公开(公告)号：US11022119B2

公开(公告)日：2021-06-01

申请号：US16147920

申请日：2018-10-01

Applicant: Emerson Climate Technologies, Inc.

Inventor： Michael M. Perevozchikov ,  Kirill M. Ignatiev ,  Roy J. Doepker

IPC: F04C28/16 ,  F04C18/02 ,  F04C28/24 ,  F04C23/00 ,  F01C21/00

Abstract: A compressor may include a shell assembly, first and second scrolls, and a valve assembly. The shell assembly may define a discharge chamber. The first scroll may be disposed within the discharge chamber and may include a first end plate and a first spiral wrap. The first end plate may include a discharge passage in communication with the discharge chamber. The second scroll may be disposed within the discharge chamber and may include a second end plate and a second spiral wrap. The first and second spiral wraps define fluid pockets therebetween. The second end plate may include a port selectively communicating with one of the fluid pockets. The valve assembly may be mounted to the second scroll and may include a valve member that is movable between open and closed positions to allow and restrict communication between the port and the discharge chamber.

公开(公告)号：US10982674B2

公开(公告)日：2021-04-20

申请号：US16292742

申请日：2019-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Minjae Kim

IPC: F04C28/06 ,  F04C28/26 ,  F04C18/02 ,  F04C29/00 ,  F04C29/06 ,  F04C29/12 ,  F04C28/16 ,  F04C28/18 ,  F04C28/24 ,  F04C23/00

Abstract: A scroll compressor may include an orbiting scroll; a non-orbiting scroll engaged with the orbiting scroll to form a pair of compression chambers between the orbiting scroll and the non-orbiting scroll; a back pressure chamber assembly coupled to the non-orbiting scroll to form a back pressure chamber to support the non-orbiting scroll toward the orbiting scroll; a first back pressure passage that connects a first intermediate pressure chamber in the compression chamber and the back pressure chamber; a second back pressure passage that connects a second intermediate pressure chamber having a higher pressure than the first intermediate pressure chamber and the back pressure chamber; and a back pressure control valve configured to selectively open and close the first back pressure passage and the second back pressure passage according to an operation mode. The back pressure control valve moves to a first position at which the first back pressure passage is open and the second back pressure passage is closed in a power operation, and moves to a second position at which the first back pressure passage is closed and the second back pressure passage is open in a saving operation.

公开(公告)号：US10451064B2

公开(公告)日：2019-10-22

申请号：US15233253

申请日：2016-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-Hoon Park ,  Nam Kyu Cho ,  Yang Sun Kim

IPC: F04C18/02 ,  F04C28/16 ,  F04C23/00

Abstract: A compressor includes a discharge guide provided to communicate a discharge port and a bypass port to a discharge cover so that refrigerant discharged from the discharge port and the bypass port is guided to the discharge cover and a middle-pressure chamber formed by the fixed scroll, the back-pressure cover, and the discharge guide. The compressor according to the embodiments guarantees the space in which the bypass valve can be installed by a discharge guide mounted to a discharge portion of the fixed scroll, and at the same time forms the middle pressure portion, resulting in efficiency improvement of the compressor. The compressor according to the embodiments reduces noise and vibration generated from the discharge portion of the fixed scroll by the discharge guide.

公开(公告)号：US10428819B2

公开(公告)日：2019-10-01

申请号：US15390221

申请日：2016-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Honggyun Jin ,  Sangwoo Joo

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C28/26 ,  F04C18/02 ,  F04C28/18 ,  F04C29/00 ,  F04C29/12 ,  F04C23/00 ,  F04C28/16 ,  F04C28/24

Abstract: A scroll compressor according to the present invention includes a casing, an orbiting member provided within the casing and performing an orbiting motion, a non-orbiting member forming a compression chamber together with the orbiting member, the compression chamber having a suction chamber, an intermediate pressure chamber and a discharge chamber, a communication passage configured to bypass a refrigerant of the compression chamber into the casing, an opening/closing valve assembly configured to open and close the communication passage, and a switching valve assembly configured to operate the opening/closing valve assembly, the switching valve assembly being provided outside the casing and connected to the opening/closing valve assembly, whereby an installation of the bypass hole can result in prevention of over-compression and an installation of a control valve for varying a capacity outside the casing can result in reduction of costs for the control valve.

公开(公告)号：US20180245595A1

公开(公告)日：2018-08-30

申请号：US15758253

申请日：2016-09-14

Applicant: TRANE INTERNATIONAL INC.

Inventor： Eric S. Mlsna

IPC: F04C29/12 ,  F04C18/02 ,  F04C28/16 ,  F25B1/04

CPC classification number: F04C29/12 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/16 ,  F04C2230/85 ,  F04C2240/10 ,  F25B1/04 ,  F25B2400/13 ,  F25B2600/0262

Abstract: An intermediate discharge port in a scroll compressor and a method for controlling part-load efficiency of a scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scroll member forming a compression chamber; a discharge port for receiving a compressed fluid; and an intermediate discharge port fluidly connected between the compression chamber and the discharge port, the intermediate discharge port including a sealing member, fluid flow being prevented between the compression chamber and the discharge port through the intermediate discharge port when in a flow-blocked state, and fluid flow being enabled between the compression chamber and the discharge port through the intermediate discharge port when in a flow-permitted state.

