[특허]Branch connectors for high-pressure branched fuel pipe

Branch connectors for high-pressure branched fuel pipe 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-041/12
출원번호	US-0721286 (1991-06-26)
우선권정보	JP-0173848 (1990-06-30)
발명자 / 주소	Takikawa Kazunori (Numazu JPX)
출원인 / 주소	Usui Kokusai Sangyo Kaisha Ltd. (JPX 03)
인용정보	피인용 횟수 : 42 인용 특허 : 0

초록 ▼

Branch connectors connected with a high-pressure branched fuel tube forming a fuel supply passage to a Diesel engine. Each connector has a circulation passage through which high-pressure fuel circulates. The passage extends axially within the main pipe. Holes extend through the wall defining the passage. Pressure-receiving seat surfaces are formed, each around an opening in the outer surface of the main pipe. The diameter of the opening increases outwardly. Each connector has a fluid passage in communication with the circulation passage, as well as a push head portion bearing on the corresponding seat surface. Coupling metal fittings surround the main pipe. The connectors are screwed to their respective fittings, for fastening the connectors to the main pipe. The bearing portion of each push head portion is a substantially spherical surface whose center is located on the axis of the connector. The bearing portion of the seat surface is a curved surface that is symmetrical with respect to the axis of the corresponding hole. The curved surface is in contact with the spherical surface on a line. The distance l of the inner surface of the main pipe from the intersection of said line and the plane which runs across the axis of the corresponding hole and parallel to the axis of the main pipe is so set that the relations 1/5 T

대표청구항 ▼

A combination of branch connectors and a high-pressure main fuel pipe, said combination comprising: a main pipe having a generally cylindrical wall with opposed inner and outer surfaces, the inner surface defining an axially extending circulation passage through which high-pressure fuel circulates, the wall defining a radially thickness T extending from the inner surface to the outer surface thereof; a plurality of holes extending radially through the wall of the main pipe and communicating with the circulation passage, the holes being spaced from each other axially of the passage; pressure-receiving seat surfaces each formed around a respective one of the holes of the main pipe, the pressure-receiving seat surfaces defining curved surfaces symmetrical about a radius of the main pipe extending centrally through the respective hole and the diameter of the curved pressure receiving sent surface increasing at radially outwardly disposed locations on the wall of the main pipe, the branch connectors being juxtaposed on the holes, each said branch connector having a fluid passage extending axially therethrough and being in communication with the circulation passage of the main pipe, the push head portion bearing against the pressure-receiving seat surface; coupling metal fittings mounted to surround the main pipe, each said coupling metal fitting having threads for fastening the branch connectors to the main pipe; the push head portions of the respective branch connectors being substantially spherical surfaces having centers located on the axes of the respective branch connectors; the spherical push head portion of each branch connector contacting the respective pressure-receiving seat surface on a line; the spherical push heads and the curved pressure-receiving seat surfaces being dimensioned such that a distance l from the inner surface of the main pipe to said line of contact between the spherical push head portion of each branch connector and the respective curved pressure-receiving seat surface is such that the relations 1/5 T

이 특허를 인용한 특허 (42)

