公开(公告)号：US20180180047A1

公开(公告)日：2018-06-28

申请号：US15648575

申请日：2017-07-13

Applicant: Lennox Industries Inc.

Inventor： Shawket Ayub ,  Brandon Ullrich

IPC: F04C29/00 ,  F04C29/12 ,  F04C28/28 ,  F04C28/24 ,  H01H37/52 ,  H01F7/06

CPC classification number: F04C29/0021 ,  F04C23/008 ,  F04C28/06 ,  F04C28/24 ,  F04C28/28 ,  F04C29/12 ,  F04C2210/26 ,  F04C2240/40 ,  F04C2240/804 ,  F04C2240/811 ,  H01F7/06 ,  H01H37/52

Abstract: A high side compressor system includes a compressor housing, motor, and a compression chamber. The compression chamber is disposed within the compressor housing. An accumulator is fluidly coupled to the compressor housing via a pressure-equalization tube. A pressure-equalization valve is disposed in the pressure-equalization tube. The pressure-equalization valve closes access to the pressure-equalization tube responsive to an electrical current being applied to the pressure-equalization valve. The pressure-equalization valve is electrically coupled to a compression mechanism such that interruption of electrical current to the compression mechanism interrupts electrical current to the pressure-equalization valve thereby opening the pressure-equalization valve

公开(公告)号：US09964110B2

公开(公告)日：2018-05-08

申请号：US14359625

申请日：2012-11-22

Applicant: STERLING INDUSTRY CONSULT GMBH

Inventor： Heiner Kösters ,  Matthias Tamm ,  Daniel Schütze

IPC: F04C19/00 ,  F04C28/28 ,  F04C29/00 ,  F04C7/00

CPC classification number: F04C19/004 ,  F04C7/00 ,  F04C19/00 ,  F04C19/007 ,  F04C28/28 ,  F04C29/0057 ,  F04C2220/10 ,  F04C2240/56 ,  F04C2240/801 ,  F04C2270/165

Abstract: A liquid-ring vacuum pump comprises a pump casing and a shaft eccentrically mounted in the pump casing. An impeller and a rotor of a drive motor are connected to the shaft. A disk cam is arranged parallel to the impeller. A first main bearing for the shaft is arranged between the impeller and the rotor of the drive motor, on the plane of the disk cam. The impeller is arranged between the first main bearing and a second main bearing. The arrangement of the bearings prevents the shaft from bending, thus allowing the leakage gap between the impeller and the disk cam to be kept small.

公开(公告)号：US09890785B2

公开(公告)日：2018-02-13

申请号：US14894317

申请日：2014-01-29

Applicant: FUJITSU GENERAL LIMITED

Inventor： Junya Tanaka ,  Kenji Komine

IPC: F04C18/356 ,  F04C29/02 ,  F04C29/00 ,  F04C28/28 ,  F04C23/00

CPC classification number: F04C18/3564 ,  F04C23/008 ,  F04C28/28 ,  F04C29/0085 ,  F04C29/02 ,  F04C2280/02 ,  F05C2203/0886

Abstract: A rotary compressor includes: a vertically-positioned airtight compressor housing having an upper section including a discharge portion of a refrigerant, and a lower section including an inlet unit of the refrigerant and storing lubricant oil; a compressing unit, disposed in the lower section, compressing the refrigerant sucked in via the inlet unit and discharging the refrigerant from the discharge portion; a motor, disposed in the upper section, driving the compressing unit via a rotation shaft; and an accumulator attached to the compressor housing and connected to the inlet unit. Inside the accumulator and/or the compressor housing, silicon dioxide having a crystal structure containing a vacancy with a diameter equal to or less than a diameter of a water molecule or a composite including silicon dioxide having a crystal structure containing a vacancy with a diameter equal to or less than that of the water molecule is placed.

公开(公告)号：US09829233B2

公开(公告)日：2017-11-28

申请号：US14169183

申请日：2014-01-31

Applicant: Liebert Corporation

Inventor： Roger Noll ,  Lou Monnier ,  Zhiyong Lin ,  Daniel J. Schutte ,  Benedict J. Dolcich

IPC: F04B49/00 ,  F25B1/00 ,  F25B49/00 ,  F25B49/02 ,  F04C23/00 ,  F04C28/06 ,  F04C28/28 ,  F04C18/02 ,  F25B1/04 ,  F04C28/08

CPC classification number: F25B49/022 ,  F04C18/02 ,  F04C23/001 ,  F04C28/06 ,  F04C28/08 ,  F04C28/28 ,  F04C2270/06 ,  F04C2270/70 ,  F04C2270/80 ,  F25B1/04 ,  F25B49/027 ,  F25B2400/075 ,  F25B2600/0253 ,  F25B2600/111 ,  F25B2700/2106 ,  Y02B30/741 ,  Y02B30/743

Abstract: A method including: determining a cooling value; and comparing the cooling value to an activation point of a lead compressor. The lead compressor is in a tandem set of scroll compressors of a cooling system. The tandem set of compressors comprises a lag compressor. The method further includes: activating the lead compressor when the cooling value is greater than the activation point; activating the lag compressor subsequent to activating the lead compressor; and determining whether conditions exist including: an alarm associated with the lag compressor being generated, and the lead compressor being deactivated. The method further includes deactivating the lag compressor when at least one of the conditions exists in the cooling system.

