Patents by Inventor Franz Rieger
Franz Rieger 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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Publication number: 20220104573Abstract: The present invention is directed to a visor for a ballistic protective helmet having: a visor pane; a splinter protective lip arranged in an edge region of the visor pane, wherein the splinter protective lip encloses at least partly an edge of the visor pane.Type: ApplicationFiled: October 6, 2021Publication date: April 7, 2022Inventors: Martin Meindlhumer, Georg Scharpenack, Franz Rieger
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Publication number: 20210330019Abstract: The present invention relates to a forehead shield for a ballistic protective helmet, which is adapted to move with a visor of the protective helmet when the visor is opened and closed.Type: ApplicationFiled: April 20, 2021Publication date: October 28, 2021Inventors: Georg Scharpenack, Franz Rieger, Michal Orlowski
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Publication number: 20080141429Abstract: The invention relates to a helmet, in particular a protective helmet for emergency services or intervention forces. Said helmet comprises a dome (1), which is provided with internal padding and lateral convex sections (1a) in the ear regions for accommodating ear defender capsules (5). The dome (1) and the lateral convex sections (1a) in the ear regions consist preferably of a single deep-drawn titanium sheet.Type: ApplicationFiled: July 19, 2007Publication date: June 19, 2008Inventors: Georg Scharpenack, Walter Obermair, Franz Rieger
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Patent number: 7021568Abstract: A fuel injector (1), in particular a fuel injector (1) for fuel injection systems, includes a first solenoid (2) cooperating with an armature (3), a second solenoid (4) cooperating with the armature (3), and a valve needle (13) friction-locked to the armature (3) for actuating a valve closing body, a force being exertable on the armature (3) in a closing direction using the first solenoid (2) and in an opening direction using the second solenoid (4).Type: GrantFiled: February 2, 2001Date of Patent: April 4, 2006Assignee: Robert Bosch GmbHInventors: Franz Rieger, Harald Maisch, Michael Huebel, Ulrich Becker, Juergen Stein
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Patent number: 6892971Abstract: A fuel injector, in particular a fuel injector for fuel-injection systems of internal combustion engines, includes a first magnetic coil cooperating with a first armature, a second magnetic coil cooperating with a second armature, and a valve needle which is in force-locking connection with the first armature via a first flange and to the second armature via a second flange, to actuate a valve-closure member. A restoring spring acts upon the valve needle in a closing direction of the fuel injector. A first positioning spring, situated between the first flange and the first armature, acts upon the first armature in the closing direction of the fuel injector, while a second positioning spring, situated between the second flange and the second armature, acts upon the second armature in an opening direction of the fuel injector.Type: GrantFiled: May 16, 2002Date of Patent: May 17, 2005Assignee: Robert Bosch GmbHInventors: Franz Rieger, Fevzi Yildirim, Andreas Eichendorf, Günther Hohl, Michael Hübel, Jürgen Stein
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Patent number: 6814309Abstract: A fuel injector is described, in particular an injector for fuel injection systems in internal combustion engines, that includes a valve needle having a valve-closure member which cooperates with a valve-seat surface arranged in valve-seat member to form a sealing seat and which has several injection orifices which are arranged downstream from the sealing seat, and are sealed by sealing seat against a fuel supply. A disk element is arranged downstream from the sealing seat, the disk element having at least one valve section, which changes its shape when the temperature changes. Valve section is connected to a heating element and optionally covers an injection orifice.Type: GrantFiled: November 12, 2002Date of Patent: November 9, 2004Assignee: Robert Bosch GmbHInventors: Franz Rieger, Thomas Ludwig, Hans Schlembach, Gottlob Haag, Ulrich Brenner, Michael Huebel, Juergen Stein, Udo Sieber
