Patents by Inventor Heinz Siegel
Heinz Siegel 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: 8202065Abstract: A high pressure fuel pump encompasses at least one delivery chamber and one high pressure outlet. in addition, a pressure limiting valve with a valve that is actuated by a pressure differential is provided that can open from the high pressure outlet to the delivery chamber. On a high pressure side of a valve seat of the pressure limiting valve, it is advantageous that a throttle device is provided, whose free cross section is at most approximately equal to a desired maximum opening cross section of the pressure limiting valve.Type: GrantFiled: April 16, 2007Date of Patent: June 19, 2012Assignee: Robert Bosch GmbHInventors: Heinz Siegel, Volkmar Goldschmitt, Martin Laich, Peter Ropertz, Siamend Flo, Klaus Lang, Joachim Zumbraegel, Rainer Wilms, Berthold Pfuhl, Victorio Toscano, Hans-Werner Schlingensief
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Patent number: 7959159Abstract: In order to provide a seal arrangement for sealing between a first medium space filled with a first medium and a second medium space filled with a second medium which ensures reliable sealing between the medium spaces with very low leakage values even over a prolonged period of use, wherein said seal arrangement comprises a moveable component which is displaceable in the longitudinal direction thereof and/or rotatable about the longitudinal direction thereof and extends through the seal arrangement and wherein the seal arrangement comprises a sealing element which comprises a first sealing region that is sealing in relation to the first medium space and a second sealing region that is sealing in relation to the second medium space, wherein the first sealing region comprises a first dynamic sealing section abutting against the moveable component and the second sealing region comprises a second dynamic sealing section abutting against the moveable component and at least one of the two dynamic sealing sections hType: GrantFiled: September 21, 2007Date of Patent: June 14, 2011Assignees: ElringKlinger AG, Robert Bosch GmbHInventors: Klaus Hocker, Walter Schuhmacher, Clemens Schefzik, Klaus Lang, Siamend Flo, Berthold Pfuhl, Heinz Siegel
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Publication number: 20100126474Abstract: The invention relates to a high pressure fuel pump for a fuel injection system of an internal combustion engine, having a pump housing in which is formed a working space, into which fuel can be supplied from a low pressure region of the radial piston pump, the working space being delimited by a pump piston which can be driven, in order to pressurize the fuel, by an external drive, in particular by a camshaft of an internal combustion engine, wherein in order to meter the fuel quantity supplied to the working space, a throttle device having a variable throttle action is arranged on or in the pump housing.Type: ApplicationFiled: May 29, 2006Publication date: May 27, 2010Inventors: Heinz Siegel, Hans-Peter Harnisch, Matthias Schumacher, Oliver Albrecht, Uwe Mueller, Bernd Schroeder, Timm Hollmann, Christian Wiedmann, Stefan Smetana
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Publication number: 20100077124Abstract: The present invention relates to a method for electronic control and/or feedback control. In this system, the sequence for execution of a statement within a control unit is simplified, the flexibility and adaptability of the control unit are enhanced and the potential achievement of an enhanced computing speed is increased, by means of the provision that in this method a plurality of input registers (17, 41) is assigned to a plurality of output registers (25, 49), a specific respective reference value is deposited in the input registers (17, 41) and a specific respective response is deposited in the output registers (25, 49), wherein a statement is applied to the input registers (17, 41) and, based on congruence of at least one sub-element of the statement with the reference value of an input register (17, 41), the response of the output register (25, 49) assigned to the input register (17, 41) is triggered.Type: ApplicationFiled: September 21, 2009Publication date: March 25, 2010Inventor: Heinz Siegel
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Publication number: 20090252621Abstract: A high pressure fuel pump encompasses at least one delivery chamber and one high pressure outlet. In addition, a pressure limiting valve with a valve that is actuated by a pressure differential is provided that can open from the high pressure outlet to the delivery chamber. On a high pressure side of a valve seat of the pressure limiting valve, it is advantageous that a throttle device is provided, whose free cross section is at most approximately equal to a desired maximum opening cross section of the pressure limiting valve.Type: ApplicationFiled: April 16, 2007Publication date: October 8, 2009Inventors: Heinz Siegel, Volkmar Goldschmitt, Martin Laich, Peter Ropertz, Siamend Flo, Klaus Lang, Joachim Zumbraegel, Rainer Wilms, Berthold Pfuhl, Victorio Toscano, Hans-Werner Schlingensief
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Publication number: 20080122184Abstract: In order to provide a seal arrangement for sealing between a first medium space filled with a first medium and a second medium space filled with a second medium which ensures reliable sealing between the medium spaces with very low leakage values even over a prolonged period of use, wherein said seal arrangement comprises a moveable component which is displaceable in the longitudinal direction thereof and/or rotatable about the longitudinal direction thereof and extends through the seal arrangement and wherein the seal arrangement comprises a sealing element which comprises a first sealing region that is sealing in relation to the first medium space and a second sealing region that is sealing in relation to the second medium space, wherein the first sealing region comprises a first dynamic sealing section abutting against the moveable component and the second sealing region comprises a second dynamic sealing section abutting against the moveable component and at least one of the two dynamic sealing sections hType: ApplicationFiled: September 21, 2007Publication date: May 29, 2008Inventors: Klaus Hocker, Walter Schuhmacher, Clemens Schefzik, Klaus Lang, Siamend Flo, Berthold Pfuhl, Heinz Siegel
