Patents by Inventor Paul A. DARSKY

Paul A. DARSKY 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).

  • Variable compression ratio connecting rod system with rotary actuator
    Patent number: 10240525
    Abstract: A variable compression connecting rod system (10) located in an internal combustion engine (12) and a method of assembly can include a connecting rod (28) mountable to a piston pin (26) having a first longitudinal axis at one end and 5 mountable to a crankpin (22) having a second longitudinal axis at a second end portion (36). A hydraulically actuated eccentric rotor (52) rotatable about one of the first and second longitudinal axis. The eccentric rotor (52) including first and second vanes (54a, 54b) for driving the rotor between first and second angular positions in response to fluid pressure acting on the first and second vanes. The eccentric rotor 10 (52) having an eccentric surface area with different radial distances (80, 82) movable into alignment with a longitudinal axis of the connecting rod (28) for varying a longitudinal length of the connecting rod (28) between the first and second longitudinal axis.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: March 26, 2019
    Assignee: BorgWarner Inc.
    Inventors: David B. Roth, Christopher J. Pluta, Paul A. Darsky, Daniel Brown
  • VARIABLE COMPRESSION RATIO CONNECTING ROD SYSTEM WITH ROTARY ACTUATOR
    Publication number: 20170241333
    Abstract: A variable compression connecting rod system (10) located in an internal combustion engine (12) and a method of assembly can include a connecting rod (28) mountable to a piston pin (26) having a first longitudinal axis at one end and 5 mountable to a crankpin (22) having a second longitudinal axis at a second end portion (36). A hydraulically actuated eccentric rotor (52) rotatable about one of the first and second longitudinal axis. The eccentric rotor (52) including first and second vanes (54a, 54b) for driving the rotor between first and second angular positions in response to fluid pressure acting on the first and second vanes. The eccentric rotor 10 (52) having an eccentric surface area with different radial distances (80, 82) movable into alignment with a longitudinal axis of the connecting rod (28) for varying a longitudinal length of the connecting rod (28) between the first and second longitudinal axis.
    Type: Application
    Filed: May 4, 2015
    Publication date: August 24, 2017
    Inventors: David B. ROTH, Christopher J. PLUTA, Paul A. DARSKY, Daniel BROWN