JP2005016501A - Method of correspondence at time of overlap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent air-fuel mixture or air entering an engine from an intake valve, an intake port from being discharged from an exhaust valve, an exhaust port without being done anything at a time of overlap when the intake valve, the intake port and the exhaust valve, the exhaust port simultaneously open when a piston valve and a rotary valve are used in a four-cycle engine, a six-cycle engine, an eight-cycle engine and a ten or more cycle engine. <P>SOLUTION: An intake vale for air only and an intake port for air only are newly provided and are opened without opening the intake valve and the intake port at the time of overlap. And the exhaust valve and the exhaust port are opened, and then the intake valve and the intake port are opened. The newly provided intake valve for only air and the intake port for only air are closed after the exhaust valve and the exhaust port are closed and before a piston lowers and reaches a bottom dead center. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a four-cycle engine (four-cycle gasoline engine, four-cycle diesel engine and in-cylinder four-cycle gasoline engine), six-cycle engine {[diesel engine and gasoline engine, six-cycle engine (1990 patent application). No. 417964). ] And [6-cycle diesel engine (1996 Patent Application No. 140582). ] And [6-cycle gasoline engine (1996 Patent Application No. 151453). ] And [In-cylinder injection 6-cycle gasoline engine (1996 Patent Application No. 172736). ]. }, 8-cycle engine {[8-cycle diesel engine (1997 Patent Application No. 91265)]. ] And [In-cylinder injection 8-cycle gasoline engine (1997 Patent Application No. 129090). ] And [8-cycle gasoline engine (1997 patent application No. 184308). ]. } Engine of 10 cycles or more [Gasoline engine, diesel engine and in-cylinder injection gasoline engine of 10 cycles or more (1997 Patent Application No. 274908). ] Piston valve (reciprocating valve), rotary valve {[Rotary valve used in 4-cycle engine and 6-cycle engine instead of piston valve (Japanese Patent Application No. 356145)]. ] And [Rotary valve instead of reciprocating valve (1996 Patent Application No. 179726). ]. }, When moving from the last exhaust process (only exhaust process in the case of a 4-cycle engine) to the first intake process (only intake process in the case of a 4-cycle engine), the intake valve (In the case of a gasoline engine, the intake valve dedicated to the air-fuel mixture.), The intake port (the intake port dedicated to the air-fuel mixture in the case of a gasoline engine), the exhaust valve, and the exhaust port are open at the same time. It is related with the method of correspondence.
[0002]
[Prior art]
When moving from the last exhaust process to the first intake process when using a piston valve or rotary valve on a conventional 4-cycle engine, 6-cycle engine, 8-cycle engine, 10-cycle engine or more, an intake valve, In the method of handling at the time of overlap, where the intake port, the exhaust valve, and the exhaust port are open at the same time, there are things that change the opening and closing timing of the valve and the air port.
[0003]
[Problems to be solved by the invention]
When a piston valve or rotary valve is used in a conventional 4-cycle engine, 6-cycle engine, 8-cycle engine, or 10-cycle engine or more, when moving from the last exhaust process to the first intake process, There was a problem that the air-fuel mixture or the air was exhausted from the exhaust valve and the exhaust port without doing anything at the time of overlap when the intake port, the exhaust valve and the exhaust port were open at the same time .
[0004]
In particular, in the case of a gasoline engine, there is a problem in that the air-fuel mixture is not performed and is discharged from the exhaust valve and the exhaust port.
[0005]
When the piston valve and the rotary valve are used for a four-cycle engine, a six-cycle engine, an eight-cycle engine, an engine of 10 cycles or more, the present invention is arranged so that the intake valve, The purpose is to prevent the air-fuel mixture or air from being exhausted without doing anything when the air inlet, exhaust valve, and exhaust are open at the same time. In the case of a gasoline engine, the purpose is to prevent the air-fuel mixture from being discharged without being overdone when it is overlapped.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, when a piston valve or a rotary valve is used in a four-cycle engine, six-cycle engine, eight-cycle engine, or ten-cycle engine of the present invention, the first time from the last exhaust process. When moving to the intake process, the intake valve, intake port, exhaust valve, and exhaust port are open at the same time. Open a new port, open it, close the exhaust valve and the exhaust port, then open the intake valve and the intake port.The newly provided air-only intake valve and the air-only intake port are the exhaust valve and the exhaust port. Closed until the bottom dead center is reached (in the case of a diesel engine and an in-cylinder injection gasoline engine, the intake valve, intake air The same substance can be inhaled even when combined, and even when a piston valve or rotary valve is used on a 6-cycle gasoline engine, 8-cycle gasoline engine, 10-cycle gasoline engine or more, Even if there is no intake valve and air intake port, the existing air intake valve and air intake port may be combined, and the intake port and air intake port are also used. Instead of using the same rotary valve, the intake port and the intake port dedicated to air, it is to provide a new air port in the rotary valve with the intake port and the rotary valve with the intake port dedicated to air. ).