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Patent number: 7346964Abstract: A press-on closure, in particular a press-on closure tape, preferably made of plastics, comprises at least one groove member having a groove and at least one engagement member having an engagement element. The groove member has funnel-shaped webs with inwardly pointing projections. To create a press-on closure or a press-on closure tape, which can be closed even more easily and reliably, a supporting post is each provided on each side of the engagement element.Type: GrantFiled: December 7, 2005Date of Patent: March 25, 2008Assignee: ASF Verwaitungs GmbHInventor: Karl Heinz Siegel
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Patent number: 7168929Abstract: A pump unit for a hydraulic vehicle brake system with traction control has an electric motor driving a radial piston pump. A rotor shaft of the pump unit has a hollow shaft with two standardized, hardened cylindrical pins that are press-fitted into the ends of the hollow shaft. The rotor shaft can be produced simply, economically, and without metal-cutting machining. The hollow shaft has high bending and torsional strength. The rotor shaft has a small diameter at the bearing points, which makes a small bearing diameter and thus a small installation space for the pump unit possible.Type: GrantFiled: July 25, 2001Date of Patent: January 30, 2007Assignee: Robert Bosch GmbHInventors: Heinz Siegel, Norbert Alaze, Dieter Merklein, Michael Schlitzkus, Andreas Weh, Alexander Bareiss
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Publication number: 20040045431Abstract: The invention relates to a roller bearing, in particular a needle bearing (38). The invention proposes embodying a bearing ring (42) of the needle bearing (38) with a lateral extension (46) with which the needle bearing (38) can be pressed into a bearing seat (48). This has the advantage that a compression of the bearing ring (42) by the bearing seat (48) takes place outside the region of the needles (40) of the needle bearing (38) and consequently, the compression of the bearing seat (48) does not influence a bearing play of the needle bearing (38). The needle bearing (38) is particularly provided for supporting a shaft (24) of a piston pump (16) of a pump unit (10), which shaft supports a cam (26).Type: ApplicationFiled: August 29, 2003Publication date: March 11, 2004Inventors: Edgar Schmitt, Heinz Siegel, Ernst-Dieter Schaefer, Erwin Sinnl
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Publication number: 20040020358Abstract: The invention relates to a pump unit (10) for a hydraulic vehicle brake system with traction control. The pump unit (10) has an electric motor (12) and a radial piston pump (14), which can be driven by the electric motor (12). The invention proposes embodying a rotor shaft (18) of the pump unit (10) with a hollow shaft (20) and with two standardized, hardened cylindrical pins (22, 24) that are press-fitted into the ends of the hollow shaft (20). The invention has the advantage that the rotor shaft (18) can be produced simply, economically, and without metal-cutting machining. Because of its embodiment as a hollow shaft (20), the rotor shaft (18) has high bending and torsional strength. Because of the press-fitted pins (22, 24), the rotor shaft (18) has a small diameter at the bearing points, which makes a small bearing diameter and thus a small installation space for the pump unit (10) possible.Type: ApplicationFiled: August 4, 2003Publication date: February 5, 2004Inventors: Heinz Siegel, Norbert Alaze, Dieter Merklein, Michael Schlitzkus, Harol Bitzer, Joerg Eigenmann, Andreas Weh, Alexander Bareiss
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Publication number: 20040012256Abstract: A storage chamber for a hydraulic vehicle brake system is embodied as a gas separator, with two fluid connections disposed at different heights. Wheel brake cylinders of an auxiliary force brake system are connected to the fluid connection located at a low level and can be actuated by muscle force if there is a malfunction of an external-energy service brake system. The gas separator keeps gas bubbles away from the fluid connection located at the low level and thereby prevents gas bubbles from getting into the brake fluid of the muscle force auxiliary brake system, in order to assure the function of that system.Type: ApplicationFiled: July 14, 2003Publication date: January 22, 2004Inventor: Heinz Siegel
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Patent number: 6598512Abstract: The invention relates to a piston pump, for instance for an electrohydraulic vehicle brake system. The invention proposes that a pump piston, on an end toward an eccentric element, be sealed off with a sealing ring, such as a quad ring, that has two axially spaced-apart sealing lips, which sealing ring has radial openings, and also proposes that interstices between the axially spaced-apart sealing lips be connected, through a fluid line, to a fluid supply container from which the piston pump aspirates fluid, or to a pump inlet, whereby in the event of a leak of a sealing lip, the piston pump will aspirate brake fluid through the fluid line and prevent the piston pump from aspirating air from the direction of an eccentric element.Type: GrantFiled: August 29, 2001Date of Patent: July 29, 2003Assignee: Robert Bosch GmbHInventor: Heinz Siegel
