Patents by Inventor Wolfgang Dressler
Wolfgang Dressler 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: 6727472Abstract: A sheathed-element glow plug to be mounted in a combustion chamber is proposed, a rod-shaped heating element being situated in a concentric bore hole of the housing. The heating element has a first current-carrying layer, a second current-carrying layer, and an insulating layer, the insulating layer separating the first current-carrying layer and the second current-carrying layer. The first current-carrying layer and the second current-carrying layer being connected at the end of the heating element on the combustion chamber side by a conducting-layer crosspiece. The first current-carrying layer and the second current-carrying layer are different lengths, the cross section of the first current-carrying layer in a first section at the end of the heating element away from the combustion chamber being greater than the cross section of its remaining length, and the second current-carrying layer not extending into the first section.Type: GrantFiled: July 10, 2002Date of Patent: April 27, 2004Assignee: Robert Bosch GmbHInventors: Pia Mondal, Christine Engel, Andreas Reissner, Wolfgang Dressler, Horst Boeder, Christoph Kern, Steffen Schott, Ruth Hoffmann
-
Publication number: 20040021548Abstract: A passive, high-temperature-resistant resistor element for measuring temperature is provided, the resistor element having an essentially interior insulating layer and two exterior conducting layers of a ceramic composite structure; the conducting layers being connected to one another at the tip of the resistor element; and the ceramic composite structure including trisilicon tetranitride, a metal silicide, and yttrium oxide or trisilicon tetranitride, a metal silicide, and a matrix phase of SixOyCzNw, where x signifies 1-2, y signifies 0-2, and w signifies 0-2. A combination element of this resistor element and a sheathed type glow plug, for example, is also provided.Type: ApplicationFiled: April 11, 2003Publication date: February 5, 2004Inventors: Albrecht Geissinger, Gert Lindemann, Jens Stefan Schneider, Wolfgang Dressler, Friederike Lindner, Ulrich Eisele, Frank Stanglmeier, Volker Rothacker, Christoph Kern, Thomas Moser
-
Patent number: 6668630Abstract: A device is proposed for monitoring the combustion process in internal combustion engines, a direct monitoring and a monitoring of individual combustion processes, in particular individual combustion chambers, being possible. This is achieved using a waveguide, which is integrated in a component, which protrudes into the combustion chamber.Type: GrantFiled: August 2, 2001Date of Patent: December 30, 2003Assignee: Robert Bosch GmbHInventors: Eckart Kuglin, Albrecht Geissinger, Gert Lindemann, Johannes Locher, Wolfgang Dressler, Friederike Lindner, Volker Rothacker, Christoph Kern
-
Patent number: 6660970Abstract: A ceramic sheathed-type glow plug, whose ceramic heating element is made of an electrically conductive conducting layer and an electrically insulating layer, is described. The conducting layer is made of lead layers and a heating layer. The higher specific electrical resistance of the heating layer allows the temperature of the heating layer and the combustion chamber to be determined. The electrical contact between a connector element and the heating element is established by a contacting element, which is in the form of a pellet made of an electrically conductive powder.Type: GrantFiled: June 27, 2002Date of Patent: December 9, 2003Assignee: Robert Bosch GmbHInventors: Albrecht Geissinger, Gert Lindemann, Christoph Haluschka, Andreas Reissner, Wolfgang Dressler, Friederike Lindner, Wolfgang Otterbach, Christoph Kern
-
Patent number: 6621196Abstract: A ceramic sheathed-element glow plug is proposed in which a metallic tubular holder holds a ceramic U-shaped heating device in a cantilevered fashion at its combustion chamber side end and has a terminal stud for applying a voltage to the ceramic heating device on the end remote from the combustion chamber. At its end enclosed by the holder, the ceramic heating device has a segment of greatest diameter and is coated with an insulating layer which has recesses for an electrical contacting. One recess is provided at the end of the ceramic heating device remote from the combustion chamber and a second recess is provided on the external wall of the ceramic heating device. A for an electrically conductive sealing compound is provided between the external wall of the ceramic heating device and the internal wall of the holder.Type: GrantFiled: November 20, 2001Date of Patent: September 16, 2003Assignee: Robert Bosch GmbHInventors: Albrecht Geissinger, Gert Lindemann, Christoph Haluschka, Thomas Nething, Wolfgang Dressler, Friederike Lindner, Horst Boeder, Matthias Rowek, Wolfgang Otterbach, Christoph Kern
