CN113530668A

CN113530668A - Circumferential air passage engine

Info

Publication number: CN113530668A
Application number: CN202110950658.9A
Authority: CN
Inventors: 蒙毓江
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-10-22

Abstract

The invention discloses an engine, and belongs to the technical field of machinery. In the invention, high-pressure gas expands along the working air passage to do work, and pushes the fixed valve to move, so that the related part is driven to rotate, and power is output, therefore, the invention is called as a circumferential air passage engine. The working process is as follows: jet → ignition → work (simultaneous exhaust).

Description

Circumferential air passage engine

Technical Field

The invention belongs to the field of machinery, and particularly relates to a circumferential air passage engine.

Background

Technical bottleneck of traditional (with cylinder, piston and connecting rod) engine

The compression ratio of the power stroke is limited. In the power stroke and the compression stroke of a conventional engine, the compression ratio is equal. The compression ratio of the compression stroke cannot be made too large, limited by the ignition point of the fuel gas, thus limiting the compression ratio of the power stroke and also limiting the efficiency of the engine.

And secondly, the technology of the traditional engine in the aspects of air injection and ignition is relatively mature, and the invention is realized on the basis of the technology.

Disclosure of Invention

Principle of the invention

The invention-circumferential air passage engine (hereinafter referred to as 'the invention') has no connecting rod and crankshaft, the high-pressure gas pushes the fixed valve to drive the inner shaft (or the outer shell) to rotate when expanding along the circumferential working air passage between the fixed valve and the movable valve so as to output power, therefore, the invention is referred to as 'circumferential air passage engine'.

One duty cycle of the present invention is: jet → ignition → work (simultaneous exhaust).

Drawings

FIG. 1 is a schematic view of the fixed valve in the first embodiment as it rotates through the intake port and spark plug. Wherein: [1] is a shell; [2] is an exhaust hole; [3] is a movable valve; [4] is an air inlet; [5] is a spark plug; [6] is a low pressure region of the working air passage; [7] is the high pressure region of the working air passage; [8] is a fixed valve (fixed on the inner shaft); [9] is the inner shaft.

Figure 2 is a schematic representation of the fixed valve in the nail version rotated to near the discharge orifice.

Fig. 3 is a schematic view of the first embodiment with the stationary valve rotated directly below the movable valve.

Fig. 4 is a top view of the housing in the nail scheme. And the distribution situation of the exhaust hole, the movable valve, the air inlet hole and the spark plug corresponding to each working air passage in the axial direction is schematically shown.

Fig. 5 is a schematic diagram of the distribution of the working air passages and the fixed valves in the axial direction in the A scheme.

Fig. 6 is a schematic diagram of the fixed valves of the working air passages in the first scheme, wherein the fixed valves of the working air passages are distributed on the shaft in an angle mode, and ABCDEF is the fixed valve of the working air passage ABCDEF.

FIG. 7 is a schematic view of the timing valve in the second embodiment as it rotates through the intake port and the spark plug. Wherein: [1] is a housing; [2] is an exhaust hole; [3] is a movable valve; [4] is an air inlet; [5] is a spark plug; [6] is a low pressure region of the working air passage; [7] is the high pressure region of the working air passage; [8] is a fixed valve (fixed on the shell); [9] is the inner shaft.

FIG. 8 is a schematic view of the timing valve rotated to the vicinity of the exhaust hole in the second embodiment.

FIG. 9 is a schematic diagram of the case B in which the stationary valve is rotated to a position directly above the movable valve.

Figure 10 is a top view of the inner shaft in scenario b. The exhaust hole, the movable valve, the air inlet hole and the spark plug which correspond to each working air passage are distributed in the axial direction.

Fig. 11 is a schematic diagram of the distribution of the fixed valves of the working air passages on the outer shell according to the angle in the second scheme, wherein ABCDEF is the fixed valve of the working air passage ABCDEF respectively.

Fig. 12 is a schematic diagram of the distribution of the working air passages and the fixed valves in the B scheme in the axial direction.

Fig. 13 is a schematic view of the control wheel and its accessories for opening and closing the movable valve in the case of the option a and b. The control wheel is provided with a groove along the circumference, and a section of the groove is a concave part. Wherein: [10] is an oil pipe; [11] is a control oil cylinder; [12] is hydraulic oil; [13] is a control piston; [14] is a control wheel of the movable valve; [15] is a groove on the control wheel. In this figure, the upper right portion of the recessed portion of the groove is turned to be directly below the control piston when the movable valve is about to open.

FIG. 14 is a cross-sectional schematic view of a side view of a large piston and a control wheel of the movable valve.

FIG. 15 is a schematic view of the movable valve and its accessories, shown in the closed position. Wherein: [10] is an oil pipe, connected to the oil pipe in fig. 13; [12] is hydraulic oil; [16] an oil cylinder which is a movable valve; [3] is a movable valve.

Figure 16 is a schematic view of the lower right portion of the groove turned directly below the control piston. The movable valve is in an open state at this time.

FIG. 17 is a schematic view of the movable valve and its accessories, with the movable valve in an open state.

Figure 18 is a schematic view of the lower left portion of the groove turning directly below the control piston. The movable valve is in an open state at this time.

Figure 19 is a schematic view of the upper left portion of the groove turning directly below the control piston. The movable valve is in a closed state at this time.

