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A sliding block combined with a 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 scalability of triangular rotor internal combustion engines, difficulty in improving rotor shaft torque, and high processing requirements for core parts. To achieve the effect of short motion transmission link, simple structure and large parameter range

Active Publication Date: 2020-02-18
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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  • A sliding block combined with a cam rotor internal combustion engine power system
  • A sliding block combined with a cam rotor internal combustion engine power system
  • A sliding block combined with a cam rotor internal combustion engine power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] See attached Figure 4 , assuming that the rotor housing is fixed, the cam rotor is a disc cam with a far rest zone and a near rest zone, and the far and near 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 respectively, which are located on the rotor chamber and are located on both sides of the slider. They are all indicated by switch symbols, and the ones with small circles are air inlets. A pair of intake and exhaust ports is one group, along the cam rotation direction indicated by the arrow, the air intake port is in front of the same group, and the exhaust port is not limited. There are two ignition devices.

[0048] The two sliders divide the rotor and the rotor chamber into two left and right working chambers. Since the volumes of the two chambers change simultaneously when the rotor ...

Embodiment 2

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

[0058] The rotor housing is fixed, and the cam rotor with cam profile is used as the output member. There are three sliders on the rotor housing to divide the rotor housing evenly into three sections. The cam rotor has a far rest area and a near rest area respectively. The corresponding central angles are similar, and the space between the two sliders is the working chamber or combustion chamber. Figure 5 with 6 It shows the corresponding valve state and working process in the chamber at different positions of the 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:

[0060] Figure 5 It starts from the combination state of the three processes of starting air i...

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 cam protrusions (such as the far 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 the far resting sections of the cam rotor are two evenly distributed, and the arc length of the resting sections is slightly larger than the corresponding arc lengths of the two adjacent sliders, so that the two sliders are retracted 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 escapement, "controlled" means th...

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Abstract

The invention discloses a power system of an internal combustion engine with slide blocks combined with a cam roller, belongs to the field of internal combustion engines and relates to the power system of the internal combustion engine with slide blocks combined with the cam roller. In the power system, a cam mechanism is formed by means of the cam roller and a plurality of slide block driven members, and a plurality of peripherally distributed sealing work chambers are formed with a rotor cabin and an end portion member; these change in volume along with rotation of the cam roller and are matched with an air valve to finish four processes: air suction, compression, acting and exhausting of Otto cycle so as to directly convert chemical energy generated by gas combustion into mechanical energy of the roller in a form of rotation of a fixed shaft. High pressure gas directly pushes the fixed shaft of the rotor to rotate and outputs power, so that the power system is simple in structure and large in parameter adjustable range. Controlled by an additional slide block escaping, the rotor is easily flexibly controlled, and even can rotate forward and backward. Compared with a power system of a piston internal combustion engine and a power system of a triangular rotor internal combustion engine, the power system disclosed by the invention has many prominent advantages.

Description

technical field [0001] The invention belongs to the field of internal combustion engines, and relates to a power system of a sliding block and a cam rotor internal combustion engine. 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 the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B53/00F02B53/04F02B55/02F02B53/02
CPCF02B53/00F02B53/02F02B53/04F02B55/02Y02T10/12
Inventor 孙守林卞永宁杨扬王琳张光临洪鹏飞
Owner DALIAN UNIV OF TECH
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