WO2011113306A1

WO2011113306A1 - Gas piston pulse engine

Info

Publication number: WO2011113306A1
Application number: PCT/CN2011/000414
Authority: WO
Inventors: 靳北彪
Original assignee: Jin Beibiao
Priority date: 2010-03-15
Filing date: 2011-03-15
Publication date: 2011-09-22

Abstract

A gas piston pulse engine includes a spraying pipe (1) in which at least one combustion chamber (2) is arranged. Inside the spraying pipe (1) and/or on the side wall of the spraying pipe (1), are provided at least one high-pressure fluid nozzle (3) which takes the spraying direction of the spraying pipe (1) as an overall spraying direction and/or at least one high-pressure fluid nozzle (3) which takes the direction opposite to the spraying direction as an overall spraying direction. The high-pressure fluid nozzle (3) is communicated with a high-pressure fluid source (4) through a high-pressure fluid spraying controlling valve (5). The engine has less motion parts and a high compression ratio, solving the problem of lubrication difficulty under existing combustion engine conditions, as well as the problems that a pure ramjet engine can not be started in a rest state and can not work under a low-speed working condition.

Description

Gas piston pulse engine

Technical field

This invention relates to the field of engines, and more particularly to a gas piston pulsed engine.

Background technique

In the design of internal combustion engines, in order to enable the mixture of fuel and air to reach the high temperatures and pressures required for subsequent combustion explosions, and also to increase the thermal efficiency of the internal combustion engine, the intake air must be compressed. There are three technical solutions in the design of existing internal combustion engines to achieve compression, that is, piston compression, turbine compression or stamping compression. However, whether it is compressing air using mechanical components such as pistons (such as piston internal combustion engines) or gas turbines (such as gas turbines, jet engines, etc.), or using high-speed motion of the internal combustion engine to punch air to compress air ( For example, ramjets, there are obvious drawbacks; the former two are not only complicated in structure, high in manufacturing cost, but also need to lubricate gas-pressing components such as pistons and turbines, which brings a series of problems and consumes the gas itself. The energy comes from the valuable mechanical work that is hard to obtain, which reduces the heat transfer efficiency of the engine. Although the latter solves the problems of the former two to a certain extent, it cannot work under low speed conditions and cannot be in static condition. Under the start; In addition, whether it is turbo gas or stamping gas in the low speed conditions, there is a problem of insufficient gas pressure. These have greatly restricted the improvement of the thermal efficiency of existing internal combustion engines, the reduction of manufacturing costs and the expansion of the field of use.

Therefore, there is an urgent need to invent an internal combustion type or a co-firing type engine having a novel compression mode. Utility model content

In order to solve the above problems, the technical solution proposed by the present invention is as follows:

A gas piston pulse engine comprising a nozzle, at least one combustion chamber being disposed in the nozzle; at least one of the nozzles in the nozzle and/or the side wall of the nozzle is provided with an injection direction of the nozzle Spraying a directed high pressure fluid nozzle, and/or providing at least one high pressure fluid nozzle in the opposite direction of the injection direction of the nozzle in the nozzle and/or the side wall of the nozzle, a high pressure fluid nozzle is connected to the high pressure fluid source via a high pressure fluid injection control valve;

Wherein the high-pressure fluid nozzle with the injection direction of the nozzle as the injection direction is set to be high in the forward direction a pressure fluid nozzle, the high pressure fluid injection control valve between the forward high pressure fluid nozzle and the high pressure fluid source is set to be a forward high pressure fluid injection control; the injection direction of the nozzle is opposite to the injection direction The high pressure fluid nozzle directed is configured as a reverse high pressure fluid nozzle, and the high pressure fluid injection control valve between the reverse high pressure fluid nozzle and the high pressure fluid source is set as a reverse high pressure fluid injection control valve.

The high pressure fluid nozzle is disposed inside a cavity of the nozzle outside the combustion chamber and/or on a side wall of the nozzle disposed outside the combustion chamber.

The nozzle is provided as a local pressurized injection tube having an expansion zone.

The high pressure fluid nozzle is configured as a venturi injection tube nozzle, and a high pressure gas inlet of the venturi injection tube nozzle is in communication with the high pressure fluid source.