Fig. 20 is a schematic diagram of the distribution of large pistons on the control wheel for each working airway.

Construction and operation of the invention

The present invention may adopt a scheme a (as shown in fig. 1 to 6) in which the outer shell is fixed and the inner shaft is rotated, or a scheme b (as shown in fig. 7 to 12) in which the outer shell is rotated and the inner shaft is fixed. The invention is composed of A, B, C, D, E, F and other working air passages, and the number of the working air passages can be increased or decreased according to actual needs. The fixed valves on the working air passages are distributed in a star shape, and the plurality of working air passages are ignited in turn to realize stable output of power.

Working process of first and first scheme

The working process of one working air passage is as follows, and the working process of other air passages is the same.

(1) As shown in figure 1, when the fixed valve rotates through the air inlet hole and the spark plug, the movable valve is completely closed, the air injection system injects fuel gas into the working air passage through the air inlet hole, the ignition plug is ignited, and the fixed valve is pushed by the gas to rotate the inner shaft by acting.

(2) When the fixed valve rotates to the vicinity of the exhaust hole, as shown in fig. 2, the end of the power stroke is reached, most of the exhaust gas generated in the last power stroke is exhausted through the exhaust hole, and the movable valve is ready to be opened to allow the fixed valve to pass through.

(3) As shown in fig. 3, when the fixed valve is rotated to just below the movable valve, the movable valve is fully opened, ready to enter the next operating cycle of injecting, igniting, and doing work. When the movable valve is turned to the position shown in fig. 1, the next working cycle is started.

Second, scheme B construction and working process

(1) As shown in figure 7, when the fixed valve rotates through the air inlet hole and the spark plug, the movable valve is completely closed, the air injection system injects fuel gas into the working air passage through the air inlet hole, the ignition plug is ignited immediately, and the fixed valve is pushed by the gas to rotate by acting.

(2) As shown in fig. 8, when the fixed valve is rotated to the vicinity of the exhaust hole, the end of the power stroke is reached, most of the exhaust gas generated in the previous power stroke is exhausted through the exhaust hole, and the movable valve is ready to be opened to allow the fixed valve to pass through.

(3) As shown in fig. 9, when the fixed valve is rotated to just above the movable valve, the movable valve is fully opened, ready for the next duty cycle of injection, ignition and work. When the movable valve is turned to the position shown in fig. 7, the next working cycle is started.

Control method of movable valve in the present invention

As shown in fig. 13, the movable valve control wheel is fixed on the rotating shaft of the above first scheme or fixed on the housing of the second scheme, and rotates clockwise. The oil pipes in the figures 13 and 15 are communicated, and a large oil cylinder and a small oil cylinder are respectively arranged at two ends of the oil pipes. The big piston in the big oil cylinder is provided with a hook. The end of the small piston is connected with a movable valve. The oil pipe and the large and small oil cylinders are filled with hydraulic oil. The small movement of the large piston can drive the movable valve to move for a large distance, so that the movable valve can be opened or closed.

When the movable valve control wheel rotates from the position shown in fig. 13 to the position shown in fig. 16, the groove pulls the large piston to move downwards, and the movable valve is driven to move by hydraulic oil, so that the action of opening the movable valve is completed.

When the moving valve control wheel is rotated from the position of fig. 16 to the position of fig. 18, the large piston remains in the position, which keeps the moving valve open and allows the fixed valve to pass through the moving valve.

When the movable valve control wheel rotates from the position of fig. 18 to the position of fig. 19, the groove pulls the large piston to move upwards, and simultaneously drives the movable valve to move downwards, so that the action of closing the movable valve is completed.

The large pistons of all the working air passages share one groove, and the large pistons are distributed in a star shape and respectively control the movable valves of the ABCDEF air passages.

Advantages of the invention

1. Breaking through the limitation of the compression ratio of the power stroke

In the invention, the gas power stroke is not limited by factors such as the ignition point of fuel gas, and the compression ratio can be made very large, so that the energy of the gas can be fully utilized, and the efficiency of the engine can be improved.

2. Simple structure and convenient maintenance

The invention adopts a modular design method, the air injection system, the ignition system and the control system of the movable valve are independently designed and manufactured, the structure is simple, and the maintenance is convenient.

Claims

1. A circumferential air passage engine is characterized in that a working air passage is arranged on the circumference and occupies most part of the circumference, a fixed valve and a movable valve are arranged between a shell and a shaft, the fixed valve is fixed on an inner shaft, the movable valve is arranged on the shell, or the fixed valve is fixed on the shell, the movable valve is arranged on the inner shaft, high-pressure gas is sealed between the movable valve and the fixed valve to expand, and the fixed valve is pushed to do circular motion along the air passage on the circumference to drive a rotating shaft to rotate or the shell to rotate, so that power is output.

2. The method of claim 1, wherein the fixed valves are distributed in a star shape at a certain angle to facilitate alternate operation of different air passages.

3. The movable valve control method according to claim 1, wherein distances from different portions of the groove to a center of the circle are different, the movable valves are opened or closed by large pistons, the large pistons are distributed in a star shape at a certain angle, each large piston opens or closes a movable valve of a corresponding working air passage by a small piston, and the large pistons and the small pistons are linked through oil pipes.