KR200328092Y1 - Internal Combustion Engine's Device for opening or closing it's Input/Output Valves - Google Patents

Abstract

The present invention relates to an internal combustion engine, and more specifically, to selectively operate only half of all main cylinders of the internal combustion engine when the power unit and the driving unit are disconnected while the vehicle is started. It relates to an internal combustion engine that can save fuel. The present invention has an opening and closing means consisting of a locking end integral to the exhaust locker arm positioned to open and close the exhaust valve mounted on the main cylinder and a fixed part which is supported by the intake rocker shaft and rotated in close contact with the locking end, and the electronic control unit ( It is provided with a drive means connected with the ECU to give the pressing force so that the opening and closing means is in close contact with each other but released.

Description

Internal Combustion Engine's Device for opening or closing it's Input / Output Valves}

The present invention allows the fuel to be selectively injected into only half of the mixed fuel injected into all the main cylinders of the internal combustion engine when the power unit and the driving unit are disconnected while the internal combustion engine is started. It relates to an internal combustion engine which controls the exhaust valve of an unmaintained main cylinder to be always open so that fuel can be saved while minimizing resistance.

In general, an internal combustion engine includes a cylinder block, a cylinder head mounted on an upper portion of the cylinder block, constituting a combustion chamber together with the cylinder block, an intake and exhaust valve for controlling the injection of mixed fuel through the cylinder head and the discharge of the exhaust gas, and the opening and closing thereof. Contains the device.

The opening and closing device of such a conventional intake and exhaust valve and a method of operating the same will be briefly described. 1 is shown.

1 is a view showing a part of a conventional internal combustion engine.

As shown in the drawing, a general opening and closing device 6 is mounted on the top of the main cylinder 1 to open and close the manifold 7, which is the inflow and outflow path of the mixed fuel and the exhaust gas, into the main cylinder 1. 4A and 4B and a cam shaft 5 which is rotated in place to give an opening / closing motion to the intake and exhaust valves 4a and 4b are provided so that a plurality of cam shafts 5 are fixed at regular intervals. As the cam 5a installed is rotated, the suction rocker arm 6a and the exhaust rocker arm 6b alternate in real time to pressurize the upper ends of the intake and exhaust valves 4a and 4b regularly. The intake and exhaust ports 12a and 12b are opened and closed respectively.

In addition, conventional devices having such a valve opening and closing device, for example, are equipped with a so-called computer called an electronic control unit (ECU). The electronic control unit is a signal voltage received from sensors attached to various main components, such as the rotational speed of the engine, the amount of intake air, etc. in the step of injecting the mixed fuel into the respective main cylinders 1, and according to the operating state of the internal combustion engine It controls the injection amount, injection timing, ignition timing, etc. by controlling the output actuator, the injector and various relays to operate under the conditions.

However, in the existing internal combustion engine, when the cam shaft 5 rotates, the intake and exhaust valves 4a and 4b have to be opened and closed by the cam 5a, and various sensors are simply injected into the installed main cylinders 1. It is possible to control the mixing ratio of the mixed fuel or to control only when the fuel is injected, and once the engine is started, the slow gear of 10 km or less, that is, the transmission gear is 1 stage (L; Low), neutral (N; Netural), or parking ( In the P and Parking, the mixed fuel is continuously injected into the installed main cylinders 1 and a series of strokes are performed. For example, all the main cylinders (1) are not driven even though they are not required to drive every main cylinder (1). There is a disadvantage that 1) is driven and consumes fuel without need. Moreover, there has been a consensus that the release of hazardous substances from the consumption of unnecessary fuels has a significant negative impact on environmental pollution.

The present invention allows the fuel to be selectively injected into only half of the mixed fuel injected into all the main cylinders of the internal combustion engine when the power unit and the driving unit are disconnected while the internal combustion engine is started. It is to provide a valve opening and closing device to save fuel while minimizing resistance by controlling the exhaust valve of an unmaintained main cylinder to be always open.

