CN109184923A - A kind of air inlet shutdown valve controling circuit and engine - Google Patents
A kind of air inlet shutdown valve controling circuit and engine Download PDFInfo
- Publication number
- CN109184923A CN109184923A CN201811039790.9A CN201811039790A CN109184923A CN 109184923 A CN109184923 A CN 109184923A CN 201811039790 A CN201811039790 A CN 201811039790A CN 109184923 A CN109184923 A CN 109184923A
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- switch
- air inlet
- valve
- coil
- engine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10255—Arrangements of valves; Multi-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The embodiment of the present invention proposes that a kind of air inlet turns off valve controling circuit and engine, is related to technical field of electric control.Applied to engine, engine includes motor and air inlet shut-off valve, and for engine application in cluster engine, it includes first switch and the second switch that air inlet, which turns off valve controling circuit, first switch is electrically connected with air inlet shut-off valve and a power supply, and second switch is electrically connected with air inlet shut-off valve, power supply and motor；First switch is used to be in closed state when abnormal conditions occurs in cluster engine, and then controls air inlet shut-off valve and be in closed state；Second switch, which is used to control power supply in the closure state in air inlet shut-off valve, to be stopped providing voltage to the motor, and then control motor cannot start.Air inlet shutdown valve controling circuit ensure that engine is unable to run air inlet shut-off valve in the closure state.
Description
Technical field
The present invention relates to technical field of electric control, turn off valve controling circuit in particular to a kind of air inlet and start
Machine.
Background technique
In oil extraction process, it will appear the gas occurred with petroleum liquid between oil reservoir, main component is methane.
The gas handling system that associated gas can enter diesel engine with air causes unexpected burning, and diesel engine is caused to press shutdown key
Afterwards, although having interrupted oil circuit, cause diesel engine cannot can since associated gas enters engine and air burning acting
By shutting down, when especially there is emergency, such as cannot timely reliable shutdown, will lead to that machine breakdown is serious to will affect the person
Safety, so the diesel engine chance for being applied to oil field installs air inlet shut-off valve additional on air inlet pipeline, it is ensured that in an emergency situation
Reliable shutdown.
Common air inlet shut-off valve obtain it is electric after, leaf valve moment closes, and starts mechanical self-locking device and form mechanical chain,
Leaf valve is kept to be in close state, cut-off outside air enters engine.But it is had to manually after air inlet shutdown valve events
Reset can just open, if operator forgets hand-reset air inlet shut-off valve, the fuel oil into body cannot burn, and will cause
Diesel oil leakage, cylinder, Remedy for Piston Damage, serious that entire engine can be made to scrap in cylinder.To avoid above situation, generally
Way be that adhesive sticker mark is pasted beside air inlet shut-off valve, inform that operator has to check for air inlet pass before booting
Disconnected valve, it is ensured that in open position, but this cannot be guaranteed operator every time and can remember and because of replacement operation personnel caused by
It is unexpected.
Summary of the invention
The purpose of the present invention is to provide a kind of air inlet shutdown valve controling circuit and engine, air inlet shut-off valve control electricity
Road ensure that engine is unable to run air inlet shut-off valve in the closure state.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows:
In a first aspect, the embodiment of the invention provides a kind of air inlets to turn off valve controling circuit, it is applied to engine, the hair
Motivation includes motor and air inlet shut-off valve, and the engine application includes in cluster engine, the air inlet shutdown valve controling circuit
First switch, second switch, the first switch are electrically connected with the air inlet shut-off valve and a power supply, the second switch with
The air inlet shut-off valve, the power supply and the motor are electrically connected；The first switch is used to occur in the cluster engine
It is in closed state when abnormal conditions, and then controls the air inlet shut-off valve and is in closed state；The second switch is used for
The air inlet shut-off valve controls the power supply in the closure state to be stopped providing voltage to the motor, and then controls the horse
Up to cannot start.
Further, the air inlet shut-off valve includes limit switch and first coil, one end of the first coil and institute
State first switch electrical connection, the other end of the first coil and the power electric connection, one end of the limit switch and institute
Power electric connection is stated, the other end of the limit switch is electrically connected with the second switch；The first coil is used for described
First switch controls the limit switch in the closure state and is in closed state, and then controls institute by the second switch
Stating motor cannot start.
Further, the first switch include the second coil and the first normally opened contact, one end of second coil with
The other end of the power electric connection, second coil is electrically connected with the second switch, and the one of first normally opened contact
End and the power electric connection, the other end of first normally opened contact are electrically connected with one end of the first coil；Described
Two coil passes through described for controlling first normally opened contact closure when abnormal conditions occurs in the cluster engine
One coil controls the limit switch closure.