公开(公告)号：US20170314558A1

公开(公告)日：2017-11-02

申请号：US15651471

申请日：2017-07-17

Applicant: Emerson Climate Technologies, Inc.

Inventor： Dennis D. PAX ,  Stephen Barry TUMMINO ,  Troy R. BROSTROM ,  Anthony Joseph DAHLINGHAUS ,  Brian R. BUTLER ,  Hua XU ,  Mindy LANZER

IPC: F04C18/02 ,  F04C28/16 ,  F04C27/00 ,  F04C23/00

CPC classification number: F04C18/0215 ,  F04C18/0261 ,  F04C23/008 ,  F04C27/005 ,  F04C28/16 ,  F04C28/24 ,  F04C28/26 ,  F04C2240/30

Abstract: A compressor may include first and second scrolls, a seal assembly and a valve ring. The first scroll may include a first end plate having a discharge passage, a modulation port, and a biasing passage. The modulation port may be in communication with a first pocket formed between spiral wraps of the first and second scrolls. The biasing passage may be in communication with a second pocket formed between spiral wraps of the first and second scrolls. The modulation valve ring is axially displaceable relative to the seal assembly and the first scroll between first and second positions. The valve ring may abut an end plate of the first scroll and close the modulation port when in the first position. The valve ring may abut an axially-facing surface of the seal assembly and is spaced apart from the end plate to open the modulation port when in the second position.

公开(公告)号：US20050019178A1

公开(公告)日：2005-01-27

申请号：US10832379

申请日：2004-04-27

Applicant: Dong Shin ,  Cheol Kim

Inventor： Dong Shin ,  Cheol Kim

IPC: F04C18/02 ,  F04C28/16 ,  F04B49/00 ,  F04B17/00

CPC classification number: F04C28/16 ,  F04C18/0215

Abstract: Disclosed is a variable capacity scroll compressor in which a high-pressure fluid within a thermodynamic cycle is introduced into the inside of the compressor to increase the compression volume and also the fluid inhaled/exhausted from the compressor allows the fluid being compressed to be bypassed in multi-stages, thereby varying the capacity of the compression fluid.

Abstract translation: 公开了一种可变容量涡旋压缩机，其中热力循环内的高压流体被引入压缩机的内部以增加压缩体积，并且从压缩机吸入/排出的流体允许被压缩的流体绕过 多级，从而改变压缩流体的容量。

公开(公告)号：USRE36281E

公开(公告)日：1999-08-24

申请号：US40268

申请日：1998-03-16

Applicant: Jan A. Zuercher ,  John Q. Richardson ,  Arthur R. Legault

Inventor： Jan A. Zuercher ,  John Q. Richardson ,  Arthur R. Legault

IPC: B23P15/00 ,  F04C18/16 ,  F04C28/12 ,  F04C28/16 ,  F16K27/02 ,  F16K31/122 ,  F16K31/363 ,  F04C29/10

CPC classification number: F04C28/16 ,  F04C28/125 ,  F16K27/029 ,  F16K31/122 ,  Y10T29/49236 ,  Y10T29/49242

Abstract: A lift valve communicating with a compression chamber of a .�.variable capacity.!. screw compressor is set forth including a valve housing, a piston reciprocally received within the valve housing, a shaft having a first end connected to the piston and a second end extending from the housing. The valve further includes a valve element connected to the second end of the shaft having a valve surface exposed to the compression chamber and a reciprocation mechanism for reciprocating the piston within the housing. The reciprocation mechanism includes a first pressure passage communicating with the housing adjacent a side of the piston, and a second pressure passage communicating with the housing adjacent and opposed side of the piston, wherein the valve surface is positively displaced toward and away from the compression chamber of the .�.variable capacity.!. screw compressor in response to the application of fluid pressure to at least one of the first and second pressure passages .�.to vary the capacity of the screw compressor.!.. Further, the lift valve it manufactured integral with the manufacturing of the compression chamber of the .�.variable capacity.!. screw compressor. This manufacturing process includes securing at least one lift valve to a housing of the .�.variable capacity.!. screw compressor in an operating position. Once secured to the housing, the shaft and consequently the valve element is fully extended from the valve housing and maintained in such position thus simultaneously machining an inner surface of the compression chamber and the valve surface such that the valve surface forms a continuation of the inner wall of the compression chamber when the .�.variable capacity.!. screw compressor is operating at full capacity.