Therefore, the present invention solves the above-mentioned problems, and the intake rocker arm and the exhaust rocker arm, which are controlled by the electronic control unit (ECU) and are rotatably supported on each of the intake rocker arm and the exhaust rocker arm shaft, are installed on the main cylinder. In the internal combustion engine which generates power by repeating a series of stroke movements in which the intake and exhaust of the mixing fuel flows into the main cylinder by inducing the driving of the intake and exhaust valves to meet the cam rotated in the lower portion of the intake and exhaust, It is formed to form a curved portion corresponding to the upper surface of the exhaust rocker arm, one end thereof is formed with an end perpendicular to the upper surface of the exhaust rocker arm, and one side of the fitting piece formed with the fitting hole to be fitted to the rocker arm shaft by the intake Is formed perpendicularly to the locking end and the engaging projection is located oppositely to meet in close contact with the other side Switching means and having a fixing piece formed so that the ball connecting means is connected integrally made of a government; And a driving means connected to the connection hole of the fixing piece so as to apply a pressing force such that the locking projection is rotated downward by a signal by the signal of the electronic control unit so as to be in close contact with or released from the locking end.

In particular, the drive means is characterized in that the cylinder is operated by any one of pneumatic or hydraulic.

1 is a view showing a part of a conventional internal combustion engine,

2 is a view installed by applying the valve opening and closing device according to the present invention,

3A is an enlarged view of 'A' of FIG. 2,

3b is a view showing an operating state when the mixed fuel is normally injected into the main cylinder,

3C is a view showing an operating state when no mixed fuel is injected into the main cylinder.

Explanation of symbols on the main parts of the drawings

Cylinder: 1 Fixing Part: 14

Cylinder head: 2 jamming: 14a

Intake valve: 4a Fitting: 14b

Exhaust valve: 4b Fixed piece: 14c

Camshaft: 5 Ends: 16

Intake Rotorarm: 6a Opening and closing means: 18

Exhaust rocker arm: 6b Driving means: 22

Intake air shaft: 8a Insertion hole: 24

Exhaust rocker armature: 8b Connector: 19

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in more detail.

Prior to the description, the present invention may be applied to various internal combustion engines, but in the present embodiment, the present invention will be limited to the internal combustion engine of a vehicle.

FIG. 2 is a view illustrating a valve opening and closing device installed in accordance with the present invention, and FIG. 3A is an enlarged view of 'A' of FIG. 2.

As shown in the drawing, the present invention improves the conventional valve opening and closing device 6 so that the transmission gear is neutral (N; Netural), parking (P; Parking) or first stage (L; Low) (hereinafter 'N, P, L) When only a half of the main cylinders (1) installed when the power unit and the driving unit are disconnected, for example, only two cylinders in four cylinders and only three cylinders in six cylinders. The main cylinder 1 selected to be injected at the same time and the injection of the mixed fuel is cut off allows the exhaust valve 4b mounted on the top of the main cylinder 1 to be opened at all times, thereby minimizing the resistance of the main cylinder 1 and saving fuel. I would have to.

The valve opening and closing device 26 according to the present invention includes an opening and closing means 18.

The opening and closing means 18 is composed of a locking end 16 and the fixing portion (14).

First, the locking end 16 has a shape corresponding to a curved portion of one side of the upper surface of the exhaust rocker arm 6b and is made of a metal material. In addition, it is integrated with the upper portion of the exhaust rocker arm 6b adjacent to the camshaft 5 so as to be able to forcibly control the vertical rotation of the barry rocker arm 6b which moves according to the rotation of the cam 5a. It is in close contact with or released from the fixing portion 14 installed on the position.

The fixing part 14 is fitted into the intake roller arm shaft 8a to support the intake roller arm 6a, and the fitting hole 24 is rotated by the intake roller arm shaft 8a as the support shaft. Is fitted to the fitting piece (14c) and the fitting piece (14c) formed in close contact with the end portion (16a) of the locking end 16 and at the same time contact with the locking end (16) and the exhaust rocker arm (6b) A locking piece 14c having a vertical cross section to be fitted to the branch and an elliptical connecting hole 19 formed to protrude so that the cylinder 22 can be connected to the opposite direction to the locking protrusion 14a. ) And also made of metal.

The locking projection 14a is vertically rotated from the cylinder 22 controlled by the signal of the electronic control unit and vertically rotated together with the fitting piece 14b which is rotated by the support arm as the support shaft. The end portion 16a of the locking end 21 is fitted into a grounded portion between the exhaust rocker arm 6b and serves to maintain the opening of the exhaust valve 4b.

Further, the locking projection 14a is spaced apart from the locking projection 14a and the locking end 16 than h, which is an interval between the circle of the cam 5a and the lobe 5b, which is a deflected portion of the cam 5a. The gap h 'should be set larger. This is to ensure that normal operation can be performed without interfering with the locking end 16 integrally attached to the exhaust rocker arm 6b during normal driving.

