In , the case where the orientation of the vane 7 is a digging type (the orientation of the vane is inclined to the rotation direction relative to the normal line of the cylinder inner diameter) is shown. exist Figure 9 Among them, B is the installation direction of the blade holder 6a of the blade positioner 6 and the blade direction, C is the normal line of R of the front end portion 7a of the blade 7, and the arrow is the rotation direction. The blade holding part 6a of the blade positioner 6 is attached to the end surface of the annular component of the blade positioner 6 obliquely in the B direction. In addition, the normal line C of R of the front end portion 7a of the vane 7 is inclined with respect to the vane direction B, and is directed toward the center of the cylinder 1 ( A normal line C t...

Embodiment approach 3

[0086] Figure 10 It is a figure which shows Embodiment 3, and is a structure figure which integrated the vane 7 and the vane positioner 6. In Embodiment 1 described above, the relative positional relationship between the back groove 7b of the vane 7 and the vane holders 5a, 6a of the vane positioners 5, 6 does not change during the operation of the vane compressor 200 . Therefore, both (blade 7, blade positioners 5, 6) can be integrated. exist Figure 10 In , an example in which only the vane positioner 6 and the vane 7 are integrated is shown, but the vane positioner 5 may or may not be integrated in the same manner. At least one of the blade positioners 5 and 6 is integrated with the blade 7 .

[0087] Next, the operation will be described. Perform substantially the same operation as Embodiment 1, but differ from Embodiment 1 in that at least one of the vane positioners 5 and 6 is integrated with the vane 7, whereby the movement of the vane 7 in the impeller normal dire...

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Abstract

A vane compressor according to the present invention, including a cylinder which is approximately cylindrical and whose both ends located in an axial direction are open, a cylinder head and a frame which close both the ends of the cylinder, a rotor shaft which includes a rotor part being cylindrical and rotating in the cylinder and a shaft part transmitting torque to the rotor part, and a vane which is installed in the rotor part and whose tip portion has the R-shape facing outward, performs the compression operation in the state where the normal to the R-shape of the tip portion of the vane and the normal to the inner surface of the cylinder are always approximately coincident with each other.

Description

technical field [0001] The present invention relates to vane compressors. Background technique [0002] Conventionally, a general vane compressor having a structure in which a vane is fitted into a vane groove, and the tip of the vane slides while abutting against the inner diameter of the cylinder has been proposed (for example, refer to Patent Document 1). The above vane grooves are formed at one or more places in the impeller portion of the impeller shaft (the structure that integrates the cylindrical impeller portion that rotates in the cylinder and the shaft that transmits the rotational force to the impeller portion is called the impeller shaft). . [0003] In addition, a vane compressor has also been proposed in which the inside of the impeller shaft is hollow and the fixed shaft in which the blades are disposed, the blades are rotatably attached to the fixed shaft, and the outer diameter of the impeller portion is near the fixed shaft. The blade is held rotatably w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/344
CPCF04C27/001F01C21/0836F04C18/3441F01C21/0809F04C18/352F04C18/321F04C18/344F04C29/02F04C29/00
Inventor 前山英明高桥真一林雅洋关屋慎横山哲英中尾英人佐佐木辰也
Owner MITSUBISHI ELECTRIC CORP