Patents by Inventor Kwok Y. Lau

Kwok Y. Lau 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).

  • Blade tip clearance control arrangement for a gas turbine
    Patent number: 5092737
    Abstract: A blade tip clearance control arrangement for a compressor of a gas turbine engine comprises a first annular control member which defines a portion of the gas flowpath through the compressor and which is spaced from the tips of the rotor blades by a clearance. The first annular control member is positioned coaxially inwardly of a pair of second annular control members and is secured thereto by a radially resilient annular support member.The first annular control member is formed from a relatively low expansion material and the second annular control members are formed from a relatively high expansion material.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: March 3, 1992
    Assignee: Rolls-Royce plc
    Inventor: Kwok Y. Lau