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Pulsed detonation engine wave rotor

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TLDR
A pulsed detonation engine wave rotor apparatus and method of using a pressure wave to compress a buffer gas disposed within the engine flow passages is described in this paper, where the high pressure buffer gas is routed out of the wave rotor and subsequently reintroduced to the rotor to discharge and scavenge the latter stages of the combustion gas remaining under the engine's flow passages.
Abstract
A pulsed detonation engine wave rotor apparatus and method of using a pressure wave to compress a buffer gas disposed within the engine flow passages. The high pressure buffer gas is routed out of the wave rotor and subsequently reintroduced to the wave rotor to discharge and scavenge the latter stages of the combustion gas remaining under the engine flow passages.

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Rotary pressure transfer device

TL;DR: In this paper, a pressure transfer device for the transfer of pressure energy from a high pressure fluid stream to a lower pressure liquid stream was proposed. But the end covers and the accompanying components of the device were constructed so as to allow the channels to be at least twice filled with a high-pressure first liquid during each revolution of the rotor and thus discharge twice the volume of a pressurized second liquid than if they were filled only one with high pressure liquid.
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Rotary ejector enhanced pulsed detonation system and method

TL;DR: A rotary ejector enhanced wave rotor pulsed detonation (WRPDE) engine and method are provided in this article, where the rotor includes a plurality of shrouded forward combustion passages in which detonative combustion occurs and each forward combustion passage has an inlet end for communication with the inlet port.
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Constant volume combustor

TL;DR: In this paper, the wave rotor of a constant volume combustor is supported by magnetic bearings, and the detonative combustion is suppressed by a magnetometer and a fire extinguisher.
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Pilot fuel injection for a wave rotor engine

TL;DR: In this paper, a wave rotor combustor or a pulse detonation combustor is used to inject fuel into a combustion channel, which compresses discrete quantities of combustible and non-combustible mixture.
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Wave rotor apparatus

TL;DR: A wave rotor apparatus is provided in this article, which includes fluid passageways oriented in a direction offset from its rotational axis, and a wave rotor has an igniter and fuel injector.
References
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Gas turbine engine

Coleman, +1 more
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Rotary valve multiple combustor pulse detonation engine

TL;DR: In this article, a pulse detonation engine is provided with several detonation combustors selectively coupled to an air inlet and fuel source by a rotary valve, which isolates the steady operation of the air and fuel system from the unsteady nature of the detonation process.
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Pressure exchanger for liquids

Leif J Hauge
TL;DR: In this article, a pressure exchanger for transfer of pressure energy from a liquid stream belonging to a first fluid system to another liquid stream from another liquid system, comprising a housing (1) provided inlet and outlet conduits forming pairs for each liquid stream.
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Method and apparatus for cold gas reinjection in through-flow and reverse-flow wave rotors

TL;DR: In this paper, a method and apparatus for cold gas reinjection in through-flow and reverse-flow wave rotors having a plurality of channels formed around a periphery thereof is presented.
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Forced purge wave rotor

TL;DR: In this article, the wave rotor is a five-port device and working fluid from the highest pressure outlet port is routed to a port adjacent to and preceding an inlet port admitting air from the compressor.