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Taumelscheiben-verstellkompressor

A technology of volumetric compressors and wobble plates, applied in the fields of wobble plate compressors and wobble plate variable volume compressors, which can solve difficult production and assembly, difficult assembly of constant speed universal joints, and complex rotation stop mechanism Taper and other problems to achieve the effect of ensuring rigidity and small vibration

Inactive Publication Date: 2005-11-02
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the problem arises that it is difficult to fit the constant velocity joint to the sleeve
However, the rotation stop mechanism as a constant velocity universal joint has a complex tapered shape as a whole, and cannot solve the problem that it is difficult to produce and assemble
[0009] Also, Patent Nos. 5,112,197 and 5,509,346 all have a common problem: since the journal that integrally rotates with the drive shaft through the connecting rod portion is provided on the outer peripheral portion of the wobble plate so as to keep it balanced during operation, the compressor’s size increased

Method used

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  • Taumelscheiben-verstellkompressor

Examples

Experimental program
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Effect test

no. 1 example

[0038] Figure 1 to 3 The configuration and operating conditions of the wobble plate type variable displacement compressor according to the first embodiment of the present invention are shown. figure 1 The overall configuration of the compressor 1 under the operating conditions that provide the maximum displacement (100%) is shown. figure 2 Shown in enlarged detail figure 1 The main part. image 3 The operating conditions that provide the minimum displacement (0%) are shown. In these figures, reference numeral 2 denotes a front end cover which is a part of the casing of the compressor 1. Reference numeral 3 denotes a housing integrated with the front end cover 2 by a fastening device not shown in the figure, such as a bolt. The cylinder 4 is fixed in the housing, and a plurality of (for example, five) cylinder bores 5 are figure 1 In the horizontal direction (in the axial direction of the drive shaft appearing later), they are arranged approximately equidistantly around the ce...

no. 2 example

[0066] The load supporting portion 8 in the first embodiment engages and effectively operates when the radial load reaches the maximum 100% capacity or near 100% capacity. Figure 6 The second embodiment shown in is characterized in that the specific load supporting portion 62 is effective not only in 100% capacity but also in a wide high-displacement operation range up to about 70% capacity. In the load supporting portion 62 in the second example, an inclined surface 64 composed of a curved surface is formed on the protrusion 63 provided on the disk portion 9 of the drive shaft 8, and the protrusion on the side of the drive plate 15 that is in contact with the inclined surface 64 The shape of the distal end of the protrusion 65 is a curved surface with a small diameter such as an arc.

[0067] Therefore, under the operating conditions of the compressor 66 of the second example, the radial load acting on the unit blocks of the drive plate 15 and the wobble plate 19 is transmitted ...

no. 3 example

[0072] Figure 8 Is a longitudinal cross-sectional view showing the overall configuration of the wobble plate type variable displacement compressor according to the third embodiment under the operating condition that provides the maximum displacement (100% capacity), Figure 8 Showing offer Figure 7 The minimum displacement (0% capacity) of the compressor in the operating conditions.

[0073] The third embodiment uses a cage-type constant-speed universal joint 68 that is essentially known as a rotation stop mechanism for prohibiting the rotation of the outer ring 22 and the wobble plate 19. Since the configuration of the rotation stop mechanism and its peripheral portion constitutes a feature of the third embodiment, it will be described in detail. Since the basic structure is the same as that of the related art, the description of those parts that have already been explained will be omitted.

[0074]Next, the structure of the rotation stop mechanism and its peripheral portion, ...

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Abstract

In a configuration in which a driving shaft 8 supported in a cantilever manner is connected with a drive plate 15 through a link mechanism 57 and a wobble plate 19 capable of rotating relatively for it is connected with the central shaft 32 through a rotation stopping mechanism 56 including the universal joint 37, load in the radial direction which is component of force of compression reaction force acts on the rotation stopping mechanism 56. By providing projections 53 and 55 which can be mutually engaged between the driving shaft 8 and the drive plate 15 and a special load supporting part composed of an inclined face 54 and engaging the load supporting part in the vicinity of operation region for bringing the maximum discharge capacity, load in the radial direction is supported by the driving shaft 8.

Description

Technical field [0001] The present invention relates to a positive displacement pump or compressor for compressing refrigerant in an air conditioner, and more particularly to a wobble plate type compressor suitable for a wobble plate type having a large displacement such as a compressor for buses Variable displacement compressor. Background technique [0002] Japanese Unexamined Patent Publication No. 2-275070 describes a rotation stop mechanism for a wobble plate in a wobble plate type variable displacement compressor. The rotation stop mechanism includes a guide rod provided on a part of the outer periphery of the wobble plate in parallel with the drive shaft. However, the unsolved problem is that when the rotation stop mechanism is provided on the outer peripheral portion of the wobble plate, the radial size of the compressor increases and the compressor becomes larger. Also, according to the structure, since the moment of inertia of the rotating part is borne by the outer per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B27/10F04B27/08
Inventor 木村成秀竹本刚川野茂大隈亨松田三起夫井上孝高桥卓瞳
Owner DENSO CORP
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