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公开(公告)号：US11512786B2
公开(公告)日：2022-11-29
申请号：US16766124
申请日：2018-11-28
发明人： Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Daichi Kurihara , Wataru Takahashi
摘要： A capacity control valve, which can efficiently discharge a liquid refrigerant and reduce the driving force of a compressor, includes: a valve main body (10) including a first communication passage (11), a second communication passage (12), a third communication passage (13) and a main valve seat (15a); a valve body (20) including an intermediate communication passage (29), a main valve part (21c) and an auxiliary valve part (23d); a solenoid (30) which drives a rod (36) having an auxiliary valve seat (26c); a first biasing member (43) which biases the main valve part (21c) in the valve closing direction thereof; and a second biasing member (37) which biases the main valve part (21c) in the valve opening direction thereof, and the rod (36) relatively moves to the valve body (20), and opens and closes the auxiliary valve part (23d).
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公开(公告)号：US11378194B2
公开(公告)日：2022-07-05
申请号：US17287086
申请日：2019-11-06
发明人： Kohei Fukudome , Masahiro Hayama , Keigo Shirafuji
摘要： A capacity control valve includes a valve housing provided with a discharge port, a suction port, and a control port a rod driven by a solenoid; and a main valve that includes a main valve seat and a main valve body between the discharge port and the control port in accordance with a movement of the rod. The capacity control valve V further includes a CS valve that includes a CS valve seat and a CS valve body communication between the control port and the suction port. The CS valve body is disposed so as to be movable relative to the main valve body. The main valve body and the CS valve body move together in accordance with the movement of the rod while a closed state of the main valve is maintained.
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公开(公告)号：US11319940B2
公开(公告)日：2022-05-03
申请号：US16967692
申请日：2019-02-14
发明人： Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi
IPC分类号： F04B27/18
摘要： A capacity control valve includes: a housing with a Pc port, a Pd port, a first Ps port and a second Ps port; a main valve element having a main valve portion adapted to contact with and separate from a main valve seat to close and open a communication between the Pd port and the Pc port by a drive force of a solenoid; an intermediate communication path communicating with the Pc port and the first Ps port; a pressure-sensitive valve configured to open and close the intermediate communication path by an ambient pressure; and a differential pressure valve including a differential pressure valve element configured to open and close a communication between the Pc port and the second Ps port and a communication between the Pc port and a pressure-sensitive chamber by the differential pressure valve element moved by a pressure.
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公开(公告)号：US11242940B2
公开(公告)日：2022-02-08
申请号：US16772703
申请日：2018-12-26
IPC分类号： F16K31/12 , F16K31/06 , F04B27/18 , F16K31/122
摘要： A capacity control valve includes a valve housing provided with a main valve seat; a main valve body that is inserted into the valve housing and includes a main valve portion which is capable of seating on the main valve seat 10a to open and close a communication between a suction port and a control port using a driving force of a solenoid; and a pressure-sensitive body that applies a biasing force to the main valve body in an opening direction according to pressure of a fluid surrounding the pressure-sensitive body. The fluid is supplied from the control port to around the pressure-sensitive body, and the fluid is supplied from the suction port to a back pressure side of the main valve body.
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公开(公告)号：US10690125B2
公开(公告)日：2020-06-23
申请号：US16085428
申请日：2017-03-10
摘要： A displacement control valve improved in the function of discharging a liquid refrigerant in a control chamber at startup achieves a reduction in startup time and an improvement in operating efficiency during control of a variable displacement compressor simultaneously. An opening area between a third valve section and a third valve seat surface in a control area to control the flow rate or pressure in a working control chamber is set smaller than an area of an auxiliary communicating passage, thereby reducing the minimum area of a Pc-Ps flow path in the control area.
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公开(公告)号：US20150068628A1
公开(公告)日：2015-03-12
申请号：US14384045
申请日：2013-05-15
发明人： Toshiaki Iwa , Yoshihiro Ogawa , Kohei Fukudome , Kenji Moriwaki
CPC分类号： F16K31/0613 , F04B27/1804 , F16K11/0716 , G05D16/0619 , G05D16/2013 , G05D16/2024 , Y10T137/86622
摘要： In an embodiment, a capacity control valve includes: a pressure-sensitive body 50 positioned in a third valve chamber 38; an adapter 53 provided on the free end of the pressure-sensitive body 50 having a circular seating surface; a third valve part 43 that moves integrally with a valve element 40 in the third valve chamber 38 and has a circular engagement surface that opens/closes intake-side passages 34 by engaging with and separating from the seating surface of the adapter 53; and a solenoid 60 that applies an electromagnetic drive force to the valve element 40 in the direction of closing a first valve part 41, wherein the pressure-sensitive body 50 is formed by a formed bellows made of material having greater yield stress than phosphor bronze, and the formed bellows has its diameter set smaller and its stroke longer than the diameter and stroke of a phosphor bronze bellows.
