Abstract:
본 발명은 전자제어 연료분사밸브에 관한 것으로, 기존 기계식 연료분사밸브와는 달리 엔진의 운전 조건과 독립적으로 제어 신호에 따라 연료의 분사시기와 분사량 등을 제어할 수 있도록 하고, 연료 분사의 제어 방식이 제어니들을 통해 고압의 연료를 하부압력챔버로 전달하여 노즐의 니들을 들어올리는 힘을 증가시키는 방식으로, 연료 분사의 제어가 신속하게 이루어질 수 있도록 하며, 구조가 간단하여 부품의 조립 및 교체와 더불어 부품의 정밀가공이 용이하도록 하는 전자제어 연료 분사 밸브를 제공함에 있다.
Abstract:
The invention relates to a valve assembly (11), with a valve body (14) including a central longitudinal axis (L), the valve body (14) comprising a cavity (18) with a fluid inlet portion (42) and a fluid outlet portion (40), a valve needle (20) axially movable in the cavity (18), the valve needle (20) preventing a fluid flow through the fluid outlet portion (40) in a closing position and releasing the fluid flow through the fluid outlet portion (40) in further positions, a guide (23) being arranged in the cavity (18) and being fixedly coupled to the valve needle (20), an electro-magnetic actuator unit (36) being designed to actuate the valve needle (20), the actuator unit (36) comprising an armature (22) which is arranged in the cavity (18) and is axially moveable relative to the valve needle (20), the armature (22) being designed to be coupled to the guide (23) when the valve needle (20) leaves the closing position and the armature (22) being designed and arranged to mechanically decouple from the guide (23) due to its inertia when the valve needle (20) reaches the closing position, and an armature spring (46) being arranged in the cavity (18) and being coupled to the armature (22) axially adjacent to the armature (22). The armature spring (46) is arranged to provide a force to the armature (22) contributing coupling the armature (22) with the valve needle (20). A block-shaped stop element (50) is arranged in the cavity (18) axially adjacent to the armature (22) and is fixedly coupled to the valve body (14). The stop element (50) is designed directly to limit the axial movement of the armature (22).
Abstract:
Die Erfindung betrifft ein Brennstoffeinspritzventil für Brennstoffeinspritzanlagen von Brennkraftmaschinen. Das Ventil umfasst ein elektromagnetisches Betätigungselement mit einer Magnetspule (1), einem festen Kern (2), einem äußeren Magnetkreisbauteil (5) und einem bewegbaren Anker (17) zur Betätigung eines Ventilschließkörpers (19), der mit einer an einem Ventilsitzkörper (15) vorgesehenen Ventilsitzfläche (16) zusammenwirkt. Das Ventil zeichnet sich durch seine extrem geringen Außenabmaße aus. Die gesamte axial bewegbare Ventilnadel (14) inkl. Anker (17) und Ventilschließkörper (19) weist dabei nur eine Masse m
Abstract:
Die Erfindung betrifft eine Fertigungseinrichtung (1) zur Montage eines Magnetventils (10) mit einer Laserschweißstation (L), umfassend: eine Laserquelle (2) zur Erzeugung eines Laserstrahls (3), einen Ringspiegel (4) zur Ablenkung des Laserstrahls (3) in Richtung auf das Magnetventil (10), und eine Rotationseinrichtung (15), um die Laserquelle (2) und/oder das Magnetventil (10) um eine zentrale Achse (X-X) zu rotieren, oder eine optische Einrichtung (20), welche den Laserstrahl (3) in einen kegelförmigen Laserstrahl (3) überführt, wobei in der Laserschweißstation (L) eine Schweißverbindung (7) zwischen einem Grundkörper (11) und einem dünnwandigen Bauteil (12) des Magnetventils (10) erzeugt wird.
Abstract:
The present disclosure is directed to injectors with integrated igniters providing efficient injection, ignition, and complete combustion of various types of fuels. These integrated injectors/igniters can include, for example, multiple drivers used to shape charges, controllers used to modify operations based on ionization parameters, and so on.
Abstract:
A fuel injector includes an orifice disc (140). The orifice disc (140) includes a peripheral portion (140b), a central portion (140a), and an orifice (14b). The peripheral portion (140b) is with respect to a longitudinal axis (200) and extends parallel to a base plane (150). The peripheral portion (140b) bounds the central portion (140a). The central portion (140a) includes a facet (143a) that extends parallel to a plane (152) that is oblique with respect to the base plane (150). The orifice (148) penetrates the facet (143a) and extends along an orifice axis (202) that is oblique with respect to the plane (152). As such, the orientation of the orifice (148) with respect to the longitudinal axis (200) is defined by a combination of (1) a first relationship of the plane (152) with respect to the base plane (150), and (2) a second relationship of the orifice axis (202) with respect to the plane (152). A method of forming a multi-facetted dimple (142) for the orifice disc (140) is also described.
Abstract:
The nozzle plate proposed is characterized by a longitudinal passage for a fluid, in particular fuel, the passage comprising, in the direction of flow, a filter (42), an annular chamber (47) and a continuous annular gap (35). This design enables a cohesive, tulip-shaped lamellar jet (31) to be produced which thins out in the direction of flow and then disintegrates into very small droplets. As a result, the exhaust-gas emissions of an internal-combustion engine can be reduced, as well as the fuel consumption. The nozzle plate proposed is particularly suitable for use in the valves of fuel-injection systems in mixture-compression internal-combustion engines with externally applied ignition.
Abstract:
A filter (50) is disposed internally of the fuel injector (10) between the inlet (11) and the internal valve means (26, 28) so that particulate material having an internal origin may also be prevented from reaching the injector's valve means. The filter is an electroformed screen that is supported within the fuel injector's nozzle end and is sandwiched against an internal shoulder (58) of the fuel injector.