公开(公告)号：US12000398B2

公开(公告)日：2024-06-04

申请号：US17791180

申请日：2021-01-07

Applicant: Johnson Controls Tyco IP Holdings LLP

Inventor： Paul Nemit, Jr. ,  Angela Marie Comstock ,  Franklin Aaron Montejo

IPC: F04C18/16 ,  F04C28/12 ,  F25B41/39

CPC classification number: F04C18/16 ,  F04C28/12 ,  F25B41/39 ,  F25B2339/047 ,  F25B2400/13 ,  F25B2600/0253

Abstract: A volume ratio control system for a compressor includes a chamber formed within a housing of the compressor, a piston disposed within the chamber, where the piston is configured to separate the chamber into at least a first portion fluidly coupled to a low pressure side of the compressor and a second portion fluidly coupled to a high pressure side of the compressor, and a biasing device disposed within the chamber, where the biasing device is configured to adjust a position of the piston in response to a pressure differential between the low pressure side of the compressor and the high pressure side of the compressor falling below a threshold value.

公开(公告)号：US11920594B2

公开(公告)日：2024-03-05

申请号：US17277288

申请日：2018-12-26

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Ziwen Xing ,  Minglong Zhou ,  Wenqing Chen ,  Chuang Wang ,  Zhilong He

IPC: F04C29/00 ,  F04C18/16 ,  F04C28/12 ,  F16K3/26

CPC classification number: F04C29/0035 ,  F04C18/16 ,  F04C28/12 ,  F16K3/26 ,  F04C2250/102

Abstract: A screw compressor slide valve with gas pulsation attenuation function includes valve walls and internal through holes. A screw compressor includes the screw compressor slide valve. A part of exhausted gas of the screw compressor is directly discharged from an exhaust port to an exhaust chamber to form a main exhaust flow channel; another part of the exhausted gas is discharged from the exhaust port into the exhaust chamber after being delayed by the internal through holes, which forms a branched exhaust flow channel. Since the branched exhaust flow channel is longer than the main exhaust flow channel, when the gas pulsation in the branched exhaust flow channel lags behind that in the main exhaust flow channel by 180-degree in phase, two gas pulsations in the two flow channels are offset due to opposite gas pulsation phases, which attenuates the gas pulsation, thereby suppressing induced vibration and noise.

公开(公告)号：US11852145B2

公开(公告)日：2023-12-26

申请号：US16728570

申请日：2019-12-27

Applicant: Trane International Inc.

Inventor： Jay H. Johnson ,  John R. Sauls ,  Gordon Powell ,  Daniel R. Crum

IPC: F04C29/12 ,  F04C28/14 ,  F04C28/12 ,  F04C28/28 ,  F04C28/24 ,  F04C28/08 ,  F04C18/16 ,  F25B1/047 ,  F25B49/02

CPC classification number: F04C29/124 ,  F04C18/16 ,  F04C28/08 ,  F04C28/12 ,  F04C28/14 ,  F04C28/24 ,  F04C28/28 ,  F25B1/047 ,  F25B49/022 ,  F04C2240/403 ,  F04C2240/81 ,  F04C2270/025 ,  F04C2270/585 ,  F25B2600/0253

Abstract: Systems and methods are used to control operation of a rotary compressor of a refrigeration system to improve efficiency by varying the volume ratio and the speed of the compressor in response to current operating and load conditions. The volume of the axial and/or radial discharge ports of the compressor can be varied to provide a volume ratio corresponding to operating conditions. In addition, permanent magnet motors and/or control of rotor tip speed can be employed for further efficiency gains.

公开(公告)号：US20180045201A1

公开(公告)日：2018-02-15

申请号：US15518435

申请日：2016-02-02

Applicant: Guangdong Meizhi Compressor Co., Ltd.

Inventor： Bin GAO ,  Hualong WU ,  Yangbo YU

IPC: F04C28/12

CPC classification number: F04C28/12 ,  F04C18/3564 ,  F04C23/001 ,  F04C23/008 ,  F04C28/065

Abstract: The present disclosure relates to a variable-capacity compressor (100) and a refrigeration device (200). The variable-capacity compressor (100) comprises a housing (1), a compression mechanism, two first suction conduits (61) and a variable-capacity valve (3); the compression mechanism comprises two bearings (21, 22) and a cylinder assembly, the cylinder assembly comprises a first cylinder (23) and a second cylinder (24), at least one of the first cylinder (23) and the second cylinder (24) is configured as a variable-capacity cylinder, and a compression chamber (28) and a suction port (A) is formed in the variable-capacity cylinder; the variable-capacity valve (3) is disposed in the compression mechanism and configured to be movable between a communication position and an isolation position, wherein the variable-capacity cylinder operates when the variable-capacity valve (3) is located in the communication position, and the variable-capacity cylinder is unloaded when the variable-capacity valve (3) is located the isolation position.