[0007]
[Action]
When a piston valve or rotary valve is used in a 4-cycle engine, 6-cycle engine, 8-cycle engine, or 10-cycle engine or more configured as described above, the process proceeds from the last exhaust process to the first intake process. At the time of overlap, the intake valve, the intake port, the exhaust valve, and the exhaust port are open at the same time, without opening the intake valve, the intake port, an air dedicated intake valve, an air dedicated intake port, Open it, close the exhaust valve and exhaust port, then open the intake valve and intake port. The newly provided air dedicated intake valve and air dedicated intake port will die after the exhaust valve and exhaust port are closed. Due to closing until the point is reached, the air-fuel mixture or air that has entered the cylinder (in the cylinder) from the intake valve or intake port is discharged from the exhaust valve or exhaust port without doing anything. There is no need to say .
[0008]
In particular, in the case of a gasoline engine, there is no need to say that the air-fuel mixture is exhausted without doing anything.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment will be described with reference to the drawings. In FIG. 1, the last exhaust when a piston valve and a rotary valve are used in a 4-cycle engine, a 6-cycle engine, an 8-cycle engine, and an engine of 10 cycles or more. As a typical example, a four-cycle gasoline engine is used to show how to handle an overlap when the intake valve, intake port, exhaust valve, and exhaust port are open at the same time. It is a cross-sectional view assuming that an engine using a piston valve is seen from above with a horizontal section. In short, the intake valve dedicated to the mixture, the exhaust valve, and the final exhaust process (in this case, When moving from the simple exhaust process to the first intake process (in this case, just the intake process), the intake and exhaust valves dedicated to the mixture are open at the same time. Open the intake valve dedicated to air without opening the intake valve dedicated to the air-fuel mixture, open it, close the exhaust valve, and then open the intake valve dedicated to the air-fuel mixture. The valve is a cross-sectional view showing the arrangement of an intake valve and a plug dedicated to air that are closed between the exhaust valve closing and the bottom dead center.
[0010]
Further, hereinafter, the intake valve dedicated to the mixture is the valve a, the exhaust valve is the valve b, and the intake valve dedicated to the air is the valve c.
[0011]
1 and FIG. 3, an intake pipe and a carburetor are attached to the valve a, an exhaust pipe is attached to the valve b, and an intake pipe dedicated to air is attached to the valve c.
[0012]
In addition, the number of valves a, b, c, and plugs shown in FIG. 1 is only the minimum necessary number, and the arrangement, number, and size are not included in this patent.
[0013]
In the embodiment shown in FIG. 2, the location of each point when using a piston valve in a 4-cycle gasoline engine and the corresponding method at the time of overlap is shown. Intake process → Compression process → Expansion process → Exhaust process, but in order to make it easier to understand the location of each point, it shows the points from the point just before the completion of the expansion process to the point just before the completion of the expansion process. It is a figure according to the rotation of the shaft, from point d to point r,
Point d Immediately before completion of the expansion process [immediately before the piston descends and reaches bottom dead center (point d and point r are the same). ]
Point e Immediately after the start of the exhaust process (immediately after the piston starts to rise)
Point f Middle of the exhaust process (in terms of crank shaft rotation angle, a little before 20 ° from top dead center)
Point g Middle of exhaust process (Crank / shaft rotation angle is a little past 20 ° from top dead center)
Point h Immediately before completion of the exhaust process (immediately before the piston moves up and reaches top dead center)
Point i Immediately after the start of the intake process (immediately after the piston starts to descend)
Point j Intake process middle (a little before 20 ° past top dead center in terms of crank shaft rotation angle)
Point k Intake process middle (in terms of crank shaft rotation angle, a little over 20 ° from top dead center)
Point l In the middle of the intake process (in terms of crank shaft rotation angle, a little before 90 ° from the top dead center)
Point m The middle of the intake process (in terms of crank shaft rotation angle, a little over 90 ° from the top dead center)
Point n Immediately before the completion of the intake process (immediately before the piston descends to the bottom dead center)
Point o Immediately after starting the compression process (immediately after the piston starts to rise)
Point p Immediately before completion of the compression process [immediately before the piston moves up and reaches top dead center (ignition). ]
Point q Immediately after the start of the expansion process (immediately after the piston starts to descend)
Point r Immediately before completion of the expansion process [immediately before the piston descends and reaches bottom dead center (point r and point d are the same). ]
It is.