In addition, the fixing piece (14c) is formed integrally with an elliptical connecting hole 19, which allows the fixing part 14 to be connected to the cylinder 22 through the connecting hole 19, such a cylinder (22) may be pneumatic or hydraulic.

The cylinder 22 is connected to an electronic control unit called a computer of the automobile, which attaches the mixed fuel to the selected half of the main cylinder 1 when the transmission gear is placed in the N, P and L states. Due to the detection of the sensor is rotated vertically through the drive means of the cylinder 22 connected to the air control box (Air Control Box) controlled according to the signal transmission of the electronic control unit.

It will now be described in more detail the operating state of the present invention.

Figure 3b is a view showing the operating state when the mixed fuel is injected into the main cylinder, Figure 3c is a view showing the operating state when the mixed fuel is not injected into the main cylinder.

As shown in FIG. 3B, the present invention is designed to provide a signal from the electronic controller to transmit and receive signals from sensors attached to various components during daily driving, that is, when mixed fuel is injected into all the installed main cylinders 1. Since there is no signal voltage in the cylinder 22 which is a driving means, the fixing part 14 is stopped, Normally, even if the exhaust rocker arm 6b encounters the nose which is the peak of the lobe 5b, which is the deflected portion of the cam 5a, and moves upward, the lobe 5b and the origin of the cam 5a are moved. As long as the deflection (h) is disposed to be smaller than the spaced length (h ') between the locking end 16 and the locking projection 14a, the camshaft 5 of the camshaft 5 is received without any interference from the fixing part 14. Open and close by action.

However, as shown in FIG. 3C, when the mixed fuel is not injected into the selected main cylinder 1, that is, when the vehicle is started at idle or at low speeds of about 10 km, the power unit and the driving unit are blocked. In this case, a signal is transmitted to the electronic controller from a sensor for detecting positions of P, N, and L of the transmission gear. The electronic control unit allows an air control box (not shown) to discharge air into the cylinder 22 via the received signal voltage, thereby allowing the cylinder 22 to be introduced into the cylinder 22. The piston (not shown in the figure) in the top and bottom motions.

Thus, due to the pressing force caused by the vertical movement of the cylinder 22 as the driving means, the locking projection 14a which makes the supporter arm shaft 6a the support shaft with the intake shaft rotates downward, and thus the end of the locking stage 16 is rotated vertically. The exhaust rocker arm 6b in close contact with the end portion 16a and fitted into the ground portion between the exhaust rocker arm 6b and the locking end 16 and vertically rotated upward by a predetermined time by the rotation of the cam 5a. Since the exhaust valve 4b to be closed is continuously opened, the fuel can be reduced while minimizing the resistance of the main cylinder 1 even when there is no inflow of the mixed fuel.

More preferably, even if only half of the installed main cylinders 1 is used, it is preferable to select a combination in which an explosive stroke is made diagonally around a crank shaft so as not to turn off the engine.

The present invention has the above-described configuration, and the mixed fuel blocks injection of the selected half of the main cylinders installed when the power unit and the driving unit are shut off while the vehicle is started, such as when the vehicle is idle or at low speeds of about 10 km. At the same time, the exhaust valve is continuously opened to minimize the resistance to the main cylinder and to save fuel, thereby reducing the emission of solvent substances, thereby saving energy and protecting the environment.

In addition, as a result of manufacturing and testing the product of the present invention, when the gear shift is in the positions of P, N, and L for 12 hours, fuel consumption is reduced by 20-30% compared to the conventional one.

Claims (2)

An intake rocker arm and an exhaust rocker arm, which are controlled by an electronic control unit (ECU) and are rotatably supported at each of the intake rotor arm shaft and the exhaust rocker arm shaft, are installed on the main cylinder. In an internal combustion engine that generates power by repeating a series of stroke movements that meet the cam and cause the intake / exhaust valve to drive the mixed fuel into the main cylinder. A hooking end formed with a curved portion corresponding to the upper surface of the exhaust rocker arm, and one end of which is formed an end perpendicular to the upper surface of the exhaust rocker arm; The opening and closing means made of a fixing portion having a fixing piece integrally formed with a connecting hole formed to be connected to the opposite side so as to be in close contact with each other perpendicular to the locking end and the driving means; And And a driving means connected to the connection hole of the fixing piece to provide a pressing force such that the locking projection is rotated downward by a signal by the signal of the electronic control unit so as to be in close contact with or released from the locking end. Device. The valve opening and closing device according to claim 1, wherein the driving means is a cylinder operated by either pneumatic or hydraulic pressure.