JPS582450A - Combustion gas generator for fluid pressure engine - Google Patents

Abstract

PURPOSE:To reduce gas leak from an external combustion engine by integrally incorporating a combustion gas generator with a rotary valve. CONSTITUTION:A solid explosive powder 4 in an innner cylinder 1 is ignited and burnt by an ignition unit 2 upon engine starting for generating gas which is transferred into the cylinders of a multi-cylinder engine, sequentially, through the jet port of a rotary valve 6 secured to and integrally rotated with the inner cylinder 1, thereby the engine is driven. Liquid fuel is fed from a pipe 15 after the completion of combustion of the solid explosive powder 4 for sustaining the combustion. The inner cylinder 1 has at its end part a gear and is, therefore, integrally rotated with a cooling cylinder 10 which is rotated from the outside, so that the rotary valve 6 is synchroneously rotated with the engine. Particularly in the engine, the inner cylinder 1 and the rotary valve 6 are secured together so that they are integrally rotated, thereby no gas is appreciated from their connection.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion gas generating device for a fluid pressure engine, which has a combustor external to the engine and uses combustion gas generated by the combustor to propel an underwater vehicle or the like.

Conventionally, an engine is equipped with a combustor externally, and the combustion gas produced here is introduced into the cylinder to produce output. The external combustor (fluid pressure engine) is explained using Figure 1. As shown in the right half of Figure 1, the high-temperature, high-pressure combustion gas generated in the combustion chamber mainly flows into the combustion chamber from the red stamp a direction.
Through the sleeve 01 connected rotary valve 03. as shown in detail in the figure. A passage 05 made of graphite or the like is formed in the valve seat 04 and cylinder head 02a, respectively. '06,
07 and is guided to cylinder 08. At this time, the passages 05 and 06 are intermittently communicated with each other.

The gas that has completed its work is mainly transferred from the cylinder 08 to the cylinder head 02 as shown in the left half of the figure.
and a passage 07. which is opened in the valve seat 04. It passes through '06, passes through the 9-turn valve 0, connects intermittently with the opened passage 010, and is discharged to the outside from the exhaust pipe 011. The exhaust pipe 011 is a combination of the valve stem of the rotary valve 03 and the drive shaft 012.

The valve seat 04 functions as a seal with the radial thrust bearing of the rotary valve 03, performs relative sliding, and is shrink-fitted or press-fitted into the cylinder head 2a. It is made of graphite or the like in order to expose the back of the bearing in the hot combustion gas.

The combustion chamber 020 that supplies the combustion gas is a second
As shown in the figure, a metal container 021 is equipped with a solid explosive 0222, an ignition device 023, and a fuel injection device 24.The starting method for burning fuel is to ignite the solid explosive 022 with the ignition device 023, and While the type gunpowder 022 is burning, liquid fuel is injected from the injection device 024 to ignite the fuel, and thereafter the fuel is continued to be injected to generate combustion gas.

This combustion gas is as shown in Figure 6.

It is supplied from the combustion chamber 20 to the rotary valve 06 through an end face seal 025 that is firmly shrink-fitted to the end of the sleeve 01. The end seal 025 is firmly shrink-fitted to the sleeve 01 and set with a set screw 026, as described above, so that it does not rotate at the same time as the one-turn valve 06. The sleeve 01 is pushed by the spring 027 and the pressure of the combustion gas, and the end seal 025 is always in good contact with the rotary valve 03 to prevent combustion gas from leaking to the outside. This end face seal 025 is similar to the valve seat 04 described above, and the ignition device 02 shown in FIG.
As shown in the figure, a small amount of gunpowder 032 and a scoop 033 buried in the gunpowder 032 are placed in a metal container 031. A stainless steel sheath tube 034 and two wires 035 passing through it
and a presser foot 0-6 for fixing these,
The pusher metal 036 is fixed with a nut 037.

However, even with this structure and the prevention of leakage of combustion gas, the connection between the rotary valve 06 and the end face seal 025 is between two operating parts and a fixed part.

It was impossible to prevent gas from leaking to the outside from the sealing surface between the end face sole 025 and the rotary valve 03.

In order to completely prevent this combustion gas from leaking, end seal 025. Although it would be possible to form the combustion chamber 020 and the rotary valve 03 into an integral structure, this was not possible with conventional devices.

