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公开(公告)号：US20170248263A1
公开(公告)日：2017-08-31
申请号：US15584164
申请日：2017-05-02
发明人： Hideo TERADA , Ryousuke KANEGAE , Kazuki HATANAKA
IPC分类号： F16L37/14
CPC分类号： F16L37/144
摘要： A quick connector includes paired first legs having a first push-in inhibiting protrusion, and paired second legs having a second push-in inhibiting protrusion. Although the first push-in inhibiting protrusions inhibit the push-in movements of a retainer in a state before a pipe is inserted, they do not inhibit the push-in movements of the retainer in such another state as the pipe is located at a midway position. The second push-in inhibiting protrusions inhibit the push-in movements of the retainer in the other state where the pipe is located at the midway position.
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公开(公告)号：US20220026003A1
公开(公告)日：2022-01-27
申请号：US17496792
申请日：2021-10-08
IPC分类号： F16L37/12
摘要： Provided is a quick connector. When a pipe is inserted into a connector main body, first leg parts of a retainer are deformed and expanded by pressing force in the axial direction on tapered surfaces of the first leg parts caused by an annular protrusion of the pipe, and the annular protrusion of the pipe can pass through the first leg parts in the insertion direction. When the pipe releases from the normal position, the retainer moves in a prescribed direction from a standard position, the first leg parts make contact with a first guide of the connector main body, and the first leg parts are deformed so as to expand, and due to the deformation and expansion of the first leg parts the annular protrusion of the pipe can pass through the first leg parts in the release direction.
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公开(公告)号：US20200248851A1
公开(公告)日：2020-08-06
申请号：US16856278
申请日：2020-04-23
IPC分类号： F16L33/035 , G01K13/02
摘要： A connector includes: a tube body formed in a tubular shape having a first opening and a second opening at both ends thereof, a first opening side of the tube body being connectable to an end of a first pipe, a second opening side of the tube body being connectable to an end of a second pipe, the tube body allowing a fluid to flow therethrough between the first opening and the second opening; a temperature detection element embedded in a tubular part of the tube body and configured to detect a temperature of the fluid flowing through the tube body; and a terminal electrically connected to the temperature detection element and exposed to outside of the tube body.
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公开(公告)号：US20200248661A1
公开(公告)日：2020-08-06
申请号：US16856441
申请日：2020-04-23
摘要： A connector includes: a connector body formed in a tubular shape; and a valve body stored inside the connector body, the valve body being configured to, when high-pressure fuel does not flow back, come into a first state in which a forward flow path is formed between the valve body and an inner circumferential surface of the connector body by a pressure of low-pressure fuel, and when high-pressure fuel flows back, come into a second state in which an orifice flow path having a smaller flow path sectional area than the forward flow path is formed between the valve body and the inner circumferential surface of the connector body.
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公开(公告)号：US20210293363A1
公开(公告)日：2021-09-23
申请号：US17341388
申请日：2021-06-08
IPC分类号： F16L55/055 , F16L29/00 , F02M37/00
摘要： A connector that is in a fuel supply system capable of supplying a high-pressure fuel, and may reduce pulsation in a low-pressure pipe with a simple structure and extend the life of a mold is provided. A valve of the connector includes a valve seat contact surface and a tapering through hole. The valve seat contact surface axially separates from an annular valve seat and forms a forward-direction flow path due to pressure of the low-pressure fuel when the high-pressure fuel does not flow in reverse, and may come into contact with the annular valve seat when the high-pressure fuel flows in reverse. The tapering through hole is formed farther radially inward than the valve seat contact surface, forms an orifice flow path having a smaller cross-sectional area than the forward-direction flow path, and allows a reverse flow of the high-pressure fuel when the high-pressure fuel flows in reverse.
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公开(公告)号：US20200256493A1
公开(公告)日：2020-08-13
申请号：US16858888
申请日：2020-04-27
发明人： Ryousuke KANEGAE , Kazushige SAKAZAKI , Makoto ITO
IPC分类号： F16L37/14
摘要： A pair of first leg portions of a retainer have first taper surfaces at distal end sides on surfaces on the side to which a first pipe is to be inserted. The first taper surfaces cause the retainer to move from an initial position to an insertion position by an axial-direction pressing force from an annular protrusion, during a period until the first pipe is inserted to a regular position. During the period until the first pipe is inserted to the regular position, a pair of second leg portions restrict the retainer from moving from the initial position to a confirmation position. In a state in which the first pipe is inserted to the regular position, the pair of second leg portions allow the retainer to move from the initial position to the confirmation position.
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公开(公告)号：US20200256294A1
公开(公告)日：2020-08-13
申请号：US16858972
申请日：2020-04-27
摘要： A connector includes: a connector body formed in a tubular shape; a valve housing formed in a tubular shape and provided inside the connector body with a seal structure interposed therebetween, the seal structure restricting flow of fuel between the valve housing and an inner circumferential surface of the connector body; and a valve body stored inside the valve housing, the valve body being configured to, when high-pressure fuel does not flow back, come into a first state in which a forward flow path is formed between the valve body and an inner circumferential surface of the valve housing by a pressure of low-pressure fuel, and when the high-pressure fuel flows back, come into a second state in which an orifice flow path having a smaller flow path sectional area than the forward flow path is formed between the valve body and the inner circumferential surface of the valve housing.
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