Control valve for variable-capacity compressor, and assembly method for same

An assembly method and compressor technology, which are applied to liquid variable volume machinery, valve devices, variable volume pump components, etc., can solve the problems of increased number of components, complicated assembly procedures, increased processing workload, and increased processing costs, etc. To achieve the effect of reducing the processing workload

An assembly method and compressor technology, which are applied to liquid variable volume machinery, valve devices, variable volume pump components, etc., can solve the problems of increased number of components, complicated assembly procedures, increased processing workload, and increased processing costs, etc. To achieve the effect of reducing the processing workload

CN109477472AActive Publication Date: 2019-03-15FUJIKOKI MFG CO LTD
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  • Control valve for variable-capacity compressor, and assembly method for same
  • Control valve for variable-capacity compressor, and assembly method for same
  • Control valve for variable-capacity compressor, and assembly method for same

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Experimental program
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Effect test

no. 1 approach

[0046] Figure 1 ~ Figure 3 It is a vertical cross-sectional view showing the first embodiment of the control valve for a variable displacement compressor according to the present invention, figure 1 Indicates that the main valve is open and the auxiliary valve is closed (during normal control), figure 2 Indicates that the main valve is closed and the auxiliary valve is closed (when the compressor starts transition), image 3 Indicates that the main valve is closed and the auxiliary valve is open (when the compressor is started).

[0047] It should be noted that in this specification, descriptions of positions and directions such as up and down, left and right, front and rear, etc. are marked according to the drawings for convenience in order to avoid cumbersome description, and are not limited to refer to the state actually assembled in the compressor. position and direction.

[0048] Also, in each figure, gaps formed between components, spacing distances between compone...

no. 2 approach

[0080] Figure 5 ~ Figure 7 It is a vertical cross-sectional view respectively showing the second embodiment of the control valve for a variable displacement compressor according to the present invention, Figure 5 Indicates that the main valve is open and the auxiliary valve is closed (during normal control), Figure 6 Indicates that the main valve is closed and the auxiliary valve is closed (when the compressor starts transition), Figure 7 Indicates that the main valve is closed and the auxiliary valve is open (when the compressor is started).

[0081] The control valve 2 of the second embodiment is basically different from the control valve 1 of the above-mentioned first embodiment only in the structure of the valve main body and the main valve element among the valve elements. Therefore, components having the same functions as those in the first embodiment are given the same reference numerals and their detailed descriptions are omitted, and only the above-mentioned dif...

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Abstract

Provided is a control valve for variable-capacity compressor, with which it is possible to reduce the number of processing man hours and processing cost associated with components, the number of components, and the number of assembly man hours, and with which it is possible to ensure airtightness and adjustment of bellows mounting length, due to a simple structure while reducing the size of the components themselves. Also provided is a method for assembling same. A blocking member (65) that blocks an upper opening (33a) on the opposite side from the attracting element (32) in a cylindrical stator (33), is press-fitted to the upper opening (33a) and welded.

Description

technical field [0001] The present invention relates to a control valve for a variable capacity compressor used in an automobile air conditioner and an assembly method thereof. Background technique [0002] In the past, use such as Figure 9 The inclined plate type variable capacity compressor shown in the simple diagram is used as a compressor for automobile air conditioners. This swash plate type variable displacement compressor 100 has: a rotary shaft 101 driven to rotate by an on-vehicle engine, a swash plate 102 mounted on the rotary shaft 101, a crank chamber 104 provided with the swash plate 102, a 102 to reciprocate the piston 105, the discharge chamber 106 for discharging the refrigerant compressed by the piston 105, the suction chamber 107 for sucking the refrigerant, and the pressure Pc of the crank chamber 104 to the suction chamber 107 In-machine release passage (fixing hole) 108 etc. for release. [0003] On the other hand, in the control valve 1' used in the...

Claims

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Application Information

Patent Timeline
15 Mar 2019
Publication
CN109477472A
IPC
F04B27/18
CPC
F04B27/1804; F04B39/14; F04B2027/1827; F04B2027/1831; F04B2027/1854; F04B2027/1859; F04B2027/1877; F04B2027/1881
Inventors
久米义之; 浅野恒