Patents by Inventor Olaf Ohligschlaeger
Olaf Ohligschlaeger 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: 11506198Abstract: A multiflow pump for fluids, having an electromagnetic translator drive, a displacement piston unit, a pump head, and at least one outlet valve device. The displacement piston contains a bearing journal with a spring receptacle, a carrier plate, and a plurality of pump pistons, wherein the displacement piston unit is configured in one piece.Type: GrantFiled: February 25, 2020Date of Patent: November 22, 2022Assignee: Thomas Magnete GmbHInventors: Thomas Rolland, Olaf Ohligschläger, Bernd Köhler, Edwin Kreuzberg, Tabea Krah, Mike Heck
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Publication number: 20200300238Abstract: A multiflow pump for fluids, having an electromagnetic translatory drive, a displacement piston unit, a pump head, and at least one outlet valve device. According to the teachings, there is provision that the displacement piston contains a bearing journal with a spring receptacle, a carrier plate, and a plurality of pump pistons, wherein the displacement piston unit is configured in one piece.Type: ApplicationFiled: February 25, 2020Publication date: September 24, 2020Inventors: Thomas ROLLAND, Olaf Ohligschläger, Bernd Köhler, Edwin Kreuzberg, Tabea Krah, Mike Heck
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Patent number: 9464628Abstract: The invention relates to a pump for pumping a fluid, including an inlet, an outlet, and a pumping chamber, wherein a valve is arranged between the inlet and the pumping chamber or between the pumping chamber and the outlet. The valve includes a valve body having a valve seat pointing in the direction of the outlet, and a valve member that interacts with the valve seat, wherein the valve member is loaded under pre-loading against the valve seat into a closed position of the valve and allows fluid to pass through in a pumping direction due to the valve member lifting off against the pre-load, wherein the valve body is accommodated in a receptacle of a pump part. A pump for which the development of noises and vibrations is reduced in that the valve body can move axially relative to the receptacle that accommodates the valve body.Type: GrantFiled: September 26, 2012Date of Patent: October 11, 2016Assignee: Thomas Magnete GmbHInventors: Axel Mueller, Olaf Ohligschlaeger, Stefan Quast, Michael Feckler
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Patent number: 9359999Abstract: The invention relates to a reciprocating piston pump having a magnet drive and a first displacement chamber and a second displacement chamber, which are separated from each other by a piston, wherein both displacement chambers are connected to each other by a fluid-conducting channel. An overflow valve is arranged in the channel and allows a preferred flow from the first displacement chamber to the second displacement chamber, wherein an additional return valve is arranged either in a transition region between an inlet and the first displacement chamber or in a transition region between the second displacement chamber and an outlet, an armature of the magnet drive being firmly connected to the piston.Type: GrantFiled: August 22, 2013Date of Patent: June 7, 2016Assignee: Thomas Magnete GmbHInventors: Olaf Ohligschlaeger, Axel Mueller, Thomas Rolland, Stefan Quast, Rene Schulz
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Publication number: 20150104338Abstract: The invention relates to an electromagnetic pump comprising precisely one coil, wherein the one coil has a longitudinal axis, a ferromagnetic first core section at least partially arranged in the one coil, a ferromagnetic second core section at least partially arranged in the one coil, and a ferromagnetic armature, wherein a primary air gap is arranged between the armature and the first core section, wherein a radial secondary air gap is arranged between an insertion section of the armature and a receiving section of the second core section facing the longitudinal axis, wherein the ferromagnetic armature has a truncated cone-shaped contour narrowing in the stroke direction in a front section facing the first core section, wherein a magnetic force between the armature and the first core section is greater in a closing process of the first air gap; than a magnetic force between the armature and the second core section.Type: ApplicationFiled: December 19, 2014Publication date: April 16, 2015Inventors: Axel Mueller, Michael Mueller, Olaf Ohligschlaeger, Robert Wellnitz
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Patent number: 8696330Abstract: The invention relates to a reciprocating piston pump for delivering a liquid. The pump includes a solenoid with an actuator and an outlet port. A check valve with a seat body is assigned to the outlet port for keeping a return flow of the liquid out of the reciprocating piston pump. The seat body bears an impact damping face at a front face facing away from a valve seat of the check valve, and the valve seat of the check valve and the impact damping face are made from the same elastomer material.Type: GrantFiled: November 3, 2009Date of Patent: April 15, 2014Assignee: Thomas Magnete GmbHInventors: Olaf Ohligschlaeger, Axel Mueller, Michael Mueller, Andreas Monzen, Stefan Quast, Bernd Koehler, Michael Feckler
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Publication number: 20130343921Abstract: The invention relates to a reciprocating piston pump having a magnet drive and a first displacement chamber and a second displacement chamber, which are separated from each other by a piston , wherein both displacement chambers are connected to each other by a fluid-conducting channel. An overflow valve is arranged in the channel and allows a preferred flow from the first displacement chamber to the second displacement chamber, wherein an additional return valve is arranged either in a transition region between an inlet and the first displacement chamber or in a transition region between the second displacement chamber and an outlet, an armature of the magnet drive being firmly connected to the piston.Type: ApplicationFiled: August 22, 2013Publication date: December 26, 2013Inventors: Olaf Ohligschlaeger, Axel Mueller, Thomas Rolland, Stefan Quast, Rene Schulz
