JPH03237261A - Oil pressure switching valve with rotary disc - Google Patents

Abstract

PURPOSE:To simplify oil pressure switching structure by providing cutout parts respectively at a rotary disc interlockingly rotated with the crankshaft of an engine, and an outer frame, surrounding the rotary disc, provided with oil pressure switching holes corresponding to the number of cylinders. CONSTITUTION:This oil pressure switching valve suitably used for a fuel injection device disposed at the cylinder head of an engine is provided with a rotary disc 4 rotated by a shaft 1 interlockingly rotated with the crankshaft of the engine, and oil pressure switching holes 5-8 corresponding to the number of cylinders are provided at an outer frame surrounding the rotary disc 4. Fuel switching holes 11, 11 are also formed at the outer frame 3, in axially corresponding positions to the respective oil pressure switching holes 5-8, as well as the rotary disc 4 is provided with a bias oil supply hole 9, force-feeding injection combined holes 11, a force-feeding injection combined groove 12 and an oil pressure switching hole 13 formed therein, and the oil supply hole 9 is communicated with oil pressure switching plates 5, 7.

Description

Detailed Description of the Invention The present invention is a rotary valve that controls a pressure-receiving piston of a plunger combustion promoting device of a fuel injection device, and a notch is provided in a rotary plate that rotates in relation to the piston. A hole is made for oil to pass through when the pressure house is near the top dead center, and combustible oil that controls the plunger is used as fuel through the rotary plate notch, and the partial release plunger injects fuel into the combustion chamber.After combustion starts Plunger control oil is released by a separate notch.Plunger is activated as main cylinder.Injects air inside the sub cylinder or flame to the combustion starting flame.A device that promotes combustion by giving a rapid flow to the flame after combustion has started.A fuel injection device and a combustion promoting device are provided separately. It solves the space problem and solves the complexity of the distribution tube.The plunger control oil is released and discharged, and the other plungers are operated in reverse.
After completion of the operation, oil is pumped from a fuel pressure pump (not shown) through a hydraulic pressure switching hole and through a plunger hydraulic pressure switching valve until the combustion stroke is completed.

Below, the first implementation row will be explained based on the drawings. Figure 1 shows the hydraulic switching valve. Figure 2 shows the fuel injection combustion acceleration diagram. Depending on the number of cylinders, a fuel injection combustion acceleration device is installed on the wall of each combustion chamber, and this is controlled. The combustion stroke is reached through a hydraulic chamber 16 for the oil to be heated and a hydraulic switching hole and a pipe (not shown) provided in the outer shell 3 that surrounds the rotary plate 4 that rotates by the shaft 1 that rotates related to the piston, depending on the number of cylinders. Hydraulic chamber 16, outer shell 3 hydraulic switching hole 5, outer shell 3 hydraulic switching hole 7, and hydraulic chamber 1 that reaches the suction stroke
6. Hydraulic chamber 16 that reaches the compression stroke, outer shell 3 hydraulic pressure switching hole 6 shown in FIG. 1A, outer shell 3 oil pressure switching hole 8 shown in FIG. 1A
The fuel switching hole 11 provided in the outer shell 2 is connected to the hydraulic chamber 16 that reaches the exhaust stroke, and the fuel switching hole 11 provided in the outer shell 2 at the same position as the oil pressure switching hole 5 of the outer shell 3 is connected to the plunger body fuel pumping hole 5 and the outer shell 3 oil pressure switching hole 7 that reach the combustion stroke. The fuel switching hole 11 provided in the outer shell 2 at the same position is the plunger body fuel pressure feeding hole 5 which reaches the suction stroke.