The nozzle inlet end of the nozzle is provided with a port sealing shell, the port sealing shell sealing the inlet end of the nozzle, and at least one inlet passage is arranged on the port sealing shell, the inlet passage and the inlet passage The pressurized gas source is connected.

The nozzle inlet end of the nozzle is provided with a port sealing shell, the port sealing shell sealing the inlet end of the nozzle, and at least one inlet passage is arranged on the port sealing shell, the inlet passage and the inlet passage a fluid nozzle of the venturi jet pipe is connected; or a nozzle sealing shell of the nozzle of the nozzle is provided with a port sealing shell, the port sealing shell sealing the inlet end of the nozzle, and at least one of the port sealing shell is provided An intake passage, the intake passage is in communication with a fluid nozzle of the venturi injection pipe, and a high pressure control valve and a low pressure control valve are respectively disposed at a high pressure gas inlet and a low pressure gas inlet of the venturi injection pipe to control the high pressure control A valve and the low pressure control valve cause the venturi injection tube to intermittently eject fluid.

In the structure provided with the high pressure control valve and the low pressure control valve, the intake passage is divided into at least two groups, and the high pressure control valve and the low pressure control valve are controlled to make the intake air in different groups The passage alternately feeds in to increase the working pressure in the nozzle, or to achieve continuous stable operation of the nozzle while increasing the working pressure in the nozzle.

The port sealing shell is further provided with a common-type intake passage, the inlet passage is surrounded by the circumference of the conventional-type intake passage, and the conventional-type intake passage is operated in a continuous intake mode. .

At least two of the combustion chambers are disposed along the axial direction of the injection pipe, and a differential fuel injection and/or a differential ignition are performed for each of the combustion chambers. One of the combustion chamber and at least two of the reverse high pressure fluid nozzles are disposed in the nozzle to increase the pressure of the gas in the combustion chamber.

a gas turbine is disposed in front of the combustion chamber, and a power turbine is disposed behind the combustion chamber, and the compressor turbine and the power turbine are coaxially disposed;

Alternatively, a power turbine is disposed behind the combustion chamber, and the power turbine is coupled to the power take-off shaft. The gas piston pulse engine is placed on the rotor to form a gas piston pulsed rotor engine. a high pressure fluid outlet is disposed behind the combustion chamber, and the high pressure fluid outlet is in communication with the high pressure fluid nozzle or is connected to the high pressure fluid nozzle after being pressurized;

Or a high pressure fluid outlet port is disposed behind the combustion chamber, the high pressure fluid outlet port is in communication with a high pressure fluid inlet of the three-way injection pump, and a fluid outlet of the three-way injection pump is in communication with the high pressure fluid nozzle; or a high pressure fluid outlet is disposed behind the combustion chamber, and the high pressure fluid outlet is in communication with the high pressure fluid inlet of the three-way injection pump via the pressure device, the fluid outlet of the three-way injection pump is The high pressure fluid nozzle is connected.

Providing a cooling spray hole on a side wall of the nozzle, the cooling spray hole communicating with the inner cavity of the nozzle and the high-pressure fluid source, and realizing high-pressure fluid in the high-pressure fluid source through the cooling spray hole The side walls of the nozzle are cooled and isolation between the flame within the combustion chamber and the side walls of the nozzle is achieved.

It is well known that a high-speed moving fluid can form an interface between itself and the gas in front of it, and the interface is rapidly propelled toward the forward gas by the high-speed fluid, which is like a high-speed moving gas piston, so that it can be The gas in front acts as a compression; especially when the fluid moving at high speed and the gas in front of it are inside the same pipe, the effect of this high-speed fluid interface gas pressure phenomenon will be more obvious. The fundamental of a gas piston is the inertia formed by fluid motion. For example, rockets, if the rocket's motion is explained from the rocket vent, is due to the reaction force obtained by the high-speed jet of fluid to propel the rocket. However, if the rocket's motion is analyzed from the peripheral interface of the gas ejected from the rocket, it can be understood as a gas piston with an infinite stroke.

