流体機械のハウジング接合部のシール構造

    公开(公告)号:JP2017089681A

    公开(公告)日:2017-05-25

    申请号:JP2015216768

    申请日:2015-11-04

    Inventor: SAITO KENJI

    CPC classification number: F04B39/00 F04B39/12 F16J15/06

    Abstract: 【課題】圧縮機や膨張機などの流体機械のハウジング接合部のシール構造において、Oリングのねじれの発生及びこれに起因するシール性の低下を防止する。【解決手段】流体機械のハウジングを構成する第1ハウジング部材1と第2ハウジング部材2との接合部をシールする圧縮機のハウジング接合部のシール構造は、第1ハウジング部材1の端面11に形成されたリング溝14に装着され、第1ハウジング部材1と第2ハウジング部材2とが接合されることによってリング溝14の底面14aと第2ハウジング部材2の端面21との間で圧縮されるOリング3を含む。リング溝14は、逆台形状の断面形状を有し、装着されたOリング3又はリング溝14の底面14aと第2ハウジング部材2の端面21との間で圧縮されたOリング3が底面14aと底面14aの幅方向の両端部から立ち上がる一対の側面14b、14cとに当接するように形成されている。【選択図】図1

    電動圧縮機の支持装置
    2.
    发明专利

    公开(公告)号:JP2017089816A

    公开(公告)日:2017-05-25

    申请号:JP2015222878

    申请日:2015-11-13

    Abstract: 【課題】電動圧縮機から車両への振動伝達を抑制して車両の静寂性を維持する一方、電動圧縮機の所定以上の変位を抑制することのできる電動圧縮機の支持装置を提供することを目的とする。【解決手段】電動圧縮機10は、支持装置1を介して車両に取り付け固定される。支持装置1は、電動圧縮機10に固定される圧縮機側ブラケット30と、車両に固定される車両側ブラケット40と、これらの間に配置される複数の弾性部材20と、車両側ブラケット40に設けられ、複数の弾性部材20の少なくとも一つの損傷時に、電動圧縮機10と共に変位した圧縮機側ブラケット30に当接することにより、予め設定された許容変位を超える電動圧縮機10の変位を規制するガイドピン50と、を含む。【選択図】図1

    Scroll compressor
    4.
    发明授权

    公开(公告)号:US11933297B2

    公开(公告)日:2024-03-19

    申请号:US17437939

    申请日:2020-03-16

    Abstract: [Problem] A scroll compressor is provided which has improved workability when a back pressure chamber and a compression chamber are communicated with each other.
    [Solution] A scroll compressor 1 includes a back pressure chamber 39 formed in a back surface of a mirror plate 31 of a movable scroll 22 in the scroll compressor 1, and a communication hole 51 which is formed in the mirror plate 31 of the movable scroll 22 and communicates the back pressure chamber 39 and a compression chamber 34 with each other. The communication hole 51 is constituted of a large-diameter hole section 52 located on the back pressure chamber 33 side of the mirror plate 31 of the movable scroll 22, and a small-diameter hole section 53 which continues from the large-diameter hole section 52 to reach the compression chamber 34.

    SCROLL COMPRESSOR
    6.
    发明申请

    公开(公告)号:US20220170461A1

    公开(公告)日:2022-06-02

    申请号:US17437939

    申请日:2020-03-16

    Abstract: [Problem] A scroll compressor is provided which has improved workability when a back pressure chamber and a compression chamber are communicated with each other.
    [Solution] A scroll compressor 1 includes a back pressure chamber 39 formed in a back surface of a mirror plate 31 of a movable scroll 22 in the scroll compressor 1, and a communication hole 51 which is formed in the mirror plate 31 of the movable scroll 22 and communicates the back pressure chamber 39 and a compression chamber 3-1 with each other. The communication hole 51 is constituted of a large-diameter hole section 52 located on the back pressure chamber 33 side of the mirror plate 31 of the movable scroll 22, and a small-diameter hole section 53 which continues from the large-diameter hole section 52 to reach the compression chamber 34.

