Patents by Inventor Oldrich S. Kolarik

Oldrich S. Kolarik 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: 5320278
    Abstract: An improved high pressure fuel injector for internal combustion engines in which problems of hysteresis delays and fuel leakage at the commencement of the metering process can be avoided without affecting the ability to precisely control the fuel supply pressure by the provision of a way for the metering and injection plunger to be acted upon only by the pressure of the incoming fuel supply. An improved metering and injection plunger spring arrangement provides a valving of the drain path that prevents leakage through drain passages and/or about the metering and injection plunger during the fuel metering and injection phases. Also, a double check valve arrangement is incorporated into the plunger seat disc to minimize the possibility of back-flow leakage of fuel during injection of the fuel from the metering and injection chamber.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: June 14, 1994
    Assignee: Cummins Engine Company, Inc.
    Inventors: Oldrich S. Kolarik, Tibor J. Villanyi
  • Patent number: 5275337
    Abstract: A pressure responsive spring valve which is able to function at high pressures and temperatures, and can attain a high degree of precision control in a minimum of space, as well as an improved high pressure fuel injector for internal combustion engines which uses such a spring valve to achieve the demanding performance characteristics of the more complex new injector designs within limited space requirements. In all cases, a band-like spring valve member is used to reduce the number of parts and the space requirements therefor relative to that required for a coil spring type pressure control valve.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: January 4, 1994
    Assignee: Cummins Engine Company, Inc.
    Inventors: Oldrich S. Kolarik, Jeffery L. Campbell
  • Patent number: 5121324
    Abstract: An electronic integrated engine and vehicle management and control system includes an electronic vehicle control module and a fuel injection control module, in communication with each other, which together control the total vehicle and engine operation functions of a heavy duty vehicle. A novel fuel injection timing device is utilized with the control module to allow precise and sophisticated control of engine timing based on a number of engine and vehicle operating parameters as determined by the control modules. Functions such as engine speed control, vehicle road speed control, engine protection shutdown, fuel economy, braking control and diagnostics are performed by the system.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: June 9, 1992
    Assignee: Mack Trucks, Inc.
    Inventors: Guy T. Rini, Oldrich S. Kolarik, James E. Marsden, June M. Warner, Ramin Younessi, Dolyn P. Ruffner, Stephen W. Heffner
  • Patent number: 4350352
    Abstract: Piston ring and groove assemblies are provided for forming a seal between a piston ring side and an adjacent wall of a piston ring groove during engine operation even when the piston is eccentric or tilted relative to a cylinder within which said piston moves.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: September 21, 1982
    Assignee: Mack Trucks, Inc.
    Inventor: Oldrich S. Kolarik