Therefore, it is not difficult to imagine that when a high-speed fluid is injected into a nozzle filled with a gas, such as a mixture of air or fuel-air, the high-speed fluid is inevitably capable of compressing the air or fuel-air mixture in the nozzle to cause pressure. The temperature rises sharply to reach the conditions required for the combustion and explosion of the internal combustion engine. In the present invention, a high-pressure fluid nozzle sprayed to the combustion chamber can be simultaneously disposed in the nozzles on both sides of the combustion chamber, thereby forming two high-speed mutually approaching interfaces on both sides of the combustion chamber, as if two high-speed approaches are close to each other. The piston, so that the air or the fuel-air mixture in the combustion chamber is rapidly compressed to reach the high temperature and high pressure required for the combustion explosion of the internal combustion engine; or the spray direction can be set only in the nozzle on the combustion chamber side. a high-pressure fluid nozzle of the combustion chamber, and a baffle or a seal is arranged in the nozzle on the other side of the combustion chamber or the shape of the nozzle before and after the combustion chamber and the combustion chamber is adjusted, and the high-pressure fluid is used to advance at a high speed toward the combustion chamber. The interface is like a piston that is propelled in the direction of the combustion chamber at a high speed to rapidly compress the air in front or the mixture of fuel and air. It can also make the air or fuel-air mixture in the combustion chamber reach the high temperature required for the combustion explosion of the internal combustion engine. high pressure.

In the present invention, the setting of the reverse high-pressure fluid nozzle is equivalent to forming a fluid wall after the combustion chamber, so that the high-speed air flow coming from the intake passage is decelerated and pressurized, that is, it is rapidly compressed, and the pressure of the air is rapidly increased. This increases the compression effect, allowing the air or fuel-air mixture in the engine to reach the temperatures and pressures required for combustion. When combustion begins in the combustion chamber, the reverse high pressure fluid nozzle closes and the fluid wall disappears without affecting the directional movement of the gas.

In the present invention, when two high-pressure fluid nozzles facing the combustion chamber are simultaneously injected at a high speed in the direction of the combustion chamber, two gas pistons which move toward each other are formed at both ends of the combustion chamber, thereby allowing the combustion chamber to enter the combustion chamber. The air in the vicinity and the air in the vicinity are rapidly compressed, and the pressure is rapidly increased, thereby exerting the effect of gas compression, so that the mechanical compression parts such as the piston or the gas turbine can be replaced, so that the structure of the engine is simple, and the press can be replaced or reduced to some extent. The engine must rely on high-speed stamping to compress the air, so that the ramjet engine can achieve the temperature and pressure required for combustion even at a lower speed or even at a stationary state. The ramjet engine works properly. When the combustion begins in the combustion chamber, the reverse high pressure fluid nozzle is closed, and the gas piston after the combustion chamber disappears without affecting the directional movement of the gas.

In the present invention, when a multi-stage nozzle is provided, a pressure difference of one stage can be formed before and after the nozzles of the respective stages, and the pressure differences are superimposed on each other, so that the pressure in the spray direction of the nozzle can be gradually increased, so that the first stage is A higher pressure after stacking will be obtained so that the compressed air or fuel-air mixture therein can achieve higher pressures and temperatures. Especially when multiple nozzles are sprayed in the same direction, this effect will be more obvious - that is, a first-order, same-direction differential pressure is formed before and after each nozzle. The pressure in the nozzle spray direction can be increased step by step, so that a higher pressure will be obtained in the first stage.

The high-pressure fluid source in the present invention may be pre-compressed air or other compressed gas, high-pressure liquid, liquefied gas, high-pressure fuel and fuel mixture, or may be generated by the engine's own waste heat. The high pressure steam or the engine's own exhaust or work fluid.

The fluid pressure in the so-called high pressure fluid source of the present invention is greater than the pressure required to satisfy the normal operation of the gas piston pulse engine of the present invention, and the fuel mixture in the combustion chamber begins to burn and blast.

The so-called difference in the present invention means that there is a time servo between the two actions.

The gas piston pulse engine of the invention can spray the working medium at a high speed through the exhaust nozzle on the nozzle, and use the recoil force obtained by the nozzle to push the gas piston pulse engine forward; or by setting the power turbine and the power output shaft Connected to output power, the gas piston pulse engine can also be placed on the rotating body to output rotational power to the outside.

