KR101530011B1 - Electronic governor actuator having mechanical return device - Google Patents

Electronic governor actuator having mechanical return device Download PDF

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Publication number
KR101530011B1
KR101530011B1 KR1020140012545A KR20140012545A KR101530011B1 KR 101530011 B1 KR101530011 B1 KR 101530011B1 KR 1020140012545 A KR1020140012545 A KR 1020140012545A KR 20140012545 A KR20140012545 A KR 20140012545A KR 101530011 B1 KR101530011 B1 KR 101530011B1
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KR
South Korea
Prior art keywords
governor
shaft
electronic governor
elastic member
engine
Prior art date
Application number
KR1020140012545A
Other languages
Korean (ko)
Inventor
전필선
김영완
배영우
최시영
Original Assignee
주식회사 한화
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Priority to KR1020140012545A priority Critical patent/KR101530011B1/en
Application granted granted Critical
Publication of KR101530011B1 publication Critical patent/KR101530011B1/en

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Abstract

The present invention relates to an actuator of an electronic governor having a mechanical return device, and more particularly, to an actuator of an electronic governor having a mechanical return device and, more particularly, And more particularly, to an actuator of an electronic governor having a mechanical return device for safely shutting off the fuel supply by the electromagnetic valve.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuator of an electronic governor having a mechanical return device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an actuator of an electronic governor having a mechanical return device and more particularly to an actuator of an electronic governor, To an actuator of an electronic governor having a mechanical return device which is capable of shutting off the fuel supplied to the engine by a mechanical mechanism for a stable stop of the engine when the engine is stopped.

The conventional mechanical governor generally includes a flywheel which is hinged to a camshaft and opens and closes in accordance with the centrifugal force of the camshaft, a governor sleeve which slides and receives the movement of the flywheel by a linear movement force, An idle spring which is brought into contact with the sleeve and which provides an elastic supporting force in a direction to unwind the fly weight, and a control rack connected to the governor sleeve and connected to the control rack for controlling the injection amount of the plunger pump, And a link mechanism for transmitting the force.

The governor configured as described above controls the fuel injection amount according to the load variation of the engine by using the principle that the flywheel is opened or closed by the centrifugal force that is changed while the camshaft is rotated by the rotational force transmitted from the crankshaft of the engine .

On the other hand, in the case of an electronic governor that controls an amount of fuel supplied to an engine by receiving an electronic signal with respect to the state of the engine, the amount of fuel is controlled using data collected by the ECU, .

However, if the power supplied to the electronic governor is suddenly shut off, the electronic governor can not shut off the fuel flowing into the engine, which may cause malfunction of the engine.

As a prior art related to this, there is a domestic registered patent No. 10-0268657 (an electronic burner of an electronically controlled fuel injection device, registered on July 14, 2000).

SUMMARY OF THE INVENTION It is an object of the present invention to provide an actuator of an electronic governor having a mechanical return device capable of shutting off the fuel supply using a mechanical mechanism even when sudden power supply is interrupted during operation of the electronic governor.

Another object of the present invention is to provide an electronic control device for an internal combustion engine in which an elastic member provided outside the Governor housing for operating the electronic governor to cut off fuel supply is provided with a shaft for adjusting the amount of fuel supplied to the engine, And an indicator for confirming that the fuel supply is cut off visually.

In order to solve the above problems,

The present invention relates to an electronic governor, comprising: a governor housing which forms a body of the electronic governor and is provided on a plate for installing the electronic governor; A movable bracket coupled to a distal end of a shaft extending outwardly from one side of the Governor housing, and a movable bracket coupled to the end of the shaft, And an elastic member connected to the movable bracket and the fixing bracket at both ends to elastically deform and resiliently rotate according to the rotation of the shaft.

An indicator protruding from an outer surface of the movable bracket; and a display unit displaying a scale corresponding to the amount of opening of the electronic governor near the indicator on the outer surface of the Governor housing.

The elastic member includes a rod connected to the fixed bracket by a hinge shaft, a cylinder connected to the movable bracket by a hinge shaft to insert a distal end of the rod, and an elastic spring provided inside the cylinder and elastically deformed by the rod. .

When the electronic governor is operated to supply fuel to the engine, the elastic member is compressively deformed in accordance with rotation of the shaft.

The elastic member elastically restores to rotate the shaft to an initial position when power supply to the electronic governor is interrupted.

