KR200368688Y1 - Control valve of starting air valve for marine engine - Google Patents

Abstract

The present invention relates to a control valve to a starting air valve for a ship engine. More specifically, when a high speed starting air is injected into a cylinder from a starting air valve installed above a cylinder block of a ship engine when the first ship engine is driven, As the cylinder is compressed and fuel is injected and exploded, the first engine is driven. The conventional starting air valve is equipped with a plurality of intake or exhaust valves for opening and closing the starting air, so that the number of valves for opening and closing each port There are many problems that are complicated and difficult to operate, but the present invention provides an air control valve having a plurality of ventilation flow paths so that each port of the starting air valve can be controlled at one time.

Description

CONTROL VALVE OF STARTING AIR VALVE FOR MARINE ENGINE

The present invention relates to a control valve of a starting air valve for a ship engine. More specifically, when a high speed starting air is injected into a cylinder from a starting air valve installed above a cylinder block of a ship engine when the first ship engine is driven, As the cylinder is compressed and fuel is injected and exploded, the first engine is driven to provide a control valve for operating the starting air valve.

The conventional air engine starting air valve is complicated in structure because each air port must be equipped with an intake or exhaust air valve for each port to open and close the starting air injected into the cylinder of the ship engine. There was a problem that the operation to open and close the

The present invention has been made to solve the conventional problems as described above in order to be able to control each port of the starting air valve at a time, to configure an air control valve having a plurality of air flow passages, based on the accompanying drawings In more detail,

1 is a perspective view of a control valve of the present invention

2 is a cross-sectional view of the control valve of the present invention

Figure 3 is an exploded perspective view cut the control valve block of the present invention

4 is an exploded perspective view illustrating the internal parts of the control valve of the present invention.

Figure 5 is a state of use mounted on the starting air valve for the ship engine of the present invention

6 is an exemplary cross-sectional view shown in another direction of FIG.

* Explanation of code for main parts of drawing *

1, 1a, 2, 2a, 3, 3a, 4, 4a, 5, 5a, 6: air communication flow path

A1, A2, A3, A4: Air chamber

A: Control valve A: Control pressure

B: Starting air valve B: Atmospheric pressure

C: Marine Engine C: Starting Air

Ho: Housing Co: Cover

Ri: ring Pi1, Pi2, Pi3: piston

Sd: Spindle C1: Through Hole

C2: communication path Cu: cup

Di: Disc Sh: Axis

Sp: Spring St: Spigot

Sn: Snap ring Nu: Nut

Bo: Bolt

In the known air engine starting air valve for opening and closing the starting air (C) flowing from the outside to the cylinder block of the ship engine (C),

The first flow passage 1a into which the atmospheric pressure B is introduced into the starting air valve b, the second flow passage 2a to open the air valve, the third flow passage 3a to close the air valve, and the remaining Fourth passage (4a) and the fifth passage (5a) for discharging the air to the outside are respectively configured to be in communication with the upper control valve (a),

The control valve (A) has upper and lower air chambers (A1), (A2), (B1) and (B2), respectively, on both sides of the main body to communicate with the lower air chamber (A2) on the right side and the upper air chamber (B1) on the left side. To the first flow passage 1, the second flow passage 2 connected to the upper air chamber A1 and the lower air chamber A2 on the right side, and the upper air chamber B1 and the lower air chamber B2 on the left side. The channel 3 connected to the third channel 3, the channel 4 connected to the upper air chamber A1 on the right side, and the channel 5 5 connected to the lower air chamber B2 on the left side, respectively. ,

In the upper and lower air chambers A1, A2, B1, and B2 of the two sides, the upper side is equipped with the Piton Pi1, the lower side is arranged between the shafts Sh by arranging the cup Cu, and the lower side. The cup Cu is installed with a piston Sp so that the piston Pi1 and Pi2 are always elevated upward, and the upper air chamber A1 on the right side and the upper air chamber B1 on the left side are piston Pi1. (Pi2) to provide a control valve of the starting valve for the lathe engine comprising an inlet for injecting the control pressure (A) into the upper air chamber (A1) on the right side of the communication passage (6).

That is, the structure of the starting air valve (B) is arranged between the spindle (Sd) and the shaft (Sh) by arranging the piston (Pi3) in the inner cylinder of the upper side of the housing (Ho) coupled with the cover (Co) and the ring (Ri) Coupling, the piston (Pi3) is constructed so that the piston (Pp) in the bottom surface is always raised to the piston (Pi3), and the lower portion of the housing (Ho) is a plurality of through holes (C1) of the ship engine (C) In the known communication with the inlet of the starting air (C) which is supplied from the outside, the starting air (C) is introduced into the engine when the spindle is lowered, and stopped when the spindle is raised,