公开(公告)号：US20170306955A1

公开(公告)日：2017-10-26

申请号：US15491051

申请日：2017-04-19

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu CHOI ,  Kangwook LEE ,  Cheolhwan KIM ,  Byeongchul LEE

IPC: F04C18/02 ,  F04C29/00 ,  F04C29/12

CPC classification number: F04C18/0269 ,  F04C18/0215 ,  F04C28/28 ,  F04C29/0085 ,  F04C29/12 ,  F04C2240/30 ,  F04C2240/60

Abstract: 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.

公开(公告)号：US09784274B2

公开(公告)日：2017-10-10

申请号：US15153922

申请日：2016-05-13

Applicant: Emerson Climate Technologies, Inc.

Inventor： Troy R. Brostrom ,  Mark Hiszem ,  Richard A. Miu ,  Jason M. Warner

IPC: F04B39/02 ,  F04C29/02 ,  F04C28/28 ,  F04C29/04 ,  F04C23/00 ,  G01F23/24 ,  F04C18/02 ,  F04C18/107 ,  F04C18/32 ,  F04B35/04 ,  F04B51/00 ,  F04C18/08

CPC classification number: F04B39/0207 ,  F04B35/04 ,  F04B39/023 ,  F04B39/0284 ,  F04B51/00 ,  F04B2201/0402 ,  F04B2201/0403 ,  F04C18/02 ,  F04C18/0207 ,  F04C18/082 ,  F04C18/107 ,  F04C18/32 ,  F04C23/008 ,  F04C28/28 ,  F04C29/021 ,  F04C29/04 ,  F04C2240/809 ,  F04C2240/81 ,  F04C2270/24 ,  F04C2270/86 ,  F25B2700/03 ,  G01F23/242 ,  G01F23/247 ,  G01F23/248

Abstract: A compressor may include a shell, a compression mechanism, first and second temperature sensors, and a control module. The shell may define a lubricant sump. The compression mechanism may be disposed within the shell and may be operable to compress a working fluid. The first temperature sensor may be at least partially disposed within the shell at a first position. The second temperature sensor may be at least partially disposed within the shell at a second position that is vertically higher than the first position. The control module may be in communication with the first and second temperature sensors and the pressure sensor and may determine whether a liquid level in the lubricant sump is below a predetermined level based on data received from the first and second temperature sensors.

公开(公告)号：US09762168B2

公开(公告)日：2017-09-12

申请号：US15096196

申请日：2016-04-11

Applicant: Emerson Climate Technologies, Inc.

Inventor： Hung M. Pham ,  Fadi M. Alsaleem

IPC: G01R31/34 ,  H02P25/04 ,  G01R31/02 ,  F04C28/28 ,  F04B35/04 ,  F04C29/00 ,  F04B49/06 ,  F04B49/10 ,  F25B49/02 ,  F04C18/02

CPC classification number: H02P25/04 ,  F04B35/04 ,  F04B49/06 ,  F04B49/10 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04C18/02 ,  F04C18/0215 ,  F04C28/28 ,  F04C29/0085 ,  F04C2240/808 ,  F04C2240/81 ,  F04C2270/03 ,  F04C2270/07 ,  F04C2270/19 ,  F04C2270/22 ,  F04C2270/60 ,  F04C2270/80 ,  F04C2270/86 ,  F04C2270/90 ,  F25B49/022 ,  G01R31/028 ,  G01R31/343

Abstract: A refrigeration system includes a compressor and a capacitor electrically coupled to the compressor. A method of operating the refrigeration system includes measuring voltage values based on alternating current power powering the compressor. The method includes measuring current values based on the alternating current power. The method includes determining, with a controller, a power factor value based on at least one of the voltage values and at least one of the current values. The method includes receiving a supply air temperature value from an air temperature sensor installed in the refrigeration system. The method includes receiving a return air temperature value from an air temperature sensor installed in the refrigeration system. The method includes determining a temperature split based on a difference between the return and supply air temperature values. The method includes determining a fault in the capacitor based on the power factor value and the temperature split.

