JPH06346701A - Multi-piston phase-difference variable displacement type power generator - Google Patents

Abstract

PURPOSE: To provide a piston reciprocation power generator generating some power even in the upper and lower dead centers. CONSTITUTION: This power generator is constructed of a composite cylinder, in which two slave cylinders 120, 121 are arranged in a single master cylinder 100, and the slave cylinders 120, 121 are connected to each other in a cylinder head part of the master cylinder 100, while piston assemblies respectively constructed of pistons A, B, piston rods (a), (b), and cranks a1 , b1 exclusively are arranged in a common crank shaft 122. Each of the cranks a1 , b1 is constructed so as to hold a fixed phase angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reciprocating power generator having a cylinder and a pinton.

[0002]

2. Description of the Related Art A conventional piston reciprocating power generator (reciprocating engine) has one piston per cylinder, a piston rod, and a set of cranks, and the reciprocating motion of one piston is rotated through the set of cranks. It was converted into motion and one crankshaft was rotated.

[0003]

However, since there is only one piston, there are top dead center and bottom dead center where no power is generated, and the fluctuation of the driving force is large. In order to smooth this fluctuation of the driving force. I used a heavy flywheel.

It is an object of the present invention to provide a piston reciprocating power generator which does not have a top dead center and a bottom dead center where large fluctuations in driving force occur, and in which fluctuations in generated driving force are small.

[0005]

In order to solve the above-mentioned problems, a master cylinder 100 or 200 is provided with a plurality of slave cylinders 120, 121 or 220, 221 and is composed of a compound cylinder. , 12
1 or 220, 221 is the master cylinder 100 or 2
00, the cylinder head portion of each of them is in communication with each other, and the pistons A, B or M, N, the piston rods a, b or m, n and the cranks a ₁ , b ₁ or m ₁ , n, respectively, which are dedicated to each other
Crankshaft 12 with common piston assembly consisting of ₁
2 or 222 for each crank a ₁ , b
₁ or m ₁ and n ₁ are configured to maintain a constant phase angle.

As an example, the child cylinders 120, 121 or 220, 221 are two sets of cylinders and have a phase angle of 90.
It is held at °.

The cylinder head 105 has a suction valve 10
2, an exhaust valve 103 and an ignition device 101, which are configured to operate as an internal combustion engine, and an intake valve 202 and an exhaust valve 201 on a cylinder head 205.
And a high-pressure fluid generator is connected via a suction valve 201 to form a power generator.

[0008]

As described above, since there is a phase difference in the period in which each piston is pushed down and the driving force is generated, the total driving force generation period by each piston is long and the top dead center,
There is no period in which the driving force is not generated at the bottom dead center, and the unevenness of the driving force generation is small.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a power generating device as an internal combustion engine, and FIG. 2 is a sectional view of a power generating device supplied with a pressurized fluid.

First, the power generation device as the internal combustion engine of FIG. 1 will be described. Although FIG. 1 shows the case of two cylinders, the child cylinders 120 and 12 arranged in parallel.
Reference numeral 1 forms a master cylinder 100 which is communicated with a common cylinder head 105.

Each of the subsidiary cylinders 120 and 121 has pistons A and B, piston rods a and b, and cranks a ₁ and b _1, and these cranks a ₁ and b ₁ are attached to a common crankshaft 122. As far as this connection is concerned, this is the same as the conventional piston relationship, but the phase angle between the cranks a ₁ and b ₁ to which the piston rods a and b are connected is 90 °.

In addition, a cylinder head 105 of one master cylinder 100 has one or a set of intake valves 102,
An exhaust valve 103 and an ignition device 101 are provided and configured as an internal combustion engine.

Next, the 4-cycle operation of the above-mentioned internal combustion engine will be described. First, the volume of the master cylinder 100 is minimum (state 1) when the pistons A and B are at the position of 45 ° in the reverse direction at the crank angle from the upper end position (corresponding to the conventional top dead center), and conversely. The volume of the master cylinder 100 is maximum when the crank angle is 45 ° in the opposite direction from the lower end position (corresponding to conventional bottom dead center) (state 2
It is).

Since the volume of the master cylinder 100 is expanded during the transition from the state 1 to the state 2 by the rotation of the crankshaft 122, the intake valve 102 is opened during this period and the fuel mixed with air is vaporized by the carburetor or the like. Inhale.