    Electric compressor
    7.
    发明授权

    公开(公告)号:US11349415B2

    公开(公告)日:2022-05-31

    申请号:US16961163

    申请日:2018-12-07

    Inventor: Junki Kawata

    Abstract: The present invention quickly stops rotation of an electric compressor while preventing damage to switching elements. An electric compressor 1 comprises a motor drive circuit 52 having multiple switching elements IGBT Q1 to Q6, a control unit 53 that controls driving of the multiple switching elements IGBT Q1 to Q6 and drives a motor 4, and a current detection unit 54 that detects a current flowing through the motor drive circuit 52. The control unit 53 performs stop control that stops rotation of the compression mechanism 3 by performing braking control that controls drive of predetermined switching elements IGBT (Q2, Q4, Q6 and the like) among the multiple switching elements IGBT Q1 to Q6. In the brake control, when the detected current value I is lower than the first threshold I1, the control unit 53 adjusts the drive pattern of the predetermined switching elements IGBT (Q2, Q4, Q6 and the like) in order to prevent the detected current value I from exceeding the second threshold I2 that is lower than the first threshold I1.

    SCROLL COMPRESSOR
    8.
    发明申请

    公开(公告)号:US20220136500A1

    公开(公告)日:2022-05-05

    申请号:US17438832

    申请日:2020-03-16

    Abstract: [Problem] A scroll compressor is provided which is capable of effectively reducing a pressure loss in a pathway extending from a discharge space to a discharge port.
    [Solution] The scroll compressor includes a discharge space 27 formed in a compressing mechanism cover 9 of a housing 11, a discharge hole 26 which is formed in a fixed scroll 21 and discharges a compressed refrigerant to the discharge space, a discharge port 51 which discharges the refrigerant to the outside of the housing, a relief passage 71 which communicates the discharge space and the discharge port with each other, and a differential pressure valve 74 which is provided in the relief passage and opens in accordance with a pressure difference between the discharge space and the discharge port. The relief passage opens in the discharge space above the discharge hole.

    SCROLL TYPE EXPANDER
    9.
    发明申请

    公开(公告)号:US20210254466A1

    公开(公告)日:2021-08-19

    申请号:US17055968

    申请日:2019-05-17

    Inventor: Shinji NAKAMURA

    Abstract: A housing of a scroll type expansion machine includes: a suction port formed at a position on the opposite side to a drive shaft with a fixed scroll interposed therebetween; a discharge port formed on the side of a drive-side bearing closer to the tip end of the drive shaft; a low pressure chamber formed on the outer side of an orbiting-side scroll portion when viewed from the axial direction of the drive shaft; and a tip end-side low-pressure space being a space in which a sealing member is disposed, and has: a partition wall partitioning the tip end-side low-pressure space and the low-pressure chamber from each other; and a communication space communicating the tip end-side low-pressure space with the low-pressure chamber.

    Electromagnetic clutch and compressor provided with same

    公开(公告)号:US10968963B2

    公开(公告)日:2021-04-06

    申请号:US16349134

    申请日:2017-10-10

    Inventor: Yuki Sakamoto

    Abstract: Provided is an electromagnetic clutch capable of shortening, even in a low temperature atmosphere, the fuse reaction time from when a rotating shaft is locked, while preventing or suppressing malfunction of the thermal fuse. An electromagnetic clutch 1 is equipped with a rotor 2, an armature 3, an electromagnetic coil unit 4, a thermal fuse 5, and a thermally actuated switch 6. The thermally actuated switch 6 is connected in series to an electromagnetic coil 41 of the electromagnetic coil unit 4 along with the thermal fuse 5. When a temperature of the thermally actuated switch 6 exceeds a switching temperature (predetermined temperature) Ts, the thermally actuated switch 6 is displaced in an electric power supply OFF direction, and thereafter, it is displaced in an electric power supply ON direction due to a reduction in temperature. The thermally actuated switch 6 turns ON/OFF the electric power supply to the electromagnetic coil 41 such that the thermal fuse vicinity temperature T1 does not exceed the operational temperature Tf of the thermal fuse 5 due to self-heating of the electromagnetic coil 41 itself generated by the electric power supplied to the electromagnetic coil 41, thereby preventing malfunction of the thermal fuse 5 due to self-heating of the electromagnetic coil 41.

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