Patent application number | Description | Published |
20080314120 | Method and Device for Determining Hydraulic Leakage Rate in Liquid-Conveying Sections, in Particular, Injection Valves of Internal Combustion Engines - A method and device for determining the hydraulic leakage rate of liquid-conveying parts, in particular injection valves for internal combustion engines, place the liquid-conveying part into a test body, and the liquid-conveying part is charged with a test liquid under a particular pressure, and a carrier gas stream is provided in a flow duct of the test body, and a vapor mixture behind the liquid-conveying part is conducted to an analyzer, and a measurement and analysis are carried out, using the analyzer, of the hydraulic leakage rate of the liquid-conveying part via the concentration of test liquid in the vapor mixture, the carrier gas stream being brought in via a nozzle element close to the leakage point of the liquid-conveying part, and/or a heating of the vapor mixture being provided behind the liquid-conveying part for complete conversion into the gas phase. The testing device is particularly suitable for leakage measurement in fuel injection valves used in fuel injection systems of mixture-compressing externally ignited internal combustion engines. | 12-25-2008 |
20090033448 | Device Having a Shape Memory Element - Conventional devices have a valve needle and a shape memory element which, by the application of a controllable magnetic field, executes a control stroke travel that operates the actuator, and having a coil that excites the magnetic field which is situated in a magnet housing which, at its end face, is bordered with respect to an actuating axis by a front wall in each case, the front walls having a through opening radially within the coil. It is a disadvantage that the magnetic field excited around the coil is conducted unfavorably, so that at most a slight magnetic field develops in the shape memory element. The shape memory element has a magnetic field flowing through it, in the direction of its longitudinal extension, if at all. Since the shape memory element has a high magnetic resistance and is developed to be very long in the axial direction, only a very weak magnetic field can be induced in the shape memory element. In response to the magnetic field that is weak at most, the shape memory element can generate only a very slight lift of the valve needle. In the device according to the present invention, a strong magnetic field is conducted through the shape memory elements, and in this way, a large control stroke travel is achieved. The shape memory element(s) is/are positioned generally only in the through opening(s). | 02-05-2009 |
20100006068 | FUEL INJECTOR - A fuel injector for fuel injection systems of internal combustion engines is described. The fuel injector includes an electromagnetic actuating element having a magnetic coil, a core and a valve jacket as the outer magnetic circuit component and a movable valve-closure member which interacts with a valve-seat surface assigned to a valve-seat member. The core and a connecting tube in an inner opening of a thin-walled valve sleeve and the valve jacket on the outer circumference of the valve sleeve are firmly connected to the valve sleeve by pressing them therein/thereon. The fixed press connection between two of these metallic components of the fuel injector is characterized in that at least one of the component partners has a structure including grooves in its press area and/or the particular press area has an inlet rounding in at least one transition to an adjacent component section. | 01-14-2010 |
20110177286 | COMPONENT COMPOSITE AND METHOD FOR MANUFACTURING A COMPONENT COMPOSITE - A component composite, in particular for motor vehicle applications, include a first component having a first contact surface and at least one second component having a second contact surface, which presses against the first contact surface, the first contact surface having a surface structure, which is produced using electromagnetic radiation. The surface structure has a microstructure overlaid by a nanostructure. | 07-21-2011 |
20120000994 | DEVICE FOR INJECTING FUEL - A device for injecting pressurized fuel includes an electrodynamic actuator having a movably situated coil, an outwardly opening needle which opens and closes a cross section on a valve seat, a connecting device which connects the needle to the movably situated coil, a pressure chamber which is situated at the needle upstream from the valve seat and contains pressurized fuel, a low-pressure chamber from which, fuel is dischargeable, and a gap seal which is provided at an outer peripheral region of the needle, the gap seal ( | 01-05-2012 |
20120012679 | DEVICE FOR INJECTING FUEL - A device for injecting fuel includes an electrodynamic drive having a movably situated coil, an inwardly opening needle which opens and closes injection holes on a valve seat, a connecting element which connects the needle to the movably situated coil, and a pressure chamber which is situated at the needle upstream from the valve seat and contains pressurized fuel. | 01-19-2012 |
20120043400 | ATOMIZER FOR LIQUIDS, METHOD FOR THE MANUFACTURE THEREOF, AND USE THEREOF - An atomizer is described for liquids, in particular for delivering water in a shower, having an outlet on a liquid supply line for spraying liquids at a low flow rate, the outlet having at least two nozzles for generating liquid jets and for atomizing. The present atomizer is based on the object of optimizing a washing device for delivering water, in particular in a shower, and providing a cost-effective embodiment of a shower head. The atomizer is characterized in that at least one atomizer attachment is provided, which includes at least one atomizer plate, which is convexly curved in the jet direction, and is inserted into the outlet, and at least one slot or multiple slots positioned in parallel directions to one another are introduced into the atomizer plate. The atomizer plate, which is convexly curved in the jet direction, is bent in a shell shape and/or channel shape. | 02-23-2012 |
20120207974 | COMPONENT COMPOSITE AND METHOD FOR MANUFACTURING A COMPONENT COMPOSITE - A component composite, in particular for motor vehicle applications, including a first component having a first contact surface, the first contact surface having a surface structure which has a microstructure overlaid by a nanostructure, and including at least one second component having a second contact surface. A medium, in particular an adhesive layer, is situated for integral connection between the two contact surfaces of the two components. | 08-16-2012 |