The gas piston pulse engine of the present invention can achieve power adjustment by controlling the amount of fuel injection, that is, the amount of intake air. The gas piston pulse engine of the present invention can also work in a plurality of combinations to form an operation mode similar to that of a multi-cylinder engine, and can control the operation of the engine by intermittently controlling the operation of each of the gas pistons in the combined engine or intermittently to achieve high efficiency and low efficiency. The load response is achieved on the premise of emissions.

The so-called pressurized gas source of the present invention includes, but is not limited to, an air outlet of a conventional stamping chamber, an air outlet of a jet stamping chamber, an air outlet of a venturi jet type stamping chamber, a fluid nozzle of a venturi nozzle, or the like. Pressure gas source. For the so-called jet stamping chamber, please refer to the invention patents submitted by the National Patent Office for CN2010101241 91 . 4 and CN2010101241 92. 9. The so-called venturi-type jet blasting chamber means that the jet nozzle of the jet-type blasting chamber is a venturi nozzle.

The so-called reverse direction of the injection direction and/or the injection direction of the nozzle is the injection direction, which includes the case where the injection direction of the nozzle and/or the reverse direction of the injection direction is completely accurate, and also includes There is a certain degree of off-angle but generally still the case where the injection direction of the nozzle and/or the opposite direction of the injection direction is the injection direction.

The so-called localized pressurized injection tube with the expansion zone of the present invention includes, but is not limited to, a stamping cavity of a ramjet engine or the like which is capable of decelerating and compressing the high-speed airflow therein to increase the temperature and pressurization. The front side of the combustion chamber and the rear of the combustion chamber in the present invention refer to the flow direction of the engine discharged according to the high-temperature and high-pressure working medium generated after the combustion and explosion of the fuel in the combustion chamber, and the side opposite to the flow direction of the working medium on both sides of the combustion chamber is the front. The same side as the working fluid flows to the rear.

The so-called gas piston pulse engine of the present invention may be an internal combustion engine or a co-combustion machine; a so-called co-combustion machine refers to a product of combustion as a working fluid, and a heated fluid in the engine also serves as a working fluid; so-called heating Fluid refers to the fluid in the engine cooling system and the fluid that cools the exhaust of the engine. (Refer to the patent number submitted by the National Patent Office for further reference.)

CN20101 01 1 8601 . 4 invention patent).

The so-called gas piston pulse engine of the present invention can be used in an aeroengine, a jet engine, a gas turbine, a ramjet, and the like.

The so-called gas piston pulse engine of the present invention may be disposed on a rotor to form a rotor type engine having a rotor shaft as a power output shaft.

The beneficial effects of the present invention are as follows:

1. The invention has fewer moving parts and high compression ratio, and solves the problem of lubrication of a large number of moving parts in the case of a large number of moving parts in the existing internal combustion engine, and also solves the problem that the simple ramjet engine cannot start from a static state and cannot be at a low speed. The problem of working under working conditions.

2. The invention has good explosion-proof performance, good environmental protection and high thermal efficiency. DRAWINGS

1 is a schematic structural view of Embodiment 1 of the present invention;

2 is a schematic structural view of Embodiment 2 of the present invention;

3 is a schematic structural view of Embodiment 3 of the present invention;

Figure 4 is a schematic structural view of Embodiment 4 of the present invention;

Figure 5 is a schematic view showing the structure of Embodiment 5 of the present invention;

Figure 6 is a schematic view showing the structure of Embodiment 6 of the present invention;

7, FIG. 8 and FIG. 9 are schematic structural views of Embodiment 7 of the present invention;

Figure 10 is a schematic view showing the structure of Embodiment 8 of the present invention;

Figure 11 is a schematic structural view of Embodiment 9 of the present invention; Figure 12 is a schematic structural view of Embodiment 10 of the present invention;

Figure 13 is a schematic structural view of Embodiment 11 of the present invention;

Figure 14 is a schematic structural view of Embodiment 12 of the present invention;

Figure 15 is a schematic view showing the structure of Embodiment 13 of the present invention;

Figure 16 is a schematic view showing the structure of Embodiment 14 of the present invention. detailed description

