SK522012A3 - Rigid connection of two opposing pistons in one axis by double bridging. - Google Patents

Abstract

Fixed structural connection of the two opposing pistons to one axis by double bridging such that the axis of the coupled pistons intersects the crankshaft axis at right angles and the crankshaft rotates within the bridging. The double bridging that connects the opposing pistons bypasses the crankshaft from two sides, the crankshaft rotating inside the bridging. The invention relates to all two or more piston internal combustion engines, all two or more crankshaft machines and devices. Two fixed pairs of pistons on the axis are connected by a crankshaft through the connecting rods. Piston pairs work against each other to reduce the vibration of the engine in which they are located. The bridging can be performed in compression in the cylinders beyond the crankshaft axis. The length of the pistons can be shortened by almost half because two fixed-link pistons have high stability.

Description

Title of the invention

Fixed connection of two opposing pistons to one axis by double bridging.

Technical field

The invention relates to all two or more piston internal combustion engines, to all two or more piston engines and to crank-gear devices.

BACKGROUND OF THE INVENTION

Current engines, machines and equipment use a design where each piston has one connecting rod and each piston has its own separate axis in which it moves.

Such structures exhibit lateral uneven friction between the piston and the cylinder, and over time the cylinder is deformed into an elliptical shape and the sealing rings wear out. This is compensated by the length of the piston, which reaches approximately the size of the cylinder bore. Each piston generates vibrations by its movement independently of the other pistons and loads the crankshaft with these vibrations.

It is an object of the invention to suppress these undesirable effects, to reduce friction and vibration.

SUMMARY OF THE INVENTION

A rigid structural connection of two opposing pistons to one axis, by means of a double bridge, such that the axis of the connected pistons intersects the crankshaft axis at a right angle and the crankshaft rotates within the bridge.

The bypass bypasses the crankshaft on both sides, parallel to the axis of the connected pistons. The connecting rod is also located inside the bridge.

The rigid connection of the opposing pistons creates greater stability of the piston when moving in the cylinder, thereby reducing the uneven friction between the cylinder and the piston. The piston may be of a shorter length since adverse side forces act simultaneously on both pistons.

For each pair of rigidly connected pistons there is one connecting rod connecting the crankshaft and the piston bridging. This reduces the number of connecting rod bearings by half compared to the constructions used. The length of the crankshaft is smaller because the number of connecting rod bearings is smaller. There is also a smaller number of main crank bearings. For example, a four-cylinder engine is sufficient for three crank bearings, two less than it is used.

Shortening the crankshaft reduces the overall vibration. By reducing the number of bearings, less friction and less vibration, the service interval is extended and the transmission efficiency is increased.

Overview of drawings in drawings

Other modifications, advantages, and applications of the invention will also be apparent from the following description of the exemplary embodiment and the drawing. All the described and / or figuratively depicted properties are in themselves or in any combination an object of the invention, irrespective of their summary in the claims or their withdrawal.

The following is schematically shown:

Fig. 1. Schematic representation of a rigid connection of opposing pistons by double bridging, connecting rod bearing inside the bridging and connecting to crankshaft.

Fig. 2. Schematic representation of Figure 1, rotated 90 degrees, with crankshaft position at top dead center and pistons centered.

Fig. 3. Schematic representation of Figure 1 rotated 90 degrees, with the crankshaft position at the side dead center and the pistons in the extreme position. The piston is in the compression position.

Figure 4. Schematic representation of the crankshaft bearing in the bridge. The crankshaft is at the top dead center, the pistons in the center.

Fig. 5. Schematic representation of the system in a four-cylinder version.

DETAILED DESCRIPTION OF THE INVENTION

The currently used - for example - horizontal BOXER four-cylinder flat engine has stacked cylinders opposite each other, two on each side, but not on one axis. Each piston moving in the cylinder has its own separate axis of movement and a separate connecting rod. Thus four pistons, four connecting rods, five crank bearings.

Figure 5 shows a schematic design of a system in a BOXER four-cylinder flat engine, which allows the crankshaft 7 to be shortened and mounted in three crank bearings. The number of connecting rods is reduced from four used to two 6 and 6A.

Two fixed pairs of pistons, L and 2 on the A + IA and 2A axes on the AA axis, are coupled to the crankshaft 7 via the connecting rods 6 and 6A.The twin pistons work opposite each other, similar to the Boxer engine, reducing vibration of the entire engine .

The overall width of the engine increases only slightly, since the bridging 5 can extend beyond the axis of the crankshaft B in compression in cylinders 4 and 4A. Also, the bridging 5 can part of the cylinder 4 and 4A. The length of the pistons can be shortened by almost half, because the two pistons in a fixed connection have high stability.

The number of pairs of pistons can be increased, preferably in double. For example, an eight-cylinder engine will have a crankshaft half that of an eight-cylinder inline engine using this system.

Claims (5)

Patent claims Fixed connection of two opposing pistons (1) and (2) to one axis (A) by double bridging (5) in all two or more piston internal combustion engines, in all two or more piston engines and crank gear machines, characterized in that: that the two opposing pistons (1) and (2) are rigidly connected to one axis (A). Fixed connection of two opposing pistons (1) and (2) to one axis (A) by double bridging (5) according to claim 1, characterized in that the axis of the pistons (A) intersects the crankshaft axis (B) at right angles. Fixed connection of two opposing pistons (1) and (2) to one axis (A) by a double bridge (5) according to claims 1 and 2, characterized in that a double bridge (5) which connects the opposite pistons (1) and (2). 2) bypasses the crankshaft (7) from two sides, the crankshaft (7) being rotatably mounted within the bridge (5). Fixed connection of two opposing pistons (1) and (2) to one axis (A) by double bridging (5) according to claims 1 to 3, characterized in that the connecting rod (6) is mounted inside the double bridging (5) and It connects the bridge (5) and the crankshaft (7). Fixed connection of two opposing pistons (1) and (2) to one axis (A) by double bridging (5) according to claims 1 to 4, characterized in that the transmission of movement from the two opposing pistons (1) and (2) is via one connecting rod (6) on the crankshaft (7).