Patents by Inventor Karl-Heinz Menzl

Karl-Heinz Menzl 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: 6675763
    Abstract: Described is a molded part made of light metal, in particular a crankcase for an internal combustion engine, comprising holes (5) for receiving fastening screws (6) with the help of which compressive strains can be exerted on the molded body in a light metal area. In order to create advantageous constructional conditions, it is proposed that at least one open-pored sintered body (7) is cast in the light metal area exposed to compressive strains with infiltration of the light metal at least in the pores of a surface layer; and that the sintered body (7) having a lower coefficient of thermal expansion than the light metal has a strength at least corresponding with the strength of the light area when combined with the infiltrated light metal.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: January 13, 2004
    Assignees: Miba Sintermetall Aktiengesellschaft, KS Aluminium-Technology AG
    Inventors: Raimund Ratzi, Karl-Heinz Menzl
  • Patent number: 6357412
    Abstract: The description relates to a crankcase made of light metal for an internal combustion engine with a parting plane (4) running through the crankshaft axis between a case upper part and a case bottom part, whose bearing walls (2), which connect the case outer walls (1), are provided with inserts (3) made of an iron material, in which the bearing shells of the crankshaft bearing and the bearing bolts (7) provided on both sides of the bearing shells are borne. To achieve favorable construction features it is suggested that the bearing walls (2) forming a continuous light metal bridge between the case outer walls (1) accommodate the inserts (3) that are lower than the bearing walls (2) in recesses (8) starting from the parting plane (4) and are provided, in the area of the bearing bolts (7), with through holes (9) for the bolt heads (10).
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: March 19, 2002
    Assignee: Miba Sintermetall Aktiengesellschaft
    Inventor: Karl-Heinz Menzl