Example 1

The gas piston pulse engine shown in FIG. 1 includes a nozzle 1 in which a combustion chamber 2 is disposed; and at least one high-pressure fluid nozzle 3 in which the injection direction of the nozzle 1 is directed in the nozzle 1 is disposed in the nozzle 1 And at least one high-pressure fluid nozzle 3 directed in the opposite direction of the injection direction of the nozzle 1, the high-pressure fluid nozzle 3 being in communication with the high-pressure fluid source 4 via the high-pressure fluid injection control valve 5; wherein, the injection direction of the nozzle 1 is The injection-directed high-pressure fluid nozzle 3 is set as a forward high-pressure fluid nozzle 301, and the high-pressure fluid injection control valve 5 between the forward high-pressure fluid nozzle 301 and the high-pressure fluid source 4 is set as a forward high-pressure fluid injection control valve 501; The reverse direction of the injection direction of 1 is that the injection high pressure fluid nozzle 3 is set as the reverse high pressure fluid nozzle 302, and the high pressure fluid injection control valve 5 between the reverse high pressure fluid nozzle 302 and the high pressure fluid source 4 is set as the reverse high pressure fluid injection control valve. 502. Specifically, a forward high-pressure fluid nozzle 301 having an injection direction of the nozzle 1 as an injection direction is disposed in the nozzle 1, and a forward high-pressure fluid nozzle 301 is disposed inside the cavity of the nozzle 1 on both sides of the combustion chamber 2, The forward high pressure fluid nozzle 301 is in communication with the high pressure fluid source 4 via the forward high pressure fluid injection control valve 501; and the reverse high pressure fluid nozzle 302 is provided in the nozzle 1 in the opposite direction of the injection direction of the nozzle 1 as the injection direction, reverse The high pressure fluid nozzles 302 are disposed inside the cavity of the nozzle 1 on both sides of the combustion chamber 2. The reverse high pressure fluid nozzle 302 is in communication with the high pressure fluid source 4 via a reverse high pressure fluid injection control valve 502.

Example 2

The gas piston pulse engine shown in FIG. 2 differs from the first embodiment in that: a reverse high pressure fluid nozzle 302 is provided in the nozzle 1 in the opposite direction of the injection direction of the nozzle 1 as the injection direction, and the reverse high pressure fluid is provided. Nozzle 302 is in communication with high pressure fluid source 4 via reverse high pressure fluid injection control valve 502. The high pressure fluid nozzles 3 are disposed on the side walls of the nozzle 1 on both sides of the combustion chamber 2. The nozzle 1 is set to have an expansion zone The local booster injection tube 100.

Example 3

The gas piston pulse engine shown in FIG. 3 differs from Embodiment 1 in that both the forward high pressure fluid nozzle 301 and the reverse high pressure fluid nozzle 302 are both venturi injection nozzles 30 and venturi injection nozzles 30. The high pressure gas inlet is in communication with the high pressure fluid source 4.

Example 4

The gas piston pulse engine shown in FIG. 4 differs from the first embodiment in that: the nozzle inlet end 101 of the nozzle 1 is provided with a port sealing shell 102, and the port sealing shell 102 seals the nozzle inlet end 101. The port seal housing 102 is provided with at least one intake passage 103, and the intake passage 103 is in communication with the pressurized gas source 6.

Example 5

The gas piston pulse engine shown in FIG. 5 differs from the first embodiment in that: the nozzle inlet end 101 of the nozzle 1 is provided with a port sealing shell 102, and the port sealing shell 102 seals the nozzle inlet end 101. The port sealing shell 102 is provided with at least one inlet passage 103, and the inlet passage 103 communicates with the fluid nozzle of the venturi injection pipe 50, and a high pressure control valve 503 is respectively disposed at the high pressure gas inlet and the low pressure gas inlet of the venturi injection pipe 50. And a low pressure control valve 504, a control high pressure control valve 503 and a low pressure control valve 504 cause the venturi injection tube 50 to intermittently eject fluid.

Example 6

The gas piston pulse engine shown in FIG. 6 differs from the embodiment 5 in that: there are two intake passages 103, which are divided into two groups A and B, and the high pressure control valve 503 and the low pressure control valve 504 are controlled to different groups. The intake passage 103 is alternately introduced to increase the working pressure in the nozzle 1, or to achieve continuous stable operation of the nozzle 1 while increasing the working pressure in the nozzle 1.