-
Publication number: 20030122000Abstract: An atomizer disk (23) has at least one inlet (40) and at least one outlet (42) and a complete passage for a fluid between the inlet (40) and the outlet (42). A flow rate sensor (50, 51, 50′, 51′, 150, 151) is integrated into the atomizer disk (23) upstream from a metering cross section of the fluid passage. In this way, the flow through the atomizer disk (23) is controllable in flow operation and is actively regulatable at any time.Type: ApplicationFiled: November 12, 2002Publication date: July 3, 2003Inventors: Wolfgang Dressler, Joerg Heyse, Horst Boeder
-
Publication number: 20030116553Abstract: A sheathed-element glow plug to be mounted in a combustion chamber is proposed, a rod-shaped heating element being situated in a concentric bore hole of the housing. The heating element has a first current-carrying layer (11), a second current-carrying layer (12), and an insulating layer (15), the insulating layer (15) separating the first current-carrying layer (11) and the second current-carrying layer (12). The first current-carrying layer (11) and the second current-carrying layer (12) being connected at the end of the heating element on the combustion chamber side by a conducting-layer crosspiece (13). The first current-carrying layer (11) and the second current-carrying layer (12) are different lengths, the cross section of the first current-carrying layer (11) in a first section (21) at the end of the heating element away from the combustion chamber being greater than the cross section of its remaining length, and the second current-carrying layer (12) not extending into the first section (21).Type: ApplicationFiled: July 10, 2002Publication date: June 26, 2003Inventors: Pia Mondal, Christine Engel, Andreas Reissner, Wolfgang Dressler, Horst Boeder, Christoph Kern, Steffen Schott, Ruth Hoffmann
-
Publication number: 20030091092Abstract: A thermoelectric component (5) is proposed, which has a first and a second element (10, 11) which, in the vicinity of a contact point (12), are in contact with each other, particularly in the form of a thermal contact. Furthermore, in this connection, first element (10) and/or second element (11) have a ceramic material at least in one vicinity of contact point (12). The proposed component (5) is especially suitable as a thermocouple for measuring temperature based on the Seebeck effect, or for use in a Peltier element as a thermoelectric heating element or cooling element based on the Peltier effect.Type: ApplicationFiled: July 17, 2002Publication date: May 15, 2003Inventors: Christine Engel, Wolfgang Dressler, Alexander Klonczynski, Horst Boeder
-
Publication number: 20030092557Abstract: A ceramic composite material, for example, a ceramic molded body or a layer obtained by pyrolysis of a starting mixture, containing at least one polymer precursor material and at least one filler, which has an average particle size of less than 200 nm. Such a composite material may be used, for example, for producing fibers, filters, catalyst support materials, ceramic sheathed-element glow plugs, metal-containing reactive composite materials, porous protective shells for sensors, ceramic or partially ceramic coatings or microstructured ceramic components.Type: ApplicationFiled: October 29, 2002Publication date: May 15, 2003Inventors: Wilfried Aichele, Wolfgang Dressler, Christof Rau, Volker Knoblauch, Alexander Kloncynski, Horst Boeder
-
Patent number: 6524414Abstract: A method for producing ceramic composite bodies, in particular, cylindrical ceramic bodies for sheathed-element glow plugs, in which a plurality of shaping sleeves, which accommodate piece parts premolded by cold pressing, are inserted into corresponding bore holes of a vertically standing supporting plate that is heated via additional bore holes with the aid of cartridge heaters or a heat transfer liquid. The vertically standing supporting plate with the shaping sleeves is then clamped between two press plates of a press, and the piece parts located inside are subsequently pressed by press pins which, on both sides, pass through the press plates and into the shaping sleeves. Upon completion of the necessary pressure keeping period, the pressed compound, after retraction of the press pins and opening the press, can be hardened in a non-pressurized manner in the shaping sleeves located in the withdrawn supporting plate that is subjected to further heating.Type: GrantFiled: July 25, 2001Date of Patent: February 25, 2003Assignee: Robert Bosch GmbHInventors: Wilfried Aichele, Wolfgang Dressler
