Zf Friedrichshafen Ag

Svm Schultz Verwaltungs-Gmbh Co. Kg

Karlheinz Mayr

Hubert Remmlinger

Markus Moosmann

Thilo Schmidt

Walter Kill

Wolfgang Schmid

Frank Hamma

Markus Eisele

Wolfgang Runge

Jochen Fischer

Georg Gierer

Robert Ingenbleek

Willy Holdenried

Tobias Nusser

Florian Pawlak

Stefan Renner

Josef Bader

Helmut Mang

Georg Scherer

Reiner Keller

Bernd Fessler

Kai Heinrich

Walter Frei

Oliver Küpfer

Dominik Guldenschuh

Michael Linder

Ralph Böhm

Herbert Kiebler

Michael Weber

Mark Pelzl

Marc Ruhstorfer

Thies Hameister

Stefan Meschenmoser

Jürgen Halter

Gunter Philipp

Florian Schreiber

An electromagnetic actuator () for an assembly, which has a fluid space configured to be fluidically connected to the actuator when the actuator is installed in the assembly, includes a movable armature in an armature space (). The armature includes a movable armature rod (). The actuator is configured to fill the armature space () with fluid, such as oil, via axial movements of the armature rod that draw fluid from the fluid space into the armature space () through a fluid path when the armature rod is fluidically connected to the fluid space.

Filling an armature space of an actuator

A bridge element () for establishing an electrical connection and at least one mechanical connection between an actuator () and a bridge element () for a transmission control unit of a transmission includes first electrical contacts () and second electrical contacts (), which are connected to the first electrical contacts () with electrical conductors (), and at least first mechanical connecting elements () proximate the first electrical contacts ().

Bridge element for establishing an electrical connection, and arrangement

An assembly element for establishing an electrical contact to an actuator for a vehicle transmission may include a base plate and two electrical circuit points projecting on one side of the base plate for the assembly element. The assembly element has a shavings protection device provided at least partially between the electrical circuit points, which is designed to at least partially impede a short circuit between the contacts when the assembly element is in contact with the actuator.

Assembly element for an actuator

The invention relates to a pressure control valve, composed of at least a valve component; situated between a control chamber and a return chamber, the valve component has an orifice, which a control element can close, partially close, or open, and the control element has at least one, at least truncated cone-like first control element region with a truncated cone angle and the orifice is formed by a through opening, which extends through the orifice element and at its end oriented toward the control element, has at least one cone-like, in particular first, orifice region with a cone angle; and the cone angle is greater than the truncated cone angle.

Pressure control valve with control element

An electromagnetic actuator with at least one solenoid coil, one armature, which is magnetically movable by means of the solenoid coil in an armature area and has a first and a second tapering, and a magnetic yoke. The yoke has a first dipping stage in which the first tapering of the armature is dipped upon a shifting of the armature in a direction of actuation, and a second dipping stage in which the second tapering of the armature is dipped upon a shifting of the armature in the direction of actuation. A maximum radial external dimension of the armature in the area of the second tapering is smaller than a minimum radial internal dimension of the second dipping stage. In addition, the invention refers to a fluid valve that is actuated by means of the electromagnetic actuator.

Electromagnetic actuator and fluid valve with such an actuator

A pressure-control valve device for a fluid, having at least one inlet area and first and second outlet areas that can be flow-connected to one another by two seat valves coupled to one another, in which a fluid flow from the inlet area to the first and second outlet areas can be adjusted by the first seat valve and a fluid flow between the first and second outlet areas can be adjusted by the second seat valve. The first seat valve is designed as a valve aperture with a valve opening and a valve control edge and with a ball-shaped closing element that co-operates with the valve control edge. The valve opening and the ball-shaped closing element are designed such that the ratio of the diameter of the valve opening to the diameter of the ball-shaped closing element is equal to at least 0.75.

Pressure control valve device

A valve device having at least one inflow area and first and second outflow areas, which are connected with one another with regard to the flow through two poppet valves. Through the first poppet valve, a fluid inflow from the inflow area to the first and second outflow areas can be adjusted and a fluid outflow, through the second poppet valve between the first and the second outflow areas can be adjusted. The second poppet valve is designed as a cone poppet valve with a cone shaped closure body. Located upstream of the second poppet valve, between the first and the second outflow area, is a flow guide device which is designed to provide the fluid, which flows in the direction of the second poppet valve, with a swirl. The closure body of the second poppet valve has a cone angle of 60&#xb0;+/&#x2212;10&#xb0;.

