公开(公告)号：US4930309A

公开(公告)日：1990-06-05

申请号：US267994

申请日：1988-11-03

Applicant: Neil W. Hartman

Inventor： Neil W. Hartman

IPC: F02K7/10 ,  F02K7/12

CPC classification number: F02K7/12

Abstract: A gas compressor is provided which can be utilized in a jet engine for propulsion of a flight vehicle at velocities ranging from static to very high Mach numbers. The jet engine includes a housing with an inlet, a mixing chamber in fluid communication with the inlet, a diffuser section in fluid communication with the mixing chamber, a combustion chamber in fluid communication with the diffuser section and an outlet in communication with the combustion chamber. Auxiliary gas injection nozzles located downstream of the mixing chamber direct a high velocity gas stream toward the outlet to induce a region of sufficiently low pressure within the mixing chamber to cause a supersonic flow of gas from the inlet section through the mixing chamber. Cryogenic fuel is injected into the mixing chamber to modify the stagnation enthalpy, pressure and temperature of the supersonic flow therethrough. Fuel is injected into the combustion chamber where the mixture of the compressed air flow from the diffuser and the fuel is ignited to produce thrust. The outlet is adjustable to provide the amount of back pressure required in the combustion chamber for stable operation.

公开(公告)号：US4494625A

公开(公告)日：1985-01-22

申请号：US518702

申请日：1983-07-29

Applicant: H. Bernard Mathes

Inventor： H. Bernard Mathes

IPC: F02K1/44 ,  F02K7/12

CPC classification number: F02K7/12 ,  F02K1/44

Abstract: Apparatus for attenuating upstream gas motion induced by axial acoustic ws in a ramjet engine includes a series of hollow truncated conical attenuators acting to both modify and enhance fuel-oxidizer mixing and offering negligible resistance to downstream gas motion while offering substantial resistance to upstream gas motion within the engine.

Abstract translation: 用于衰减冲压式喷气发动机中由轴向声波引起的上游气体运动的装置包括一系列中空截锥形衰减器，其用于改变和增强燃料 - 氧化剂混合并提供对下游气体运动的可忽略的阻力，同时对上游气体运动提供显着的阻力， 引擎。

公开(公告)号：US3800529A

公开(公告)日：1974-04-02

申请号：US3800529D

申请日：1973-06-04

Applicant: SHARPE T

Inventor： SHARPE T

IPC: F02K7/12 ,  F02K3/10

CPC classification number: F02K7/12

Abstract: An engine including a self-starting engine compressor unit comprising a burner duct defining a converging-diverging inlet at its forward end, a converging exhaust nozzle at its rear end, and a combustion chamber therebetween; a fuel injection device for injecting fuel under pressure axially through the throat of the inlet into the combustion chamber to draw air therewith into the chamber; and preheater means for heating the chamber to a predetermined temperature. The compressor unit may include a bypass duct encircling the burner duct with an inlet opening forward of the inlet to the burner duct and a converging exhaust opening rearward of the exhaust nozzle so that air will be drawn through the bypass duct by the jet pumping action of the exhaust gases from the burner duct in combination with the exhaust opening in the bypass duct. The fuel injection device may be equipped with pressure responsive means for transferring the point of injection from forward of the throat of the inlet of the burner duct to a point rearward of the throat and within the combustion chamber. The compressor unit may be embodied in a jet engine as a start stage with intermediate and final ram-jet type stages.

Abstract translation: 一种发动机，其包括自启动发动机压缩机单元，其包括在其前端限定会聚发散入口的燃烧器管道，其后端处的会聚式排气喷嘴和其间的燃烧室; 燃料喷射装置，用于在压力下将燃料轴向喷射通过入口的喉部进入燃烧室，以将空气吸入腔室; 以及用于将室加热到预定温度的预热装置。 压缩机单元可以包括围绕燃烧器管道的旁通管道，入口开口位于燃烧器管道的入口前方，并且在排气喷嘴后方具有会聚排气口，使得空气将通过旁通管道被喷射泵送作用 来自燃烧器管道的废气与旁通管道中的排气口组合。 燃料喷射装置可以配备有压力响应装置，用于将喷射点从燃烧器管道的入口的喉部的前方转移到喉部后方和燃烧室内的点。 压缩机单元可以以喷射发动机的形式实现为具有中间和最终冲压喷射型级的起始阶段。

