Abstract: A connector connects auxiliary flow lines and electrical lines that extend through and terminate at or near opposing ends of two respective components of a downhole tool string. The connector comprises a body assembly for fluidly-connecting the auxiliary flow lines and electrically-connecting the electrical lines of the respective two components, and an assembly for adjusting the length of the body assembly. The two components are discrete modules of a unitary tool, or alternatively, are distinct tools. Additionally, the connector may include a mechanism for closing the auxiliary flow lines of one or both compartments upon disconnection of the fluid connection between the two components.

Abstract: There is provided a ceramic heat exchange module 10 having fluid inlet and outlet conduits (12,20) extending from one side of horizontal manifolds (14,18). Serpentine tubes 16 extend from the opposed sides and connect the manifolds. In use, in a fluidized bed combustor 22, the manifolds are positioned between the base 30 and air inlets 32. Serpentine tubes extend into the fluidized bed 36, the fluid inlet and outlet conduits extend through the base for coupling to a working fluid supply.

Abstract: There is provided a fluidized bed combustor comprising an economizer contained in an upper interior portion and indirect heat exchange conduits suspended in the lower interior portion of the fluidized bed combustor in spaced relation to the interior surfaces of the fluidized bed combustor.

Abstract: By angling the propellant fluid inlet to the charging chamber of a liquid propellant gun and having a central vent, the tangential swirling of the entering fluid clears the chamber and the fluid of entrapped gas.