IMAGE CONDUIT FOR FUEL NOZZLE ASSEMBLIES
    5.
    发明申请

    公开(公告)号:US20180252411A1

    公开(公告)日:2018-09-06

    申请号:US15971814

    申请日:2018-05-04

    Applicant: Delavan Inc.

    Abstract: A fuel nozzle for a gas turbine engine includes a feed arm including a fuel passage for issuing a spray of fuel. A nozzle assembly is fixed at an upstream end of the feed arm having a fuel inlet in fluid communication with the fuel passage. A fiber optic cable is configured to collect burner radiation for a pyrometer input and has a first end centered within an optical connector of the nozzle assembly and a second end exposed from the spray outlet. The fiber optic cable fitted within the feed arm and nozzle assembly has a permanent bend radius preformed in the fiber optic cable. The bend radius can be equal to or greater than the minimum bend radii for the fiber optic cable to serve as a wave guide in wavelengths for monitoring combustion.

    Method and apparatus for measuring the temperature of a molten metal

    公开(公告)号:US09726545B2

    公开(公告)日:2017-08-08

    申请号:US14264510

    申请日:2014-04-29

    CPC classification number: G01J5/004 B22D2/006 G01J5/042 G01J5/048 G01J5/0821

    Abstract: A method, device and apparatus are provided for measuring the temperature of a melt, particularly of a molten metal, with an optical fiber, fed into the melt through a disposable guiding tube. The optical fiber and an immersion end of the tube are immersed into the melt and have feeding speeds which are independent from each other. An elastic plug is arranged within the tube or at an end of the tube opposite the immersion end. The optical fiber is fed through the elastic plug, and the elastic plug reduces a gap between the optical fiber and the tube, which has a larger inner diameter than the outer diameter of the optical fiber. The apparatus includes a fiber coil and a feeding mechanism for feeding the optical fiber and the tube, including at least two independent feeding motors, one for feeding the optical fiber and one for feeding the tube.

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