Further, the second switch includes tertiary coil and the second normally-closed contact, one end of the tertiary coil with
The other end of the limit switch is electrically connected, and the other end of the tertiary coil and the power electric connection, described second is normally closed
One end of contact and the power electric connection, the other end of second normally-closed contact are electrically connected with the motor；The third
Coil is used to control second normally-closed contact in limit switch closure and disconnect, and then controls the power supply and stop to institute
It states motor and voltage is provided, cannot start in order to control the motor.
Further, the second switch further includes third normally-closed contact, one end of the third normally-closed contact with it is described
The other end of second coil is electrically connected, the other end of the third normally-closed contact and the power electric connection；The tertiary coil
It is disconnected for controlling the third normally-closed contact in limit switch closure, and then by described in second coil control
First normally opened contact disconnects, so that the first coil power loss.
Further, the second switch further includes the second normally opened contact, and the engine further includes alarm unit, described
One end of second normally opened contact and the power electric connection, the other end and the alarm unit of second normally opened contact are electrically connected
It connects；The tertiary coil is used to control the second normally opened contact closure in limit switch closure, and then described in control
Power supply provides voltage to the alarm unit, so that the alarm unit alert.
Further, the air inlet shutdown valve controling circuit further includes halt switch, the halt switch and the power supply
It is electrically connected with the first switch；The halt switch is used to be in closed form when abnormal conditions occurs in the cluster engine
State, and then control the first switch closure.
Further, the air inlet shutdown valve controling circuit further includes starting switch, described to start switch and the power supply
It is electrically connected with the second switch；It is described to start switch for described in the control when the air inlet shut-off valve is in an off state
Whether power supply controls whether the motor start to motor offer voltage.
Further, the first switch and the second switch are all made of relay.
Second aspect, the embodiment of the invention also provides a kind of engines, are applied to cluster engine, and the engine includes
Motor, air inlet shut-off valve and air inlet turn off valve controling circuit, and the air inlet shutdown valve controling circuit includes first switch, second opens
It closes, the first switch is electrically connected with the air inlet shut-off valve and the power supply, and the second switch and the air inlet turn off
Valve, the power supply and the motor are electrically connected；The first switch is used at when abnormal conditions occurs in the cluster engine
In closed state, and then controls the air inlet shut-off valve and be in closed state；The second switch is used to turn off in the air inlet
Valve controls the power supply in the closure state to be stopped providing voltage to the motor, and then is controlled the motor and stopped working.
A kind of air inlet shutdown valve controling circuit provided in an embodiment of the present invention and engine, the air inlet turn off valve controling circuit
Including first switch, second switch, first switch is electrically connected with the air inlet shut-off valve of engine and a power supply, second switch with
Air inlet shut-off valve, the motor of power supply and engine are electrically connected；First switch is used at when abnormal conditions occurs in cluster engine
In closed state, and then controls air inlet shut-off valve and be in closed state；Second switch is used to be in closed form in air inlet shut-off valve
It controls power supply when state to stop providing voltage to motor, and then control motor to start.As it can be seen that can sent out by first switch
There is control air inlet shut-off valve closure when abnormal conditions in motivation group, can end outside air and enter in engine, ensure that
The reliable shutdown of engine in abnormal conditions；Simultaneously air inlet shut-off valve closure when by second switch control power supply stop to
Motor provides voltage, and then prevents engine start；Want that engine start is allowed to work, air inlet shut-off valve is only reset to disconnection
When state, second switch can just control power supply and provide voltage to motor, and motor can normally start after obtaining voltage, and then start hair
Motivation work, can effectively solve operator and cause just have leakage, gas in cylinder when forgetting hand-reset air inlet shut-off valve
The problem of cylinder and Remedy for Piston Damage.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the structural block diagram of engine provided in an embodiment of the present invention；
Fig. 2 shows the structural block diagrams of air inlet provided in an embodiment of the present invention shutdown valve controling circuit；
Fig. 3 shows one of the circuit diagram of air inlet shutdown valve controling circuit provided in an embodiment of the present invention；
Fig. 4 shows the two of the circuit diagram of air inlet shutdown valve controling circuit provided in an embodiment of the present invention.
