JPS63198719A - Injection device for internal combustion engine - Google Patents

Abstract

PURPOSE:To cause a turbulent flow in surrounding combustion flames and improve combustion efficiency by moving hydraulically an injection plate vertically within an injection device cylinder and injecting fuel, air and the like within an internal combustion engine cylinder toward a combustion chamber and the like. CONSTITUTION:Pressure oil is forcibly fed from the groove 18 of a hole 17 formed on a crank shaft 6 to the cylinder 20 of a piston pin 8 via a hole 31 on a connecting rod 7, a pipe 32 and a hole 33, when a piston 5 is before or after lower dead center. And a rod 9 monolithic with an injection plate 10 is thereby pushed upward via a push rod 11. Concurrently therewith, fuel or air within the cylinder 3 of an internal combustion engine is forcibly fed to the inside of an injection device cylinder 30 via a hole 22 formed on the injection plate 10. On the other hand, when the piston 5 has reached a level before or after upper dead center, the push rod 11 is shifted with a spring 29 and fuel or air is supplied to the internal combustion engine cylinder 3 and a combustion chamber 4 via the hole 22 of the injection plate 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an injection device in an internal combustion engine such as a spark ignition engine or a diesel engine, a cylinder head combustion chamber or a piston, and the injection device includes a cylinder and an injection plate. In addition to providing a certain gap to prevent friction, the injection device and injection plate have holes that also serve as pressure feed and injection, and the piston has an oil cylinder and a pusher that moves up and down within the cylinder. When the internal combustion engine piston reaches around the bottom dead center including the bottom dead center (this varies depending on the timing setting for starting to push the injection plate of the injection device toward the top dead center of the internal combustion engine), the pressure pumped by the hydraulic pump increases. From the oil pressure holes and pressure grooves provided on the crankshaft to the oil pressure holes and pressure pipes provided around the crankshaft of the connecting slot, and the oil pressure holes provided around the piston pins of the connecting lot. When the shaft rotates (due to rotation), oil is pumped into the piston pin cylinder, pushing up the injection plate rod, and the injection plate moves toward the top dead center of the internal combustion engine.During the transition, the oil is injected into the injector cylinder. The fuel gas, air, etc. in the combustion chamber of the internal combustion engine cylinder is force-fed into the injection device cylinder through the pressure-feed injection hole provided in the plate, and when the injection plate finishes rising, the rotating crankshaft When the oil pumping groove and the oil pumping hole provided around the crankshaft of the connecting slot are completely filled, the oil stops being pumped and is trapped in the piston pin cylinder. When the oil discharge hole provided around the piston pin of the piston pin cylinder and the connecting rod reaches the point (varies depending on the injection start timing setting), the oil discharge hole provided around the piston pin of the piston pin cylinder and the connecting rod align (the connecting rod rotates around the piston pin due to the vertical movement of the internal combustion engine piston). Due to the combination of the oil drain hole of the connecting slot and the oil cylinder provided on the piston pin), the injection plate receives the repulsive force of the spring received by the spring receiver fixed to the loft integrated with the injection plate, the cylinder against the jet, and the inside of the combustion chamber. Due to the pressure, the internal combustion engine suddenly moves to the wall side of the injector cylinder, which is composed of the piston body.As a result of the transfer, the fuel gas, air, or combustion starting flame (hereinafter referred to as the situation based on fuel air) inside the injector cylinder. ) is injected into the combustion chamber of the internal combustion engine cylinder, mainly into the combustion stroke flame, through several holes provided on the injection plate that also serve as pressure feed and injection. , the flame in the cylinder combustion chamber of an internal combustion engine is prevented from being hollowed out by the injection, thereby achieving highly efficient combustion.

An example of its implementation will be explained as follows.

In the figure (1), the cylinder wall (2) is the cylinder head (3
) is the cylinder (4) is the combustion chamber (5) is the piston (
6) is the crankshaft (7) is the connecting slot (8) is the piston pin (9) is the loft of the plate-shaped piston (10) is the injection plate (11) is the butschrot (12) is the loft guide (13) is the spring cover (The oil discharge hole (]6) provided around the piston pin of the connecting slot is R (17) of the connecting slot.
) is the oil pressure feeding hole (18) provided in the crankshaft.
) is the oil pressure groove provided on the crankshaft 7H. (19) is the connecting slot around the crankshaft. (1) is the cylinder with the piston number gt.
is the connecting slot and rotating part of the crankshaft (
1) is an injection device! Pressure feeding injection hole provided on the injection plate
(20 is the friction surplus v between the injector cylinder and the injection plate
Between L ■), the rotating part (25) of the connecting slot and the piston pin passes through the circumference of the piston pin of the connecting slot, and the connecting rod that rotates around the piston pin hits the bushing slot against the bushing slot provided on the piston pin. The notch part (4) is the wall surface of the injector consisting of the internal combustion engine piston (the cutout part (4) is the wall surface of the injector cylinder (2).
B) is an ejection prevention plate and spring holder (9) fixed to a rod integrated with the injection plate. (9) is a spring ((9)
) is the injection device cylinder (m) is the oil pressure feeding hole provided around the crankshaft of the connecting slot @) is the oil pressure feeding pipe @ is the oil pressure feeding hole (31) provided around the piston pin of the connecting slot is the intake valve @) is the intake manifold (36) is the 8% valve (37) is the exhaust manifold.