Davio John Leon Thomas Joseph,CAXITX T7S 1G3, Alignment device for use in welding.
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Hitachi Yuzo,JPX ; Watanabe Eiji,JPX, Common rail.
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Kikuo Asada JP; Shoichiro Usui JP, Common rail.
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Kusanagi,Ryuichi, Common rail.
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Asada Kikuo,JPX ; Usui Masayoshi,JPX ; Watanabe Eiji,JPX ; Takikawa Kazunori,JPX ; Kusanagi Ryuichi,JPX, Common rail and method of manufacturing the same.
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Asada Kikuo,JPX ; Usui Masayoshi,JPX ; Watanabe Eiji,JPX ; Takikawa Kazunori,JPX ; Kusanagi Ryuichi,JPX, Common rail and method of manufacturing the same.
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Kikuo Asada JP; Masayoshi Usui JP; Eiji Watanabe JP; Kazunori Takikawa JP; Ryuichi Kusanagi JP, Common rail and method of manufacturing the same.
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Masayoshi Usui JP; Kikuo Asada JP, Common rail for diesel engine.
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Usui,Shoichiro; Usui,Masayoshi; Sakamoto,Yasuji; Watanabe,Eiji; Hashimoto,Yasuaki, Common rail for diesel engine.
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Usui,Masayoshi; Asada,Kikuo; Takahashi,Teruhisa, Common-rail injection system for diesel engine.
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Hopinks, Jordan J.; Tremoulet, Jr., Olivier L.; Pearson, Larry G., Components, systems and methods for forming a gasketless seal between like metal components in an ultrahigh pressure system.
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Hofschneider,Manfred, Connecting element.
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Kato, Nobuo; Hayashi, Koichi; Usui, Shoichiro, Connecting head structure for high-pressure fuel injection pipes.
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Usui Masayoshi,JPX, Connection structure for branching connector in high-pressure fuel rail.
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Sperle, Peter; Oilenius, Reijo, Device for connecting a high-pressure line to an accumulator tank.
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Shoichiro Usui JP, Diesel engine fuel injection pipe.
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Milne, Trevor, Drain pipe arrangement and gas turbine engine comprising a drain pipe arrangement.
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Hofschneider,Manfred, Fastener.
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Roll, Eric D., Gasketless high pressure connection.
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Jung, Steffen; Popp, Heinz, High-pressure fuel accumulator.
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Kato, Nobuo, High-pressure fuel injection pipe.
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Morita,Yoshiharu, High-pressure fuel injection pipe.
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Furugen, Munekatsu; Ishida, Shigeyuki; Kato, Nobuo, High-pressure fuel injection pipe having connecting head portion.
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Usui, Shoichiro, High-pressure metal pine having connecting head and method of forming the connecting head as well as sleeve washer for the connecting head.
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Haibara Yoshinori,JPX, Joint head for high-pressure metal piping, and common rail to which the piping is to be joined.
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Asada Kikuo,JPX, Joint structure for branch connectors in common rails.
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Kato Nobuo (Shunto-gun JPX), Joint structure for joining a branch member to a high pressure fuel rail.
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Asada, Kikuo, Joint structure of branch connector for common rail.
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Usui,Masayoshi; Asada,Kikuo; Hashimoto,Yasuaki; Nishizawa,Hiroyuki; Seino,Iichiro, Joint structure of diverging branch pipe in fuel rail for internal combustion engine, diverging branch pipe and manufacture method of its diverging branch pipe.
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Slocum Alexander H. (Bow NH), Kinematic coupling fluid couplings and method.
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Ashcraft Timothy A. (Dover OH), Laminated fuel line and connector.
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Ashcraft Timothy A. (Dover OH), Laminated fuel line and connector.
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Kikuo Asada JP; Masayoshi Usui JP; Eiji Watanabe JP; Kazunori Takikawa JP; Ryuichi Kusanagi JP, METHOD FOR IMPROVING FATIGUE STRENGTH DUE TO REPEATED PRESSURE AT BRANCH HOLE PART IN MEMBER FOR HIGH PRESSURE FLUID, BRANCH HOLE PART OF MEMBER FOR HIGH PRESSURE FLUID FORMED BY THE METHOD, AND MEMB.
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Hopkins, Jordan J.; Hawes, Adrian, Method and apparatus for sealing an ultrahigh-pressure fluid system.
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Hopkins,Jordan J.; Hawes,Adrian; Old,William L., Method and apparatus for sealing an ultrahigh-pressure fluid system.
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Usui,Masayoshi; Asada,Kikuo; Takahashi,Teruhisa, Method for forming a common-rail injection system for diesel engine.
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Asada Kikuo,JPX ; Kusanagi Ryuichi,JPX, Method of manufacturing common rails.
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Watanabe,Toshikazu, Pipe coupling device.
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Hopkins,Jordan J.; Hawes,Adrian, Seal carrier for ultrahigh-pressure fluid systems.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Branch connectors for high-pressure branched fuel pipe 원문보기

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Branch connectors for high-pressure branched fuel pipe 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (42)

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