Example 7

The gas piston pulse engine shown in FIG. 7, FIG. 8 and FIG. 9 differs from the embodiment 6 in that the port seal housing 102 is further provided with a normal-type intake passage 1 1 , and the intake passage 103 is in the conventional formula. The circumference of the intake passage 11 is surrounded by one week, and the conventional intake passage 1 1 operates in a continuous intake mode.

Example 8

The gas piston pulse engine shown in Fig. 10 differs from the embodiment 1 in that: Three combustion chambers 2 are provided in the axial direction of the tube 1, and a differential fuel injection or a differential ignition is performed for each of the combustion chambers 2. Example 9

The gas piston engine shown in FIG. 11 differs from the first embodiment in that a combustion chamber 2 and at least two reverse high pressure fluid nozzles 302 are provided in the nozzle 1 to increase the gas in the combustion chamber 2. pressure.

Example 10

The gas piston pulse engine shown in FIG. 12 differs from the first embodiment in that a gas turbine 7 is provided in front of the combustion chamber 2, and a power turbine 8 is disposed behind the combustion chamber 2, and the gas turbine 7 and the power turbine 8 are the same. Axis settings.

Example 1 1

The gas piston pulse engine shown in Fig. 13 differs from the first embodiment in that a power turbine 8 is disposed behind the combustion chamber 2, and the power turbine 8 is coupled to the power output shaft 801.

Example 12

The gas piston pulse engine shown in Fig. 14 differs from the first embodiment in that a gas piston pulse engine is provided on the rotor 9 to constitute a gas piston pulse rotor engine.

Example 13

The gas piston pulse engine shown in FIG. 15 differs from the first embodiment in that a high-pressure fluid outlet port 330 is disposed behind the combustion chamber 2, and the high-pressure fluid outlet port 330 passes through the supercharging device 332 and the The high pressure fluid inlet 33101 of the three-way injection pump 331 is in communication, and the fluid outlet 33103 of the three-way injection pump 331 is in communication with the high pressure fluid nozzle 3.

Example 14

The gas piston pulse engine shown in FIG. 16 is different from the first embodiment in that a cooling nozzle hole 12 is provided on the side wall of the nozzle 1, and the cooling nozzle hole 12 communicates with the inner cavity of the nozzle 1 and a high-pressure fluid source. 4. The high pressure fluid in the high pressure fluid source 4 is cooled through the cooling nozzles 12 to the side wall of the nozzle 1 to achieve isolation between the flame in the combustion chamber 2 and the side walls of the nozzle 1.

Claims

Rights request

A gas piston pulse engine comprising a nozzle (1), characterized in that at least one combustion chamber (2) is provided in the nozzle (1); in the nozzle (1) and/or The side wall of the nozzle (1) is provided with at least one high-pressure fluid nozzle (3) directed at the injection direction of the nozzle (1), and/or within the nozzle (1) and/or Or a side wall of the nozzle (1) is provided with at least one high-pressure fluid nozzle (3) directed in the opposite direction of the injection direction of the nozzle (1), and the high-pressure fluid nozzle (3) is subjected to a high pressure a fluid injection control valve (5) is in communication with the high pressure fluid source (4);

Wherein, the high-pressure fluid nozzle (3) whose injection direction is the injection direction of the nozzle (1) is set as a forward high-pressure fluid nozzle (301), and the forward high-pressure fluid nozzle (301) and the high pressure The high pressure fluid injection control valve (5) between the fluid sources (4) is set as a forward high pressure fluid injection control valve (501); the opposite direction of the injection direction of the nozzle (1) is the direction of the injection direction The high pressure fluid nozzle (3) is set as a reverse high pressure fluid nozzle (302), and the high pressure fluid injection control valve (5) between the reverse high pressure fluid nozzle (302) and the high pressure fluid source (4) is set to A reverse high pressure fluid injection control valve (502).

2. A gas piston pulse engine according to claim 1, wherein: said high pressure fluid nozzle (3) is disposed inside a cavity of said nozzle (1) outside said combustion chamber (2) and / or disposed on the side wall of the nozzle (1) outside the combustion chamber (2).

The gas piston pulse engine according to claim 1, characterized in that the nozzle (1) is provided as a partial booster injection pipe (100) having an expansion zone.