, the fuel switching hole 11 provided in the outer shell 2 at the same position as the outer shell 3 oil pressure switching hole 6 is the plunger body fuel pressure feeding hole 5 which reaches the compression stroke, and the fuel switching hole provided in the outer shell 2 at the same position as the outer shell 3 oil pressure switching hole 8. Reference numeral 11 denotes a plunger body which reaches the exhaust stroke, and is connected to the fuel feeding hole 5 by respective pipes (not shown). Near the top dead center of compression, the combustion chamber 1 receives pressure from the plunger 3 due to the difference in direct aperture between the plunger 3 and the plunger 4. The oil in the hydraulic chamber 16 that exceeds the pressure is transferred to the fuel pumping hole 11 of the outer shell 2 and the oil pressure switching hole 5 of the outer shell 3 through the fuel switching hole 10 of the rotary plate 4 shown in FIGS. 1A and B. A fuel supply groove 6, a fuel pressure supply hole 7, a fuel injection hole 7, and a fuel supply groove 6 around the plunger 3, in which fuel whose supply amount is adjusted by a fuel adjustment valve (not shown) provided between the plunger body and the fuel pressure supply hole 5 of the combustion accelerator are provided. The valve 8 injects into the combustion chamber 1 at an arbitrary timing.During the combustion temperature rising stage, the hydraulic pressure switching groove 12 of the rotary plate 4 reaches the outer shell 3 hydraulic pressure switching hole 5 and 7, allowing the plunger control oil to be discharged, and the plunger 3 adjusts the combustion chamber pressure. After the start of combustion, the plunger moves in the direction of arrow B or the like, and the gas or flame inside the sub cylinder 10 is mainly injected into the combustion flame through the pressure feed/injection holes 11, which are provided with several holes at arbitrary angles, and the pressure feed/injection grooves 12, using the plunger and one sub-piston. Promotes high-temperature combustion, significantly improves exhaust gas pollution, and achieves high output and low fuel consumption in this example.When the plunger 3 moves in direction B, the hydraulic chamber The oil discharged from 16 is pumped to the suction stroke hydraulic chamber 16 through the rotary plate 4 hydraulic pressure switching groove 12 hydraulic pressure switching hole 13 provided on the shaft 1, the outer shell 3, and the hydraulic pressure switching hole 7. The plunger 3 moves in the A direction and mutually operates to perform the compression stroke. Then, the pressure plunger 3 transfers the gas in the combustion chamber 1 to the small cylinder 10 of the combustion accelerator through the injection/injection hole 11 and the injection/injection groove 12 in the A direction and the B direction. A fuel injection combustion accelerating device which pumps oil from the outer shell 2, shaft 1, and rotary plate 4 through oil supply holes 9 provided diagonally on the outer shell 2, the shaft 1, and the rotary plate 4 by sequentially rotating the oil supply hole 9 and the outer shell 3 oil pressure switching hole. The oil required for the hydraulic damper in the oil chamber 17 increases or decreases when the plunger moves up and down due to the difference in direct line between the plungers 3 and 4, so it is connected to the other plunger oil chambers 17 through a pipe (not shown) and is always supplied with oil by a hydraulic pump. Fig. 1 14 shows the oil leakage drain groove 15 shows the oil leakage drain hole. Fig. 2 shows the valve seat 13 shows the moving part 14, 15 shows the hydraulic expander, and the hydraulic chamber 18 shows the spring 19, the plunger body connection part 20, and the oil supply hole 21. A second embodiment of the nut will be described below based on the drawings.