Referring to each air communication flow path of the starting air valve (b), first flow path (1a) constitutes an input path through which the external atmospheric pressure (B) is introduced, the first flow path (1) of the control valve (A) The second flow path 2a is formed on the upper side of the piston Pi3, and the air pressure discharged from the second flow path 2 of the control valve A lowers the piston Pi3 so that the spindle Sd ) To open the starting air (C) of the first ship engine (C), the third flow path (3a) is communicated to the lower side of the piston (Pi3), the third flow path of the control valve (A) (3) ), The air pressure discharged from the pump raises the piston Pi3 to close the opened spindle Sd again, and the 4th flow path 4a and the 5th flow path 5a are just exposed to the outside and the control valve ) Is used to discharge the remaining air to the outside

In addition, the structure of the control valve (A) is coupled to the upper cover (Co) of the housing (Ho) with a bolt (Bo), the lower part is fixed to the stopper (St) by the snap ring (Sn) left, right, up and down Each air chamber A1 (A2) (B1) (B2) is provided, and two pistons Pi1 (Pi2) are disposed in the upper air chambers A1 and B1, respectively, and the lower air chambers ( A2) (B2) is provided with a cup (Cu), which serves as the piston, and is equipped with a disk (Di) that blocks each communication path, and is coupled between the shaft (Sh) with a nut (Nu), but the lower cup (Cu) ) Is constructed so that the piston Pi1 (Pi2) is always raised and lowered by sprinkling the spring Sp on the bottom,

Normally (when the air valve is not operated), the air pressure is always filled through the 1st flow path (1), and this air pressure is discharged to the 3rd flow path (3) while raising the piston (Pi2) on the left side. During operation (when operating the air valve), if the control pressure (A) higher than the air pressure filled in the inlet on the right side is input, the piston (1) on the right is lowered and the left side through the communication passage (6). Piston (Pi2) is also lowered at this time, the air going through the first flow path (1) to the third flow path (3) is blocked and is operated to fall into the second flow path (2).

Therefore, if this is explained in connection with the starting air valve (B) and the control valve (B) installed in the ship engine (C), the atmospheric pressure (B) supplied to the inlet of the air valve (B) is 1 euro. The air pressure supplied to channel 3 (3) of the control valve (A) and discharged to channel 3 (3) through the (1a), and then supplied to the channel 3 (3a) of the air valve (B) is a piston The spindle Sd is always closed by raising (Pi3), and the starting air (C) of the ship engine (C) also communicates with the upper part through the through hole (D1) of the housing (H) of the air valve (B). It is put into the ball D2, and the piston Pi3 is always raised and lowered together with the spring Sp.

On the other hand, in operation, when the control pressure (A) inlet of the control valve (A) is supplied with a control pressure (A) of air higher than atmospheric pressure (B), both the right piston Pi1 and the left piston Pi2 are lowered. As passages of passage 1 (1) (1a) to passage 3 (3) (3a) are blocked, and passages of passage 1 (1) (1a) to passage 2 (2) (2a) open, When atmospheric pressure (B) is supplied to the second flow path (2a) of the starting air valve (B) and the piston (Pi3) of the air valve (B) is lowered, the spindle (Sd) is opened and the starting air (C) is turned into the lathe engine. As it is supplied to the cylinder of (C), the initial engine is driven. At this time, the air pressure in the air chamber B2 at the lower left is 4, while both pistons Pi1 and Pi2 of the control valve are lowered. (4) (4a) is discharged to the outside, the air pressure in the air chamber (A1) of the upper right also returned to the normal state when the operation is finished, also through the flow path (5) (5a) Discharge To work

The present invention configured as described above is equipped with a plurality of valves that open and close ports individually in the starting air valve as in the prior art, so that the control device of the present invention can be controlled all without the need to operate each valve separately, thereby simplifying the structure. There is an advantage that can increase the ease of use.

Claims (1)

In the known air engine starting air valve for opening and closing the starting air (C) flowing from the outside to the cylinder block of the ship engine (C), The first flow passage 1a into which the atmospheric pressure B is introduced into the starting air valve b, the second flow passage 2a to open the air valve, the third flow passage 3a to close the air valve, and the remaining Fourth passage (4a) and the fifth passage (5a) for discharging the air to the outside are respectively configured to be in communication with the upper control valve (a), The control valve (A) has upper and lower air chambers (A1), (A2), (B1) and (B2), respectively, on both sides of the main body to communicate with the lower air chamber (A2) on the right side and the upper air chamber (B1) on the left side. To the first flow passage 1, the second flow passage 2 connected to the upper air chamber A1 and the lower air chamber A2 on the right side, and the upper air chamber B1 and the lower air chamber B2 on the left side. The channel 3 connected to the third channel 3, the channel 4 connected to the upper air chamber A1 on the right side, and the channel 5 5 connected to the lower air chamber B2 on the left side, respectively. , In the upper and lower air chambers A1, A2, B1, and B2 of the two sides, the upper side is provided with the Piston Pi1, and the lower side is coupled between the shafts Sh by arranging the cup Cu. The cup Cu is installed with a spring Sp, so that the piston Pi1 and Pi2 are always elevated upwards, The upper air chamber A1 on the right side and the upper air chamber B1 on the left side constitute a communication passage 6 communicating with the piston Pi1 and Pi2, and control pressure is applied to the upper air chamber A1 on the right side. Control valve of the starting valve for a lathe engine consisting of an inlet for injecting (A)