20120325939 | POLE BODY FOR SOLENOID VALVES PRODUCED BY MULTI-COMPONENT MIM - An injector having a valve opening, a cylindrical pipe, a valve opening, a valve needle situated inside the pipe in the radial direction and guided to allow axial displacement; a solenoid coil situated outside the pipe in the radial direction; a solenoid core disposed inside the pipe in the radial direction; and a magnetic armature situated inside the pipe, opposite the solenoid core in the radial direction, the magnetic armature being disposed on the valve needle. The pipe is a magnetic first material in a first pipe region and a third pipe region, the first region facing the valve opening in the axial direction, and the third pipe region facing away from the valve opening in the axial direction. The pipe is a non-magnetic second material in a second pipe region, the second pipe region being between the first pipe region and the third pipe region in the axial direction. | 12-27-2012 |
20130055988 | COMPONENT OF A FUEL INJECTION SYSTEM AND FUEL INJECTION SYSTEM - A component of a fuel injection system, designed in particular as a fuel distributor or a fuel injector, includes a base body on which at least one electric line is provided. The electric line is applied to the base body by plasma coating. In addition, a fuel injection system, used in particular for motor vehicles, includes a fuel distributor and multiple fuel injectors mounted on the fuel distributor. | 03-07-2013 |
20130068198 | FUEL DISTRIBUTOR - A fuel distributor, which is used, in particular, for fuel injection systems of mixture-compressing, internal combustion engines having externally supplied ignition, includes a distributor pipe, a first holder and at least one second holder. The distributor pipe has a longitudinal axis. In this connection, the first holder and the second holder are situated at the distributor pipe so as to be axially set apart from one another with respect to the longitudinal axis. The distributor pipe is designed to allow axial length compensation. It is also possible for at least one holder to be designed to allow axial length compensation. | 03-21-2013 |
20130248744 | METHOD FOR MANUFACTURING A SOLENOID VALVE - A method is described for manufacturing a solenoid valve, in particular a fuel injector, the solenoid valve having a valve needle which is movably guided in the axial direction, a magnet core and an armature which is situated axially diametrically opposed to the magnet core, the armature being situated on the valve needle, the armature having a first base material and a first reinforcing element and the magnet core having a second base material and a second reinforcing element. The method has one method step. The first reinforcing element is applied to the first base material and/or the second reinforcing element is applied to the second base material during the method step with the aid of molten bath spraying or with the aid of cold gas spraying. | 09-26-2013 |
20130306762 | FUEL INJECTION VALVE - A fuel injector for fuel-injection systems of internal combustion engines includes an electromagnetic actuating element having a solenoid coil, a fixed core, an outer magnetic circuit component, and a movable armature for actuating a valve-closure element, which cooperates with a valve-seat surface provided on a valve-seat element. The injector is characterized by its extremely small outer dimensions. The flexibility in the installation of fuel injectors of varying valve lengths, which is made possible very simply due to the special modular design, is significantly increased in this manner. An optimized dimensioning of the electromagnetic circuit allows for a DFR (dynamic flow range) greater than 17, the DFR being defined as the quotient of q | 11-21-2013 |
20140008468 | FUEL INJECTOR - A fuel injector for fuel injection systems of internal combustion engines. The valve includes an electromagnetic actuating element which has a solenoid, a solid core, an external magnetic circuit component, and a movable armature for activating a valve closing member which cooperates with a valve seat surface provided on a valve seat member. The valve has extremely small outer dimensions. By optimizing the dimensions of the electromagnetic circuit, the outer diameter of the external magnetic circuit component in the peripheral area of the solenoid is 10.5 mm01-09-2014 | |
20140028297 | ENCODER ELEMENT AND METHOD FOR PRODUCTION THEREOF - A method for producing an encoder element having a base body and a magnetic plastics element includes providing the base body and mixing a plastics base material with a magnetic or magnetizable filler to form an injection-molding material. The method also includes spraying the injection-molding material onto the base body so that a material-bonding, direct connection is produced between the base body and the sprayed-on plastics element. The method also includes magnetizing the sprayed-on plastics element. | 01-30-2014 |
20140123945 | FUEL DISTRIBUTOR - A fuel distributor which is used particularly for fuel injection systems of mixture-compressing, spark ignition internal combustion engines, includes a first half shell and a second half shell. A fuel chamber is embodied between the half shells. A plurality of cups is embodied on the first half shell and/or on the second half shell. The first half shell and the second half shell are connected to each other in a continuous material manner. Such a fuel distributor is especially suitable for medium pressure, particularly between 5 MPa and 7 MPa. | 05-08-2014 |
20140305409 | Fuel System - A fuel system comprises a first reservoir for a first fuel in liquid phase that has a first vapor pressure, and a second reservoir for a second fuel in liquid phase that has a second vapor pressure. The second vapor pressure is higher than the first vapor pressure. The fuel system further includes a mixing device for mixing the first fuel in liquid phase with the second fuel in liquid phase, and an injector which is hydraulically connected to the mixing device and is configured so that as, or immediately after, the mixture passes through an outlet opening of the injector, the second fuel changes from the liquid phase to a gaseous phase. | 10-16-2014 |
20140346383 | METHOD FOR MANUFACTURING A MAGNETIC SEPARATION FOR A SOLENOID VALVE - A method for manufacturing a solenoid valve or a fuel injector, including a sleeve, a valve needle situated inside the sleeve in a radial direction and guided so as to slide, a solenoid coil situated outside of the sleeve in a radial direction, a magnetic core situated inside the sleeve in a radial direction, and a magnet armature situated inside the sleeve in a radial direction, axially opposite to the magnetic core; the magnet armature being situated on the valve needle, the sleeve having a low wall thickness in a thin-walled region situated between the magnet armature and the solenoid coil, the thin-walled region strengthened by a reinforcing element for absorbing radial forces; and a method step, during which, the reinforcing element is deposited onto the sleeve, in the thin-walled region, in a radial direction, outside of the sleeve, using a molten bath or cold gas spraying method. | 11-27-2014 |