KR20030033528A - Eccentric connecting rod and crank system - Google Patents

Abstract

PURPOSE: An eccentric connecting rod and a crank device are provided to increase an output of an engine without changing the structure of the engine by lengthening a crank arm when piston force is transferred to the crank device. CONSTITUTION: A connecting rod(1) has an L-shaped structure. A hole and a bearing are formed at an upper end of the connecting rod(1). A lower portion of the connecting rod(1) is bent and offset from the center of an upper vertical shank(1-2) by a predetermined distance(e). A lower end(1-3) of the connecting rod(1) is formed with a hole and a bearing. A piston and a pin are connected to the upper end(1-1) of the connecting rod(1) and a crank pin is connected to the lower end(1-3) of the connecting rod(1). The center of the upper vertical shank(1-2) of the connecting rod(1) is offset from a rotational center of a crank.

Description

Eccentric connecting rod and crank system

The present invention through the connecting rod for the linear movement of the piston like the internal combustion engine

It relates to a technique of transmitting to the crank to obtain a rotational force, the conventional technique

The linear movement of the piston is transferred to the crank pin through the connecting rod to the crank

When transmitting, the direction of the force transmitted to the connecting rod is

It is intended to be delivered straight to the rank pin. And the crank and the connecting rod

Connected with the crank pin to make a constant rotational movement around the crank axis

It is a crank mechanism.

The torque output to the crankshaft is the movement force of the piston

Expressed as the product of the force transmitted to the crank pin and the length of the crank arm,

It will be proportional to the magnitude of the force and the length of the crank arm. Increasing torque

In order to increase the explosive power of the engine,

You can also increase the length of your crank's arm. But these rooms

The law increases the engine's size and increases fuel consumption, thus increasing the efficiency of the engine.

The increase is difficult to expect.

The present invention is to solve the above problems, fuel consumption and engine

To increase engine power without significantly altering the structure,

Crank arm when transmitting the force of the piston due to the explosive force of the fuel to the crank

Crank mechanism with connector rod to increase length

To provide.

1: Explanatory drawing of crank mechanism of this invention (piston top dead center position)

2nd illustration: Explanatory drawing of the crank mechanism of the present invention (engine power stroke)

3 is an explanatory diagram of the present invention crank mechanism (piston bottom dead center position)

4: Explanatory drawing of the crank mechanism of the present invention (compression stroke of the engine)

5: Diagram of the crank mechanism of the present invention (engine power stroke)

Figure 6: Explanatory drawing of a conventional crank mechanism (power stroke of the engine)

7: Invented connecting rod

Figure 8: Perspective of Figure 7

Figure 9: Illustration of a conventional connecting rod

* Short description of the symbol

1. Connecting rod} 1-1. Small end {Small end}

1-2. Shank 1-3. Big end

1-4. Cap 1-5. Assembly screw

2. Piston {Piston} 3. Cylinder {Cylinder}

4. Crank arm 5. Crank pin

6. Crank shaft 7. Conventional connecting rod example

A. Piston pin center B. Crank pin center

C. Crank Rotational Center

e. Eccentricity r. Crank arm length

F. Rotational force by piston T. Crankshaft rotational force

In the present invention, as shown in FIG. 1 and FIG. 7, the structure of the connecting rod is " L "

The lower end of the connecting rod (1) (1-1) has a hole and a bare shape.

Ring, the lower part of the connecting rod (1) and the center of the upper vertical shank (1-2)

Eccentrically bent at a distance (e), the end of the large hole (1-3) and the hole and

It constitutes a bearing, and the small side (1-1) of the upper part is connected to the piston (2) with a pin

Lower large part (1-3) is connected to the crank pin (5), connecting to the piston (2)

The center of the upper vertical part shank 1-2 of the rod 1 is at the center of rotation c of the crank.

It consists of a crank mechanism with an eccentric distance.

In addition, as shown in FIG. 7, the connecting rod 1 of the present invention has a large side 1-3.

Assembled with connecting rod caps (1-4) that divide obliquely with connecting toe center

It is grouped.

The effect of the present invention is illustrated graphically, as shown in FIG. 2 and FIG.

The force (F) transmitted by the connecting rod (1) is determined by the crank arm length (r) and the connecting rod (1).

The eccentric distance (e) is multiplied by the sum of the distances (L) to generate the rotational force (T).

All. In the conventional crank mechanism, as shown in FIG. 6, the rotational force is connected to the force (F).

It is expressed as the product of the rod length arm length r. Therefore, comparing the rotational force of the present invention

The crank mechanism is eccentric and the torque can be obtained as much as the distance (e).

In an engine the efficiency of the crank mechanism can be increased.

And the upper center of the connecting rod and the center of rotation of the crankshaft are eccentric

The connecting rod is used to transfer the force of the piston to the connecting rod as in a conventional engine.

Can be transmitted directly along the crank shank to prevent dispersion of forces.

There is also an effect.

In addition, the connecting rod structure as shown in FIG. 7 is an inclined split structure.

It is easy to assemble from the bottom when assembling with the crank pin, and the connecting rod

Since the force transmitted from the upper part does not act directly on the divided cutting plane,

A protective effect is also expected.

Claims (1)

The connecting rod (1) has a structure of "L" shape, and the upper end of the connecting rod (1) The silver side 1-1 constitutes a hole and a bearing, and the lower portion of the connecting rod 1 The end of the shank (1-2) is bent and eccentric with the center of the shank. The large part (1-3) constitutes a hole and a bearing, and the small part (1-1) of the upper part The pin with the stone (2) and the lower part (1-3) with the crank pin (5), The center of the upper vertical part shank 1-2 of the connecting rod 1 connected to the piston 2 Eccentric Kerr, characterized in that it has an eccentric distance from the center of rotation (c) of the crank Necting Rod and Crank Mechanism