[0014]
In the embodiment shown in FIGS. 3 to 17, in order to show the movement of each valve, the ignition timing of the plug, and the location of the piston at each time point shown in FIG. 1 is a vertical cross-sectional view assuming that 1 is viewed from the direction of the cross-section SS, FIG. 3 to FIG.
FIG. 3 Immediately before completion of the expansion process [point d (point d and point r are the same)]
Valve a, valve b and valve c are closed (valve timing is not included in valve b).
Fig. 4 Immediately after the start of the exhaust process (point e)
Valve a is closed, valve b is open, and valve c is closed.
Fig. 5 Intermediate stage of exhaust process (point f)
Valve a is closed, valve b is open, and valve c is closed.
Fig. 6 Intermediate stage of exhaust process (point g)
Valve a is closed and valves b and c are open.
Fig. 7 Immediately before the exhaust process is completed (point h)
Valve a is closed and valves b and c are open.
Fig. 8 Immediately after the start of the intake process (point i)
Valve a is closed and valves b and c are open.
Fig. 9 Intake process middle (point j)
Valve a is closed and valves b and c are open.
Fig. 10 Intake process middle (point k)
Valve a is open, valve b is closed, and valve c is open.
Fig. 11 Intake process middle (point 1)
Valve a is open, valve b is closed, and valve c is open.
Fig. 12 Intake process middle (point m)
Valve a is open and valves b and c are closed.
Fig. 13 Immediately before the completion of the intake process (point n)
Valve a is open and valves b and c are closed.
Fig. 14 Immediately after starting the compression process (point o)
Valve a, valve b, and valve c are closed (valve timing is not included in valve a).
Fig. 15 Immediately before completion of the compression process [point p (ignition)]
Valve a, valve b, and valve c are closed.
Fig. 16 Immediately after the start of the expansion process (point q)
Valve a, valve b, and valve c are closed.
FIG. 17 Immediately before completion of the expansion process [point r (point r and point d are the same)]
Valve a, valve b and valve c are closed (valve timing is not included in valve b).
It is.
[0015]
What is important here is to see the opening and closing of the valve a, the valve b, and the valve c at the time of overlap from FIG. 5 (point f) to FIG. 12 (point m).
[0016]
In addition, there are no longitudinal cross sections showing the steps of the corresponding method at the time of overlap when a piston valve is used on a 6-cycle gasoline engine, an 8-cycle gasoline engine, or a 10-cycle gasoline engine or more. Since the movement of each valve during overlap is the same, it is omitted here.
[0017]
Further, the valve c at the time of the intake process after the second intake process (air intake process) of the 6-cycle gasoline engine, the 8-cycle gasoline engine, and the gasoline engine of 10 cycles or more may also be used as the valve c.
[0018]
In addition, the steps of the method of responding at the time of overlap when using a piston valve for a diesel engine, a cylinder injection gasoline engine, a 4-cycle engine, a 6-cycle engine, an 8-cycle engine, an engine of 10 cycles or more Although a longitudinal sectional view is not shown, if the plaque is replaced with a fuel injector or a plug and a fuel injector, a longitudinal sectional view of each engine process can be drawn according to a gasoline engine.
[0019]
In addition, when a rotary valve is used on a 4-cycle engine, 6-cycle engine, 8-cycle engine, 10-cycle engine or more of a gasoline engine, a diesel engine, and an in-cylinder injection gasoline engine, a method of handling at the time of overlap Although the longitudinal cross-sectional view showing the process of (2) is not drawn, two rotary burfs are used, and one of the cross sections (inner shape) is H type {{used for 4-cycle engines and 6-cycle engines, A rotary valve (Japanese Patent Application No. 356145) that replaces the piston valve. ] And [Method of intake and exhaust of rotary valve used in 4-cycle engine and 6-cycle engine (Japanese Patent Application No. 218116). ]. } And [Rotary valve instead of reciprocating valve (1996 patent application No. 179726). ]. }, 3 types of air vents or 3 rotary valves are used [when the intake / exhaust process is performed with one rotary valve per cylinder of a rotary valve used in a 4-cycle engine and a 6-cycle engine. 2 ignition points, use of 3 rotary valves per cylinder, 2 ignition points (1994 patent application No. 174,661). Thus, if three types of air mouths are provided, a longitudinal sectional view showing the steps of the corresponding method at the time of overlap can be drawn.