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Patent number: 6499970Abstract: A combination electric motor-pump unit which is installed on a body of a vehicle. The pump unit includes motor fastening screws with which the electric motor is fastened to the pump housing and which connect the pump unit to the vehicle body. This significantly reduces the number of required parts. The pump unit is provided for a brake system of a vehicle.Type: GrantFiled: April 9, 1998Date of Patent: December 31, 2002Assignee: Robert Bosch GmbHInventors: Heinz Siegel, Arnold Pahl, Rolf Hummel, Barbara Schwind-Grellmann, Martin Mohle, Erika Mank
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Patent number: 6490769Abstract: A slider for a closing band includes a core piece (8), two parallel inner surfaces (31, 32), and two support flanks (14, 15). In order improved sliders of this kind, an additional core piece (7) is provided (FIG. 2) in the region of the inner surfaces (31, 32).Type: GrantFiled: May 11, 2001Date of Patent: December 10, 2002Assignee: ASF Verwaltungs GmbHInventor: Karl-Heinz Siegel
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Patent number: 6394770Abstract: The invention relates to a piston pump for a vehicle brake system, in particular an electrohydraulic vehicle brake system. To improve the aspiration performance of the piston pump when the brake fluid is viscous at low the invention proposes a valve opening device, which compulsorily opens the inlet valve, embodied as a spring-loaded check valve, of the piston pump at the onset of a return stroke of the piston. The valve opening device has an opener pin, which is mounted on a valve ball of the inlet valve, and which at the end of a supply stroke of the piston enters a perforated, disklike valve opener part. At the onset of the return stroke, the valve opener part restrains the valve ball by frictional force at its opener pin and thereby opens the inlet valve.Type: GrantFiled: March 26, 2001Date of Patent: May 28, 2002Assignee: Robert Bosch GmbHInventors: Heinz Siegel, Werner-Karl Marquardt
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Publication number: 20020028149Abstract: The invention relates to a piston pump, for instance for an electrohydraulic vehicle brake system. The invention proposes that a pump piston, on an end toward an eccentric element, be sealed off with a sealing ring, such as a quad ring, that has two axially spaced-apart sealing lips, which sealing ring has radial openings, and also proposes that interstices between the axially spaced-apart sealing lips be connected, through a fluid line, to a fluid supply container from which the piston pump aspirates fluid, or to a pump inlet, whereby in the event of a leak of a sealing lip, the piston pump will aspirate brake fluid through the fluid line and prevent the piston pump from aspirating air from the direction of an eccentric element.Type: ApplicationFiled: August 29, 2001Publication date: March 7, 2002Applicant: Robert Bosch GmbHInventor: Heinz Siegel
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Publication number: 20010048884Abstract: A piston pump for a hydraulic slip-controlled brake system for a vehicle. To seal off and guide a piston of the piston pump in a bush, the piston pump includes a seal of rigid plastic which has a spreader face in the form of an internal cone. A piston restoring spring presses directly or indirectly against the spreader face via a spreader ring with a conical counterpart face and thereby presses the seal into sealing contact with the bush. The piston pump has the advantage that no separate sealing ring or guide ring is needed for the piston, and that friction and wear are both only slight.Type: ApplicationFiled: December 14, 1999Publication date: December 6, 2001Inventors: HEINZ SIEGEL, NORBERT ALAZE
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Patent number: 6322163Abstract: An inexpensive hydraulic brake system for a vehicle including an antilock device, by means of which brake pressures in front wheel brakes and rear wheel brakes of a four-wheeled vehicle that are connected to diagonal brake circuits can be changed to a large extent independently of one another in order to reduce or eliminate the danger of wheel locking. The antilock device should have one return feed pump per brake circuit. The brake system is equipped with the antilock device with a total of six electrically controllable valves. In each of the brake circuits a first valve is disposed between the master cylinder and a front wheel brake and a second valve is disposed between the master cylinder and the rear wheel brake and a third valve is disposed between the front wheel brake and an inlet of each of the return feed pumps.Type: GrantFiled: November 25, 1998Date of Patent: November 27, 2001Assignee: Robert Bosch GmbHInventor: Heinz Siegel
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Publication number: 20010039698Abstract: A slider for a closing band includes a core piece (8), two parallel inner surfaces (31, 32), and two support flanks (14, 15). In order improved sliders of this kind, an additional core piece (7) is provided (FIG. 2) in the region of the inner surfaces (31, 32).Type: ApplicationFiled: May 11, 2001Publication date: November 15, 2001Inventor: Karl-Heinz Siegel
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Patent number: 6276909Abstract: A piston pump for a hydraulic brake system for a vehicle with a slip control system. For economical production, the piston pump includes a piston as a composites part with a core of steel that is surrounded by a lubricant jacket of plastic. By way of example, the lubricant jacket is applied to the core by spray-coating, or is pressed onto the core or slipped onto the core. The lubricant jacket economizes by dispensing with expensive post-machining of the piston surface by grinding, for instance, and improves the sliding properties of the piston.Type: GrantFiled: June 1, 1999Date of Patent: August 21, 2001Assignee: Robert Bosch GmbHInventors: Heinz Siegel, Dieter Merklein, Joachim Ehrlich, Andreas Weh, Michael Hellebrandt, Tobias Fluck, Michael Schlitzkus