Patents by Inventor Guido Pilgram
Guido Pilgram 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).
-
Patent number: 10378653Abstract: A valve for metering highly pressurized fluid, having an inlet connector that can be placed into a connection socket of a fluid supply line, and a sealing assembly situated on the inlet connector, the sealing assembly having an elastically deformable sealing ring and a support ring made of plastic, which sealing assembly is supported on a radial support shoulder present on the inlet connector and seals against the connection socket. To prevent radial gaps between the support ring on the one hand and the inlet connector and/or the connection socket on the other hand, into which gaps the sealing ring extrudes under high pressure and becomes damaged, the support ring situated between the sealing ring and the support shoulder is made of an elastically deformable plastic material.Type: GrantFiled: September 5, 2014Date of Patent: August 13, 2019Assignee: Robert Bosch GmbHInventors: Thilo Beckmann, Stefanie Capek, Guido Pilgram, Ralf Kromer
-
Publication number: 20190226437Abstract: A connection piece for a valve, which is utilized for metering a fluid, includes a sealing section, on which at least one annular sealing element is situated. The annular sealing element circumferentially surrounds the sealing section with respect to a longitudinal axis. Furthermore, the annular sealing element is supported on an end of the sealing section with the aid of a support ring. The sealing section has a circumference increasing along the longitudinal axis at least in an area along the longitudinal axis in which the annular sealing element surrounds the sealing section.Type: ApplicationFiled: June 21, 2017Publication date: July 25, 2019Inventors: Guido Pilgram, Ralf Kromer, Stefanie Capek, Thilo Beckmann
-
Publication number: 20190219015Abstract: A connection piece for a valve, which is for metering a fluid, includes a sealing section, on which at least one annular sealing element is situated. The annular sealing element circumferentially surrounds the sealing section with respect to a longitudinal axis. In the connection piece, at least one support ring is situated on the sealing section, the support ring at least partially circumferentially surrounds the sealing section with respect to the longitudinal axis, the sealing section is configured, at least in one area along the longitudinal axis, in which the support ring surrounds the sealing section at least during operation, to have a circumference increasing in a direction along the longitudinal axis, and the support ring and the sealing section are configured so that, during operation, the support ring is displaceable in the direction in relation to the sealing section due to a fluid pressure of the fluid.Type: ApplicationFiled: June 21, 2017Publication date: July 18, 2019Inventors: Guido Pilgram, Ralf Kromer, Stefanie Capek, Thilo Beckmann, Jens Pohlmann
-
Patent number: 9840996Abstract: A method for installing a sealing ring in a ring groove of an injector, in particular a fuel injector, in which the diameter of the sealing ring is enlarged with the aid of an enlarging tool and is inserted into the ring groove, and the enlarged sealing ring accommodated in the ring groove is reshaped to a predefined sealing dimension with the aid of a calibration tool. For the purpose of shifting a residual ring gap remaining in the ring groove during the reshaping process to the groove flank of the ring groove facing away from the combustion chamber, the reshaping process of the sealing ring is carried out by removing the calibration tool from the fuel injector.Type: GrantFiled: September 6, 2010Date of Patent: December 12, 2017Assignee: ROBERT BOSCH GMBHInventors: Thilo Beckmann, Ulrich Fischer, Johann Bayer, Guido Pilgram
-
Patent number: 9771908Abstract: A valve for injecting fuel, including a valve positioning element, an armature connected to the valve positioning element, a stop that limits a movement of the armature, and a damping element provided between the armature and the stop, the damping element being applied as a damping layer on at least one part of the armature and/or on at least one part of the stop.Type: GrantFiled: November 7, 2011Date of Patent: September 26, 2017Assignee: Robert Bosch GmbHInventor: Guido Pilgram
-
Patent number: 9599084Abstract: A fuel injector configured as a high-pressure injection valve for the direct injection of fuel into a combustion chamber includes: a housing having an housing end face on the combustion chamber side; an actuator; a valve-closure member operable by the actuator; at least one outlet orifice in the housing end face on the combustion chamber side for the fuel, the valve-closure member selectively closing or opening the outlet orifice; and a ring provided round about the outlet orifice in the housing end face on the combustion chamber side.Type: GrantFiled: May 24, 2013Date of Patent: March 21, 2017Assignee: ROBERT BOSCH GMBHInventors: Martin Kochanowski, Detlef Nowak, Guido Pilgram, Rainer Ecker