FIG. 3 shows a hydraulic switching valve of a combustion promoting device. FIG. 4 shows a combustion promoting device, and parts having the same functions as those in the first embodiment are given the same reference numerals for explanation.

The second embodiment differs from the first embodiment in that oil pressure switching holes are provided in the outer shells 2 and 3 of the rotating plate 4 rotated by the shaft 1, depending on the number of cylinders. Connections between the hydraulic chamber of the pressure receiving piston 3 and the suction stroke hydraulic chamber 10, the suction stroke hydraulic chamber 11, and the outer shell 2 are made via pipes (not shown), respectively, through the combustion stroke hydraulic chamber 11 and the hydraulic switching holes 5 of the outer shells 2 and 3. The fuel stroke hydraulic chamber 10 is connected through the hydraulic switching hole 7 of 3, the compression stroke hydraulic chamber 11, the exhaust stroke hydraulic chamber 10, the exhaust stroke hydraulic chamber 11 and the outer shell 2 through the hydraulic switching hole 6 of the outer shell 2 and 3.
is connected to the compression stroke hydraulic chamber 10 through the hydraulic pressure switching hole 8 of 3. During the combustion stroke, the hydraulic pressure switching hole 10 provided in the rotary plate 4 that operates the pressure receiving piston 3 rotates to the hydraulic pressure switching hole 5 provided in the outer shells 2 and 3. The combustion accelerator pressure receiving piston 3 in the joint combustion stroke moves in the direction of arrow B while discharging the hydraulic chamber by the pressure of the combustion chamber 1, and the oil discharged during the transition is transferred to the pressure receiving piston hydraulic chamber 1 during the suction stroke.
0, the pressure-receiving piston 3 moves in the direction of arrow A. At this time, the combustion stroke hydraulic chamber 10 and the suction stroke hydraulic chamber 11 connected to the hydraulic pressure switching hole 7 are shut off by the rotating plate 4, and the combustion in the compression stroke is stopped. When the chamber 1 reaches the combustion stroke, the hydraulic pressure switching hole 10 of the rotary plate 4 is rotated to the hydraulic pressure switching hole 6 provided in the outer shells 2 and 3 shown in FIG. Operation, arrow B while draining oil from hydraulic chamber 11
The oil discharged during the transition is transferred to the combustion chamber 1 of the exhaust stroke.
The pressure-receiving piston 3 moves in the direction A to the hydraulic chamber 10 which has reached the suction stroke, and when the combustion chamber in the suction stroke reaches the combustion stroke, the hydraulic pressure switching hole 10 of the rotary plate 4 changes to the hydraulic pressure switching hole 7 of the outer shells 2 and 3.
During the combustion stroke, the combustion accelerator pressure receiving piston 3 discharges the oil in the hydraulic chamber 11 due to the combustion chamber 1 pressure, etc. In the direction of arrow B, the oil to be discharged during the transition is transferred to the hydraulic chamber when the combustion stroke hydraulic chamber 10 reaches the suction stroke. 10, the pressure receiving piston 3 moves in the direction of arrow A. Every time the pressure receiving piston 3 moves, the pressure receiving piston control oil circulates to prevent overheating of the oil and enable mutual operation. The combustion promotion effect is based on the first embodiment described above, and oil is pumped by a hydraulic pump (not shown) when the pressure received by the pressure receiving piston moving in direction B is high. 4 through the hydraulic feed groove 11 and hydraulic feed hole 12 provided in the outer shell 2.
The rotary plate 4 hydraulic pressure feed hole 12 sequentially rotates and pumps the plunger control oil to the hydraulic pressure switching holes 3 and 3. In the first and second embodiments, when the pressure of the oil pumped from the hydraulic pump exceeds the combustion chamber pressure when using an engine brake in a car, etc., use a pressure reducing valve to lower the pressure of the oil pumped from the hydraulic pump, or reduce the pressure of the oil pumped to the rotary plate. The first and second embodiments have been described based on a four-cylinder internal combustion engine, but an oil discharge groove (not shown) is provided on the outer shell to discharge excess oil and the pressure-receiving piston 3 completes the movement in the B direction. If the combustion accelerator hydraulic chamber 11 is left over and the rotary plate 4 and the crankshaft (not shown) rotate at the same speed, and the oil discharged from the oil is received only by the hydraulic chamber 10, then the combustion accelerating apparatus and the combustion accelerator for 8 cylinders can be used. Applicable plunger pump that generates high pressure It is possible to control the operation of the fuel or fuel gas injection device in the cylinder. Fig. 3: Oil leakage drain groove 14: Oil leakage hole: Fig. 4: Sub-piston 4: Sub-cylinder: 5: Pressurized injection The dual-purpose grooves 6 and 7 are the hydraulic damper, the hydraulic chamber 8 is the moving part 9, the oil chamber 12 is the hydraulic pressure feed hole 13, and the guide 14 is the connecting part. In the first embodiment, the fuel injection start timing is fixed by an advance device.In the combustion promotion device, high torque is maintained by the delay device.The first and second embodiments are both diesel-type spark Ignition type rotary type or 4-stroke 2-stroke internal combustion engine can be used in a wide range of applications, and the hydraulic switching that controls the operation of the plunger or pressure-receiving piston is mutually operated, and the oil supply for consumable consumption is supplied via the rotary plate to the plunger or pressure-receiving piston. The pressure-receiving piston pumps oil when it receives high pressure immediately after mutual operation, thereby supplying high-pressure oil without oversupplying it. Mutual operation enables operation in any rotation range, and also pumps the oil required for consumable consumption. Groove oil pressure switching holeFuel switching hole etc. can be provided anywhere on the outer surface of the rotating plate depending on the situation.Oil pressure switching hole attached to the rotating plate can also be provided on either the front or back side depending on the above. Regarding the operation of a certain plunger or pressure-receiving piston, it is also possible to provide a spring operation space and control the operation by softening the impact when the spring is fixed to the plunger or pressure-receiving piston.

[Brief explanation of drawings]

FIG. 1 shows a hydraulic switching valve.FIG. 2 shows a fuel injection combustion promoting device.FIG. 3 shows a hydraulic switching valve for a combustion promoting device.FIG. 4 shows a combustion promoting device. Explanation of major symbols

Claims (1)

[Scope of Claims] 1. A valve that has a notch on the rotary plate and the outer shell to change the oil pressure.2 A valve that has a notch on the rotary plate to discharge oil from the hydraulic chamber and force-feed the discharged oil to another hydraulic chamber. Valve 3 for switching oil pressure according to claim 1, wherein a notch is provided in the rotating plate to release part of the oil that controls the plunger and inject it into the combustion chamber as release fuel, and then release and discharge the oil that mainly operates the plunger. Valve 4 for switching the hydraulic pressure according to claim 1, characterized in that the oil is force-fed to another hydraulic chamber. The oil pressure-fed from the hydraulic pump is force-fed to the hydraulic chamber through a notch provided in a rotary plate. A valve for switching oil pressure according to claim 1, characterized in that: