Patents by Inventor Li-Keng Tseng

Li-Keng Tseng 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).

  • Swirling, impinging sheet injector
    Patent number: 6351939
    Abstract: An injector for injecting a first liquid propellant and a second liquid propellant into a combustion chamber of a rocket engine. The injector includes a first injection element for injecting a first portion of the first liquid propellant into the combustion chamber such that the first portion of the first liquid propellant enters the combustion chamber in a first sheet or stream. A second injection element is spaced radially outward from the first injection element and injects a second portion of the first liquid propellant into the combustion chamber such that the second portion of the first liquid propellant enters the combustion chamber in a second stream. The first and second streams collide, causing the first and second portions of the first liquid propellant to at least partially atomize.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: March 5, 2002
    Assignee: The Boeing Company
    Inventors: Harold William Buddenbohm, Li-Keng Tseng