Abstract translation: 与[可变容量]螺杆式压缩机的压缩室连通的提升阀被设置为包括阀壳体，往复地容纳在阀壳体内的活塞，具有连接到活塞的第一端和从第一端延伸的第二端 住房。 阀还包括连接到轴的第二端的阀元件，其具有暴露于压缩室的阀表面和用于使活塞在壳体内往复运动的往复运动机构。 往复运动机构包括与活塞附近的壳体连通的第一压力通道，以及与活塞的相邻侧和相对侧与壳体连通的第二压力通路，其中，阀面朝向和远离压缩室 [可变容量]螺杆式压缩机响应于将流体压力施加到第一和第二压力通道中的至少一个[以改变螺杆式压缩机的容量]。 此外，其制造的升降阀与[可变容量]螺杆式压缩机的压缩室的制造一体。 该制造过程包括将至少一个升降阀固定在操作位置的[可变容量]螺杆式压缩机的壳体上。 一旦固定到壳体上，轴和阀元件完全从阀壳体延伸并保持在这样的位置，从而同时加工压缩室和阀表面的内表面，使得阀表面形成内部 当[可变容量]螺杆式压缩机以满容量运行时，压缩室的壁。

公开(公告)号：US5816055A

公开(公告)日：1998-10-06

申请号：US669442

申请日：1996-07-10

Applicant: Henrik Ohman

Inventor： Henrik Ohman

IPC: F25B1/00 ,  F04C18/16 ,  F04C28/16 ,  F04C29/04 ,  F25B1/047 ,  F25B5/00 ,  F25B5/04 ,  F25B41/00 ,  F25B41/04 ,  F25B49/02

CPC classification number: F04C28/12 ,  F04C29/042 ,  F25B1/047 ,  F25B41/04 ,  F25B5/04 ,  F25B2400/13 ,  F25B2400/23 ,  F25B2600/2509

Abstract: A refrigeration system whose refrigeration capacity can be regulated continuously in a simple and reliable manner by gradually restricting the flow of refrigerant through an economizer channel to the compressor. The refrigeration system includes a rotary screw compressor, a condenser, a first pressure reducing valve, an economizer, a second pressure reducing valve, and an evaporator connected in sequence by respective channels. An outlet channel connects the evaporator to a low pressure inlet port of the rotary screw compressor to form a closed loop for a refrigerant. An economizer channel selectively connects the economizer to a closed working chamber of the rotary screw compressor. An adjustable valve provided in the economizer channel continuously regulates a mass flow of gaseous refrigerant through the economizer channel. And a sensing device senses a value of at least one parameter of the refrigerant in the closed loop which is indicative of a required refrigeration capacity. The adjustable valve is governed based on the at least one parameter sensed by the sensing device, and the at least one parameter is at least one of a temperature of refrigerant in the outlet channel of the evaporator and a pressure of refrigerant in the outlet channel of the evaporator.

Abstract translation: PCT No.PCT / SE94 / 00083 Sec。 371日期：1996年7月10日 102（e）日期1996年7月10日PCT 1994年2月3日PCT PCT。 公开号WO95 / 21359 日期1995年8月10日制冷系统的制冷能力可以通过逐渐将制冷剂流经节能器通道的方式逐渐限制到压缩机，以简单可靠的方式连续调节。 制冷系统包括旋转螺杆式压缩机，冷凝器，第一减压阀，节能器，第二减压阀，以及通过各个通道依次连接的蒸发器。 出口通道将蒸发器连接到旋转螺杆式压缩机的低压入口端口，以形成用于制冷剂的闭环。 节能器通道选择性地将节能器连接到旋转螺杆式压缩机的封闭的工作室。 设置在节能器通道中的可调节阀连续地调节通过节能器通道的气态制冷剂的质量流量。 并且感测装置感测闭合回路中的制冷剂的至少一个参数的值，其表示所需的制冷量。 可调节阀基于由感测装置感测的至少一个参数来控制，并且至少一个参数是蒸发器的出口通道中的制冷剂的温度和出口通道中的制冷剂的压力中的至少一个 蒸发器。

公开(公告)号：US5775117A

公开(公告)日：1998-07-07

申请号：US583505

申请日：1996-01-05

Applicant: David N. Shaw

Inventor： David N. Shaw

IPC: F04C28/10 ,  F04C28/16 ,  F04C29/04 ,  F04C29/12 ,  F25B1/047 ,  F25B49/02 ,  F25B41/00 ,  F01C1/16

CPC classification number: F04C29/042 ,  F04C28/10 ,  F04C28/16 ,  F04C29/122 ,  F25B1/047 ,  F25B49/022 ,  F25B2339/0242 ,  F25B2400/075 ,  F25B2400/13 ,  F25B2400/23

Abstract: A helical-screw rotary compressor having a twin rotor configuration or a multi-rotor (i.e., at least three) configuration with defined compressor induction and discharge ends has at least one unloader piston disposed at said compressor discharge end with an economizer injection port therein. The unloader pistons being opened and closed in fine discrete steps by microprocessor controlled stepping motors which drive linear actuators.

Abstract translation: 具有双转子结构或具有限定的压缩机感应和排出端的多转子（即至少三个）构型的螺旋螺杆式旋转式压缩机具有至少一个卸载器活塞，其设置在所述压缩机排出端，其中具有节能器注入口。 卸载器活塞通过微处理器控制的步进电机以微小的离散步骤打开和关闭，驱动线性致动器。