Patents Assigned to Kolbenschmidt
  • Piston, Especially Cooling Channel Piston, Comprising Three Friction-Welded Zones
    Publication number: 20080229923
    Abstract: A piston, especially a cooling channel piston of an internal combustion engine, has an upper part and a lower part which can be produced separately from each other and subsequently be assembled. The upper part has at least three radially peripheral joining webs and the lower part likewise at least three radially peripheral joining webs. During assembly, the webs are put together and connect the upper part firmly to the lower part.
    Type: Application
    Filed: September 17, 2005
    Publication date: September 25, 2008
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventors: Volker Gniesmer, Gerhard Luz, Emmerich Ottlickzky
  • Rotor Recess With Scupper Slots and Free Casting
    Publication number: 20080202330
    Abstract: A piston for an internal combustion engine includes a piston head provided with an annular field, and a piston shaft arranged beneath the annular field. The piston shaft has shaft surfaces and a recess surface which is arranged around a bolt borehole and set back in relation to an outer diameter of the piston. At least one cavity is provided in the region of the lowest annular groove for oil flow in the direction of the recess surface during the movement of the piston and the at least one cavity is arranged outside an especially stressed region above the bolt borehole.
    Type: Application
    Filed: November 29, 2005
    Publication date: August 28, 2008
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventors: Emmerich Ottliczky, Franz Ratzky, Norbert Ries
  • Antiadhesive Coating For Preventing Carbon Build-Up
    Publication number: 20080167403
    Abstract: A coating for a component coming into contact with carbon compounds, wherein the coating consists of a heat-resistant organic-inorganic hybrid polymer.
    Type: Application
    Filed: February 4, 2006
    Publication date: July 10, 2008
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventor: Gunter Burkle
  • Protective Layer Against Hot Gas Corrosion in the Combustion Chamber of an Internal Combustion Engine
    Publication number: 20080149897
    Abstract: A coating for a tribologically heavily loaded component, wherein the coating is in the form of a ceramic coating made of an organic-inorganic prepolymer which is pyrolyzed after being applied to the component.
    Type: Application
    Filed: February 4, 2006
    Publication date: June 26, 2008
    Applicant: KS KOLBENSCHMIDT GMBH
    Inventor: Gunter Burkle
  • Method of producing a cooling channel piston for an internal combustion engine
    Publication number: 20060000087
    Abstract: A method of producing a cooling channel piston for an internal combustion engine having a cooling channel in its piston crown, wherein a piston lower section with piston bosses, piston pin bores and piston skirts attach to the piston crown, wherein a piston blank is first produced with a circumferential collar radially projecting in the area of the piston crown, wherein the collar is then formed over, wherein, a seating area for the collar is formed in a transition zone between the piston crown and the piston lower section and the collar is formed over in such a way until its outer radially circumferential edge comes very close to or butts completely against the seating area to form a closed cooling channel.
    Type: Application
    Filed: October 13, 2004
    Publication date: January 5, 2006
    Applicant: KS Kolbenschmidt GmbH
    Inventor: Yuejun Huang
  • Manufacturing process for cooling channel piston with formable shoulder
    Publication number: 20040168319
    Abstract: Manufacturing process for a cooling channel piston with formable shoulder Process for manufacturing a cooling channel piston which has a cooling channel approximately in the area behind the ring belt, where a piston blank is shaped at least partially by forging, where in accordance with the invention it is envisaged that a circumferential shoulder is formed in the area of the heat dam also by forging, a recess is introduced behind the shoulder and the shoulder is subsequently reshaped by deformation in such a way that the recess is closed by the shoulder to form a cooling channel.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Applicant: KS Kolbenschmidt GmbH
    Inventor: Siegfried Mielke
  • Process for manufacturing a one-piece cooling-channel piston
    Patent number: 6763757
    Abstract: The invention relates to a process for manufacturing a single-piece cooling channel piston, where a piston blank produced by forging is furnished with a circumferential ring-shaped recess between the piston skirts and the piston crown and with an open-bottomed cooling channel in the area of a piston ring belt, where to increase the surface guidance area of the piston skirts it is envisioned that a component extending this piston ring belt is welded on below the piston ring belt.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: July 20, 2004
    Assignee: KS Kolbenschmidt GmbH
    Inventors: Yuejun Huang, Hartmut Kamp, Volker Gniesmer
  • Molding body for the production of cavities
    Publication number: 20040016531
    Abstract: A molding body for the production of a cavity in a metal casting such as a piston of an internal combustion engine, the molding body being composed of calcium silicate fibers held together in a solid form by a soluble binding agent.
    Type: Application
    Filed: April 9, 2003
    Publication date: January 29, 2004
    Applicant: KS KOLBENSCHMIDT GmbH
    Inventor: Gunter Gerner
  • Cooling channel piston with especially low overall height
    Patent number: 6474220
    Abstract: The invention relates to a process for producing a cooling channel piston, in which the overall height is reduced in that the annular recess has a lower height than the height of the tool used for producing the cooling channel, and the production of the cooling channels starts parallel to the piston boss face, in which the axial height of the annular recess (8) is smaller than the axial height of the cooling channel (13).
