Patents by Inventor Karlheinz Mayr
Karlheinz Mayr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6891710Abstract: Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve, particularly a pressure-control valve for clutch operation in an automatic motor vehicle transmission, and comprising an electronic control device, whereby the magnet core may be moved back and forth between a control region and a hold region with a magnetic hold position of the magnet armature and a defined transition from the control region to the hold position may be executed and whereby mechanisms are provided for recognition of the movements of the magnet armature.Type: GrantFiled: January 23, 2001Date of Patent: May 10, 2005Assignee: ZF Friedrichshafen AGInventors: Karlheinz Mayr, Markus Eisele, Robert Ingenbleek, Walter Kill, Hubert Remmlinger, Jochen Fischer, Bernd Fessler
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Publication number: 20050061374Abstract: The invention concerns a pressure control valve for the control of the value of pressure in a hydraulic circuit, especially in a hydraulic circuit of a vehicle transmission, with a valve housing, with a solenoid coil, with an armature component group comprising an armature rod, an armature and advantageously, a spring, with a yoke and with a push rod, which is interposed between the armature rod and a control element, whereby the section of the valve housing (3) in the zone of the control element (16) consists of a plastic flange (2a), and further, the armature rod (1) possesses a control boring in the longitudinal direction, in which a pin (12, 12?, 12?) is inserted, the material and dimensioning are so selected, that the pin can compensate for a temperature based longitudinal change of the plastic flange (2a).Type: ApplicationFiled: September 21, 2004Publication date: March 24, 2005Inventors: Thies Hameister, Walter Kill, Karlheinz Mayr, Wolfgang Schmid
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Patent number: 6837477Abstract: A proportional pressure-regulator valve comprising a load-dependent control step and a method for the load-dependent regulation of a pressure level of a pressure medium with one proportional pressure-regulator valve. The load-dependent control step is obtained with a proportional magnet (1) having at least two gaps (10, 12) for regulating the magnetic force. The size of the gaps (10, 12) can be adjusted independently of each other. While a first gap (!2) is current-dependent regulated, the size of the second gap (10) can be regulated via a pressure force adaptable in proportion to a load requirement in the hydraulic circuit.Type: GrantFiled: September 17, 2003Date of Patent: January 4, 2005Assignee: ZF Friedrichshafen AGInventors: Karlheinz Mayr, Walter Kill, Thilo Schmidt, Gunter Philipp, Hubert Remmlinger
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Publication number: 20040155215Abstract: An electromagnetic dual-action control valve with a housing (2), with connections (15, 16, 17) for inflow and outflow lines for a pressure medium, with a solenoid (3) and with two armatures arranged to move within the solenoid (3) for opening and closing the line connections. To simplify the structure of such a dual-action control valve, it is provided that one of the armatures is formed as a hollow armature (4) with a closed end (11), within which an inner armature (5) is arranged to move coaxially, and the hollow armature (4) has openings (20, 21) for the pressure medium, of which one opening (21) can be closed by a sealing surface (13) of the inner armature (5).Type: ApplicationFiled: February 5, 2004Publication date: August 12, 2004Inventors: Walter Kill, Jurgen Halter, Hubert Remmlinger, Karlheinz Mayr
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Publication number: 20040130421Abstract: A proportional pressure control valve (1) for controlling the pressure level in a hydraulic circuit having a push rod (5) as a connection between a control element (13) arranged in the hydraulic circuit and a proportional magnet located in a housing (10), which comprises a magnetic core (2), a magnetic anchor (3), and a magnetic coil (4), the magnetic coil (4) and the magnetic core (2) are securely connected to the housing (10), and the magnetic anchor (3) can be moved axially back and forth between two end positions by means of a magnetic force. At least one part of the magnetic anchor (3, 3″) is arranged so as to be movable relative to the anchor rod (6) in dependence upon the magnetic flow, so that in this way either the gaps (11, 14) are enlarged and/or an additional second gap (8) is produced.Type: ApplicationFiled: October 17, 2003Publication date: July 8, 2004Inventors: Karlheinz Mayr, Thilo Schmidt
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Publication number: 20040056227Abstract: A proportional pressure-regulator valve comprising a load-dependent control step and a method for the load-dependent regulation of a pressure level of a pressure medium with one proportional pressure-regulator valve. The load-dependent control step is obtained with a proportional magnet (1) having at least two gaps (10, 12) for regulating the magnetic force. The size of the gaps (10, 12) can be adjusted independently of each other. While a first gap (!2) is current-dependent regulated, the size of the second gap (10) can be regulated via a pressure force adaptable in proportion to a load requirement in the hydraulic circuit.Type: ApplicationFiled: September 17, 2003Publication date: March 25, 2004Inventors: Karlheinz Mayr, Walter Kill, Thilo Schmidt, Gunter Philipp, Hubert Remmlinger
