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公开(公告)号：US11988296B2
公开(公告)日：2024-05-21
申请号：US17603284
申请日：2020-04-21
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Masahiro Hayama , Kohei Fukudome , Toshinori Kanzaki , Wataru Takahashi , Keigo Shirafuji
CPC classification number: F16K27/029 , F16K17/04 , F16K31/0655
Abstract: A capacity control valve includes a valve housing provided with a suction port through which a suction fluid of suction pressure passes, and a control port through which a control fluid of control pressure passes, a valve element configured to be driven by a solenoid, a spring that biases the valve element in the direction opposite to the driving direction by the solenoid, and a CS valve formed by a CS valve seat and the valve element and configured for opening and closing a communication between the control port and the suction port by movement of the valve element. The capacity control valve further includes a pressure receiving portion to which force in accordance with discharge pressure is applied in the axial direction of the valve element.
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公开(公告)号：US11927275B2
公开(公告)日：2024-03-12
申请号：US17600547
申请日：2020-04-02
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Masahiro Hayama , Kohei Fukudome , Takahiro Ejima , Wataru Takahashi , Keigo Shirafuji
IPC: F16K31/06 , F04B27/18 , F16K11/22 , F16K11/24 , F16K31/122
CPC classification number: F16K31/0613 , F16K11/22 , F16K11/24 , F16K31/1221 , F04B2027/1813 , F04B2027/1827 , F04B2027/1831 , F04B2027/1868 , F04B2027/1881
Abstract: A capacity control valve includes a valve housing provided a discharge port through which a discharge fluid of discharge pressure Pd passes, a suction port through which a suction fluid of suction pressure Ps passes, and a control port through which a control fluid of control pressure Pc passes, a rod configured to be driven by a solenoid, a main valve formed by a main valve seat and a main valve element and configured for opening and closing a communication between the discharge port and the control port in accordance with a movement of the rod, and a CS valve provided between the control port and the suction port and controlled by a dynamic pressure of a fluid flowing from the discharge port to the control port at an opening state of the main valve.
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公开(公告)号：US11873804B2
公开(公告)日：2024-01-16
申请号：US16969175
申请日：2019-02-26
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Daichi Kurihara , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Masahiro Hayama , Takahiro Ejima , Wataru Takahashi
CPC classification number: F04B27/1804 , F16K31/06 , F04B2027/1813 , F04B2027/1827 , F04B2027/1854 , F04B2027/1859
Abstract: A capacity control valve for controlling a capacity of a fluid includes: a valve housing; a main valve closing and opening a communication between a Pc port and a Pd port when a main valve portion of a main valve element driven by a drive force of a solenoid comes into contact with and separates from a main valve seat; a pressure-sensitive valve which is opened by an ambient pressure; a hollow tube member which forms a part of the pressure-sensitive valve and allows the Pc port to communicate with a Ps port through a hollow communication path formed therein when the pressure-sensitive valve is opened; and an auxiliary communication path allows the Pc port to communicate with the Ps port independently of the pressure-sensitive valve, and the auxiliary communication path is configured to be able to increase a flow path cross-sectional area after the main valve is closed.
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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
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Masahiro Hayama , Hiroyuki Nishinosono , Keigo Shirafuji , Kohei Fukudome , Yoshihiro Ogawa , Daichi Kurihara , Wataru Takahashi
IPC: F16K11/24 , F16K31/06 , F16K31/126 , F04B27/18
Abstract: 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
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Daichi Kurihara , Kohei Fukudome , Keigo Shirafuji
Abstract: 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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Patent Agency Ranking
公开(公告)号：US11454227B2
公开(公告)日：2022-09-27
申请号：US16961627
申请日：2019-01-21
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Masahiro Hayama , Yoshihiro Ogawa , Keigo Shirafuji , Kohei Fukudome , Takahiro Ejima , Daichi Kurihara , Wataru Takahashi
Abstract: 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
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Hideki Higashidozono , Masahiro Hayama , Kohei Fukudome , Daichi Kurihara
IPC: F04B27/18
Abstract: 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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公开(公告)号：US10167978B2
公开(公告)日：2019-01-01
申请号：US15529061
申请日：2015-12-21
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Masahiro Hayama , Hideki Higashidozono , Masayuki Futakuchi , Kohei Fukudome
IPC: F16K47/06 , F16K51/00 , F16K31/06 , F16K27/02 , F04B27/10 , F04B27/18 , F04B39/10 , F16K41/00 , F16K47/12 , F16K25/04 , G05D16/20
Abstract: A displacement control valve includes a valve housing, a valve element fitted in a guide passage of the valve housing, and a solenoid for driving the valve element to open and close it, a tapered portion is provided at one of an outer peripheral surface of the valve element and a guide surface of the guide passage, and a spiral groove is provided in the other, wherein the tapered portion is set such that a gap between the valve element and the guide passage is larger toward the low-pressure side than on the high-pressure side, and the tapered portion and the spiral groove are provided such that a starting point of the tapered portion is located within the region of the spiral groove in the entire range between the starting point and the ending point of the stroke of the valve element.
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公开(公告)号：US10077849B2
公开(公告)日：2018-09-18
申请号：US15872781
申请日：2018-01-16
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Toshiaki Iwa , Yoshihiro Ogawa , Kohei Fukudome , Kenji Moriwaki
CPC classification number: F16K31/0613 , F04B27/1804 , F16K11/0716 , G05D16/0619 , G05D16/2013 , G05D16/2024 , Y10T137/86622
Abstract: A capacity control valve includes: a pressure-sensitive body positioned in a third valve chamber; an adapter provided on the free end of the pressure sensitive body having a circular seating surface; a third valve part that moves integrally with a valve element in the third valve chamber and has a circular engagement surface that opens/closes intake-side passages by engaging with and separating from the seating surface of the adapter. The valve element is located between the first valve chamber and the second valve chamber, and has an outer circumferential face part slidably movable relative to an inner circumferential face of the valve body, with plural threads of screw grooves are formed on the outer circumferential face part.
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公开(公告)号：US12196464B2
公开(公告)日：2025-01-14
申请号：US18017824
申请日：2021-07-27
Applicant: EAGLE INDUSTRY CO., LTD.
Inventor： Takahiro Ejima , Kenshiro Furukawa , Kohei Fukudome , Keigo Shirafuji
IPC: F25B41/345 , B60H1/00 , F16K1/36 , F16K17/04
Abstract: To provide a valve capable of suppressing contamination from being caught between a fixed iron core and a rod. The valve includes: a valve housing; a valve body; a valve seat having the valve body seated thereon; a drive source for driving the valve body by a rod; and an urging member for urging the valve body in a direction opposite to a driving direction of the drive source. One of the valve body and the rod includes a guide concave portion which guides remaining one of the valve body and the rod in a relative fitting direction.
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