The present invention aims to solve the above-mentioned problems, and has a rotary valve fixed to one end of the combustion chamber of a combustion gas generator to form an integral structure, so that the rotary valve rotates on the combustion gas generator together with the rotary valve. A fluid pressure engine that prevents high-temperature, high-pressure combustion gas from leaking to the outside, and has an ignition device located at the center of rotation of the combustion chamber, and the ignition device is connected to an external fixed device by sliding. The purpose of the present invention is to provide a combustion gas generation device for

Therefore, the combustion gas generation device for a fluid pressure engine of the present invention can be used in a fluid pressure engine in which a combustor is provided outside the engine, and the combustion gas produced there is introduced into the cylinder to produce output. A combustion chamber is provided around the combustion chamber, and a rotary valve is fixed to one end of the lower metal fitting, and an ignition device is fixed to the rotation axis of the inner cylinder on the other end. A cooling cylinder that rotatably holds the combustion chamber and allows cooling water to flow between it and the outer surface of the combustion chamber, and an outer cylinder that is installed around the cooling cylinder and holds the combustion chamber. In order to supply squib current to the ignition device from the outside, a disk terminal disposed at the outer end of the ignition device and a disk end terminal fixed to the outer cylinder end opposite thereto are slidably connected. It is characterized by the fact that

Below, a combustion gas generator for a fluid pressure engine as an embodiment of the present invention will be explained with reference to the drawings. FIG. FIG. 1 is a longitudinal cross-sectional view of the distal end of the device, where 1 is the center of rotation of the distal end.

An ignition device 2, which will be described later, is hermetically fitted, and a lower metal fitting 5 is screwed into the end of the rotation center line to form a combustion chamber.

- A two-turn valve 6 is fixed to the rear end of the lower hardware 5 with a bolt 7, and the ignition device 2. The injection device 6 and the combustion chamber are integrally constructed with the rotary valve 6.

And 8. A high temperature seal packing 8 is inserted between the rear end surface of the lower metal fitting 15 and the front end surface of the rotary valve 6 to prevent leakage of high temperature and high pressure gas generated in the combustion chamber to the outside.

The inner cylinder 4 constituting the combustion chamber is held via a bearing 9 in a cooling cylinder 10 provided around the combustion chamber. The injector and combustion chamber are rotatable within the cooling cylinder 10 together with the rotary valve 6. Inner cylinder of combustion chamber 4. A cooling water passage 11 for cooling the combustion chamber and the fluid pressure engine is provided between the outer surface of the lower hardware 5 and the inner surface of the cooling cylinder, and a cooling water passage 11 is provided between the outer surface of the lower hardware 5 and the inner surface of the cooling cylinder. It is made to flow to the outer periphery of the pressure engine. At the tip of the twisted cooling cylinder 10.

A fuel passage 12 is defined between the cooling water passage 11 and the shoulder of the inner cylinder 4 via a watertight section.

Further, the outer periphery of the cooling cylinder 10 is covered with an outer cylinder 13, and the outer cylinder 13 is fixed to an auxiliary equipment mounting plate 104, and holds the cooling cylinder 10 fixedly.

A nipple 14.15 that communicates with an external cooling water pipe (not shown) and a fuel pipe is fixed to the outer surface of the outer cylinder 16. Cooling water and fuel pass through passages bored in the outer cylinder 13 and cooling cylinder 10, and are led to a cooling water passage 11 and a fuel passage 12, respectively. The ignition device 2 is airtightly fitted into the center of rotation at the tip of the inner cylinder 1, and includes a squib 21. A presser foot 241 containing a stainless steel sheath tube 22 and two insulated wires 23, and an ignition powder 2.
The ignition tube 26 is fixed to the presser foot 24 with a nut 27.

The strands 26 connected to the squib 21 are as follows.

The sheath tube 22 and the inside of the presser foot 24 are guided toward the distal end side and connected to a disc terminal 28 disposed on the end surface of the presser foot 24 . The tip of the presser foot 4 protrudes from the opening 36 made at the tip of the outer tube 13 to the outside of the ignition tube 24 and the J★ tube 13, but the tip of the presser foot 4 protrudes outside the inner tube 1 into which the ignition tube 24 is fitted. These parts, including the tip, are prevented from coming into contact with the outer cylinder 13. A fixed metal fitting 29 is fixed to the distal end surface of the outer cylinder 16 with bolts, and a sheath tube 62 containing a wire 31 is fixed inside the fixed metal fitting 29 via a presser foot 30.