4. A gas piston pulse engine according to claim 1, wherein said high pressure fluid nozzle (3) is a venturi injection nozzle (30), said venturi injection nozzle (30) A high pressure gas inlet is in communication with the high pressure fluid source (4).

The gas piston pulse engine according to claim 1, characterized in that: the nozzle inlet end (101) of the nozzle (1) is provided with a port sealing shell (102), and the port sealing shell (102) Sealing the nozzle inlet end (101), at least one inlet passage (103) is disposed on the port sealing shell (102), and the inlet passage (103) is connected to the pressurized gas source (6) .

The gas piston pulse engine according to claim 1, characterized in that: the nozzle inlet end (101) of the nozzle (1) is provided with a port sealing shell (102), and the port sealing shell (102) Will The nozzle inlet end (101) is sealed, and at least one inlet passage (103) is provided on the port sealing casing (102), and the inlet passage (103) and the venturi injection pipe (50) are fluid. The nozzle inlet is connected; or the nozzle inlet end (101) of the nozzle (1) is provided with a port sealing shell (102), and the port sealing shell (102) seals the nozzle inlet end (101), The port sealing shell (102) is provided with at least one inlet passage (103), the inlet passage (103) is in communication with a fluid orifice of the venturi injection pipe (50), and the venturi injection pipe (50) A high pressure control valve (503) and a low pressure control valve (504) are respectively disposed at the high pressure gas inlet and the low pressure gas inlet.

7. The gas piston pulse engine according to claim 6, wherein: in the structure in which the high pressure control valve (503) and the low pressure control valve (504) are provided, the intake passage (103) At least divided into two groups.

8. The gas piston pulse engine according to claim 7, wherein: the port sealing case (102) is further provided with a normal-type intake passage (11), and the intake passage (103) is located at The circumference of the conventional air intake passage (11) is surrounded by one circumference.

A gas piston pulse engine according to claim 1, characterized in that at least two of said combustion chambers (2) are arranged along the axial direction of said injection pipe (1).

10. A gas piston pulse engine according to claim 1, characterized in that said combustion chamber (2) and at least two said reverse high pressure fluid nozzles (302) are provided in said nozzle (1).

The gas piston pulse engine according to any one of claims 1 to 10, characterized in that a gas turbine (7) is arranged in front of the combustion chamber (2), behind the combustion chamber (2) Providing a power turbine (8), the compressor turbine (7) and the power turbine (8) being coaxially disposed;

Alternatively, a power turbine (8) is disposed behind the combustion chamber (2), and the power turbine (8) is coupled to the power output shaft (801).

A gas piston pulse engine according to any one of claims 1 to 10, characterized in that the gas piston pulse engine is arranged on the rotor (9) to constitute a gas piston pulse rotor engine.

The gas piston pulse engine according to any one of claims 1 to 10, characterized in that: a high-pressure fluid outlet (330) is disposed behind the combustion chamber (2), and the high-pressure fluid outlet (330) Connecting with the high pressure fluid nozzle (3) or after passing through the boosting device (332) The fluid nozzle (3) is connected;

Or a high pressure fluid outlet (330) is disposed behind the combustion chamber (2), and the high pressure fluid outlet (330) is in communication with a high pressure fluid inlet (33101) of the three-way injection pump (331), the three-way radiation a fluid outlet (33103) of the injection pump (331) is in communication with the high pressure fluid nozzle (3);

Or a high pressure fluid outlet (330) is disposed behind the combustion chamber (2), and the high pressure fluid outlet (330) passes through the pressure device (332) and the high pressure of the three-way injection pump (331). The fluid inlet (33101) is in communication, and the fluid outlet (33103) of the three-way injection pump (331) is in communication with the high pressure fluid nozzle (3).

The gas piston pulse engine according to any one of claims 1 to 10, characterized in that a cooling nozzle hole (12) is provided on a side wall of the nozzle (1), and the cooling nozzle hole (12) Connecting the inner cavity of the nozzle (1) and the high pressure fluid source (4) to achieve high pressure fluid in the high pressure fluid source (4) through the cooling orifice (12) to the nozzle ( The side wall of 1) cools and achieves isolation between the flame in the combustion chamber (2) and the side walls of the nozzle (1).