[0020]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0021]
When a piston valve or rotary valve is used on a 4-cycle engine, 6-cycle engine, 8-cycle engine, 10-cycle engine or more of a gasoline engine, a diesel engine, and an in-cylinder injection gasoline engine, it is the first time from the last exhaust process. When moving to the intake process, the intake valve, the intake port, the exhaust valve, and the exhaust port are open at the same time. During the overlap, the intake valve and the intake port for air are used without opening the intake valve and the intake port. Open the intake valve and the exhaust port, and then open the intake valve and the intake port.The newly installed air dedicated intake valve and the air dedicated intake port close the exhaust valve and the exhaust port. The air-fuel mixture or air that has come out of the intake valve and the intake port is left in the cylinder (cylinder without any action) due to the piston being lowered and closing to the bottom dead center. Through the inside) of the exhaust valve, and it is discharged from the exhaust port, and it is unnecessary to say.
[0022]
In particular, in the case of a gasoline engine, there is no need to say that the air-fuel mixture is exhausted through the cylinder without doing anything, so fuel waste is eliminated, leading to resource and energy savings.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the arrangement of a valve a, a valve b, a valve c, and a plug when using a piston valve in a four-cycle gasoline engine in a corresponding method at the time of overlap.
FIG. 2 is a diagram illustrating the location from point d to point r in FIGS. 3 to 17 when a piston valve is used in a four-cycle gasoline engine, in accordance with the rotation of the crankshaft.
FIG. 3 is a longitudinal sectional view showing a process of a corresponding method at the time of overlap when a piston valve is used in a 4-cycle gasoline engine [immediately before the completion of the expansion process (point d = point r)].
FIG. 4 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a four-cycle gasoline engine [immediately after the start of the exhaust process (point e)].
FIG. 5 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a four-cycle gasoline engine [exhaust process middle (point f)].
FIG. 6 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a 4-cycle gasoline engine [middle exhaust process (point g)].
FIG. 7 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a four-cycle gasoline engine [immediately before the exhaust process is completed (point h)].
FIG. 8 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a 4-cycle gasoline engine [immediately after the start of an intake process (point i)].
FIG. 9 is a longitudinal sectional view showing a process of a corresponding method at the time of overlap when a piston valve is used in a 4-cycle gasoline engine [intake process middle (point j)].
FIG. 10 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a four-cycle gasoline engine [intake process middle (point k)].
FIG. 11 is a longitudinal sectional view showing a process of a method corresponding to an overlap when a piston valve is used in a four-cycle gasoline engine [intake process intermediate (point l)].
FIG. 12 is a longitudinal sectional view showing the steps of a method for dealing with an overlap when using a piston valve in a four-cycle gasoline engine [intake process middle (point m)].
FIG. 13 is a longitudinal sectional view showing a process of a method for dealing with an overlap when a piston valve is used in a 4-cycle gasoline engine [immediately before the completion of the intake process (point n)].
FIG. 14 is a longitudinal sectional view showing a process of a corresponding method at the time of overlap when a piston valve is used in a 4-cycle gasoline engine [immediately after the start of the compression process (point o)].
FIG. 15 is a longitudinal sectional view showing steps of a method for dealing with an overlap when a piston valve is used in a four-cycle gasoline engine {immediately before completion of the compression step [point p (ignition)]}.
FIG. 16 is a longitudinal sectional view showing a process of a corresponding method at the time of overlap when a piston valve is used in a 4-cycle gasoline engine [immediately after the start of the expansion process (point q)].
FIG. 17 is a longitudinal sectional view showing a process of a corresponding method at the time of overlap when a piston valve is used in a 4-cycle gasoline engine [just before completion of the expansion process (point r = point d)].