公开(公告)号：US3568443A

公开(公告)日：1971-03-09

申请号：US3568443D

申请日：1969-08-14

Applicant: ROBERT S ESTES ,  EDWARD S MERRILL ,  JAY KURTZ ,  JAMES LINAHAN ,  CLEMENT CARL ,  ROYAL M GALVIN

Inventor： FONDA-BONARDI GIUSTO

IPC: F02K7/12 ,  F01K3/18

CPC classification number: F02K7/12

Abstract: THIS INVENTION RELATES TO A FLUID-DYNAMIC ENGINE WHEREIN A GAS IS ACCELERATED THROUGH THE ENGINE AT THE SPEED OF SOUND AT THE SONIC SPEED OF THE GAS AND IMPARTING ENERGY TO THE GAS WHILE MAINTAINING IT AT THE SONIC SPEED. THE ENGINE MAY COMPRISE A DUCT HAVING A SONIC DUCT SECTION INTERPOSED BETWEEN CONVERGENT AND DIVERGENT SECTIONS SO THAT IT IS SUCCESSIVELY ACCELERATED TO THE SONIC SPEED THROUGH THE CONVERGENT SECTION AND MOVES THROUGH THE SONIC SECTION AT THE SONIC SPEED. THE ENGINE INCLUDES STARTING MEANS FOR MOMENTARILY IMPARTING A VELOCITY EQUAL TO THE SPEED OF SOUND WHEN THE GAS IS QUIESCENT TO ACCELERATE IT TO SONIC SPEED. THE STARTING MEANS MAY ALSO COMPRISE MEANS FOR ISOLATING A PORTION OF THE GENERATING FLUID PATH WHILE THE GAS IS QUIESCENT AND EVACUATING THE ISOLATED PATH SO THAT THE FLUID OUTSIDE THE ISOLATED PATH MAY BE ACCELERATED TO SONIC SPEED AND THEN PASSING IT THROUGH THE ISOLATED PATH TO START THE ENGINE.

公开(公告)号：US1493157A

公开(公告)日：1924-05-06

申请号：US67978523

申请日：1923-12-10

Applicant: FABRICE MELOT HENRI

Inventor： FABRICE MELOT HENRI

IPC: F02K7/12

CPC classification number: F02K7/12

公开(公告)号：US20050178856A1

公开(公告)日：2005-08-18

申请号：US10755570

申请日：2004-01-12

Applicant: Mark Holtzapple ,  Othon Rediniotis

Inventor： Mark Holtzapple ,  Othon Rediniotis

IPC: F02C3/32 ,  F02K7/12 ,  F23D11/10

CPC classification number: F02K7/12 ,  F02C3/32 ,  F05D2250/292 ,  F05D2250/311 ,  F05D2260/601 ,  Y02T50/671

Abstract: According to one embodiment of the invention, a system for altering fluid flow includes a main body having a first fluid flowing therethrough, a plurality of conduits disposed within the main body to form a plurality of flow paths, and a nozzle directing a second fluid through the innermost conduit. The second fluid has a greater velocity than the first fluid. The second fluid successively entrains the first fluid flowing through the flow paths in such a manner that the portion of the first fluid flowing through the innermost flow path existing between the innermost conduit and its adjacent conduit is entrained first and the portion of the first fluid flowing through the outermost flow path existing between the outermost conduit and the main body is last.

Abstract translation: 根据本发明的一个实施例，用于改变流体流动的系统包括具有流过其中的第一流体的主体，设置在主体内的多个导管，以形成多个流路，以及将第二流体引导通过的喷嘴 最内层的导管。 第二流体具有比第一流体更大的速度。 第二流体依次夹持第一流体流过流动路径，使得流过最内流道的第一流体的部分流过最内导管及其相邻导管之间，并且第一流体的一部分流动 通过存在于最外面的导管和主体之间的最外面的流路是最后的。

公开(公告)号：US5946904A

公开(公告)日：1999-09-07

申请号：US909509

申请日：1997-08-12

Applicant: John J. Boehnlein ,  Joseph G. Bendot

Inventor： John J. Boehnlein ,  Joseph G. Bendot

IPC: F02K7/10 ,  F02K7/16 ,  F02K7/12

CPC classification number: F02K7/16

Abstract: The ejector ramjet engine is a propulsion duct having normal augmented ramjet elements of an inlet, mixer, diffuser, combustor and exit nozzle. At the upstream end of the mixer an injector assembly is mounted in the fluid flow path to form an ejector. The injector assembly has one or more injector rings which have alternatively offset injector exhaust nozzles or slots to direct fluid toward the engine internal wall or the engine longitudinal axis respectively to improve fluid mixing for use of a shorter mixer section. The supply of fluid to the injector exhaust nozzles may be by fuel flow pumps and other elements connected to injector chambers in the injector ring or by an injector combustor external to the mixer. A movable plug is mounted on the center body fairing to provide adjustment for varying velocity and pressure conditions within the engine over the operating environment. This velocity/pressure regulation results in increased engine thrust and specific impulse performance. The diffuser has guide vanes to allow more rapid diffusion of the fluid flow.