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Patent number: 6766968Abstract: A fuel injector for fuel injection systems in internal combustion engines, including an actuator, a valve needle operable by the actuator for operating a valve-closure member, which, together with a valve-seat surface forms a sealing seat and a swirl device including at least one swirl channel, through which fuel flows with a tangential component relative to a longitudinal axis of the fuel injector. The axial position of a plunger element determines a cross-section of at least one bypass channel that bypasses the at least one swirl channel without a tangential component.Type: GrantFiled: November 21, 2002Date of Patent: July 27, 2004Assignee: Robert Bosch GmbHInventors: Franz Rieger, Thomas Ludwig, Hans Schlembach, Gottlob Haag, Ulrich Brenner, Michael Huebel, Juergen Stein, Udo Sieber
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Patent number: 6748918Abstract: A fuel injector having an integrated spark plug for injecting fuel directly into a combustion chamber of an internal combustion engine and for igniting the fuel that is injected into the combustion chamber has a valve body, which, together with a valve-closure member, forms a sealing seat. Disposed contiguously to the sealing seat is a discharge orifice, which discharges at a valve-body end face facing the combustion chamber. Provision is also made for a housing body that is insulated from the valve body, and for an ignition electrode that is connected to the housing body. In this context, a spark arc-over is produced between the valve body and the ignition electrode. The ignition electrode and the valve body are formed so that the spark arc-over occurs between the end face of the valve body facing the combustion chamber and the ignition electrode.Type: GrantFiled: January 29, 2003Date of Patent: June 15, 2004Assignee: Robert Bosch GmbHInventors: Franz Rieger, Gernot Wuerfel, Stefan Kampmann
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Publication number: 20040074998Abstract: A fuel injector (1), in particular for fuel injection systems in internal combustion engines, including an actuator (27), a valve needle (3) operable by the actuator (27) for operating a valve-closure member (4), which, together with a valve-seat surface (6) forms a sealing seat and a swirl device (34) having at least one swirl channel (35), through which fuel flows with a tangential component relative to a longitudinal axis (38) of the fuel injector (1). The axial position of a plunger element (36) determines a cross-section of at least one bypass channel (37) that bypasses the at least one swirl channel (35) without a tangential component.Type: ApplicationFiled: November 21, 2002Publication date: April 22, 2004Inventors: Franz Rieger, Thomas Ludwig, Hans Schlembach, Gottlob Haag, Ulrich Brenner, Michael Huebel, Juergen Stein, Udo Sieber
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Publication number: 20040050977Abstract: A fuel injector (1), in particular a fuel injector (1) for fuel-injection systems of internal combustion engines, comprises a first magnetic coil (2) cooperating with a first armature (3), a second magnetic coil (4) cooperating with a second armature (5), and a valve needle (14) which is in force-locking connection with the first armature (3) via a first flange (12) and to the second armature (5) via a second flange (13), to actuate a valve-closure member. A restoring spring (17) acts upon the valve needle (14) in a closing direction of the fuel injector (1). A first positioning spring (15), situated between the first flange (12) and the first armature (3), acts upon the first armature (3) in the closing direction of the fuel injector (1), while a second positioning spring (16), situated between the second flange (13) and the second armature (5), acts upon the second armature (5) in an opening direction of the fuel injector (1).Type: ApplicationFiled: September 4, 2003Publication date: March 18, 2004Inventors: Franz Rieger, Fevzi Yildirim, Andreas Eichendorf, Gunther Hohl, Michael Hubel, Jurgen Stein
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Publication number: 20030127543Abstract: A fuel injector, in particular an injector for fuel injection systems in internal combustion engines, includes a valve needle (6) having a valve-closure member (7) which cooperates with a valve-seat surface (8) situated in valve-seat member (5) to form a sealing seat (9) and which has several injection orifices (4, 12) which are situated downstream from the sealing seat (9), and are sealed by sealing seat (9) against a fuel supply. A disk element (10) is arranged downstream from the sealing seat (9), the disk element (10) having at least one valve section (11), which changes its shape when the temperature changes. Valve section (11) is connected to a heating element (13) and is possibly covering an injection orifice (12).Type: ApplicationFiled: November 12, 2002Publication date: July 10, 2003Inventors: Franz Rieger, Thomas Ludwig, Hans Schlembach, Gottlob Haag, Ulrich Brenner, Michael Huebel, Juergen Stein, Udo Sieber