摘要翻译： 在一个实施例中，容量控制阀包括：位于第三阀室38中的压敏体50; 设置在具有圆形座面的压敏体50的自由端上的适配器53; 第三阀部43，其与第三阀室38中的阀元件40一体地移动，并具有通过与适配器53的座面接合和分离而使进气侧通路34打开/关闭的圆形接合面; 以及螺线管60，其在关闭第一阀部41的方向上向阀元件40施加电磁驱动力，其中，压敏体50由具有比磷青铜更大的屈服应力的材料制成的波纹管形成， 并且形成的波纹管的直径设定得较小，其行程长于磷青铜波纹管的直径和行程。
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公开(公告)号：US11542929B2
公开(公告)日：2023-01-03
申请号：US16771548
申请日：2018-12-13
发明人： Masahiro Hayama , Hiroyuki Nishinosono , Keigo Shirafuji , Kohei Fukudome , Yoshihiro Ogawa , Daichi Kurihara , Wataru Takahashi
IPC分类号： F16K11/24 , F16K31/06 , F16K31/126 , F04B27/18
摘要： A capacity control valve includes: a valve body (10) including first communication passages (11), second communication passages (12), third communication passages (13), and a main valve seat (15a); a valve element (21) including an intermediate communication passage (29), a main valve portion (21b), and an auxiliary valve portion 21c; a solenoid (30) that drives a rod (36) provided with an auxiliary valve seat (23c); a first biasing member (43) that biases in a valve closing direction of the main valve portion (21b); and a second biasing member (44) that biases in a valve closing direction of the auxiliary valve portion (21c), wherein the rod (36) moves relative to the valve element (21) to open and close the auxiliary valve portion (21c). The capacity control valve allows a liquid refrigerant to be efficiently discharged and allows a driving force of a compressor to be decreased.
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公开(公告)号：US11519399B2
公开(公告)日：2022-12-06
申请号：US16766096
申请日：2018-12-07
发明人： Daichi Kurihara , Kohei Fukudome , Keigo Shirafuji
摘要： The purpose of the present invention is to provide a capacity control valve with which it is possible to efficiently discharge a liquid refrigerant irrespective of the pressure of a suction chamber. A capacity control valve (1) includes: a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a); a valve body (20) having an intermediate communication passage (26), a main valve part (21b), and an auxiliary valve part (23d); and a solenoid (30) equipped with a first plunger (34) having a first rod (33), and a second plunger (35) having a second rod (36), the first rod (33) opens and closes the main valve part (21b), and the second rod (36) opens and closes the auxiliary valve part (23d).
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公开(公告)号：US11454227B2
公开(公告)日：2022-09-27
申请号：US16961627
申请日：2019-01-21
发明人： Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi
摘要： A capacity control valve (1) includes a valve main body (10) having a first communication passage (11), a second communication passage (12), a third communication passage (13), and a main valve seat (15a), a pressure-sensitive body (24), a valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and a restrictor portion (25), and a solenoid (30) that drives a rod (36). The rod (36) is relatively moved with respect to the valve element (20) so as to control an opening degree of the restrictor portion (25). The capacity control valve is capable of efficiently discharging a liquid coolant irrespective of pressure of a suction chamber and improving control stability.
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公开(公告)号：US10781804B2
公开(公告)日：2020-09-22
申请号：US16323180
申请日：2017-08-22
IPC分类号： F04B27/18
摘要： A displacement control valve is provided for discharging liquid refrigerant in a control chamber at startup and achieves a reduction in startup time and an improvement in operating efficiency during control of a variable displacement compressor simultaneously. The opening area between communicating holes in a third valve section and a third valve seat surface in a control area to control the flow rate or pressure in a working control chamber is set smaller than the area of auxiliary communicating passages.
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