-
Publication number: 20030006875Abstract: Proposed is a passive, high-temperature-resistant resistor element for measuring temperature, the resistor element having an essentially interior insulating layer (9; 10) and two exterior conducting layers (8) of a ceramic composite structure; the conducting layers being connected to one another at the tip (11) of the resistor element; and the ceramic composite structure including trisilicon tetranitride, a metal silicide, and yttrium oxide or trisilicon tetranitride, a metal silicide, and a matrix phase of SixOyCzNw, where x signifies 1-2, y signifies 0-2, and w signifies 0-2. Further proposed is a combination element (3) of this resistor element and a sheathed type glow plug, for example.Type: ApplicationFiled: January 7, 2002Publication date: January 9, 2003Inventors: Albrecht Geissinger, Gert Lindemann, Jens Stefan Schneider, Wolfgang Dressler, Friederike Lindner, Ulrich Eisele, Frank Stanglmeier, Volker Rothacker, Christoph Kern, Thomas Moser
-
Patent number: 6437492Abstract: A ceramic sheathed element glow plug has a tubular metal casing holding a ceramic U-shaped heating device cantilevered at its end facing the combustion chamber, and on the end remote from the combustion chamber, it has a terminal pin for applying a voltage to the ceramic heating device. In the metal casing, a ceramic bushing and a ring follow the ceramic heating device at the end remote from the combustion chamber.Type: GrantFiled: July 26, 2000Date of Patent: August 20, 2002Assignee: Robert Bosch GmbHInventors: Albrecht Geissinger, Gert Lindemann, Christoph Haluschka, Thomas Nething, Wolfgang Dressler, Friederike Lindner, Horst Boeder, Matthias Rowek, Wolfgang Otterbach, Christoph Kern
-
Patent number: 4733173Abstract: Apparatus for measuring the A.C. characteristics of a circuit element under test maintains a stable D.C. bias voltage across the component under test by sensing the difference between the output voltage of the D.C. bias voltage source and the voltage drop across the circuit element under test, to control the D.C. bias voltage applied and to compensate for variable voltage drops in the measurement circuit. The apparatus compensates both for the fixed resistance in the circuit and for the variable resistance due to changing the range resistor.Type: GrantFiled: October 30, 1985Date of Patent: March 22, 1988Assignee: Hewlett-Packard CompanyInventors: Heinz-Gunter Bach, Wolfgang Dressler
-
Patent number: 4577195Abstract: The miniaturized mobile radio receiver has a straight dipole antenna whose wires run along the edge of the printed-circuit board(s) of the radio receiver and are connected at their outer ends to conductive areas. The conductive strips on the circuit board(s) which run parallel to the antenna constitute a resistive-capacitive shunt and are, therefore, open in the vicinity of the antenna base to block the flow of RF signals.Type: GrantFiled: December 19, 1983Date of Patent: March 18, 1986Assignee: International Standard Electric CorporationInventors: Manfred Schwanitz, Dietrich Gaertner, Wolfgang Dressler, Joerg Schenk
-
Patent number: 4068709Abstract: A device for the cleaning and heat recovery from the exhaust gases in a production installation for drying and heat treatment in the textile industry consisting of a housing having parallel double walled plates positioned with small intermediate spaces therebetween so that an exhaust air supply can be provided above the plates and exhaust below the plates and a countercurrent cooling fluid can flow through the double wall plates from below to above. This results in an improved heat exchange between the fluid and the air. In addition, a turbulance can be created by the air flowing through the device to improve the transfer and the plates can also be corrugated in further embodiments. Plates can be easily removed for cleaning by means of novel connecting devices.Type: GrantFiled: October 22, 1975Date of Patent: January 17, 1978Assignee: Artos Dr.-Ing. Meier Windhorst KommanditgesellschaftInventors: Alfred Schraud, Wolfgang Dressler