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Inner cavity cam rotor internal combustion engine power system

A technology for internal combustion engines and cam rotors, applied to internal combustion piston engines, combustion engines, machines/engines, etc., can solve the problems of limited expandability of triangular rotor internal combustion engines, difficulty in improving rotor shaft torque, and difficulty in improving combustion utilization, etc. , to achieve the effect of short motion transmission link, simple structure and low manufacturing cost

Active Publication Date: 2017-06-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still key problems such as high processing requirements for core parts, too sensitive to wear, difficult adjustment of compression ratio, low thermal efficiency, etc., and it is still difficult to improve the combustion utilization rate
At the same time, similar to the piston internal combustion engine, the scalability of the triangular rotor internal combustion engine structure is also limited
In addition, when the expansion force generated by the fuel is converted into the power of the output shaft, there are natural defects in the transmission of force
Although the expansion force can push the rotor to rotate, it is difficult to increase the torque of the resultant force on the rotor shaft, and the proportion of internal friction is also too high

Method used

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  • Inner cavity cam rotor internal combustion engine power system
  • Inner cavity cam rotor internal combustion engine power system
  • Inner cavity cam rotor internal combustion engine power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] See attached Figure 4 , assuming that the central component is a fixed cylinder, the cam rotor in the inner cavity is a disc cam chamber with a near rest area and a far rest area, and both the near and far rest angles are slightly less than 180°. The number of sliders is 2, arranged symmetrically. After assembly, the sealing relationship is the same as before and will not be repeated. There are two air inlets and two air outlets, which are located inside the central component and are located on both sides of the slider. They are all indicated by block valves, and the one with a small circle on the handle is the air intake valve. A pair of intake and exhaust ports are one group, along the direction of rotation of the cam in the inner chamber indicated by the arrow, the intake ports in the same group are at the front, and the exhaust ports are not limited. There are two ignition devices.

[0047] The two sliders divide the central component and the inner chamber of th...

Embodiment 2

[0057] and then pass Figure 5 and 6 Demonstrate a slightly more complex situation.

[0058] The center member is fixed, and the inner chamber cam member having the inner chamber cam profile is used as the rotor. There are three sliders on the central member, which divide the outer surface evenly into three sections. The cam profile of the inner cavity has a near-rest zone and a far-rest zone. It is close to the corresponding central angle between the two sliders, and the space between the two sliders is the working chamber or the combustion chamber. Figure 5 and 6 The corresponding valve state and the working process in the chamber are shown in different positions of the inner chamber cam member rotor. Same as the previous example, there are three working chambers, each chamber has two possible working processes at the beginning, so there are 8 different combined working modes. Only two are shown here, and the rest will not be discussed one by one.

[0059] First mode:...

Embodiment 3

[0069] Figure 7 Show variability further. As long as the circumferential space is large enough, the number of sliders and the number of inner cam protrusions (such as the near rest area) can be increased arbitrarily. With the addition of a slider escapement, the size of the working space to complete each working cycle can also be varied.

[0070] The parameter relationships selected below are only for the convenience and clarity of description, and are not limiting. In the figure, it is assumed that two near-rest sections of the inner cavity cam rotor are evenly distributed, and the arc length of the near-rest sections is slightly larger than the arc length corresponding to the two adjacent sliders, so that the two sliders are in a retracted state at the same time. The number of sliders is taken as 6 and evenly distributed, indicated by numbers. Each slider is controlled by the slider escapement, where "out of control" means that the slider has been released by the escapem...

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Abstract

The invention belongs to the field of internal combustion engines, and relates to an inner cavity cam rotor internal combustion engine power system. In the system, a cam mechanism is composed of inner cavity cams and a plurality of sliding block followers installed on central members in a cam cavity in the system, and a plurality of sealed working cavities distributed circumferentially are composed of the inner cavity cams and end members; the cam mechanism and the sealed working cavities change in volumes with the relative rotation of the inner cavity cams and the central members, and are fit to valves to finish four procedures, namely air intake, compression, acting and exhaust of Otto cycle therein; chemical energy generated from gas combustion is directly converted into mechanical energy output in the fixed-axis rotation form of the inner cavity cams or the central members. In the invention, a rotor fixed axis is driven to rotate and output power by high-pressure gas directly; the structure is simple, and the parameter adjustable range is wide. The flexible control is easy to achieve under the control of an additional sliding block escapement device, so that the positive and negative rotation is realized. Compared with piston internal combustion engine and triangular rotor internal combustion engine power systems, the inner cavity cam rotor internal combustion engine power system has many outstanding advantages.

Description

technical field [0001] The invention belongs to the field of internal combustion engines, and relates to a power system of an internal combustion engine with an inner cavity cam rotor. Background technique [0002] The piston internal combustion engine is the earliest internal combustion engine that came out. Its characteristic is that the piston makes a reciprocating linear motion in the cylinder, and the output of the crankshaft rotary motion is realized through the crank slider mechanism. Within two weeks of crankshaft rotation, the cylinder completes a complete intake, compression, work, and exhaust four working processes, that is, the Otto cycle. It is generally believed that the piston internal combustion engine has the advantages of high thermal efficiency, compact structure, strong maneuverability, and easy operation and maintenance. It is even believed that the power device of the piston internal combustion engine, especially the mechanical structure, has reached t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B53/00F02B55/02F02B55/08
CPCF02B53/00F02B55/02F02B55/08Y02T10/12
Inventor 孙守林卞永宁王琳张光临洪鹏飞杨扬
Owner DALIAN UNIV OF TECH
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