After reaching the state 2 (maximum volume), the intake valve 102 is closed (the exhaust valve remains closed), and when the crankshaft 122 rotates, the volume is reduced and the mixed fuel is compressed. Is the maximum pressure.

At this point, the ignition device ignites the fuel (actually, the ignition is performed slightly before reaching the state 1 in consideration of the combustion speed of the fuel). By this ignition, the fuel in the cylinder burns to generate high temperature and high pressure, which pushes pistons A and B,
Transition to state 2. This period is the period of power generation.

Subsequently, the exhaust valve 103 is opened during the transition from the state 2 to the state 1 by the rotation of the crankshaft 122 to discharge the burned exhaust gas to complete one cycle.

During this period, the piston A has a crank angle of 45 ° to 225 ° during the power generation period, and the piston B has a crank angle of 315 ° to 135 ° during the power generation period.
From the highest point, the power generation period is −45 ° to 225 °.

As described above, since the pistons A and B differ in the time when they pass through the positions corresponding to the top dead center and the bottom dead center,
At the same time, the driving force does not become zero, and the fluctuation of the driving force is small.

Although the above-mentioned operation is performed in the case of 4 cycles, it can be diverted to the operation of 2 cycles as it is as in the conventional case.

FIG. 2 is a sectional view of a prime mover having a fluid pressure generating device such as a boiler or a compressor provided outside. In this case, the ignition device is unnecessary. In this figure, 200 is a master cylinder, 201 is an exhaust valve, 202 is an intake valve, 205 is a cylinder head, 220 and 221 are child cylinders, 222 is a crankshaft, M and N are pistons,
m and n are piston rods, and m ₁ and n ₁ are cranks.

Also in this prime mover, state 1 to state 2
The pressure fluid is supplied from the suction valve 202 during the transition to state 1 to generate the driving force, and the exhaust valve 201 is opened during the transition from state 2 to state 1 to exhaust the fluid after expansion to 1
The cycle is complete.

In the above embodiment, the number of child cylinders is two.
However, the present invention is not limited to this number, and it is needless to say that the present invention is applied to all the composite cylinder type power generation devices of the present invention.

[0024]

As described above, even if the power generating device of the present invention is of a reciprocating type, there is no top dead center or bottom dead center, the fluctuation of the generated power is small, and a smooth rotary motion is obtained. easy.

By selecting an external device such as a fuel supply device, an ignition device, or a pressure fluid supply device, it can be easily diverted to a power generation device using a pressurized fluid such as a two-cycle or four-cycle internal combustion engine or a steam engine. It is possible.

[Brief description of drawings]

FIG. 1 is a cross-sectional view and a schematic diagram of a power generation device as an internal combustion engine.

FIG. 2 is a cross-sectional view and a schematic view thereof as a power generation device supplied with a pressurized fluid.

[Explanation of symbols]

100 Master Cylinder 105 Cylinder Head 120 Child Cylinder 121 Child Cylinder 122 Crank Shaft A Piston a Piston Rod a ₁ Crank B Piston b Piston Rod b ₁ Crank 200 Master Cylinder 205 Cylinder Head 220 Child Cylinder 221 Child Cylinder 222 Crank Shaft M Piston m Piston Rod m ₁ Crank N Piston n Piston Rod n ₁ Crank

Claims (4)

[Claims] 1. A composite cylinder comprising a plurality of sub-cylinders provided in one master cylinder, the sub-cylinders being communicated with each other by a cylinder head portion of the master cylinder, and further, a piston, a piston rod and a dedicated piston respectively. A multi-piston phase difference variable displacement power generating device, wherein a piston assembly including cranks is provided on a common crank shaft, and each of the cranks is configured to maintain a constant phase angle. 2. The multi-piston phase difference variable displacement power generator according to claim 1, wherein the plurality of slave cylinders are two sets of cylinders, and the phase angle is held at 90 °. 3. The multi-piston phase difference variable displacement power generator according to claim 1, wherein the cylinder head is provided with an intake valve, an exhaust valve and an ignition device so as to operate as an internal combustion engine. . 4. The variable piston phase difference according to claim 1, wherein the cylinder head is provided with an intake valve and an exhaust valve, and a high pressure fluid generator is connected through the intake valve to form a power generator. Positive displacement power generator.