摘要:
A regenerative heat exchanger for transferring heat from the exhaust gas to the intake working fluid of a prime mover. Application includes gas turbines for both motor vehicles and distributed electric generation. The heat exchanger employs a rotating matrix, which circulates through working fluid exhaust and intake channels while absorbing and rejecting heat between the two channels. Features include corrugated tubes for enhanced heat transfer, minimally welded low stress construction, quick-detach assembly of standard components, and purge flow sealing using recovered heat. Effectiveness exceeding 95% increases thermal efficiency of low-pressure ratio gas turbines.
摘要:
An automotive turbine regenerator system employs sectored matrix elements which are extruded and then assembled into the larger rotary regenerator. Discontinuous rotation is taught such that the seals are not rubbing seals but rather are clamping seals thus radically reducing the leakage and the wear on seal components.
摘要:
Various forms of energy, such as mechanical, electrical, and/or heat energy are produced by an energy conversion mechanism which includes a spool, the spool including a shaft on which a compressor and turbine are mounted. A generator is operably connected to the energy conversion mechanism for converting mechanical energy thereof into electrical energy. Fuel and air are supplied separately to the compressor. A regenerator type heat exchanger has a cold side for conducting compressed air traveling from an outlet of a compressor to an inlet of the microturbine, a hot side for conducting hot waste gas from the energy conversion mechanism, and a rotary core movable sequentially through the cold and hot sides for absorbing heat in the hot side and giving up heat in the cold side. A catalytic combustor combusts the fuel at a location upstream of the turbine. During start-up, the catalytic combustor is preheated independently of the heat exchanger by an electric heater.
摘要:
The invention relates to a rotary heat exchanger.Springs 18, or compressed air, housed between the steel rim 2 and the cellular ceramic disk 1, exert a compressive prelateral tightness over about one-third of the surface, for the passing of the cool air of admission. The remainder of the disk is passed through by hot exhaust gases. A gas turbine, in particular for a lorry, wherein the disk 1 is subjected to abrupt accelerations and decelerations.
摘要:
A rotary heat exchanger of the type having a ceramic core surrounded and driven by a ring gear is provided with a compressed air or spring arrangement between the periphery of the core and the ring gear to apply a radial compression force to the core at all times during operation of the exchanger to assist in accommodating abrupt accelerations and decelerations in the rotation of the exchanger.
摘要:
One of two axially spaced annular heat exchangers, interconnected in a closed circuit traversed by a fluidic heat carrier, serves to preheat a flow of ambient air downstream of a compressor which impels that flow toward a combustion chamber where an air-fuel mixture is ignited to drive a turbine coupled with the compressor. The other heat exchanger, which extends radially beyond the first-mentioned heat exchanger to create a thermosiphon effect for the circulation of the carrier, abstracts residual heat from the expanding gas flow downstream of the turbine. In one embodiment, the compressor and the turbine are interconnected by a central shaft surrounded by a coaxial tubular member which carries the two heat exchangers; in another embodiment this relationship is reversed.
摘要:
Rotary disc regenerator, and regenerative air-cooled gas turbine engines embodying the same, characterized by non-rubbing seals which are effective to minimize air-to-exhaust leakage and make it possible to employ a sheet metal matrix as the heat exchange means of the regenerator.
摘要:
In a thermal regenerator for a gas turbine a matrix is rotatably mounted in a housing. To segregate high and low pressure gas flows through the matrix a sealing assembly is provided in which a pad seal is urged into contact with the matrix and the space between seal and housing is closed by an elastomeric curtain.
摘要:
A gearbox for driving the various accessories of a gas turbine provided with rotating heat exchangers. The gearbox has a triangular shape and fits on the front of the turbine. An electric starter is mounted on the gearbox casing parallel to the longitudinal axis of the turbine and extends under one end of the turbine.
摘要:
A gas turbine of the type having a pair of rotary heat exchanger discs mounted for rotation about a common axis transverse to the main axis of the turbine on opposite sides thereof is provided with a drive arrangement which will provide for expansion between the disc and an annular drive ring surrounding the disc. The annular drive ring is provided with a plurality of external teeth disposed in meshing engagement with a pinion drivingly connected to the main gear box of the turbine. A plurality of cylindrical rods are mounted in a plurality of equally spaced apart grooves in the circumference of each of the discs. Each cylindrical rod is formed with an arcuate groove in the external surface thereof for the reception of a key member having a convex surface which rests in the arcuate groove and two plain surfaces which define a dihedron, the edge of which is disposed adjacent the internal surface of the annular ring. A pair of wedge members are disposed in engagement with each of the surfaces of the key. The wedges are biased into engagement with the key by means of a spring extending between the wedge and a rib formed on the internal surface of the annular ring.