The other configurations are similar to the embodiments shown in FIGS. 1 to 3.

The operation of the present invention will be explained with reference to the configurations shown in FIGS. 1 to 3.

The internal combustion engine piston body (5) has an injector cylinder (
There is a set (9) that is integrated with the injection plate (1), injection plate (
) Connected to the piston (5) through the crankshaft 7) (6
) has an oil pressure feeding hole (17) and an oil pressure feeding groove (18), and around the crankshaft (19) of the connecting lot (7) there is an oil pressure feeding hole @) like the piston pin il pump of the connecting lot. Pressure oil to be pumped to the shift flank shaft is placed in the oil pumping hole (pressure groove (side) of theory 1) provided in the cranksha ), the oil pressure feeding hole (31) provided around the crankshaft of the connecting slot, the oil pressure feeding vibe @), and the full circumference of the piston pin of the connecting slot.
(14), to the hydraulic cylinder (■) equipped with one piston pin (8). 1B), by aligning the connecting slot with the oil pumping hole (31) provided around the crankshaft (19)), push up the bush slot <n), and insert the injection plate (rod (9) integrated with the thread) into the spring receiving plate. At the same time, the internal combustion engine cylinder (3) injects the internal fuel gas or air into the injector cylinder @) through the internal combustion engine cylinder (23) toward the top dead center of the internal combustion engine (1
After the oil is pumped through the injection hole (22) provided in the oil injection plate (0), and the oil is pumped through the oil injection hole (22) provided on the crankshaft. The alignment between the groove and the oil pressure hole provided around the crankshaft shoulder of the connecting slot is interrupted.
Stop the oil pressure feeding and remove the piston pin cylinder (2o).
9) is prevented from descending, and when the internal combustion engine piston (5) reaches the temperature around the top dead center (depending on the injection start timing setting), the piston pin cylinder (20) and the piston in the connecting rod The oil is trapped by the oil discharge hole (15) provided around the pin (14) (by means of a connecting slot that rotates in a conical shape around the piston pin due to the vertical movement of the internal combustion engine piston (5)).
The push rod (n) is the protrusion prevention plate spring holder of the injection plate rod fixed to the rod (9).
The repulsive force of the spring (9) received by the internal combustion engine cylinder (
3) The pressure on the loft (9) in the combustion chamber (4) causes the injector wall (
A sudden shift to the (un) side. By transitioning the injector into the cylinder (@) the fuel air under the original situation is the injection play) (1
Several holes (22) for pressure feeding and injection provided in 0)! the law of nature ,
It is injected into the internal combustion engine cylinder (3) and combustion chamber (4), mainly into the flame during the combustion stroke.

In the present invention, in an internal combustion engine of the type that injects fuel near the top dead center of the compression stroke, which is typical of a diesel internal combustion engine, the air whose temperature inside the injector cylinder has increased is mainly combusted in the cylinder combustion chamber. It is injected into the flame during the combustion stroke (sometimes the flame is injected depending on the fuel injection method).It is mainly injected into the combustion stroke flame in spark ignition internal combustion engines, which also serves as a pressure injection injection hole. By injecting into a large flame with a starting diameter, it enables high-temperature combustion in lean conditions, suppresses the emission of harmful substances by realizing high-temperature combustion in lean conditions, and reduces the emission of black smoke in diesel engines. It is intended to prevent (As the flame increases in intensity, it reacts to the strong injection and burns at a high temperature. However, if injection is started at the combustion starting flame and the injection is not able to give sufficient effect to the flame in the combustion stroke by the time the injection ends, some combustion will start. (0) It may also be possible to start injecting into the previous fuel gas or air.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of the injection device installed in the piston of the internal combustion engine, just before the top dead center, at the start of injection. FIG. 2 is a sectional view at the bottom dead center of the injection device provided on the piston, when the piston loft starts pushing up the injection plate. FIG. 3 shows a hole for both pressure feeding and injection provided in the injection device cylinder wall, injection plate, and injection plate. In the figure (
4) is the combustion chamber (8) is the piston pin (9) is the injection plate rod (1 is the injection plate) (11) is the pusher provided on the piston pin 2) is the rod guide (15) is the connecting rod The oil discharge hole (17) provided around the piston pin is the oil pressure feed hole (18) provided in the crankshaft.
0) is a piston ζ, which is a Schrodt cylinder.
(22) is a hole (2
3) is a gap between the friction umbrella between the injection device cylinder and the injection plate. (3)) is the injection device cylinder. (31) is the oil pumping hole provided around the crankshaft of the connecting slot.

Claims (1)

[Claims] An injector that communicates with the cylinder or combustion chamber of an internal combustion engine and injects fuel gas, air, or combustion starting flame, etc. in the cylinder, which does not have its own compression function, mainly into the combustion starting flame inside the internal combustion engine cylinder or combustion chamber. The present invention is characterized by generating turbulence in the surrounding flame during injection combustion to promote combustion, and by the action of hydraulic pressure to move the injection plate up and down within the injection device cylinder.