公开(公告)号：US20180017059A1

公开(公告)日：2018-01-18

申请号：US15648565

申请日：2017-07-13

Applicant: TRANE INTERNATIONAL INC.

Inventor： Jay H. JOHNSON

IPC: F04C28/12 ,  F04C18/16 ,  F25B40/02 ,  F25B49/02 ,  F04C18/107 ,  F04C29/12 ,  F04C18/02

CPC classification number: F04C28/12 ,  F04C18/0207 ,  F04C18/107 ,  F04C18/16 ,  F04C29/12 ,  F04C2240/30 ,  F04C2270/215 ,  F25B1/00 ,  F25B1/047 ,  F25B31/006 ,  F25B40/02 ,  F25B49/02 ,  F25B49/022 ,  F25B2400/13 ,  F25B2600/2507 ,  F25B2600/2509

Abstract: A compressor includes a bore, a rotor disposed within the bore, a compressor inlet, and a compressor outlet. The compressor further includes a compression chamber defined between the bore and the rotor, wherein a volume of the compression chamber gradually reduces from the compressor inlet to the compressor outlet. The compressor includes an economizer. The economizer is fluidically connected to the compression chamber. The economizer is configured to inject a working fluid into the compression chamber at an injection position. The injection position is changeable according to a working condition of the compressor.

公开(公告)号：US08920149B2

公开(公告)日：2014-12-30

申请号：US13635560

申请日：2011-03-02

Applicant: Mohammod Anwar Hossain ,  Hiromichi Ueno ,  Masanori Masuda

Inventor： Mohammod Anwar Hossain ,  Hiromichi Ueno ,  Masanori Masuda

IPC: F03C4/00 ,  F04C2/00 ,  F04C18/00 ,  F04C18/52 ,  F04C28/06 ,  F04C28/12 ,  F04C29/12

CPC classification number: F04C18/52 ,  F04C28/06 ,  F04C28/12 ,  F04C29/126 ,  F04C2270/72

Abstract: A screw compressor includes a screw rotor, a gate rotor, a drive mechanism to rotate the screw rotor, a cylinder, a discharge port and an adjustment mechanism. The screw rotor has an outer periphery with a helical groove engaged with radially arranged gates of the gate rotor. First and second axial ends of the screw rotor form suction and discharge sides, respectively. The cylinder accommodates the screw rotor to define a compression chamber in the helical groove. Fluid in the compression chamber flows through the discharge port toward the discharge side of the screw rotor. The adjustment mechanism is configured to adjust a compression ratio of the compression chamber within a predetermined range. The adjustment mechanism adjusts the compression ratio to a minimum compression ratio immediately before or when operation of the adjustment mechanism is stopped.

Abstract translation: 螺杆式压缩机包括螺杆转子，闸转子，旋转螺杆转子的驱动机构，气缸，排出口和调节机构。 螺杆转子具有外周边，其具有与门转子的径向布置的闸门接合的螺旋槽。 螺杆转子的第一和第二轴向端分别形成吸入和排出侧面。 气缸容纳螺旋转子以在螺旋槽中限定压缩室。 压缩室中的流体流过排出口朝向螺杆转子的排出侧。 调整机构构成为将压缩室的压缩比调整到规定范围内。 调整机构在调整机构停止运行之前或之后将压缩比调整为最小压缩比。

公开(公告)号：US08888466B2

公开(公告)日：2014-11-18

申请号：US13454308

申请日：2012-04-24

Applicant: Paul Nemit, Jr.

Inventor： Paul Nemit, Jr.

IPC: F04C28/12 ,  F04C18/16

CPC classification number: F04C18/16 ,  F04C28/12

Abstract: A compressor including a compression mechanism configured and positioned to receive vapor from an intake passage and provide compressed vapor to a discharge passage. An opening is positioned in the compression mechanism in fluid communication with the discharge passage. A valve has an aperture formed therein, the aperture configured and positioned in fluid communication with a passageway to provide a path for a pressurized vapor flow to a first chamber and a first piston without mixing with vapor in the discharge passage. A second chamber is in fluid communication with a second piston and the discharge passage, the first piston and the second piston of the valve configured to move together. First piston and second piston movement are controllable in response to predetermined conditions to maintain the magnitude of pressure of the compression mechanism immediately upstream of the opening at substantially the same pressure magnitude at the discharge passage.