公开(公告)号：US20170218965A1

公开(公告)日：2017-08-03

申请号：US15418326

申请日：2017-01-27

Applicant: ABB Technology Oy

Inventor： Juha Saukko ,  Markku Lyyjynen ,  Jukka Tolvanen

IPC: F04D27/00 ,  F04D17/10 ,  F04C29/00 ,  F04C28/08 ,  F04C28/28 ,  F04D25/06 ,  F04C18/16

CPC classification number: F04B49/065 ,  F04B41/02 ,  F04B49/022 ,  F04B2203/0207 ,  F04B2203/0208 ,  F04C28/06 ,  F04C28/08 ,  F04C28/24 ,  F04C28/28 ,  F04C2240/40 ,  F04C2270/015 ,  F04C2270/025 ,  F04C2270/035 ,  F04C2270/075 ,  F04C2270/095 ,  F04C2270/185 ,  F04D15/0066 ,  F04D15/0088 ,  F04D27/001 ,  F04D27/004

Abstract: The present disclosure describes a load/unload control method for a compressor system with a rotating compressor connected to a pressure vessel. In the method, the present operating state can be monitored on the basis of a monitored/estimated electrical quantity of the compressor system, The method comprises an identification phase and an operational phase. In the identification phase, the compressor is operated at a constant rotational speed to generate two known pressures to the pressure vessel. At least one electrical quantity is monitored, and values of the electrical quantity corresponding to the pressure limits are stored. In the operational phase, reaching of a pressure limit may then be detected by comparing the present value of the monitored electrical quantity to the stored values.

公开(公告)号：US09568000B2

公开(公告)日：2017-02-14

申请号：US13522922

申请日：2011-01-19

Applicant: Masahiro Yamada ,  Yasuhiro Murakami ,  Nobuo Takahashi

Inventor： Masahiro Yamada ,  Yasuhiro Murakami ,  Nobuo Takahashi

IPC: F04B49/06 ,  F04B49/02 ,  F04C23/00 ,  F04C28/28 ,  F04C29/02 ,  F04C18/02 ,  F04C29/12

CPC classification number: F04C18/0215 ,  F04B49/02 ,  F04B49/06 ,  F04B2203/021 ,  F04C23/008 ,  F04C28/28 ,  F04C29/026 ,  F04C29/028 ,  F04C29/12 ,  F04C2240/81 ,  F04C2270/19 ,  F04C2270/70 ,  F04C2270/86

Abstract: A compressor includes a casing, a compression mechanism, a drive shaft, a main frame, a motor, a flow path forming member, and a temperature measuring mechanism. The casing stores lubricating oil in its bottom portion. The main frame has the compression mechanism placed on it and supports the drive shaft in such a way that the drive shaft may freely rotate. The flow path forming member forms an oil flow path at a space adjacent an inner peripheral surface of the casing. The oil flow path carries a flow of lubricating oil, which lubricates sliding portions including the compression mechanism and the drive shaft. The temperature measuring mechanism is disposed outside the casing. The temperature measuring mechanism measures the temperature of a section of an outer peripheral surface of the casing adjacent the oil flow path.

Abstract translation: 压缩机包括壳体，压缩机构，驱动轴，主框架，马达，流路形成构件和温度测量机构。 套管将润滑油储存在其底部。 主框架具有放置在其上的压缩机构，并以驱动轴可以自由旋转的方式支撑驱动轴。 流路形成构件在与壳体的内周面相邻的空间形成油流路。 油流路承载润滑油的流动，其润滑包括压缩机构和驱动轴的滑动部分。 温度测量机构设置在外壳的外部。 温度测量机构测量与油流路相邻的外壳的外周面的一部分的温度。

公开(公告)号：US20160327044A1

公开(公告)日：2016-11-10

申请号：US15147072

申请日：2016-05-05

Applicant: MAN DIESEL & TURBO SE

Inventor： Tim Lehmann

IPC: F04C28/28 ,  F04C18/16

CPC classification number: F04C28/28 ,  F04C18/16 ,  F04C2240/605 ,  F04C2270/12

Abstract: A fluid energy machine, with a machine housing (10), and with at least one shaft (11) that is mounted in the machine housing (10), which is assigned at least one sensor (12), with the help of which vibrations of the respective shaft are detectable, with at least one mounting sleeve (13), which extends through a bore (14) in the machine housing (10), wherein on a first portion (15) of the respective mounting sleeve (13), which faces the shaft, a sensor (12) is mounted, wherein in the region of the first portion (15) of the respective mounting sleeve (13) an adjusting device (16) is formed in order to align the respective sensor (12) relative to the respective shaft (11), and wherein on a portion (17) of the respective mounting sleeve (13) facing away from the shaft (11) a fixing device (18) engages in order to fix and seal the respective mounting sleeve (13) on the machine housing (10).

Abstract translation: 一种流体能量机器，具有机器壳体（10），以及安装在机器壳体（10）中的至少一个轴（11），其被分配有至少一个传感器（12），借助于该振动 具有至少一个延伸穿过机器壳体（10）中的孔（14）的安装套筒（13）可检测，其中在相应的安装套筒（13）的第一部分（15）上， 其安装有传感器（12），其中在相应的安装套筒（13）的第一部分（15）的区域中形成调节装置（16）以便对准相应的传感器（12） 相对于相应的轴（11），并且其中在相对于所述安装套筒（13）的远离所述轴（11）的部分（17）上，固定装置（18）接合以便固定和密封相应的安装套 （13）在机壳（10）上。