HEAT EXCHANGERS

摘要

A heat exchanger which may be used in an engine, such as a vehicle engine for an aircraft or orbital launch vehicle. is provided. The heat exchanger may be configured as generally drum-shaped with a multitude of spiral sections, each containing numerous small diameter tubes. The spiral sections may spiral inside one another. The heat exchanger may include a support structure with a plurality of mutually axially spaced hoop supports, and may incorporate an intermediate header. The heat exchanger may incorporate recycling of methanol or other antifreeze used to prevent blocking of the heat exchanger due to frost or ice formation.

主权项

1. A heat exchanger, comprising:
at least one first conduit section for the flow of a first fluid in heat exchange with a second fluid in a flow path which passes the at least one first conduit section; and a support for the at least one first conduit section, wherein the at least one first conduit section is mounted at a first location to the support, and the at least one first conduit section at a second location thereon is movable relative to the support in response to thermal change.