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Publication number: 20030111557Abstract: A fuel injection valve, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, includes an actuator that is in working engagement with a valve needle, the valve needle including at its spray-discharge end a valve closure element that coacts with a valve seating surface configured on a valve seat element to form a sealing seat. Also provided is a swirl disk in which swirl channels are configured. The swirl disk includes extensions that coact with a cam disk in such a manner that a tangential component of the swirl generated by the swirl disk is modifiable.Type: ApplicationFiled: October 28, 2002Publication date: June 19, 2003Inventors: Franz Rieger, Thomas Ludwig, Hans Schlembach, Gottlob Haag, Ulrich Brenner, Michael Huebel, Juergen Stein, Udo Sieber
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Publication number: 20030111042Abstract: A fuel injector having an integrated spark plug (1) for injecting fuel directly into a combustion chamber (72) of an internal combustion engine and for igniting the fuel that is injected into the combustion chamber (72) has a valve body (7), which, together with a valve-closure member (10), forms a sealing seat. Disposed contiguously to the sealing seat is a discharge orifice (12), which discharges at a valve-body (7) end face (73) facing the combustion chamber (72). Provision is also made for a housing body (2) that is insulated from the valve body (7), and for an ignition electrode (70a) that is connected to the housing body (2). In this context, a spark arc-over is produced between the valve body (7) and the ignition electrode (70a). The ignition electrode (70a) and the valve body (7) are formed in such a way that the spark arc-over takes place between the end face (73) of the valve body (7) facing the combustion chamber (72) and the ignition electrode (70a).Type: ApplicationFiled: January 29, 2003Publication date: June 19, 2003Inventors: Franz Rieger, Gernot Wuerfel, Stefan Kampmann
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Publication number: 20030080202Abstract: In a fuel-injection system, a fuel injector (1) has a valve-closure member (4), which cooperates with a valve seat surface (6) on a valve seat element (5) to form a sealing seat. At least one spray-discharge opening (7. 49) is situated downstream of the sealing seat and it is sealed from a fuel inlet (16) by the sealing seat. The spray-discharge opening (7, 49) has a spray-shaping section (34) which is made of a thin-walled wall section of the spray-discharge opening (7, 49) lying opposite to a pressure chamber (44), and the pressure chamber (44) may have pressure applied to it by a pressure fluid.Type: ApplicationFiled: October 11, 2002Publication date: May 1, 2003Inventors: Franz Rieger, Thomas Ludwig, Hans Schlembach, Gottlob Haag, Ulrich Brenner, Michael Huebel, Juergen Stein, Udo Sieber
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Patent number: 6536405Abstract: A fuel injector having an integrated spark plug (1) for injecting fuel directly into a combustion chamber (72) of an internal combustion engine and for igniting the fuel that is injected into the combustion chamber (72) has a valve body (7), which, together with a valve-closure member (10), forms a sealing seat. Disposed contiguously to the sealing seat is a discharge orifice (12), which discharges at a valve-body (7) end face (73) facing the combustion chamber (72). Provision is also made for a housing body (2) that is insulated from the valve body (7), and for an ignition electrode (70a) that is connected to the housing body (2). In this context, a spark arc-over is produced between the valve body (7) and the ignition electrode (70a). The ignition electrode (70a) and the valve body (7) are formed in such a way that the spark arc-over takes place between the end face (73) of the valve body (7) facing the combustion chamber (72) and the ignition electrode (70a).Type: GrantFiled: May 19, 2000Date of Patent: March 25, 2003Assignee: Robert Bosch GmbHInventors: Franz Rieger, Gernot Wuerfel, Stefan Kampmann
