摘要:
The invention concerns a thermal compensator unit that allows to precisely set and keep an equilibrium position. Further, the fluid chambers (4, 5) respectively comprise at least one elastic element (7, 8) so that the respective volume is variable, which elastic elements (7, 8) hermetically seal the fluid chambers, which leads to the effect that no plastic or rubber dynamic sealing is necessary between the sliding parts in a hydraulic compensator, in particular since the moving parts (1) of the hydraulic compensator are preferably hermetically connected to said respective elastic element (7) and/or build a part thereof.
摘要:
The invention concerns a thermal compensator unit that allows to precisely set and keep an equilibrium position by providing an adjustable pre-compression on one of two fluid chambers (4, 5). Further, the fluid chambers (4, 5) respectively comprise at least one elastic element (7, 8) so that the respective volume is variable, which elastic elements (7, 8) hermetically seal the fluid chambers, which leads to the effect that no plastic or rubber dynamic sealing is necessary between the sliding parts in a hydraulic compensator, in particular since the moving parts (1) of the hydraulic compensator are preferably hermetically connected to said respective elastic element (7) and/or build a part thereof.
摘要:
The invention describes a fuel injector (1), a fuel rail (22) and a fuel injection system with a fuel rail and a fuel injector that are connected by a fuel tube (4). The fuel tube is flexible and elastic without changing its diameter. Using the flexible and elastic fuel tube different distances between the fuel rail and a cylinder head or a misalignment between a fuel connecting tube of the fuel rail that is connected with the fuel injector and an injection opening in a cylinder head will be compensated.
摘要:
A fluid injector has a housing (1) comprising a housing recess (4) and a fluid duct (2) both extending from one axial end of the housing (1) into the housing. An actuator unit (13) is taken in the housing recess (4). A thermal compensator unit (17) taken in the housing recess. An inlet fitting (45) comprises a fluid supply connecting part (49) for connecting the fluid injector to a fluid supply. The inlet fitting (45) is designed and fixed to the housing (1) such that it sealingly closes the housing at the one axial end of the housing (1).
摘要:
The invention relates to a metering device for dosing pressurized fluids, comprising a housing (12) with a metering opening, controlled an axially moveable valve needle (26), an axially extendable piezoelectric actuator (18), a thermal compensator unit (20), and an electrical connector (30) for supplying electrical power to the piezoelectric actuator (18). According to the invention the electrical connector (30) comprises a connector body (32) containing a first set of pins (34A, 34B, 36A, 36B) adapted to be connected with an external power supply, and a second set of pins (38A, 38B) electrically connected to the first set of pins (34A, 34B, 36A, 36B) and providing electrical contact to the piezoelectric actuator (18), wherein the first set of pins (34A, 34B, 36A, 36B) is rigidly mounted in the connector body (32) and the second set of pins (38A, 38B) is axially moveably mounted in the connector body (32) to permit rapid axial movement of the thermal compensator unit (20).
摘要:
A fuel injector assembly comprises a fuel injector 1, a fuel rail 2 and a clip 15. The clip 15 is suitable for connecting and positioning a fuel injector 1 to a fuel rail 2. The clip comprises first recess 9 being designed for retaining a fuel injector 1 and comprises a second recess 10 that communicates with the first recess 9. The second recess 10 is designed for retaining an injector guide 13 which is connected to the fuel injector 1. The clip further comprises a third recess 11 being designed for retaining a cup guide 14 of the cup 3 of the fuel rail 2.