Variable displacement type swash plate compressor
a compressor and variable displacement technology, applied in the direction of machines/engines, pumps, positive displacement liquid engines, etc., can solve the problems of compressor displacement, compressor displacement, and difficulty in increasing the inclination angle,
Inactive Publication Date: 2017-09-28
TOYOTA IND CORP
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- Description
- Claims
- Application Information
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Benefits of technology
The present invention provides a variable displacement type swash plate compressor with a housing, swash plate, link mechanism, pistons, partition member, and control mechanism. The compressor allows for changing the inclination angle of the swash plate to change the stroke length of the pistons and to improve the performance of the compressor. The compressor includes a control pressure chamber and two seal members for sealing between the control pressure chamber and the swash plate chamber and between the drive shaft and the movable member. The clearance formed between the partition member and the movable member is greater at the minimum inclination angle of the swash plate and the clearance formed between the drive shaft and the movable member is greater at the maximum inclination angle position. The technical effects of the invention include improved performance, efficiency, and control of the swash plate inclination angle.
Problems solved by technology
Such resistance makes difficult the sliding movement of the movable member thereby to cause difficulty in increasing the inclination angle of the swash plate and hence the displacement of the compressor.
Therefore, controlling the displacement of the compressor may become complicated.
Method used
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Embodiment Construction
[0026]The following will describe a variable displacement type swash plate compressor (hereinafter simply referred to as compressor) according to various embodiments of the present invention with reference to the accompanying drawings. The compressor of the embodiments is mounted on a vehicle and forms a part of a refrigeration circuit of a vehicle air conditioner.
[0027]Referring to FIGS. 1 and 2, there is shown a compressor according to a first embodiment of the present invention. The compressor includes a housing 1, a drive shaft 3, a swash plate 5, a link mechanism 7, a plurality of pistons 9, a plurality of pairs of shoes 11a, 11b and an actuator 13. As shown in FIG. 3, the compressor further includes a control mechanism 15.
[0028]As shown in FIGS. 1 and 2, the housing 1 includes a front housing member 17, a rear housing member 19, a first cylinder block 21, a second cylinder clock 23, a first valve forming plate 39 and a second valve forming plate 41. In the compressor according...
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A variable displacement type swash plate compressor includes a housing having therein a swash plate chamber and a plurality of cylinder bores, a drive shaft, a swash plate, a link mechanism, and a plurality of the pistons. The compressor further includes a partition member, a movable member, and a control pressure chamber, and a control mechanism. First and second seal members are disposed between the partition member and the movable member and between the drive shaft and the movable member, respectively, and are elastically deformed to provide sealing between the control pressure chamber and the swash plate chamber. At least one of a clearance formed between the partition member and the movable member and a clearance formed between the drive shaft and the movable member when the swash plate is at its minimum inclination angle is greater than when the swash plate at a maximum inclination angle position.
Description
BACKGROUND OF THE INVENTION[0001]The present invention relates to a variable displacement type swash plate compressor.[0002]Japanese Patent Application Publication H05-172052 discloses a variable displacement type swash plate compressor (hereinafter simply referred to as compressor) which is shown in FIGS. 1 and 3. The compressor includes a housing, a drive shaft, a swash plate, a link mechanism, a plurality of pistons, a movable member and a control pressure chamber and a control mechanism. The housing has therein a plurality of cylinder bores, a swash plate chamber and a pressure control chamber. The housing further has therein a center hole that is connected to the swash plate chamber and the pressure control chamber.[0003]The drive shaft is rotatably supported in the housing. The swash plate is rotatable with the rotation of the drive shaft in the swash plate chamber. The link mechanism is disposed between the drive shaft and the swash plate and permits changing of an inclinatio...
Claims
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IPC IPC(8): F04B27/18F04B27/12F04B27/10
CPCF04B27/18F04B27/1072F04B27/0878F04B27/0891F04B27/12F04B27/1036F04B27/1054F04B27/1804
Inventor SUZUKI, TAKAHIROYAMASHITA, HIDEHARUNISHII, KEIYAMAMOTO, SHINYA
Owner TOYOTA IND CORP