According to the solution of the above problems,

The present invention has the effect of improving the operational stability and reliability of the engine because the electronic governor can shut off the fuel supply even if the power supply is suddenly interrupted during operation of the electronic governor.

When the electronic governor cuts off the fuel supply, the elastic member provided outside the Governor housing returns the shaft to the initial position to adjust the amount of fuel supplied to the engine, and the effect of visually confirming that the fuel supply is blocked have.

1 is a perspective view schematically showing an actuator of an electronic governor having a mechanical return device according to the present invention.
2 is a view showing a state in which an actuator of an electronic governor having a mechanical return device according to the present invention is in operation.
3 is a view showing a state in which an actuator of an electronic governor having a mechanical return device according to the present invention is stopped.
4 (a) to 4 (c) illustrate a process of switching from the state of FIG. 2 to the state of FIG. 3 as the power supply to the actuator of the electronic governor having the mechanical return device is stopped.

The present invention will now be described in detail with reference to the accompanying drawings.

Hereinafter, a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

And embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

1 is a perspective view schematically showing an actuator of an electronic governor having a mechanical return device according to the present invention.

1, an actuator of an electronic governor having a mechanical return device according to the present invention will be described. In the electronic governor, a body of the electronic governor is formed, and a plate 200 for installing the electronic governor The governor housing 100 is provided at an upper portion of the governor housing 100. The governor housing 100 is provided inside the governor housing 100 to adjust the amount of fuel supplied to the engine as the engine rotates, A movable bracket 310 coupled to a distal end of a shaft 120 extending outwardly from one side of the Governor housing 100 and a movable bracket 310 coupled to a distal end of the shaft 120 of the plate 200. [ And an elastic member 300 elastically deformed and elastically restored to the rotation of the shaft 120 by being connected to the movable bracket 310 and the fixing bracket at both ends thereof.

The shaft 120 is provided inside the Governor housing 100 so that the amount of fuel supplied to the engine is controlled or blocked by the rotation of the shaft 120. The shaft 120 is connected to one end of the governor housing 100 So as to protrude outward.

A movable bracket 310 is coupled to a distal end of a shaft 120 protruding to the outside of the Governor housing 100 so that the movable bracket 310 is rotated together with the rotation of the shaft 120.

The plate 200 is provided with a fixing bracket 330 and the movable bracket 310 and the fixing bracket 330 are disposed on a straight line perpendicular to the longitudinal direction of the shaft 120.

When the elastic member 300 is installed between the fixing bracket 330 and the fixing bracket 330 and the fuel is supplied from the governor, the movable bracket 310 is rotated to compress and deform the elastic member 300, When the power is cut off to the governor, the elastic member 300 is restored to a circular shape, and the shaft 120 inside the governor rotates as the movable bracket 310 rotates to block fuel supply.

The elastic member 300 includes a rod 340 connected to the fixed bracket 330 by a hinge axis and a hinge shaft 340 connected to the movable bracket 310 by a hinge shaft, And an elastic spring (not shown) provided inside the cylinder 350 and elastically deformed by the rod 340.

The elastic force of the elastic member 300, that is, the elastic force of the elastic spring, when the fuel is supplied to the engine by the operation of the electronic governor, the elastic spring is compressively deformed in accordance with the rotation of the shaft 120, The shaft 120 is resilient enough to return to the initial position, that is, to a position where fuel supply is interrupted in the electronic governor due to the elastic restoring force of the elastic spring.

The movable bracket 310 is provided with an indicator 320 protruding from the outer surface of the movable bracket 310. An outer surface of the governor housing 100 on which the distal end of the shaft 120 protrudes, And a display unit 110 having a scale for confirming the amount of opening of the electronic governor in accordance with the supply of fuel is provided near the indicator 320.

That is, when the electronic governor operates to supply the fuel, the rotation angle of the shaft 120 can be visually confirmed through the indicator 320 and the display unit 110 according to the amount of fuel supplied.

2 is a view showing a state in which an actuator of an electronic governor having a mechanical return device according to the present invention is in operation.

2 shows a state in which the fuel is being supplied by the electronic governor and the initial position of the indicator 320 is located on the left side of the display unit 110. In the state of FIG. 2, when the shaft 120 rotates, The indicator 320 provided on the display unit 310 is rotated to the right side of the display unit 110. In this state, it can be seen that the fuel is supplied to the engine at the maximum.

