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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：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：US11635152B2
公开(公告)日：2023-04-25
申请号：US17293435
申请日：2019-11-22
摘要： A capacity control valve includes a valve housing provided with a Ps port through which a suction fluid at a suction pressure passes and a Pc port through which a control fluid at a control pressure passes; a valve body configured to close and open a communication between the Pc port and the Ps port by a driving force of a solenoid; and a pressure sensitive body that applies a biasing force to the valve body according to a surrounding fluid pressure. An accommodation chamber in which a rear side portion of the valve body is accommodated is provided with a supply passage to which suction fluid is supplied.
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公开(公告)号：US11326707B2
公开(公告)日：2022-05-10
申请号：US16961620
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 valve element (20) having an intermediate communication passage (29), a main valve portion (21c), and an auxiliary valve portion (23d), and a solenoid (30) having a plunger (35) that drives a first rod (136) and a second rod (36). The first rod (136) opens and closes the main valve portion (21c), and the second rod (36) opens and closes the auxiliary valve portion. The capacity control valve is capable of efficiently discharging a liquid coolant irrespective of pressure of a suction chamber and lowering drive force of a compressor at a liquid coolant discharging operation.
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公开(公告)号：US11326585B2
公开(公告)日：2022-05-10
申请号：US16772711
申请日：2018-12-21
发明人： Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi
摘要： A capacity control valve includes a valve housing having a main valve seat portion formed on an inner peripheral surface, a main valve body that has a main valve portion capable of seating on the main valve seat portion and capable of blocking communication between a discharge port and a control port depending on a driving force of a solenoid, a relief valve that is opened by pressure, a first flow channel that allows the control port and a suction port to communicate with each other when the relief valve is opened. A second flow channel formed at least partially in parallel with the first flow channel allows the control port and the suction port to communicate with each other. A spool valve body is reciprocally disposed in a sleeve and capable of adjusting an opening of the second flow channel depending on the driving force of the solenoid.
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公开(公告)号：US11053933B2
公开(公告)日：2021-07-06
申请号：US16219570
申请日：2018-12-13
发明人： Matthew R. Warren , Ernesto Jose Gutierrez , Daichi Kurihara , Takahiro Ejima , Wataru Takahashi , Kohei Fukudome , Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji
摘要： Provided is A displacement control valve which includes a valve housing, a valve element constituting a main valve that contacts and separates from a main valve seat, for opening and closing communication between discharge ports and control ports by driving force of a solenoid, a pressure-sensitive valve that opens and closes according to ambient pressure, and a pressure-sensitive valve member constituting the pressure-sensitive valve together with a pressure-sensitive element. The valve element and the pressure-sensitive valve member are formed with an intermediate communicating passage which allows communication between the control ports and the suction ports by opening and closing of the pressure-sensitive valve.
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公开(公告)号：US11555489B2
公开(公告)日：2023-01-17
申请号：US17256955
申请日：2019-07-09
发明人： Masahiro Hayama , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi , Keigo Shirafuji , Yoshihiro Ogawa
摘要： A capacity control valve includes a valve housing provided with a discharge port, suction ports, and a control port and a primary valve including a primary valve seat and a primary valve body driven by a solenoid, the primary valve being configured to open and close a communication between the discharge port and the control port in accordance with a movement of the primary valve body. The capacity control valve further includes a differential CS valve which is openable and closable by a pressure difference between the control pressure Pc and the suction pressure Ps and an electromagnetic CS valve that is openable and closable so as to close the control port and the suction port in a non-energized state of the solenoid 80 in accordance with the movement of the primary valve body.
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公开(公告)号：US11536257B2
公开(公告)日：2022-12-27
申请号：US17256959
申请日：2019-07-09
发明人： Masahiro Hayama , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi , Keigo Shirafuji , Yoshihiro Ogawa
摘要： A capacity control valve includes a CS valve which opens and closes a communication between the control fluid and the suction fluid by the movement of rods and an urging member configured to urge the primary valve body and the rods in opposite directions and the primary valve body and the rods are disposed so as to be relatively movable in an axial direction.
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公开(公告)号：US11473683B2
公开(公告)日：2022-10-18
申请号：US17259138
申请日：2019-08-07
发明人： Masahiro Hayama , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi , Keigo Shirafuji
摘要： A capacity control valve includes a valve housing formed with a discharge port, a suction port, and first and second control ports, a rod arranged in the valve housing and driven by a solenoid, a CS valve 50 configured to control a fluid flow between the first control port and the suction port in accordance with a movement of the rod, and a DC valve configured to control a fluid flow between the second control port and the discharge port in accordance with the movement of the rod. In a non-energization state of the solenoid, the CS valve is closed and the DC valve is opened. As the energization of the solenoid becomes larger, the CS valve transitions from a closed state to an open state, and the DC valve is throttled from an open state and thereafter transitions to the open state.
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