Abstract translation: 喷射器冲压喷气发动机是具有入口，混合器，扩散器，燃烧器和出口喷嘴的普通增强冲压喷气元件的推进管道。 在混合器的上游端，喷射器组件安装在流体流动路径中以形成喷射器。 喷射器组件具有一个或多个喷射器环，其相应地偏置喷射器排气喷嘴或狭槽以分别朝向发动机内壁或发动机纵向轴线引导流体，以改善流体混合以使用较短的混合器部分。 向喷射器排气喷嘴供应流体可以通过燃料流量泵和连接到喷射器环中的喷射室的其它元件或由混合器外部的喷射器燃烧器供应。 可移动塞被安装在中心体整流罩上，以在操作环境下为发动机内的变化的速度和压力条件提供调节。 这种速度/压力调节导致发动机推力和比冲击性能的提高。 扩散器具有导向叶片以允许流体流动更快速地扩散。

公开(公告)号：US5205119A

公开(公告)日：1993-04-27

申请号：US715291

申请日：1991-06-14

Applicant: Melvin J. Bulman

Inventor： Melvin J. Bulman

IPC: F02K7/10 ,  F02K7/12 ,  F02K7/18 ,  F02K9/82

CPC classification number: F02K9/82 ,  F02K7/12 ,  F02K7/18

Abstract: An improved ejector ramjet includes a nozzle having first and second sides, preferably two-dimensional, the nozzle producing a primary fluid jet which causes secondary fluid to be entrained in the engine. The improvement includes means for linearly oscillating the primary jet in a propulsion duct downstream from the primary nozzle, allowing energy exchange between primary and secondary fluids in a substantially non-viscous fashion.

Abstract translation: 改进的喷射器冲击喷射包括具有第一和第二侧（优选二维）的喷嘴，喷嘴产生主流体射流，其使次流体被夹带在发动机中。 该改进包括用于在主喷嘴下游的推进通道中线性振荡主喷射的装置，从而允许主流体和次流体之间以基本上不粘的方式进行能量交换。

公开(公告)号：US3921985A

公开(公告)日：1975-11-25

申请号：US43087874

申请日：1974-01-04

Applicant: FIMML HANS

Inventor： FIMML HANS

IPC: F04D21/00 ,  F01D11/00 ,  F02K1/82 ,  F02K7/12 ,  F02K99/00 ,  F04F5/16 ,  F04F5/42 ,  F15D1/02 ,  F16J15/00

CPC classification number: F01D11/00 ,  F02K1/82 ,  F02K7/12 ,  F15D1/02 ,  Y02T50/67 ,  Y10S277/919 ,  Y10S277/93

Abstract: A flow of hot gases, e.g. in a mixing tube of a jet engine or in a cylinder of an internal-combustion engine, is kept out of contact with a confining surface by an electron-emissive coating on that surface held at a negative potential, the work function of the coating being lowered by the heat of the gases and/or by other heating means. The system can be used to minimize frictional resistance between the gas and a tube wall, or to block gas leakage between a cylinder and its piston.

Abstract translation: 热气流，例如 在喷气发动机的混合管或内燃机的气缸中，通过在负电位的表面上的电子发射涂层与限制表面保持接触，涂层的功函数为 由气体的热量和/或其他加热装置降低。 该系统可用于最小化气体和管壁之间的摩擦阻力，或阻止气缸与其活塞之间的气体泄漏。

公开(公告)号：US3861141A

公开(公告)日：1975-01-21

申请号：US40074973

申请日：1973-09-26

Applicant: BROWN ENGINEERING COMPANY INC

Inventor： NEUFFER BRUCE H

IPC: F02K7/12 ,  F02K9/02

CPC classification number: F02K7/12 ,  Y02T50/671

Abstract: A momentum compression ramjet engine employing energy from a high velocity stream of gaseous fuel injected into the open inlet of the engine to accelerate and compress the air by momentum exchange. Velocity energy is converted to pressure energy in a diffuser before the air-fuel mixture enters the combustion chamber where the fuel burns to raise the temperature before the gas is expanded through a jet nozzle. Maximum thrust-to-engine weight ratio and performance characteristics are obtained by the configuration of the air-fuel mixing and compressing chamber of the engine, and novel means utilizing heat of combustion may be employed to maintain pressure in the fuel system.

Abstract translation: 一种动量压缩冲压式喷气发动机，其将来自高速气态燃料流的能量喷射到发动机的开放入口中，以通过动量交换来加速和压缩空气。 在空气燃料混合物进入燃烧室的燃烧室之前，速度能量转化为扩散器中的压力能量，在该燃烧室中燃料燃烧以在通过喷嘴喷射气体之前升高温度。 通过发动机的空气 - 燃料混合和压缩室的构造获得最大推力重量比和性能特征，并且可以采用利用燃烧热的新颖方式来维持燃料系统中的压力。