Abstract translation: 一种压缩机，包括压缩机构，所述压缩机构构造和定位成从进气通道接收蒸气并将压缩蒸汽提供到排出通道。 开口位于与排出通道流体连通的压缩机构中。 阀具有形成在其中的孔，孔被构造和定位成与通道流体连通，以提供用于加压蒸汽流到第一室和第一活塞的路径，而不与排放通道中的蒸气混合。 第二室与第二活塞流体连通，并且阀的排出通道，第一活塞和第二活塞构造成一起移动。 第一活塞和第二活塞运动可响应于预定条件而被控制，以将压缩机构的压力的大小紧紧地保持在开口的上游处，在排放通道处以基本相同的压力大小。

公开(公告)号：US08794027B2

公开(公告)日：2014-08-05

申请号：US12663908

申请日：2008-06-11

Applicant: Nozomi Gotou ,  Harunori Miyamura ,  Hideyuki Gotou

Inventor： Nozomi Gotou ,  Harunori Miyamura ,  Hideyuki Gotou

IPC: F25B31/00 ,  F04B49/16 ,  F04B49/20

CPC classification number: F04C18/16 ,  F04C18/52 ,  F04C28/12 ,  F04C28/26

Abstract: A compressor includes a casing, a screw rotor, a slide member with at least one economizer port, and a control unit controlling a position of the slide member along the axis of the screw rotor to position the at least one economizer port based on the rotating speed of the screw rotor to advance the timing of opening of the at least one economizer port. The controller controls the position of the slide member along the axis such that the slide member moves upstream toward a suction side of the compressor when the rotating speed of the screw rotor increases, and downstream toward a discharge side of the compressor when the rotating speed of the screw rotor decreases. A refrigerating apparatus includes the compressor, a condenser, a heat exchanger, an expansion unit, and an evaporator, sequentially connected, and has an economizer line.

Abstract translation: 压缩机包括壳体，螺杆转子，具有至少一个节能器端口的滑动构件和控制单元，其控制滑动构件沿着螺杆转子的轴线的位置，以基于旋转的位置来定位至少一个节能器端口 螺杆转子的速度以促进至少一个节能器口的打开定时。 控制器沿着轴线控制滑动构件的位置，使得当螺杆转子的转速增加时，滑动构件向压缩机的吸入侧向上游移动，并且当压缩机的旋转速度为 螺杆转子减小。 制冷装置包括压缩机，冷凝器，热交换器，膨胀单元和蒸发器，依次连接，并具有节能器管路。

公开(公告)号：US20140083130A1

公开(公告)日：2014-03-27

申请号：US14032753

申请日：2013-09-20

Applicant: Vilter Manufacturing LLC

Inventor： Jean-Louis Picouet

IPC: F04C28/12 ,  F04C18/16

CPC classification number: F04C28/12 ,  F04C18/16 ,  F04C18/52 ,  F04C29/0007

Abstract: Disclosed herein is a single screw gas compressor having a housing including a cylindrical bore, a primary and secondary gate rotors mounted for rotation in the housing, each gate rotor having a plurality of gear teeth, a main rotor rotatably mounted in the bore and having a plurality of grooves and a plurality of threads, wherein each groove meshingly engages at least one of the gear teeth from each gate rotor, a primary economizer port in communication with the cylindrical bore, and a secondary economizer port in communication with the cylindrical bore.

Abstract translation: 本文公开了一种单螺杆气体压缩机，其具有壳体，该壳体包括圆柱形孔，安装成用于在壳体中旋转的主和第二闸转子，每个闸转子具有多个齿轮齿，主转子可旋转地安装在孔中并具有 多个槽和多个螺纹，其中每个凹槽与每个闸转子啮合啮合齿轮齿中的至少一个，与圆柱孔连通的主节能器口和与该圆柱孔连通的二级节能器口。

公开(公告)号：US20130272911A1

公开(公告)日：2013-10-17

申请号：US13496087

申请日：2011-05-16

Applicant: Yan Tang

Inventor： Yan Tang

IPC: F04C18/00

CPC classification number: F04C18/00 ,  F04C18/16 ,  F04C28/12

Abstract: A screw compressor includes a casing, a screw, an air entry, an air outlet, a slide valve with a flexible volume ratio, and first and second air cylinders. The slide valve is disposed between the first and second air cylinders and includes a slide valve main body. Two ends of the slide valve seal the first and second air cylinders. The first air cylinder is connected to the air outlet of the compressor through a first connection pipe, and the second air cylinder is connected to a last closed spiral flute through a second connection pipe. The slide valve searches for balance under the driving of pressures in the first and second air cylinders. The screw compressor having a slide valve with a flexible volume ratio can enable the volume ratio of the compressor to be automatically adjusted to an optimal state.

Abstract translation: 螺杆式压缩机包括壳体，螺杆，空气入口，出气口，具有柔性体积比的滑阀，以及第一和第二气缸。 滑阀设置在第一和第二气缸之间，并且包括滑阀主体。 滑阀的两端密封第一和第二气缸。 第一气缸通过第一连接管连接到压缩机的出风口，第二气缸通过第二连接管连接到最后一个闭合的螺旋槽。 滑阀在第一和第二气缸内的压力驱动下搜索平衡。 具有柔性体积比的滑阀的螺杆式压缩机能够使压缩机的体积比自动调整到最佳状态。