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Publication number: 20100111728Abstract: The invention relates to a reciprocating piston pump for delivering a liquid. The pump includes a solenoid with an actuator and an outlet port. A check valve with a seat body is assigned to the outlet port for keeping a return flow of the liquid out of the reciprocating piston pump. The seat body bears an impact damping face at a front face facing away from a valve seat of the check valve, and the valve seat of the check valve and the impact damping face are made from the same elastomer material.Type: ApplicationFiled: November 3, 2009Publication date: May 6, 2010Applicant: Thomas Magnete GmbHInventors: Olaf Ohligschlaeger, Axel Mueller, Michael Mueller, Andreas Monzen, Stefan Quast, Bernd Koehler, Michael Feckler
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Patent number: 6997159Abstract: Electrically controlled fuel injection systems should be able to operate at low voltage. In order to operate an electrically controlled fuel injection system at low voltage, the voltage available to an electrical actuator is monitored. The electrical actuator is coupled to a valve positioned within a passageway in which high pressure actuation fluid flows to and from an hydraulically actuated device, such as a fuel injector and/or an engine brake. If the voltage available to the electrical actuator falls below a predetermined voltage, the pressure differential across the valve is reduced. Although the principal application of the present invention is in the fuel injection system, the present invention has application in any electrically controlled fluid system at low voltage.Type: GrantFiled: February 21, 2003Date of Patent: February 14, 2006Assignee: Caterpillar Inc.Inventors: Alan R. Stockner, Rene Schulz, Olaf Ohligschlaeger, Ronald D. Shinogle, Bernhard Kirsch, Clifford E. Cotton, III
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Patent number: 6959732Abstract: At least one solenoid actuator and a valve are at least partially positioned within a body of an hydraulic device. The solenoid actuator includes at least one solenoid coil mounted to a stator that defines a guide bore in which a push pin moves between a first position and a second position. The valve includes a valve member that is operably coupled to move with the push pin. The push pin is attached to an armature that is positioned adjacent the solenoid coil. In order to increase the durability of the solenoid actuator, a relatively hard, nonmagnetic material is positioned between an inner surface of the stator that is made from a relatively soft, magnetic material and an outer surface of the push pin.Type: GrantFiled: February 21, 2003Date of Patent: November 1, 2005Assignee: Caterpillar Inc.Inventors: Clifford E. Cotton III, Alan R. Stockner, Ronald D. Shinogle, Olaf Ohligschläger
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Patent number: 6827050Abstract: A control system adapted to control an actuator between extended and retracted positions has a fluid control valve connected to the actuator a source of high pressure fluid and a reservoir. The fluid control valve is movable between a first position at which the actuator is connected back to the fluid reservoir adapted and a second position operable to connect the actuator to a high pressure actuation fluid source. An electronic control module is connected in control communication with the fluid control valve and adapted to automatically generate a control signal to position the control valve at the second position in response to an elapsed time being passed at which the fluid control valve is at the first position is greater than a predetermined time.Type: GrantFiled: September 16, 2002Date of Patent: December 7, 2004Assignee: Caterpillar IncInventors: Clifford E. Cotton, III, Bernhard Kirsch, David E. Martin, Olaf Ohligschlaeger, Rene Schulz, Ronald D. Shinogle, Alan R. Stockner, Ye Tian, Stephen M. Wiley
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Publication number: 20040163621Abstract: Electrically controlled fuel injection systems should be able to operate at low voltage. In order to operate an electrically controlled fuel injection system at low voltage, the voltage available to an electrical actuator is monitored. The electrical actuator is coupled to a valve positioned within a passageway in which high pressure actuation fluid flows to and from an hydraulically actuated device, such as a fuel injector and/or an engine brake. If the voltage available to the electrical actuator falls below a predetermined voltage, the pressure differential across the valve is reduced. Although the principal application of the present invention is in the fuel injection system, the present invention has application in any electrically controlled fluid system at low voltage.Type: ApplicationFiled: February 21, 2003Publication date: August 26, 2004Inventors: Alan R. Stockner, Rene Schulz, Olaf Ohligschlaeger, Ronald D. Shinogle, Bernhard Kirsch, Clifford E. Cotton
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Publication number: 20030116109Abstract: A control system adapted to control an actuator between extended and retracted positions has a fluid control valve connected to the actuator a source of high pressure fluid and a reservoir. The fluid control valve is movable between a first position at which the actuator is connected back to the fluid reservoir adapted and a second position operable to connect the actuator to a high pressure actuation fluid source. An electronic control module is connected in control communication with the fluid control valve and adapted to automatically generate a control signal to position the control valve at the second position in response to an elapsed time being passed at which the fluid control valve is at the first position is greater than a predetermined time.Type: ApplicationFiled: September 16, 2002Publication date: June 26, 2003Inventors: Clifford E. Cotton, Bernhard Kirsch, David E. Martin, Olaf Ohligschlaeger, Rene Schulz, Ronald D. Shinogle, Alan R. Stockner, Ye Tian, Stephen M. Wiley