Rolls-Royce Corporation

Mark Nicholas Erlund

Steven John Thorpe

Clare Bonham

A temperature and pressure probe () comprising an elongate outer tube () and elongate inner tube (). Each tube having a peripheral wall (), a first open end () and a second closed end (); the outer tube thereby defining an outer cavity () and the inner tube defining an inner cavity (). The inner tube is located wholly within the outer cavity and is spaced from the outer peripheral wall () and second end (). A temperature sensor () is located in the inner cavity. A pressure sensor () is located in the outer cavity. A vent pipe () is coupled between the inner peripheral wall and the outer peripheral wall, the vent pipe having a first end open to the inner cavity () and a second end open to vent outside the probe ().

Probe

A total temperature probe comprising a hollow elongate shroud defined by a shroud wall that envelops a first cavity. The shroud wall is comprised of an inner skin and an outer skin which enclose a second cavity therebetween. A temperature sensor mounted in the first cavity. In use, fluid flow is received into the first cavity, passes through at least one aperture in the inner skin into the second cavity and then passes out of the shroud through at least one aperture in the outer skin. Beneficially, heat conduction across the inner skin is minimal.

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Lincoln, United Kingdom

Mark Nicholas Erlund