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148 条记录 (耗时 0.019 秒)

    SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
    4.
    发明申请
    SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS 有权

    公开(公告)号：US20220154719A1

    公开(公告)日：2022-05-19

    申请号：US17602816

    申请日：2019-06-28

    申请人： Mitsubishi Electric Corporation

    发明人： Tetsuro HIRAMI ,  Tomokazu MATSUI ,  Yuji TAKAMURA

    IPC分类号： F04C29/02 ,  F25B1/04 ,  F04C18/02 ,  F04C18/10

    摘要： A scroll compressor includes an orbiting bedplate. The orbiting bedplate has: an oil passage through which oil supplied from an oil supply passage flows outward in a radial direction of the orbiting bedplate; a lap-side oil supply hole that causes the oil passage to communicate with a lap-formation surface of the orbiting lap at which the orbiting lap is formed; and a thrust-surface-side oil supply hole that causes the oil passage to communicate with a thrust surface of the orbiting bedplate that is opposite to the lap-formation surface of the orbiting bedplate. In the oil passage, an opening and closing mechanism is provided. The opening and closing mechanism closes the thrust-surface-side oil supply hole when the pressure of oil that is drawn from an oil sump by an oil pump and supplied into the oil passage is low, and opens the thrust-surface-side oil supply hole when the pressure of the oil is high.

    Pumping unit and method for controlling such a pumping unit
    5.
    发明授权
    Pumping unit and method for controlling such a pumping unit 有权

    公开(公告)号：US11204036B2

    公开(公告)日：2021-12-21

    申请号：US14382810

    申请日：2013-03-05

    申请人： Ateliers Busch SA

    发明人： Paul Alers

    IPC分类号： F04C29/04 ,  F04C18/10 ,  F04C28/24 ,  F04C18/16 ,  F04B37/14 ,  F04C28/02 ,  F04C23/00 ,  F04C25/02 ,  F04B41/06 ,  F04B37/02 ,  F04C18/12 ,  F04C18/344

    摘要： A pumping installation includes at least one first positive-displacement machine and one second positive-displacement machine, as well as a control module, in which installation a gas is evacuated from an enclosed volume by means of the first positive-displacement machine and/or the second positive-displacement machine. The pumping installation includes at least one control valve controlled by the control module and a pressure sensor for sensing the value of the pressure at the outlet of the first positive-displacement machine and/or a temperature sensor for sensing the value of the temperature at the outlet of the first positive-displacement machine in order to control the flow of gas between the enclosed volume and the outlet of the pumping installation.

    Scroll compressor having wrap with an offset portion
    6.
    发明授权
    Scroll compressor having wrap with an offset portion 有权

    公开(公告)号：US10648470B2

    公开(公告)日：2020-05-12

    申请号：US15491051

    申请日：2017-04-19

    申请人： LG ELECTRONICS INC.

    发明人： Yongkyu Choi ,  Kangwook Lee ,  Cheolhwan Kim ,  Byeongchul Lee

    IPC分类号： F04C18/02 ,  F04C18/10 ,  F01C1/02 ,  F04C28/28 ,  F04C29/00 ,  F04C29/12

    摘要： A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.

    GEROTOR APPARATUS
    7.
    发明申请
    GEROTOR APPARATUS 审中-公开

    公开(公告)号：US20180347362A1

    公开(公告)日：2018-12-06

    申请号：US15614106

    申请日：2017-06-05

    申请人： THE TEXAS A&M UNIVERSITY SYSTEM ,  STARROTOR CORPORATION

    发明人： Mark T. Holtzapple ,  George A. Rabroker ,  Michael K. Ross

    IPC分类号： F01C1/10 ,  F01C21/10 ,  F01C21/08 ,  F04C18/10

    摘要： According to one embodiment of the invention, a gerotor apparatus includes a first gerotor, a second gerotor, and a synchronizing system operable to synchronize a rotation of the first gerotor with a rotation of the second gerotor. The synchronizing system includes a cam plate coupled to the first gerotor, wherein the cam plate includes a plurality of cams, and an alignment plate coupled to the second gerotor. The alignment plate includes at least one alignment member, wherein the plurality of cams and the at least one alignment member interact to synchronize a rotation of the first gerotor with a rotation of the second gerotor.

    Permanent magnet motor, refrigeration compressor and air conditioning unit
    8.
    发明授权
    Permanent magnet motor, refrigeration compressor and air conditioning unit 有权

    公开(公告)号：US10103586B2

    公开(公告)日：2018-10-16

    申请号：US14912032

    申请日：2014-08-01

    申请人： Gree Electric Appliances, Inc. of Zhuhai

    发明人： Zhao Fan ,  Yabin Ding ,  Ying Chen ,  Huaican Liu

    IPC分类号： H02K1/20 ,  F04C18/10 ,  F04D25/06 ,  F25B31/00 ,  F25B31/02

    摘要： A stator and a rotor are mounted inside a case of the permanent magnet motor, and separate the inner cavity of the case into a first inner cavity and a second inner cavity. Axial ventilation holes in communication with the first inner cavity and with the second inner cavity, are disposed in teeth of a stator core of the stator, and each axial ventilation hole is a taper hole extending in a height direction of each tooth. The width of one end of the axial ventilation hole, which is close to a head of the tooth, is greater than the width of the other end of the axial ventilation hole, which is close to a root of the tooth. The taper holes enable fluid to fully carry out exchange heat at the teeth where heat is generated most intensively.

    Gear pump bearing dam
    9.
    发明授权
    Gear pump bearing dam 有权

    公开(公告)号：US09932980B2

    公开(公告)日：2018-04-03

    申请号：US15052362

    申请日：2016-02-24

    申请人： Woodward, Inc.

    发明人： Adam F. Czerwonka

    IPC分类号： F01C21/00 ,  F03C2/00 ,  F03C4/00 ,  F04C2/08 ,  F04C18/10 ,  F04C18/08 ,  F04C2/18

    CPC分类号： F04C2/088 ,  F04C2/084 ,  F04C2/086 ,  F04C2/18 ,  F04C18/084 ,  F04C18/088 ,  F04C18/10 ,  F04C2240/56

    摘要： The subject matter of this specification can be embodied in, among other things, a method that includes a gear pump includes gears having a gear root diameter and teeth having an addendum and pressure angle. A housing includes a fluid inlet and discharge, bearings configured to position the gear teeth in intermeshing contact across a fluid dam. The fluid dam includes a first face arranged at an angle to a split line, spaced apart from a center line at the split line a first distance towards the inlet, and extending from the first gear root diameter away from the center line to the first gear root diameter, and a second face arranged approximately perpendicular to the split line, spaced apart from the center line at the split line a second distance towards the outlet, and extending between the first gear root diameter and the second gear root diameter.