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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：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：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：US11486376B2
公开(公告)日：2022-11-01
申请号：US16957344
申请日：2018-12-26
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), a solenoid (30) that drives a rod (36) having an auxiliary valve seat (26c), and a first biasing member (43) that biases in the valve closing direction of the main valve portion (21c). The rod (36) is relatively moved with respect to the valve element (20) so as to open and close the auxiliary valve portion. The capacity control valve can efficiently discharge a liquid coolant irrespective of pressure of a suction chamber and lower drive force of a compressor at a liquid coolant discharging operation.
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公开(公告)号：US11480166B2
公开(公告)日：2022-10-25
申请号：US17256953
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, a control port and a primary valve driven by a solenoid. The capacity control valve further includes a differential CS valve which includes a differential CS valve body disposed so as to be relatively movable in an axial direction with respect to the primary valve bodies. The differential CS valve body divides a control pressure chamber into a discharge side control chamber communicating with the first control port and a suction side control chamber communicating with the second control port in the axial direction and operates the differential CS valve body by a differential pressure between the discharge side control chamber and the suction side control chamber so as to open the second control port and the suction port.
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公开(公告)号：US11156301B2
公开(公告)日：2021-10-26
申请号：US16962786
申请日：2019-01-24
发明人： Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi
摘要： A capacity control valve V includes a valve housing provided with a Pc port, a Pd port and a Ps port; a main valve body that includes a main valve portion which comes into contact with and separates from a main valve seat 10a to close and open a communication between a Pd port and the Pc port using a driving force of a solenoid; a pressure-sensitive valve capable of opening and closing, depending on a surrounding pressure, a first communication passage through which the Pc port and the Ps port are communicable with each other; and a differential pressure valve capable of opening and closing, depending on a pressure difference, a second communication passage through which the Pc port and the Ps port are communicable with each other.
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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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公开(公告)号：US11434885B2
公开(公告)日：2022-09-06
申请号：US16957340
申请日：2018-12-26
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 (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), a solenoid (30) that drives a rod (36) having an auxiliary valve seat (26c), and a first biasing member (43) that biases in the valve closing direction of the main valve portion (21c). A spring constant of the first biasing member (43) has a characteristic that the spring constant is increased in an opened state of the main valve portion (21c) and decreased in a closed state. The capacity control valve can efficiently discharge a liquid coolant and lower drive force of a compressor at a liquid coolant discharging operation.
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