公开(公告)号：US20180274787A1

公开(公告)日：2018-09-27

申请号：US15470796

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher Britton Greene ,  Adam Takashi Holley ,  Peter AT Cocks

IPC: F23R7/00 ,  F02C3/04

CPC classification number: F23R7/00 ,  F02C3/04 ,  F02C3/16 ,  F02C5/00 ,  F02C5/02 ,  F02K7/02 ,  F05D2240/35 ,  F23R3/56

Abstract: A rotating detonation engine includes an annulus having a first wall, a second wall, and a volume having a detonation region in which a mixture of an oxidizer and a fuel detonate in a rotating fashion to create a pressure wave and detonation exhaust, the volume defining a downstream outlet through which detonation exhaust flows. The engine further includes an oxidizer outlet to output oxidizer and a fuel outlet to output fuel into the volume. The engine further includes an obstacle positioned in the volume and extending for an obstacle distance between the first wall and the second wall that is at least twenty five percent of an annulus distance from the first wall to the second wall, the obstacle designed to reflect the pressure wave such that a reflection of the pressure wave travels downstream and reduces an amount of the detonation exhaust that travels upstream.

公开(公告)号：US11591101B2

公开(公告)日：2023-02-28

申请号：US16743966

申请日：2020-01-15

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher Britton Greene ,  Stuart S. Ochs

IPC: B64D33/02 ,  F02C7/04 ,  F02K7/02

Abstract: A diffuser may comprise an inlet and an outlet. The inlet may comprise an arcuate shape. The outlet may comprise an annular shape. The diffuser may transition from the arcuate shape at the inlet to the annular shape at the outlet. The diffuser may comprise a radially inner wall and a radially outer wall disposed opposite the radially inner wall. The radially inner wall and the radially outer wall may partially define a duct.

公开(公告)号：US10436110B2

公开(公告)日：2019-10-08

申请号：US15470783

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Adam Takashi Holley ,  Peter A T Cocks ,  Christopher Britton Greene

IPC: F02C7/00 ,  F42B3/08 ,  F02C5/04 ,  F02C5/12 ,  F42B1/02

Abstract: A rotating detonation engine includes an annulus that defines a volume in which a mixture of an oxidizer and a fuel detonate in a rotating fashion, the volume defining a downstream outlet through which detonation exhaust flows. The rotating detonation engine further includes a wave arrestor positioned upstream from a location of detonation and configured to reduce a magnitude of a pressure wave traveling upstream from the location of detonation.

公开(公告)号：US20180274442A1

公开(公告)日：2018-09-27

申请号：US15470783

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Adam Takashi Holley ,  Peter AT Cocks ,  Christopher Britton Greene

IPC: F02C7/00 ,  F42B3/08

CPC classification number: F02C7/00 ,  F02C5/04 ,  F02C5/12 ,  F42B1/02 ,  F42B3/08

Abstract: A rotating detonation engine includes an annulus that defines a volume in which a mixture of an oxidizer and a fuel detonate in a rotating fashion, the volume defining a downstream outlet through which detonation exhaust flows. The rotating detonation engine further includes a wave arrestor positioned upstream from a location of detonation and configured to reduce a magnitude of a pressure wave traveling upstream from the location of detonation.

公开(公告)号：US20180274439A1

公开(公告)日：2018-09-27

申请号：US15470770

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Adam Takashi Holley ,  Christopher Britton Greene ,  Peter AT Cocks

IPC: F02C3/04 ,  F23R3/34 ,  F23R3/12 ,  F23R3/28

CPC classification number: F23R7/00 ,  F02K7/00 ,  F05D2240/35 ,  F05D2240/36 ,  F23R3/286 ,  F23R3/346 ,  F23R3/56

Abstract: A fuel mixer for mixing a fuel and an oxidizer prior to detonation in a rotating detonation engine includes a combustion channel configured to transport a final mixture of the fuel and the oxidizer for combustion. The fuel mixer also includes a mixture channel positioned upstream from the combustion channel and configured to transport a first mixture having at least some of the fuel and at least some of the oxidizer. The fuel mixer also includes a secondary outlet positioned upstream from the combustion channel and configured to output a supplemental mixture of the fuel and the oxidizer that includes at least one of the fuel or the oxidizer such that the first mixture and the supplemental mixture combine in the combustion channel to form the final mixture.

公开(公告)号：US20210215168A1

公开(公告)日：2021-07-15

申请号：US16742591

申请日：2020-01-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher Britton Greene ,  Dustin Joseph Frohnapfel

IPC: F04D29/36 ,  F02C3/06 ,  F02K3/06

Abstract: A boost compressor assembly may comprise an outer annular structure and a plurality of blades. Each blade in the plurality of blades may be moveably coupled to the outer annular structure. The plurality of blades may be configured to deploy in response to the boost compressor assembly rotating. The plurality of blades may be configured to retract when the boost compressor assembly stops rotating.

公开(公告)号：US11326617B2

公开(公告)日：2022-05-10

申请号：US16742591

申请日：2020-01-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher Britton Greene ,  Dustin Joseph Frohnapfel

IPC: F04D29/36 ,  F02C3/06 ,  F02K3/06 ,  F01D7/02

Abstract: A boost compressor assembly may comprise an outer annular structure and a plurality of blades. Each blade in the plurality of blades may be moveably coupled to the outer annular structure. The plurality of blades may be configured to deploy in response to the boost compressor assembly rotating. The plurality of blades may be configured to retract when the boost compressor assembly stops rotating.

公开(公告)号：US20180274788A1

公开(公告)日：2018-09-27

申请号：US15470800

申请日：2017-03-27

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher Britton Greene ,  Adam Takashi Holley ,  Peter AT Cocks

IPC: F23R7/00 ,  F02C3/04

CPC classification number: F23R7/00 ,  F02C3/04 ,  F02C5/00 ,  F02C5/02 ,  F05D2240/35 ,  F23R3/56

Abstract: A rotating detonation engine includes an annulus that defines a volume having a detonation region which is configured for a mixture of an oxidizer and a fuel to detonate in a rotating fashion, the volume defining a downstream outlet through which detonation exhaust flows. The rotating detonation engine further includes an oxidizer outlet configured to output the oxidizer into the volume. The rotating detonation engine further includes a fuel outlet configured to output the fuel into the volume such that the oxidizer and the fuel are initially insufficiently mixed to facilitate combustion. The rotating detonation engine further includes an obstacle positioned upstream from the detonation region and configured to mix the fuel and the oxidizer that are directed upstream in response to a passing detonation.