-
Patent number: 9506437Abstract: A fuel injection valve includes: a magnetic coil; an armature; and a valve needle connected to the armature for actuating a valve closing body which forms, together with a valve seat surface, a seal seat. Formed downstream from the valve seat surface is a spray opening that has, at the transition from a first to a second spray opening segment, a tear-off edge such that the complete opening angle of the spray opening at the tear-off edge is greater than 270° over the entire circumferential tear-off edge, so that, going out from the tear-off edge, on the floor of the second spray opening segment of the spray opening, there extends a circumferential floor region that is recessed behind the transition plane in which the tear-off edge is situated.Type: GrantFiled: October 1, 2013Date of Patent: November 29, 2016Assignee: Robert Bosch GmbHInventor: Guido Pilgram
-
Publication number: 20160281857Abstract: A valve for metering highly pressurized fluid, having an inlet connector that can be placed into a connection socket of a fluid supply line, and a sealing assembly situated on the inlet connector, the sealing assembly having an elastically deformable sealing ring and a support ring made of plastic, which sealing assembly is supported on a radial support shoulder present on the inlet connector and seals against the connection socket. To prevent radial gaps between the support ring on the one hand and the inlet connector and/or the connection socket on the other hand, into which gaps the sealing ring extrudes under high pressure and becomes damaged, the support ring situated between the sealing ring and the support shoulder is made of an elastically deformable plastic material.Type: ApplicationFiled: September 5, 2014Publication date: September 29, 2016Inventors: Thilo Beckmann, Stefanie Capek, Guido Pilgram, Ralf Kromer
-
Publication number: 20150300304Abstract: A fuel injection valve includes: a magnetic coil; an armature; and a valve needle connected to the armature for actuating a valve closing body which forms, together with a valve seat surface, a seal seat. Formed downstream from the valve seat surface is a spray opening that has, at the transition from a first to a second spray opening segment, a tear-off edge such that the complete opening angle of the spray opening at the tear-off edge is greater than 270° over the entire circumferential tear-off edge, so that, going out from the tear-off edge, on the floor of the second spray opening segment of the spray opening, there extends a circumferential floor region that is recessed behind the transition plane in which the tear-off edge is situated.Type: ApplicationFiled: October 1, 2013Publication date: October 22, 2015Inventor: Guido Pilgram
-
Publication number: 20150115068Abstract: A fuel injector configured as a high-pressure injection valve for the direct injection of fuel into a combustion chamber includes: a housing having an housing end face on the combustion chamber side; an actuator; a valve-closure member operable by the actuator; at least one outlet orifice in the housing end face on the combustion chamber side for the fuel, the valve-closure member selectively closing or opening the outlet orifice; and a ring provided round about the outlet orifice in the housing end face on the combustion chamber side.Type: ApplicationFiled: May 24, 2013Publication date: April 30, 2015Inventors: Martin Kochanowski, Detlef Nowak, Guido Pilgram, Rainer Ecker
-
Patent number: 8656591Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: GrantFiled: August 25, 2011Date of Patent: February 25, 2014Assignee: Robert Bosch GmbHInventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Guido Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
-
Publication number: 20130327970Abstract: A valve for injecting fuel, including a valve positioning element, an armature connected to the valve positioning element, a stop that limits a movement of the armature, and a damping element provided between the armature and the stop, the damping element being applied as a damping layer on at least one part of the armature and/or on at least one part of the stop.Type: ApplicationFiled: November 7, 2011Publication date: December 12, 2013Inventor: Guido Pilgram
-