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Publication number: 20020170986Abstract: A fuel injector (1), in particular a fuel injector (1) for fuel injection systems, includes a first solenoid (2) cooperating with an armature (3), a second solenoid (4) cooperating with the armature (3), and a valve needle (13) friction-locked to the armature (3) for actuating a valve closing body, a force being exertable on the armature (3) in a closing direction using the first solenoid (2) and in an opening direction using the second solenoid (4).Type: ApplicationFiled: May 9, 2002Publication date: November 21, 2002Inventors: Franz Rieger, Harald Maisch, Michael Huebel, Ulrich Becker, Juergen Stein
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Patent number: 6340015Abstract: A fuel injection valve (1) having an integrated sparkplug for direct injection of fuel into the combustion chamber of an internal combustion engine and for igniting the fuel injected into the combustion chamber has a valve body (7) which, together with a valve closing body (10) operated by a valve needle (9), forms a seal seat. The valve body (7) and to some extent the valve needle (9) are surrounded radially by an insulating body (6). The insulating body (6) is in turn surrounded radially at least in part by a housing body (2). Ignition electrodes (15, 16) are provided on the valve body (7) and the housing body (2). The valve needle (9) has a first metal guide section (9a) guided in a swirl insert (14), a second metal guide section (9b) guided in the insulating body (6) and an insulating section (9c) arranged between the guide sections (9a, 9b). The guide sections (9a, 9b) are connected in a positive manner to the insulating section (9c).Type: GrantFiled: May 25, 2000Date of Patent: January 22, 2002Assignee: Robert Bosch GmbHInventors: Walter Benedikt, Franz Rieger, Rainer Norgauer
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Patent number: 5983855Abstract: A fuel injection valve includes a valve needle passing through the valve opening to the valve closing body arranged on the spray outlet end. A closing spring prestresses the valve needle in a direction opposite its opening direction aimed in the direction of spraying, so that the valve closing body is in contact with the valve seat on the spray outlet end when the fuel injection valve is closed. The armature is kept engaged and in contact with the valve needle by means of a bearing spring which acts in the direction of opening by means of a connecting piece arranged between the armature and the valve needle. The connecting piece includes a suitable insulation element for providing insulation against high voltage.Type: GrantFiled: May 7, 1998Date of Patent: November 16, 1999Assignee: Robert Bosch GmbHInventors: Walter Benedikt, Franz Rieger, Rainer Norgauer, Christian Preussner
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Patent number: 5534296Abstract: A bath for pre-treatment of light metals that form oxide layers, before electroless (chemical) metal deposition is an aqueous bath containing phosphorous acid. The bath is used in the following process for electroless deposition of nickel: (1) Degreasing by boiling (2) Rinsing (3) Pickling (4) Rinsing (5) Treatment in aqueous bath containing phosphoric acid (6) Rinsing with water (7) Chemically nickel plating (8) Rinsing. The light metal articles are packed in a drum that is immersed and rotated in the pre-treatment bath. Current and voltage are applied to a light metal bar that is attached to a non-rotating place on the drum.Type: GrantFiled: May 23, 1994Date of Patent: July 9, 1996Inventor: Franz Rieger
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Patent number: 5380451Abstract: A bath for pre-treatment of light metals that form oxide layers, before electroless (chemical) metal deposition is an aqueous bath containing phosphorous acid. The bath is used in the following process for electroless deposition of nickel: (1) Degreasing by boiling (2) Rinsing (3) Pickling (4) Rinsing (5) Treatment in aqueous bath containing phosphoric acid (6) Rinsing with water (7) Chemically nickel plating (8) Rinsing. The light metal articles are packed in a drum that is immersed and rotated in the pre-treatment bath. Current and voltage are applied to a light metal bar that is attached to a non-rotating place on the drum.Type: GrantFiled: March 2, 1993Date of Patent: January 10, 1995Inventor: Franz Rieger