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Compressor
Inactive Publication Date: 2020-08-06
TOYOTA IND CORP
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Summary
Abstract
Description
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Benefits of technology
The technical effect of the patent text is to provide a compressor that stops the vanes from swinging in the circumferential direction.
Problems solved by technology
This results in suction and compression of the fluid in the compression chambers defined by the axial end faces of the rotor and the cam surfaces.
Method used
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first embodiment
[0036]Referring to the drawings, a first embodiment of a compressor will now be described. The compressor of the present embodiment may be used for a vehicle. Specifically, the compressor may be mounted on a vehicle. The compressor may be used for a vehicle air conditioner, and the fluid compressed by the compressor may be a refrigerant containing oil. For convenience of illustration, FIG. 1 shows a rotary shaft 12, a rotating body 60, and two fixed bodies 90 and 110 in side views. In addition, FIGS. 6 and 7 schematically show vanes 131 in cross-sectional views.
[0037]As shown in FIG. 1, the compressor 10 includes a housing 11, a rotary shaft 12, an electric motor 13, an inverter 14, a front cylinder 30, which serves as a cylinder portion, a rear plate 40, a rotating body 60, a front fixed body 90, and a rear fixed body 110.
[0038]The housing 11 may be cylindrical as a whole and includes a suction port 11a, through which fluid is drawn from outside, and a discharge port 11b, through w...
second embodiment
[0255]As shown in FIG. 19, the curvature of a vane outer end face 211 of the present embodiment is greater than the curvature of the front cylinder inner circumferential surface 33. That is, the vane outer end face 211 is convex radially outward and is curved more sharply than the front cylinder inner circumferential surface 33. This creates outer clearances S2, into which fluid flows, between the vane outer end face 211 and the front cylinder inner circumferential surface 33.
[0256]However, since the vane outer end face 211 and the front cylinder inner circumferential surface 33 contact each other, movement of fluid between the chambers on the opposite sides of the vane 131 through between the vane outer end face 211 and the front cylinder inner circumferential surface 33 is restricted.
[0257]The curvature of a vane inner end face 212 of the present embodiment is set to be equal to the curvature of the groove inner end face 130a.
[0258]The present embodiment, which has been described...
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Abstract
A compressor includes a rotary shaft, a rotating body, a fixed body, a vane, and a compression chamber. The vane has a vane end that contacts the surface of fixed body. The fixed body surface includes two curved surfaces. The curved surface includes a convex surface and a concave surface. The convex surface has a convex surface inner end and a convex surface outer end. The curvature of the convex surface inner end is greater than the curvature of the convex surface outer end. The concave surface has a concave surface inner end and a concave surface outer end. The curvature of the concave surface inner end is greater than the curvature of the concave surface outer end.
Description
BACKGROUND1. Field[0001]The present disclosure relates to a compressor.2. Description of Related Art[0002]Japanese Laid-Open Patent Publication No. 2015-14250 describes an axial vane compressor that includes a rotary shaft, a columnar rotor, which has slit grooves, vanes fitted in the slit grooves to be allowed to swing, and side plates having cam surfaces. Each cam surface serves as a fixed body surface provided in the side plate, which serves as a fixed body. Rotation of the rotary shaft and the rotor of this axial vane compressor causes the vanes to rotate while moving in the axial direction of the rotary shaft. This results in suction and compression of the fluid in the compression chambers defined by the axial end faces of the rotor and the cam surfaces.SUMMARY[0003]The present inventors discovered that when the vanes and the fixed body surface contact each other, each vane tends to swing in the circumferential direction of the rotary shaft of the vanes on a pivot, which is the...
Claims
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Application Information
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