[Explanation of symbols]
1 Intake valve for air-fuel mixture (valve a)
2 Exhaust valve (valve b)
3 When moving from the last exhaust process (in this case, just the exhaust process) to the first intake process (in this case, just the intake process), the intake valve and exhaust valve dedicated to the mixture are opened simultaneously. At the time of overlap, without newly opening the intake valve dedicated to the mixture, newly installed the intake valve dedicated to air, opened it, closed the exhaust valve, then opened the intake valve dedicated to the mixture and newly installed The air-only intake valve closes between the time when the exhaust valve closes and the bottom dead center is reached (valve c)
4 Plaque 5 Vaporizer 6 Intake pipe 7 Exhaust pipe 8 Air-only intake pipe 9 Exhaust process 10 Intake process 11 Compression process 12 Expansion process 13 Overlap 14 Piston 15 Valve b and Valve c
Valve a Intake valve valve dedicated to air-fuel mixture b Exhaust valve valve c When moving from the last exhaust process (in this case, just the exhaust process) to the first intake process (in this case, just the intake process), When the air intake and exhaust valves for the air-fuel mixture are open at the same time. , The intake valve dedicated to the air-fuel mixture is opened, and the newly provided intake valve dedicated to the air is closed between the exhaust valve closing and the bottom dead center until the bottom dead center is reached. Point d = point r)]
e Point (immediately after starting the exhaust process)
f point (exhaust process middle)
g point (exhaust process middle)
h Point (immediately before the exhaust process is completed)
i point (immediately after the start of the intake process)
j points (mid-intake process)
k points (mid-intake process)
l point (middle of the intake process)
m points (middle of intake process)
n points (immediately before completion of the intake process)
o Point (immediately after starting the compression process)
p point [immediately before completion of compression process (ignition)]
q points (immediately after the start of the expansion process)
r point [just before completion of the expansion process (point r = point d)]
SS cross section

Claims (1)

4-cycle engine (4-cycle gasoline engine, 4-cycle diesel engine and in-cylinder 4-cycle gasoline engine), 6-cycle engine {[diesel engine and gasoline engine, 6-cycle engine (Japanese Patent Application No. 417964) . ] And [6-cycle diesel engine (1996 Patent Application No. 140582). ] And [6-cycle gasoline engine (1996 Patent Application No. 151453). ] And [In-cylinder injection 6-cycle gasoline engine (1996 Patent Application No. 172736). ]. }, 8-cycle engine {[8-cycle diesel engine (1997 Patent Application No. 91265)]. ] And [In-cylinder injection 8-cycle gasoline engine (1997 Patent Application No. 129090). ] And [8-cycle gasoline engine (1997 patent application No. 184308). ]. } Engine of 10 cycles or more [An engine of 10 cycles or more of a gasoline engine, a diesel engine and an in-cylinder injection gasoline engine (1997 Patent Application No. 274908). ] Piston valve (reciprocating valve), rotary valve {[Rotary valve instead of piston valve used in 4-cycle engines and 6-cycle engines (Japanese Patent Application No. 356145)). ] And [Rotary valve instead of reciprocating valve (1996 Patent Application No. 179726). ]. }, When moving from the last exhaust process (only exhaust process in the case of a 4-cycle engine) to the first intake process (only intake process in the case of a 4-cycle engine), the intake valve (In the case of a gasoline engine, the intake valve dedicated to the air-fuel mixture.), The intake port (the intake port dedicated to the air-fuel mixture in the case of a gasoline engine), the exhaust valve and the exhaust port are open at the same time. Without opening the intake valve and intake port, provide a new intake valve for air and intake port for air, open it, close the exhaust valve and exhaust port, open the intake valve and intake port, and newly install In addition, the air intake valve and the air intake port are closed between the exhaust valve and the exhaust port until the bottom dead center is reached (in the case of diesel engines and in-cylinder injection gasoline engines, the air Dedicated intake valve, air intake Even if the intake valve and intake port are combined, the same substance can be taken in. Also, 6-cycle gasoline engine, 8-cycle gasoline engine, 10-cycle gasoline engine, piston valve, rotary valve Even when a new air-conditioner is used, there is no need to provide a new air-only intake valve and air-only intake port, and the existing air-only intake valve and air-only intake port may be used together. To use the air intake port exclusively for the air, instead of using the air intake port and the air intake port of the same rotary valve, instead of using the air intake port and the rotary valve with the air intake port. , Creating a new mouth.)

Images