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 5, 2002
    Assignee: KS Kolbenschmidt GmbH
    Inventor: Norbert Ries
  • Piston for internal combustion engines
    Patent number: 6345599
    Abstract: A light metal piston for internal combustion engines which includes a bearing bushing comprising a shell wrapped from a rolled strip or band shaped metal material. The shell has a butt joint which is closed in a pressed-in state, with a preferred orientation of the metallurgical grain areas being formed in the circumferential direction of the shell.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: February 12, 2002
    Assignee: KS Kolbenschmidt GmbH
    Inventors: Harald Pfestorf, Siegfried Mielke, Werner Landvatter, Emmerich Ottliczky
  • Material for sliding surface bearings
    Patent number: 5908709
    Abstract: A material for sliding surface bearings comprises a backing layer of steel and a clad-on layer made of an aluminum-base bearing material. To increase the fatigue limit the material 2 for sliding surface bearings has been heat-treated at 200 to 220.degree. C. for 2 to 12 hours and the bearing material is composed of14 to 18% by weight tin,1.7 to 2.3% by weight copper,balance aluminum.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: June 1, 1999
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Klaus Deicke, Harald Pfestorf, Werner Schubert, Thomas Steffens
  • Roll-formed bushing for sliding surface bearings
    Patent number: 5836699
    Abstract: A roll-formed sliding surface bearing bushing is circular in an installed state and has a butt joint which extends throughout the width of the bushing and is closed in an installed state. To ensure a backlash-free bearing arrangement, the bushing has on its outside peripheral surface a trapezoidal profile, which includes an angle of 1.degree. to 30.degree. with the plane which contains the longitudinal axis of the bushing.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: November 17, 1998
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Karl Back, Karl Becker, Wolfgang Bickle, Thomas Storch
  • Forged or cast piston head of an oscillating shaft piston
    Patent number: 5778846
    Abstract: In a piston head of a multiple component piston for internal combustion engines, the piston floor continues radially outwards into the ring section which is provided with the piston ring grooves, the supports which carry the hubs are arranged at a distance from the inner face of the ring section and the piston pin which bears the piston shaft can be mounted in the bores of the piston pin boss. An improved manufacture of the piston head is ensured by connecting the ring section with the piston floor via a weld, solder, friction or positive locking joint.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: July 14, 1998
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventor: Siegfried Mielke
  • Material for sliding surface bearings
    Patent number: 5766778
    Abstract: A material for sliding surface bearings comprising a layer of a wrought copper-zinc alloy of thickness of about 0.1 to 1.5 mm inseparably joined to a backing layer of steel or stainless steel. A co-rolled joining strip of copper may be between the two layers.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: June 16, 1998
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Klaus Deicke, Werner Schubert, Manfred Muller
  • Arrangement of piston and connecting rod for internal combustion engines
    Patent number: 5762038
    Abstract: A piston and connecting rod arrangement for internal combustion engines, including an upper piston part, a lower piston part and a connecting rod with a spherical connecting rod end. The spherical connecting rod end defines an upper spherical segment and a lower spherical segment, and a recess having a snoutlike cross section. The spherical connecting rod end is slidingly supported with the upper spherical segment in the spherical segmental indentation, and the recess is situated between the upper spherical segment and the lower spherical segment.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: June 9, 1998
    Assignee: Kolbenschmidt AG
    Inventor: Siegfried Mielke
  • Bush-like antifriction bearing element
    Patent number: 5758977
    Abstract: In order to improve a bush-like antifriction bearing element for mounting a shaft, a pivot or other revolving component so that penetration of dirt into the bearing as well as out of the bearing, the antifriction bearing element is made pot-shaped so that the end of the antifriction bearing element remote from the end for insertion of the shaft, the pivot or the like, is defined by a bottom portion.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: June 2, 1998
    Assignee: Kolbenschmidt AG
    Inventors: Wolfgang Bickle, Thomas Storch
  • Sliding surface bearing
    Patent number: 5716144
    Abstract: A sliding surface bearing for two components of a planar swivel joint for doors and flaps, which are contacting each other and are connected by a bolt, consists of a sliding material clamped into the bore of a component with press fit. To avoid the abrasion of lacquer a collar bushing is provided on both sides of the bore.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: February 10, 1998
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Wolfgang Bickle, Manfred Muller, Thomas Storch, Herbert Rubel
  • Multilayer material for sliding surface bearings
    Patent number: 5629082
    Abstract: A multilayer material for sliding surface bearings comprises a metal backing layer, a sintered porous bearing layer of a bearing metal, and a low-friction layer consisting of a mixture of PTFE and 5 to 30% by volume metal filler, and fills also the pores of the bearing layer. To reduce the wear the mixture of PTFE and metal filler contains also 5 to 40% by volume PVDF.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: May 13, 1997
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Hans-Paul Baureis, Werner Schubert, Manfred Muller
  • Air bag apparatus for impact protection
    Patent number: 5527062
    Abstract: An air bag apparatus for impact protection in motor vehicles comprises a unit, which is adapted to be installed so as to be concealed behind an exit opening provided in the front part of the passenger compartment and comprises an air bag, a gas generator, and a housing, which accommodates the air bag and the gas generator. To protect the air bag the opening in the housing is closed by a film which is attached to the outside surface of the housing.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: June 18, 1996
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventor: Martin Kreuzer
  • Apparatus for transmitting electric power and data in motor vehicles
    Patent number: 5498911
    Abstract: In an apparatus for transmitting electric power and data between the vehicle side and the steering wheel side of a motor vehicle, a transformer is used, which comprises a stationary primary coil on the vehicle side and a secondary coil, which is provided on the steering wheel side and is non-rotatably connected to the steering shaft. Data are transmitted by a capacitor, which comprises stationary conductor strips which are provided on the vehicle side and surround the steering column and conductor strips which are provided on the steering wheel side and register with the stationary conductor strips and surround and are non-rotatably connected to the steering shaft.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: March 12, 1996
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Hans J. Bossler, Martin Kreuzer