Patents by Inventor John A. Rennekamp

John A. Rennekamp 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).

  • Turbocharger compressor bypass coaxial re-introduction system to optimize transient load response
    Patent number: 11174822
    Abstract: A compressor bypass reintroduction system includes a compressor intake manifold and a bypass conduit. The compressor intake manifold defines a fluid plenum. The compressor intake manifold is engageable with a compressor. The bypass conduit extends into the fluid plenum and includes an ejector line. The ejector line is configured to be substantially collinear with the compressor and to discharge flow toward the compressor. In some embodiments, an outlet of the ejector is disposed proximate to an outlet of the fluid plenum that discharges flow into the compressor.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 16, 2021
    Assignee: Cummins Power Generation Inc.
    Inventors: Jeremy A. Lackey, Alan C. Anderson, Joshua Bradley Bettis, Steven L. Leffler, Dilip Ramachandran, John A. Rennekamp, Axel O. Zur Loye, Andrew Guy Kitchen, George Martin Tolhurst
  • Air intake system for internal combustion engine
    Patent number: 10113521
    Abstract: An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, charge motion consistency is improved between engine cylinders and between the left bank and the right bank, thereby improving the consistency of combustion and power output, improving efficiency and reducing emissions (e.g., decreased particulate emissions (also described as smoke), hydrocarbon emissions, and NOx emissions), and further including an improved knock margin, improved fuel economy, wider rich and lean limits, etc.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: October 30, 2018
    Assignee: CUMMINS INC.
    Inventors: Pallav Jha, Axel Zur Loye, Joseph Scot Roederer, Steven L. Leffler, John A. Rennekamp, Amit A. Kulkarni, Peter Vinson Woon, Andrew Guy Kitchen
  • AIR INTAKE SYSTEM FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20170152820
    Abstract: An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, charge motion consistency is improved between engine cylinders and between the left bank and the right bank, thereby improving the consistency of combustion and power output, improving efficiency and reducing emissions (e.g., decreased particulate emissions (also described as smoke), hydrocarbon emissions, and NOx emissions), and further including an improved knock margin, improved fuel economy, wider rich and lean limits, etc.
    Type: Application
    Filed: February 9, 2017
    Publication date: June 1, 2017
    Inventors: Pallav Scot Jha, Axel Zur Loye, Joseph Scot Roederer, Steven L. Leffler, John A. Rennekamp, Amit A. Kulkarni, Peter Vinson Woon, Andrew Guy Kitchen