Patent application number | Description | Published |
20100018502 | COUPLING ARRANGEMENT FOR AN INJECTION VALVE AND INJECTION VALVE - A coupling arrangement for coupling an injection valve to a cylinder head of a combustion engine has a housing with a central longitudinal axis coupled to a fuel rail at a first axial end area and to a valve body at a second axial end area of the housing, and the valve body being arranged at the central longitudinal axis having at least one first protrusion arranged facing a second axial end area of a first ring element. Furthermore, the the first ring element is arranged at least partly circumferentially the valve body at the first protrusion, wherein at a first axial end area of the first ring element the first ring element is in contact with the housing at the second axial end area and at the second axial end area the first ring element rests on the cylinder head. The first ring element has a plastic. | 01-28-2010 |
20100213286 | ADJUSTING AND FILTER ARRANGEMENT FOR AN INJECTION VALVE AND INJECTION VALVE - The injection valve has a housing and a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow in a closing position and releasing the fluid flow in further positions, and a spring element mechanically coupled to the needle and designed to exert an axial force on the needle. The adjusting and filter arrangement is arrangeable in the cavity between the inlet and outlet portion and has a filter element formed as a filtration body block and designed to filter the fluid, an adjusting element rigidly coupled to the housing and to preload the spring element and formed as an outer casing for the filter element, and a spring guiding element extending in axial direction and engaging the spring element, wherein the adjusting element and the spring guiding element form a one-piece element. | 08-26-2010 |
20100218743 | FASTENING ELEMENT AND FLUID INJECTOR ASSEMBLY - A Fastening element has a carrier. A first pair of prongs branches off a first side face of the carrier designed to be in a mechanical engagement with a protrusion of a injector cup. A second pair of prongs branches off a second side face of the carrier. The second pair of prongs is designed to retain a fluid injector and to couple mechanically to a first protrusion of the injector. A pair of pins branches off a respective prong from the second pair of prongs at a respective inner side face of the respective prong. The pins are arranged opposed to each other and in a given distance from each other and they are designed to be in a mechanical engagement with the fluid injector. A clamping device being designed to couple mechanically with the fluid injector cup and to exert a repelling force on the fluid injector cup. | 09-02-2010 |
20120286074 | VALVE ASSEMBLY AND INJECTION VALVE - A valve assembly of an injection valve may include a valve body having a cavity forming an inner guide surface and having a fluid inlet portion and a fluid outlet portion, a valve needle in the cavity that controls a fluid flow through the fluid outlet portion, the valve needle having an upper end facing the fluid inlet portion and an inner recess extending from the upper end and enabling a fluid flow inside the valve needle, a guide element in the cavity is mechanically coupled to the upper end of the valve needle and extends radially to the inner guide surface of the valve body and guides the upper end of the valve needle inside the valve body. The guide element forms a one-piece extension of the valve needle with an inner recess hydraulically coupled to the fluid inlet portion and the inner recess of the valve needle. | 11-15-2012 |
20140020657 | Fuel Injector And Fuel-Injection System - A fuel injector may include a central longitudinal axis and may be arranged in a cylinder head of a combustion engine. The fuel injector has an injector body and an adjustment device, the adjustment device including a ring element configured to be arranged in a recess of a cylinder head between the injector body and the cylinder head to align the fuel injector relative to the recess in radial direction. The ring element comprises a magnetic material. A fuel-injection system is also disclosed that includes a cylinder head of an internal combustion engine and a fuel injector as disclosed above. | 01-23-2014 |
20150041568 | Valve Assembly For An Injection Valve And Injection Valve - An injection valve assembly includes a valve body having a cavity with a fluid inlet and a fluid outlet, a valve needle axially movable in the cavity to control fluid flow through the fluid outlet, an electro-magnetic actuator unit having an armature axially movable in the cavity and having a main body and a flange axially distanced from and fixedly coupled to the main body, and a stop element fixed to the valve needle and arranged in the cavity between the main body and the flange. An armature spring in the cavity forces the stop element into contact with an inner surface of the flange. An overlapping area of the stop element and the inner surface is bounded by an inner contour and an outer contour, and an area enclosed by the outer contour is at least three times as large as an area enclosed by the inner contour. | 02-12-2015 |
20150292461 | Valve Assembly For A Fuel Injector And Fuel Injector - A valve assembly includes a valve body, a movable valve needle, a movable armature, and an elastic member. The armature is axially moveable with respect to the needle so that, when the needle is in the closing position, the armature is movable from a first position further in the second direction to a second position against the bias of the elastic member. The elastic member has a plurality of beams, each beam having a first end and a second end which are axially and radially offset with respect to each other, and the armature is operable to reduce the axial offset between the first end and the second end when moving from the first to the second position. | 10-15-2015 |