Valve device with a flow guiding device

A locking apparatus, particularly of a parking brake device for a vehicle with an automatic transmission, which has a piston unit positioned inside a housing and is axially displaced and locked in a pre-defined axial position, and a catch device that automatically activates when the piston unit is locked to hold the piston unit. The catch device has at least one spring arm actively connected with the piston unit when the piston unit is locked, the spring arm abuts the piston unit in locked position with a catch area. The spring arm has a recess in a longitudinal plane of the spring arm. The piston unit penetrates the recess of the spring arm at least approximately in a radial direction with a section that forms the catch area, so that when the piston unit is locked, the catch area within the longitudinal plane of the spring arm.

Locking apparatus

A pressure control valve unit () for a fluid with at least one inlet area (P) and first and second outlet areas (A, T) which can be connected for fluid flow with one another by two mutually coupled seat valves (). An incoming fluid flow, from the inlet area (P) to the first and second outlet areas (A, T), can be adjusted by way of the first seat valve (), and a fluid outflow, between the first and second outlet areas (A,T), can be adjusted by way of the second seat valve (). In this case, a flow-guiding device () is arranged, upstream from the first seat valve () in the inlet area (P), and imposes a specific flow characteristic upon the inflowing fluid in the area of the first seat valve ().

Pressure control valve apparatus having a flow-guiding device

A device for the mechanical fastening and electrical contact with at least one control element (), having first electrical contacts (), within a housing (). Mating second electrical contacts () are arranged on a connecting element () which can also be plugged into the housing (). During assembly, the at least one control element () and the connecting element () are both plugged into the housing () so that such plugging engagement achieves electrical connection between the first electrical contacts () and the second electrical contacts () and, at the same time, an interlocked fastening of the at least one control element () with the housing ().

Device for fastening and contacting actuators

A pressure control valve device with at least one inlet area and first and second outlet areas which can be connected by two poppet valves. A flow guide device (), with inflow and outflow areas () for guiding the fluid flowing from the inlet area in a defined manner in the direction of the second poppet valve, is located upstream of the second poppet valve, between the first and second outlet areas. The fluid in the flow guide device () passes in the area between the inflow and outflow areas () through a plurality of channel areas distributed around the periphery of the flow guide device () and separated from one another, which are shaped at least approximately helically and impart an at least approximately vortex-like flow pattern to the fluid flowing in the direction of the second poppet valve downstream of the outflow area ().

A proportional pressure control valve for regulating the pressure level in a hydraulic circuit including a magnet part and a valve part. The valve part includes an inflow opening for the inflow volume flow and two discharge openings. The first discharge opening is for an operating pressure connection and the second discharge opening is for a tank volume flow. The valve part also has a ball seat and a flat seat with an opening. A closing member is operable to control a flow rate through the opening of the flat seat. The valve part also includes a stream deflector disposed between the ball seat and the flat seat that has a circumferential surface configured to deflect a stream filament of the flow by an angle of &#x2266;30 degrees.

Proportional pressure control valve for regulating the pressure level in a hydraulic circuit, particularly in a hydraulic circuit of an automated transmission

An electromagnetic proportional pressure-control valve of a vehicle transmission which includes a magnet part, a hydraulic part and a spring operatively connecting the magnet part to the hydraulic part. The magnet part includes a coil, an armature and an armature bar. The hydraulic part includes first and second closing elements. The first closing element forms a flat seat and the second closing element a ball seat and the closing elements are opened and/or closed via a tappet rod. When no current is applied to the valve, the second closing element is closed and an gap (&#xfc;) in the first closing element is larger than one seventh a nominal width (NW) of the valve. The second closure area (A_2) is larger than a circular area having a diameter corresponding to double the gap and the diameter (s) of the tappet rod is smaller than 0.7 times the diameter (b) of the orifice.

Proportional pressure control valve comprising a pressure jump in the characteristic p/l curve thereof

A shifting device () for a transmission with a selection actuator and a shifting actuator, which a shifting shaft () comprising shifting forks () or selector forks, which engage in sliding collars for engaging the gears in which the shifting motion can be carried out by way of an axial motion of the shifting shaft (), while the selection motion is kinematically disengaged from the shifting motion and the shifting shaft () does not rotate during the selection motion.

Shifting device for a transmission

Proportional pressure control valve with a magnetic part and a valve part, the valve part has an inflow opening for the inflow stream, a first outflow opening for the filling stream, and a second outflow opening for the tank volume stream, and has a ball seat, a flat seat with an opening, a closing part for controlling the throughput quantity through the opening of the flat seat, and a stream diverter. The inflow opening faces away from the magnetic part and coaxially to its longitudinal axis, and the outflow openings are constructed on the side wall of the valve part radially to its longitudinal axis, so that fluid flowing from through the valve is exposed to a diversion of a maximum of 90&#xb0;. The fluid, after flowing through the ball seat and to and through the stream diverter, experiences a diversion of less than 30&#xb0;.

Growing community of inventors

Bregenz, Austria

Karlheinz Mayr