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Patent number: 6669309Abstract: The invention relates to a vibration damper for damping fluid vibrations in a hydraulic system, especially in a hydraulic control circuit for a motor vehicle gear box with an elastically deformable damper element (31), According to the invention, the vibration damper is provided with a separate sealing element (32) which guarantees the functioning of the hydraulic system in the event of a breakdown e.g. the damper element (31) bursting.Type: GrantFiled: May 3, 2001Date of Patent: December 30, 2003Assignee: ZF Friedrichshafen AGInventors: Georg Gierer, Willy Holdenried, Hubert Remmlinger, Karlheinz Mayr, Herbert Kiebler
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Patent number: 6666430Abstract: The invention relates to a proportional valve, especially for regulating the shifting pressure in an automatic transmission for a motor vehicle. The inventive valve is subdivided into a hydraulic section and into an electric section by a magnetic interface (XXXX). The bearing points (1, 2) of the hydraulic valve slide are arranged on the side of the valve opposite the electric coil, i.e. in the hydraulic section, so that the armature (5) projects into the coil space in a floating manner.Type: GrantFiled: January 17, 2002Date of Patent: December 23, 2003Assignee: ZF Friedrichshafen AGInventors: Hubert Remmlinger, Karlheinz Mayr, Wolfgang Runge
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Patent number: 6619615Abstract: A proportional pressure control valve is described capable of serving as a pilot, servo or direct control valve and having a pressure reducing function and a pressure maintaining function. The valve is comprised essentially of a valve housing (2) with inlet and outlet ports (4, 5, 6), a control element (7), an armature rod (8) and a proportional magnet (3). The proportional magnet (3) is an assembly of a magnet core (10), a magnet armature (11) and a magnet coil (12), whereby the proportional magnet (3) when in its range of operation possesses a nearly constant magnetic strength. In accord with the invention, when in a holding position of the magnetic armature (11) the smallest possible gap (13) exists between the magnet armature (11) and the magnet core (10).Type: GrantFiled: July 26, 2001Date of Patent: September 16, 2003Assignee: ZF Friedrichshafen AGInventors: Karlheinz Mayr, Markus Eisele, Thilo Schmidt, Walter Kill, Hubert Remmlinger, Jochen Fischer, Robert Ingenbleek
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Patent number: 6607176Abstract: A proportional pressure control valve serves as a direct control valve with a pressure reducing function and a pressure holding function. The valve, includes a valve housing (2) with inlet and outlet . ports (4, 5, 6), a control element (7) which has a feedback facility, an armature rod (15) and a proportional magnet (3). The proportional magnet is comprised of a magnet core (17), a magnet armature (16) and a magnet coil (18), wherein this proportional magnet (3) in its operational range possesses a nearly constant magnetic force. In accordance with the invention, in a holding position of the magnet armature (16), the smallest axial space (21) between the magnet armature (16) and the magnet core (17) is so dimensioned, first, that the magnetic force between these two components (16, 17) when in the holding position is greater than the magnetic force in the operational zone of the proportional magnets (3), and second, that the magnet armature (16) can be fixed in the holding position by this magnetic force.Type: GrantFiled: June 20, 2001Date of Patent: August 19, 2003Assignee: ZF Friedrichshafen AGInventors: Karlheinz Mayr, Markus Eisele, Walter Kill, Michael Weber, Hubert Remmlinger, Jochen Fischer
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Publication number: 20030037825Abstract: A proportional pressure adjustment valve is described which comprises one valve part with inlet and outlet openings (4) and at least one closing mechanism (7) for control of a valve (12), the same as a magnet part having one magnet core, one magnet coil and one displaceably disposed magnet armature. An actuating element (11) cooperates with the armature, actuating the spherical closing mechanism (7). The hydraulically active cross section of the valve (12) is essentially determined by the length of the valve (L), the diameter of the valve (D) and th diameter (d) of the part (13) of the actuating element (11) which penetrates into the valve. According to invention, the ratio of the length of the valve (L) to the diameter of the valve (d) is less than 2.0.Type: ApplicationFiled: September 19, 2002Publication date: February 27, 2003Inventors: Wolfgang Runge, Hubert Remmlinger, Karlheinz Mayr, Wolfgang Schmid, Thilo Schmidt
