Patents by Inventor MD Anwarul Karim

MD Anwarul Karim 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).

  • Modular exhaust manifold with independent sealing of exhaust tube and coolant passage
    Patent number: 8973356
    Abstract: An internal combustion engine includes a cylinder block defining at least one cylinder, and a cylinder head coupled to the cylinder block. A modular exhaust manifold is coupled to the cylinder head and is configured to receive exhaust gas from the cylinder head. The modular exhaust manifold includes a plurality of exhaust manifold segments coupled together along a common axis. Each of the exhaust manifold segments includes a segment of a water jacket tube defining a plurality of liquid coolant passages and a segment of an exhaust tube received within the water jacket tube segment. A joint between adjacent exhaust manifold segments includes a first sealing member configured to seal the exhaust tube at the joint and a second sealing member configured to seal at least one of the liquid coolant passages at the joint. The first and second sealing members are supported on and movable with different components.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: MD Anwarul Karim, Robert A. Sarsfield, Daniel Richard Barb, Scott Alan Chockley
  • Air Shielded Water Cooled Exhaust Manifold With Exhaust Tube Support
    Publication number: 20140208726
    Abstract: An internal combustion engine includes a cylinder block defining at least one cylinder, and a cylinder head coupled to the cylinder block. An exhaust manifold is coupled to the cylinder head and configured to receive exhaust gas from the cylinder head. The exhaust manifold includes a water jacket tube defining a plurality of liquid coolant passages and an exhaust tube received within the water jacket tube. The exhaust manifold also includes an air gap between the exhaust tube and the water jacket tube. A support mat is positioned in the air gap and compressed between an outer surface of the exhaust tube and an inner surface of the water jacket tube.
    Type: Application
    Filed: January 30, 2013
    Publication date: July 31, 2014
    Applicant: CATERPILLAR, INC.
    Inventors: MD Anwarul Karim, Robert A. Sarsfield, Daniel Richard Barb
  • Modular Exhaust Manifold With Independent Sealing Of Exhaust Tube And Coolant Passage
    Publication number: 20140116036
    Abstract: An internal combustion engine includes a cylinder block defining at least one cylinder, and a cylinder head coupled to the cylinder block. A modular exhaust manifold is coupled to the cylinder head and is configured to receive exhaust gas from the cylinder head. The modular exhaust manifold includes a plurality of exhaust manifold segments coupled together along a common axis. Each of the exhaust manifold segments includes a segment of a water jacket tube defining a plurality of liquid coolant passages and a segment of an exhaust tube received within the water jacket tube segment. A joint between adjacent exhaust manifold segments includes a first sealing member configured to seal the exhaust tube at the joint and a second sealing member configured to seal at least one of the liquid coolant passages at the joint. The first and second sealing members are supported on and movable with different components.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: CATERPILLAR, INC.
    Inventors: MD Anwarul Karim, Robert A. Sarsfield, Daniel Richard Barb, Scott Alan Chockley