• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The screw union for pressure pipes, particularly as used for engine fuel injection, has a widened end portion over which a union nut fits. The coaxial conical faces(2, 3) sloping in opposite directions are formed on the end portion, the rear one (2) working against an inner cone face (6) on the nut (5) and the front one (3) against a conical face (8) on the union socket (7). The cone angle of the rear cone face (2) on the end portion is between 0.5 and 12 deg. greater than that of the inner face on the nut, which is between 50 and 70 deg.
    公开号:SU821726A1
    申请号:SU792748254
    申请日:1979-03-21
    公开日:1981-04-15
    发明作者:Прадка Йильи；Жалуд Кветослав；Шимичек Эмил
    申请人:Татра Народни Подник(Инопредприятие)；
    IPC主号:
    专利说明:

    This invention relates to a motor structure. It is known to connect an injection pipe with a nozzle for an internal combustion engine, a cap nut with a pressure conical surface, a for- connection: a cone with a conical sealing surface and a pipeline with a connecting element at the end having two coaxial, vertex-facing each other conical surfaces, one of which interacts with the conical surface of the nut and the other with the sealing surface of the HP union. The disadvantage of this connection is unreliable sealing. The purpose of the invention is to increase the reliability of compaction. This goal is achieved by the fact that the angle at the apex at the conical surface of the connecting element, which interacts with the cap nut, is 0.5-12 more than the angle at the apex y2 of the conical surface of the cap nut and is 55-70. In addition, for - angles at the top of the conical surfaces of the cap nut, fitting and connecting element, the correlation is valid: (where Si is the angle for the conical surface of the connecting element. 82 is the angle at beE1. 1 The conical surface of the union is. Constructive connection scheme. Connection. contains a cap nut 1 with a pressure conical surface 2, a fitting 3 nozzles with a conical sealing surface 4 and a pipeline 5 with a connecting element b at the end having two co-aligned, reversed The conical surfaces 7 and 8, which are tops apart from each other, are connected as follows: When the nut 1 is turned on the fitting 3, the connecting element b is clamped between them and a reliable sealing is ensured by the conical sealing surfaces.
    权利要求:
    Claims (2)
    [1]
    1. Connection of an injection pipe with an injector for an internal combustion engine, comprising a flare, a nut with a pressure conical surface, a nozzle fitting with a conical sealing surface and a pipe with a connecting element at the end having two coaxial, reversed tops from each other conical surfaces, one of which interacts with the conical surface of the nut, and the other with the sealing surface of the nozzle, characterized in that, in order to increase the reliability of the seal, the angle at the top e at the conical surface of the connecting member, with cap nut veaimodeystvukitsey at 0,5-12 ° greater than the angle at
    the top of y2 of the conical surface of the cap nut and is 55-70.
    [2]
    2. The connection according to Claim. 1, about tl k.ch. with the fact that for the angles at the vertices of the conical surfaces of the cap nut, fitting and connecting element the ratio is true,
    (U1-U2) 16g-6,),
    where 8 is the angle at the vertex of the conical surface of the connecting element /
    Chugol at the top of the conical surface of the nozzle. Sources of information taken into account in the examination. 1. The patent of the NDP No. 64533, cl. 47 f, 19/00, 1972.
    The priority is in paragraphs 21.03 .. 78 according to claim 1 of 23.03.78 in paragraph 2.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU821726A1|1981-04-15|Pumping pipeline connection
    US6336471B1|2002-01-08|Flow system for enhancing undirectional fluid flow
    US3500757A|1970-03-17|Pressure connection of low structural height
    GB1039848A|1966-08-24|Internal combustion engine fuel injection nozzle
    US6843233B2|2005-01-18|Fuel injection system
    JP3307645B2|2002-07-24|High pressure line connection
    GB1049527A|1966-11-30|Means for making a connection to an engine manifold
    US4286550A|1981-09-01|Fuel additive injection device
    SU1041731A1|1983-09-15|Atomizer
    CN209230868U|2019-08-09|A kind of pressure testing connector and pressure testing device of high-pressure oil tube
    SU900045A1|1982-01-23|Arrangement for collecting fuel spills from i.c. engine nozzles
    JP3283595B2|2002-05-20|Fuel injection nozzle used for internal combustion engine
    US1956264A|1934-04-24|Fluid-tight joint
    US3887140A|1975-06-03|Fuel injection arrangement
    CN211422814U|2020-09-04|Novel high-pressure oil pipe structure
    SU857528A1|1981-08-23|Nozzle for diezel
    CN211779565U|2020-10-27|Large-diameter quick connector
    GB315985A|1929-07-25|Improvements in and relating to the exhaust systems of internal combustion and like engines
    SU1114809A1|1984-09-23|Device for supplying liquid coolant to cylinder of internal combustion engine
    GB1322694A|1973-07-11|Fuel injection pumps for internal combustion engines
    SU1229412A1|1986-05-07|Fuel injection high-pressure pump
    JPH0826829B2|1996-03-21|Internal combustion engine with injection system
    US1410641A|1922-03-28|Primer for gasoline engines
    SU612094A1|1978-06-25|Detachable connection
    KR19980036006U|1998-09-15|Pipe connection structure of fuel filter
    同族专利:
    公开号 | 公开日
    DD142463A1|1980-06-25|
    FR2420706B1|1984-06-29|
    NL7902147A|1979-09-25|
    DE2910678C2|1985-09-05|
    DE2910678A1|1979-09-27|
    FR2420706A1|1979-10-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2491443C2|2008-06-05|2013-08-27|Вяртсиля Финланд Ой|Piston engine fuel injection system|
    RU2499908C2|2008-06-05|2013-11-27|Вяртсиля Финланд Ой|High-pressure connecting structure with injector holder of system with common fuel line|
    RU2502888C1|2009-11-23|2013-12-27|Роберт Бош Гмбх|Pressure pipe for fuel injection system with common main|NL54747C|1939-06-07|
    DE1937975B2|1969-07-25|1972-01-05|Guido, Jürgen, Dipl Ing , 8402 Neutraubhng|PRESSURE LINE CONNECTION WITH PRESSURE LINE NIPPLE COUNTERPART AND UNION NUT|
    CH526066A|1970-12-16|1972-07-31|Guido Juergen Dipl Ing|Pressure line connection with pressure line nipple, counterpart and union nut|
    JPS4976114U|1972-10-19|1974-07-02|
    FR2233553B1|1973-06-14|1978-09-29|Guido Jurgen|DE2943744C2|1979-10-30|1992-02-27|Robert Bosch Gmbh, 7000 Stuttgart, De|
    DE3715319A1|1987-05-08|1988-11-24|Licentia Gmbh|Detachable coupling for the supply line to a Joule-Thomson cooler|
    JP2803383B2|1991-04-08|1998-09-24|トヨタ自動車株式会社|High pressure fluid fittings|
    DE4228247A1|1992-08-28|1994-03-03|Tecalemit Gmbh Deutsche|Circular cylindrical metal tube for screwing into socket - has one-piece design with sealing area of larger dia. tapering front and back.|
    DE4408721C1|1994-03-15|1995-08-24|Man Nutzfahrzeuge Ag|Screw connection for injection pipes|
    DE202012104347U1|2012-11-12|2012-11-28|Ti AutomotiveGmbh|Screw connection device for pipelines, in particular for motor vehicle pipelines|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CS177578A|CS199130B1|1978-03-21|1978-03-21|Union nut for connection of pressure pipeline,especially injection pipes of internal combustion engines|
    CS186778A|CS198703B1|1978-03-23|1978-03-23|Pipe union for connection of tubes,especially injection tubes at internal combustion engines|
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