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Publication number: 20030011454Abstract: Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve, particularly a pressure-control valve for clutch operation in an automatic motor vehicle transmission, and comprising an electronic control device, whereby the magnet core may be moved back and forth between a control region and a hold region with a magnetic hold position of the magnet armature and a defined transition from the control region to the hold position may be executed and whereby mechanisms are provided for recognition of the movements of the magnet armature.Type: ApplicationFiled: July 18, 2002Publication date: January 16, 2003Inventors: Karlheinz Mayr, Markus Eisele, Robert Ingenbleek, Walter Kill, Hubert Remmlinger, Jochen Fischer, Bernd Fessler
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Publication number: 20030006391Abstract: The oil supply with an orientation toward requirements in a transmission is implemented by a system of control and regulating modules. Mentioned in particular, here is a combined control and regulating module that is electronically driven and mechanically regulates the pressure. The controlled variable is a coil current that increases proportionally as the pressure increases. One disadvantage is that, in the case of a system failure, no coil current flows and the pressure is also minimal. In the present invention, by contrast, a maximum pressure is provided in the hydraulics even without current. This ensures that during a system failure that the operation of control elements that can only be shifted using high pressure will continue. This is implemented via a combined control and regulating module. The control unit is a magnet system that moves the regulating module and a sliding valve (14).Type: ApplicationFiled: May 16, 2002Publication date: January 9, 2003Inventors: Karlheinz Mayr, Markus Eisele, Walter Kill, Hubert Remmlinger, Robert Ingenbleek, Harry Nolzen, Torsten Buchner
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Patent number: 6419530Abstract: An electric plug-in connector (11) having at least two coaxial round contacts (12, 13) provided on an electric component, e.g. a pressure regulator (10) or the like, wherein one round contact, preferably the inner round contact (12), contains an adjustment mechanism. There is further provided one connector (17) having at least two plug-in contacts for connection with the round contacts (12, 13). The plug-in connector (11) has hooks which are configured in such a way that in a plane which extends, e.g. perpendicular to the longitudinal axis (21) of the round contacts (12, 13), the connector (17) can be inserted onto the round contacts from any direction and can be locked thereon and/or on the pressure regulator (10) and the adjustment mechanisms is freely accessible in the inner round contact (12).Type: GrantFiled: November 2, 2000Date of Patent: July 16, 2002Assignee: ZF Friedrichshafen AGInventors: Willy Holdenried, Hubert Remmlinger, Karlheinz Mayr, Wolfgang Schmid
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Patent number: 6418967Abstract: Pressure regulating valve comprising a connection for a pressure line (P), a connection for a working line (A), a connection for an outlet line (T) communicating with the ambient pressure and at least two diaphragm stages with defined or definable drag, the two diaphragm stages being connected to each other in a variable manner and subject to mechanical or hydraulic action according to the principle of the hydraulic half bridge. The two variable diaphragm stages are provided as the inlet and outlet diaphragms of a pressure regulating chamber (7) and each has a sealing element, said sealing element (5) of the inlet diaphragm (3) is designed as ball, or calotte, ortruncated cone, or cylinder and/or the sealing element of the outlet diaphragm is designed as ball, or calotte, or truncated cone, or cylinder.Type: GrantFiled: October 7, 1999Date of Patent: July 16, 2002Assignee: ZF Friedrichshafen AGInventors: Walter Frei, Georg Gierer, Wolfgang Runge, Hubert Remmlinger, Karlheinz Mayr, Wolfgang Schmid, Thilo Schmidt
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Publication number: 20020053362Abstract: Pressure regulating valve comprising a connection for a pressure line (P), a connection for a working line (A), a connection for an outlet line (T) communicating with the ambient pressure and at least two diaphragm stages with defined or definable drag, the two diaphragm stages being connected to each other in a variable manner and subject to mechanical or hydraulic action according to the principle of the hydraulic half bridge. The two variable diaphragm stages are provided as the inlet and outlet diaphragms of a pressure regulating chamber (7) and each has a sealing element, said sealing element (5) of the inlet diaphragm (3) is designed as ball, or calotte, or truncated cone, or cylinder and/or the sealing element of the outlet diaphragm is designed as ball, or calotte, or truncated cone, or cylinder.Type: ApplicationFiled: October 7, 1999Publication date: May 9, 2002Inventors: WALTER FREI, GEORG GIERER, WOLFGANG RUNGE, HUBERT REMMLINGER, KARLHEINZ MAYR, WOLFGANG SCHMID, THILO SCHMIDT