As the movable bracket 310 is rotated clockwise in the state where the fuel is being supplied, the distal end of the rod 340 is drawn into the cylinder 350 to compressively deform the elastic spring.

FIG. 3 is a view showing a state where an actuator of an electronic governor having a mechanical return device according to the present invention is stopped. FIGS. 4 (a) to 4 (c) 3 is a diagram illustrating a process of switching to the state of FIG. 3 as the power supply to one actuator of the electronic governor is stopped.

In the state of FIG. 2, when the power is cut off to the electronic governor, the fuel can be safely shut off even if there is no power supply.

This is because the power supply is interrupted and the shaft 120 is rotated in the counterclockwise direction, that is, the force capable of continuously compressing and deforming the elastic spring is removed, and FIGS. 4 (a) the elastic spring is elastically restored while pushing the rod 340 in the cylinder 350 while rotating the movable bracket 310 in the counterclockwise direction.

Accordingly, the shaft 120 is rotated in the counterclockwise direction to cut off the fuel supply inside the governor housing 100 to be in the state shown in FIG.

As described above, by using the actuator of the electronic governor provided with the mechanical return device according to the present invention, when the power is supplied and the fuel is supplied to or blocked from the engine, the power supply is abruptly cut off, It is possible to safely shut off the fuel by using the circular restoring force of the elastic spring.

It is also possible to visually confirm whether the fuel supply is safely shut off from the outside of the governor housing 100 through the indicator 320 provided on the movable bracket 310.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken as limitations. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Governor housing
110:
120: shaft
200: Plate
300: elastic member
310: movable bracket
320: Indicator
330: Fixed bracket
340: Load
350: cylinder

Claims (5)

In the electronic governor,
A governor housing which forms the body of the electronic governor and is provided on a plate for installing the electronic governor;
A shaft provided inside the Governor housing to adjust an amount of fuel supplied to the engine as the engine rotates, and a distal end portion extending outward from one side of the Governor housing;
A movable bracket coupled to a distal end of a shaft extending outwardly from one side of the Governor housing;
A fixing bracket installed on a distal end side of the shaft of the plate; And
And an elastic member connected to both the movable bracket and the fixed bracket and elastically deformed and elastically restored according to the rotation of the shaft. The method according to claim 1,
An indicator protruding from an outer surface of the movable bracket; And
And a display unit for displaying a scale according to an opening amount of the electronic governor in the outer surface of the Governor housing near the indicator. The method according to claim 1,
The elastic member
A rod connected to the fixing bracket by a hinge axis;
A cylinder connected to the movable bracket by a hinge shaft to insert a distal end of the rod; And
And an elastic spring provided in the cylinder and elastically deformed by the rod. The method according to claim 1,
The elastic member
Wherein when the electronic governor is operated to supply fuel to the engine, the elastic member is compressively deformed according to the rotation of the shaft. The method according to claim 1,
The elastic member
Wherein the actuator is elastically restored to rotate the shaft to an initial position when power is not supplied to the electronic governor.
KR1020140012545A 2014-02-04 2014-02-04 Electronic governor actuator having mechanical return device KR101530011B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140012545A KR101530011B1 (en) 2014-02-04 2014-02-04 Electronic governor actuator having mechanical return device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140012545A KR101530011B1 (en) 2014-02-04 2014-02-04 Electronic governor actuator having mechanical return device

Publications (1)

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KR101530011B1 true KR101530011B1 (en) 2015-06-19

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KR1020140012545A KR101530011B1 (en) 2014-02-04 2014-02-04 Electronic governor actuator having mechanical return device

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08284693A (en) * 1995-04-18 1996-10-29 Hitachi Constr Mach Co Ltd Construction equipment having governor
JP2581546B2 (en) * 1985-09-20 1997-02-12 シユタイル−ダイムレル−プ−フ・アクチエンゲゼルシヤフト Control device for injection type internal combustion engine
JPH11247671A (en) * 1998-03-04 1999-09-14 Yanmar Diesel Engine Co Ltd Electronic hydraulic governor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2581546B2 (en) * 1985-09-20 1997-02-12 シユタイル−ダイムレル−プ−フ・アクチエンゲゼルシヤフト Control device for injection type internal combustion engine
JPH08284693A (en) * 1995-04-18 1996-10-29 Hitachi Constr Mach Co Ltd Construction equipment having governor
JPH11247671A (en) * 1998-03-04 1999-09-14 Yanmar Diesel Engine Co Ltd Electronic hydraulic governor

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