JP3047457U - Connecting rod with eccentric metal bearing for reducing friction of internal combustion engine - Google Patents

Abstract

(57) [abstract] (with correction) [Problem] To reduce the friction between the sliding surface of the piston and the cylinder of the internal combustion engine to increase the fuel consumption rate, increase the service life of the internal combustion engine, and save economically. Clean the environment. A metal bearing having an eccentric hole is used as a bearing used for a sliding portion between a piston and a connecting pin connecting a connecting rod of an internal combustion engine. In the connection portion between the piston and the connecting rod, the center position of the hole in the connecting portion of the connecting rod is closer to the crankshaft than the center of the hole in the connecting portion of the piston.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention reduces the energy loss caused by the friction of the sliding part between the cylinder and the piston of the internal combustion engine, and increases the efficiency of the internal combustion engine.

[0002]

[Prior art]

 In a conventional internal combustion engine, a metal bearing having a simple cylindrical hole is used at a connecting portion between a piston and a connecting rod, and is connected by a connecting pin. For this purpose, the connecting rod is only capable of pendulum movement with respect to the piston. Since the connecting pin cannot perform subtle lateral movement, the piston moves to the cylinder sliding surface due to the combined movement of the piston and the connecting rod, and the engine oil does not circulate evenly on the piston and cylinder sliding surface. Therefore, there is a disadvantage that the vertical movement of the piston is not smooth and energy loss is large.

[0003]

[Problems to be solved by the invention]

 Under such circumstances, the purpose of this proposal is to reduce the energy loss on the sliding surface between the piston and cylinder in an internal combustion engine, improve the fuel consumption rate, and further improve the service life and clean the environment.

[0004]

[Means for Solving the Problems]

 Use a metal bearing with eccentric holes in the bearing used for the sliding part of the piston and the connecting pin connecting the connecting rod of the internal combustion engine. For the connecting part between the piston and the connecting rod, the center position of the hole of the connecting part of the connecting rod is closer to the crankshaft than the center of the hole of the connecting part of the piston. In more detail, when a machined metal bearing is passed through the hole in the connection part of the piston, it should rotate smoothly. When the connection and pin are passed through the hole of the metal bearing, pass smoothly. Make a groove to install a snap ring on the piston so that the metal bearing does not come off the piston. In the eccentric processing of the metal bearing, the diameter of the hole is about 65 to 70% with respect to the outer circumference of the metal bearing, and the degree of eccentricity is the ratio of the thick part 3 to the thin part 1, 3: 1. Each can be changed according to conditions. When the diameter of the connecting pin is small, use a material that can withstand sufficient strength. When using the existing connecting rod, correct the dimension of the connecting pin near the crankshaft by correcting the connecting hole of the piston with a bush. Processing is based on JIS standards.

[0005]

[Action]

 Here's how to use it. Remodel or replace the connection part between the piston and the connecting rod and the metal bearing of the conventional internal combustion engine with the eccentric metal bearing and connection part of the present invention.

[0006]

[Application example]

 A small internal combustion engine with a displacement of 50 cc is easier to manufacture. An internal combustion engine with a small displacement, which is frequently used, is also advantageous in terms of popularization.

[0007]

[Effect of the invention]

 Physical effect In an internal combustion engine, the vertical movement of a piston is converted into rotational movement via a crankshaft. At this time, the sliding surface of the piston and cylinder shifts due to the change in operation, engine oil does not evenly circulate on the sliding surface of the cylinder and piston, friction also increases, and this may cause damage to the sliding surface. You. In a connecting rod that uses a metal bearing with eccentric hole processing, the hole is cut near the crankshaft, so that the eccentric metal swings slightly depending on the frictional resistance of the sliding surface between the cylinder and piston, It always acts in the direction of reducing the friction between the piston and the cylinder, preventing an increase in friction due to offset, and circulating the engine oil evenly in the cylinder. It also improves fuel consumption. Mental effects Environmental issues are expected to become increasingly important in the coming society. Now that we rely on fossil fuels for most of our energy, we can reduce our consumption of fossil fuels at all, reduce carbon monoxide and other harmful substances, improve our environment, and improve our air quality and improve our spiritual and healthy living. I can send.

[Brief description of the drawings]

FIG. 1 is an overall view of a connecting rod of the present invention.

FIG. 2 is a sectional view of the connecting rod of the present invention.

[Explanation of symbols]

 1 Eccentric metal bearing

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[Procedure amendment]

[Submission date] October 16, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (1)

[Utility model registration claims] A cylindrical metal bearing having an eccentric hole is used for a sliding portion between a connecting pin connecting a piston and a connecting rod of an internal combustion engine.