Publication number: 20120216781Abstract: A method for installing a sealing ring in a ring groove of an injector, in particular a fuel injector, in which the diameter of the sealing ring is enlarged with the aid of an enlarging tool and is inserted into the ring groove, and the enlarged sealing ring accommodated in the ring groove is reshaped to a predefined sealing dimension with the aid of a calibration tool. For the purpose of shifting a residual ring gap remaining in the ring groove during the reshaping process to the groove flank of the ring groove facing away from the combustion chamber, the reshaping process of the sealing ring is carried out by removing the calibration tool from the fuel injector.Type: ApplicationFiled: September 6, 2010Publication date: August 30, 2012Inventors: Thilo Beckmann, Ulrich Fischer, Johann Bayer, Guido Pilgram
-
Publication number: 20110305823Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: ApplicationFiled: August 25, 2011Publication date: December 15, 2011Inventors: Manfred ROESSLER, Achim DEGEL, Rolf KELLER, Markus GESK, Guido PILGRAM, Bernd EINWILLER, Norbert KEIM, Michael LINGNER
-
Patent number: 8020789Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: GrantFiled: July 2, 2003Date of Patent: September 20, 2011Assignee: Robert Bosch GmbHInventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Guido Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
-
Publication number: 20080217439Abstract: A fuel injector for fuel-injection systems of internal combustion engines has a solenoid coil; a valve needle that is operatively connected to the solenoid coil and acted upon by a restoring spring in a closing direction, in order to actuate a valve-closure member which, together with a valve-seat surface formed at a valve-seat member, forms a sealing seat; and at least two spray-discharge orifices which are formed in the valve-seat member. The spray-discharge orifices are formed in the valve-seat member in such a way that they are shielded from mixture flows circulating in a combustion chamber of the internal combustion engine.Type: ApplicationFiled: December 10, 2007Publication date: September 11, 2008Inventors: Guido Pilgram, Joerg Heyse
-
Patent number: 7306173Abstract: A fuel injector for fuel-injection systems of internal combustion engines has a solenoid coil; a valve needle that is operatively connected to the solenoid coil and acted upon by a restoring spring in a closing direction, in order to actuate a valve-closure member which, together with a valve-seat surface formed at a valve-seat member, forms a sealing seat; and at least two spray-discharge orifices which are formed in the valve-seat member. The spray-discharge orifices are formed in the valve-seat member in such a way that they are shielded from mixture flows circulating in a combustion chamber of the internal combustion engine.Type: GrantFiled: March 16, 2002Date of Patent: December 11, 2007Assignee: Robert Bosch GmbHInventors: Guido Pilgram, Joerg Heyse
-
Publication number: 20070095952Abstract: A fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine includes an energizable actuator, a valve needle, which is in operative connection with the actuator and acted upon by a restoring spring in a closing direction to actuate a valve-closure member, which, together with a valve-seat surface formed on a valve-seat body, forms a sealing seat; and includes at least two spray-discharge orifices which are formed in the valve-seat body. At an outer side, facing the combustion chamber of the internal combustion engine, of the valve-seat body, a coating is formed and/or the maximum number of spray-discharge orifices is eight and/or a clearance between the valve-closure member and the valve-seat body is smaller than 20 ?m and/or the spray-discharge orifices widen in a spray-discharge direction of the fuel.Type: ApplicationFiled: March 16, 2004Publication date: May 3, 2007Inventors: Axel Heinstein, Axel Storch, Guido Pilgram, Detlef Nowak, Joerg Heyse, Robert Koehler
-
Patent number: 7017555Abstract: In a method for operating an internal combustion engine of a motor vehicle, in particular, pressurized fuel is conveyed to a fuel accumulator. The fuel is injected into a combustion chamber via a fuel injector. Coking of the fuel injector is determined. A first fuel-pressure increase is implemented when the coking exceeds a threshold value.Type: GrantFiled: April 7, 2004Date of Patent: March 28, 2006Assignee: Robert Bosch GmbHInventors: Axel Heinstein, Axel Storch, Guido Pilgram, Klaus Ries-Mueller, Detlef Nowak, Stefan Lauter, Robert Koehler, Jens Botte
-
Patent number: 6971364Abstract: A fuel injection system for GDI internal combustion engines, which has a second injection valve in the intake tube, and a method for operating this fuel injection system. By injecting fuel into the intake tube at intervals by means of the second injection valve, the formation of deposits in the intake tube and on the inlet valve, which are produced due to the recirculation of exhaust gas through the exhaust recirculation tube, can be prevented and possibly existing deposits can be broken down.Type: GrantFiled: August 28, 2002Date of Patent: December 6, 2005Assignee: Robert Bosch GmbHInventors: Guido Pilgram, Martin Maier