A spring 66 is built in between the flange provided on the rear end surface of the presser foot 30 and the fixed hardware 29.

In addition, the element 1IJ31 guided backward through the sheath pipe 62
is connected to a disc terminal 34 disposed on the rear end surface of the presser foot 30, facing the disc terminal 28. The rotating disc terminal 28 and the stationary disc terminal 34 slide to maintain electrical connection.

Note that 65 is a nut for avoiding contact failure due to wear of the terminals 28 and 34 on both sides, or for preventing excessive pressing by the spring 63.

Next, the operation will be explained. When a starting signal for the fluid pressure engine is issued, a current from an external power source is transmitted to the disc terminal 34 through the wire 31.

Although the disc terminal 34 is separated from the disc terminal 28, since it is pressed by the spring 63, they are electrically connected, so that the disc terminal 28. Squib 2 via strand 23
The current transmitted to 1 ignites the squib 21 and the ignition powder 25
ignite it.

Then, the solid gunpowder 4 is ignited by the ignition powder 25 and starts generating combustion gas. Then, while the solid gunpowder 4 is burning, fuel is fed from the outside via the nipple 15° fuel passage 12, and the fuel is fed into the combustion chamber from the injection device 6 installed on the tip wall of the inner cylinder, thereby generating combustion gas. can be obtained continuously.

A combustion gas generation device for a fluid pressure engine according to the present invention.

As mentioned above, the rotary valve is fixed to one end of the lower metal fitting that forms the combustion chamber, and is rotatably held within the cooling cylinder, while the other end of the inner cylinder that forms the combustion chamber is mounted. Once combustion has started in the combustion chamber, high-temperature, high-pressure gas is continuously supplied to the rotary valve, but since the combustion chamber and rotary valve are sealed with a fixed seal gasket, the gas does not leak to the outside. The structure in which the ignition device rotates together with the combustion chamber has the advantage that even if the combustion chamber rotates, the squib ignition wire can be reliably ignited without breaking.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a fluid pressure engine driven by combustion gas generated by the combustion gas generator for a fluid pressure engine of the present invention, and FIG.
Figures 6 and 4 are diagrams showing a conventional combustion gas generator for a fluid pressure engine, and Figure 2 is a schematic sectional view showing the entire device.
The figure is a cross-sectional view showing details of the connection between the combustion chamber and the rotary valve.
The figure is a cross-sectional view showing details of the ignition system. 5 and 6 are cross-sectional views of the combustion gas generating device for a fluid pressure engine according to the present invention. FIG. 5 is a cross-sectional view showing the entire device, and FIG. It is a diagram. 1... Inner cylinder, 2... Ignition device, 3... Injection device,
4... Solid gunpowder, 5... Lower hardware, 6... Rotary valve, 7... Bolt, 8... Seal packing, 9...
bearing. 10... Cooling cylinder, 11... Cooling water passage, 12...
Fuel passage, 13... Outer cylinder, 14. ,l 15...Nipple, 21...Squib, 22,32...Sheath'! , 23. Filter 1 wire, 24, 3 []... Presser foot, 2
5...Ignition powder, 26...Ignition tube, 27.35...
Nut, 28. 34...Disk terminal, 29...Fixing hardware, 33...Spring, 36...Opening hole.

Claims (1)

[Scope of Claims] A fluid pressure engine that is equipped with a combustor outside the engine and introduces combustion gas produced therein into a cylinder to produce output, which includes an inner cylinder and a lower metal fitting fitted thereto. A combustion chamber consisting of a rotary valve fixed to one end of the lower metal fitting and an ignition device fixed to the rotational axis of the inner cylinder at the other end, and a combustion chamber provided around the combustion chamber to rotatably hold the combustion chamber. At the same time, it consists of a cooling cylinder that allows cooling water to flow in between the outer surface of the combustion chamber, a cooling cylinder installed around the cooling cylinder, and an outer cylinder that holds the combustion chamber. In order to supply squib current to the ignition device from the outside, a disk terminal disposed at the outer end of the ignition device and an opposing disk terminal fixed to the outer cylinder end are slidably connected. A combustion gas generator β for opening a gas pressure machine, characterized by the following.