Icon: 1- engine；10- air inlet turns off valve controling circuit；11- first switch；The second coil of 111-；112- first
Normally opened contact；12- second switch；121- tertiary coil；The second normally-closed contact of 122-；123- third normally-closed contact；124- second
Normally opened contact；13- air inlet shut-off valve；131- first coil；132- limit switch；14- halt switch；15- is started switch；16-
Fuse；20- motor；30- power supply；40- alarm unit.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
As shown in Figure 1, being the structural block diagram of engine 1 provided in an embodiment of the present invention, the engine 1 is applied to power generation
Unit, the generating set include generator and power supply 30, and the engine 1 includes motor 20, air inlet shut-off valve 13 and air inlet
Valve controling circuit 10 is turned off, the air inlet shutdown valve controling circuit 10 is electrically connected with motor 20, air inlet shut-off valve 13 and power supply 30
It connects, the power supply is electrically connected with the generator, motor 20 and air inlet shut-off valve 13.The motor 20 is used to open when obtaining electric
It moves the engine 1 to work, so that engine 1 provides kinetic energy to generator；The air inlet shutdown valve controling circuit 10 is used
In being in close state the air inlet pipeline of engine 1, so that cluster engine
It can reliably stop working；It is also used to when air inlet shut-off valve 13 is in close state, control power supply 30 stops to motor 20
Voltage is provided, and then control engine 1 to start work.
As shown in Fig. 2, air inlet shutdown valve controling circuit 10 includes first switch 11, second switch 12, described first
Switch 11 is electrically connected with the air inlet shut-off valve 13 and the power supply 30, the second switch 12 and the air inlet shut-off valve
13, the power supply 30 and the motor 20 are electrically connected.
In the present embodiment, the first switch 11 is used to be in closed form when abnormal conditions occurs in the cluster engine
State, and then control the air inlet shut-off valve 13 and be in closed state；The second switch 12 is used in the air inlet shut-off valve 13
It controls the power supply 30 in the closure state to stop providing voltage to the motor 20, and then control the motor 20 to open
It is dynamic.
In the present embodiment, the air inlet shut-off valve 13 is mounted on the air inlet pipeline of the engine 1, and the air inlet is closed
Disconnected valve 13 will start mechanical self-locking device in the closure state and form mechanical chain, even if so that air inlet shut-off valve 13 is first
Switch 11, which is in an off state, will also keep closed state, and cut-off outside air enters engine 1, so that engine 1
It can reliably stop working.
As shown in figure 3, the air inlet shut-off valve 13 includes limit switch 132 and first coil 131, the first coil
131 one end is electrically connected with the first switch 11, and the other end of the first coil 131 is electrically connected with the power supply 30, institute
The one end for stating limit switch 132 is electrically connected with the power supply 30, the other end of the limit switch 132 and the second switch 12
Electrical connection.
In the present embodiment, the first coil 131 is used to control institute in the closure state in the first switch 11
It states limit switch 132 and is in closed state, and then control the motor 20 by the second switch 12 to start.
It is appreciated that first switch 11 in the closure state, first coil 131 obtain power supply 30 offer voltage meeting
Magnetic field is generated, limit switch 132 becomes closed state from off-state under the magnetic fields that first coil 131 generates, in turn
Cut-off outside air enters engine 1.
The first switch 11 includes the second coil 111 and the first normally opened contact 112, one end of second coil 111
It is electrically connected with the power supply 30, the other end of second coil 111 is electrically connected with the second switch 12, and described first is normally opened
One end of contact 112 is electrically connected with the power supply 30, the other end of first normally opened contact 112 and the first coil 131
One end electrical connection.
In the present embodiment, second coil 111 is used for when abnormal conditions occurs in the cluster engine described in control
First normally opened contact 112 closure, and then the limit switch 132 is controlled by the first coil 131 and is closed.
It is appreciated that the voltage that the second coil 111 obtains the offer of power supply 30 can produce when abnormal conditions occurs in cluster engine
Magnetisation field, the first normally opened contact 112 is closed under the action of the magnetic field that the second coil 111 generates, so that first coil 131
The voltage of the offer of power supply 30 is provided.
The second switch 12 includes tertiary coil 121 and the second normally-closed contact 122, one end of the tertiary coil 121
It is electrically connected with the other end of the limit switch 132, the other end of the tertiary coil 121 is electrically connected with the power supply 30, institute
The one end for stating the second normally-closed contact 122 is electrically connected with the power supply 30, the other end of second normally-closed contact 122 and the horse
Up to 20 electrical connections.
In the present embodiment, the tertiary coil 121 is used to control described second often in the limit switch 132 closure
Closed contact 122 disconnects, and then controls the power supply 30 and stop providing voltage to the motor 20, in order to control the motor 20
It cannot start.
It is appreciated that the tertiary coil 121 obtains the voltage of the offer of power supply 30 in the limit switch 132 closure
Magnetic field can be generated, the second normally-closed contact 122 goes off shape by closed state under the magnetic fields that tertiary coil 121 generates
State, and then control power supply 30 and stop providing voltage to motor 20, stop start in order to control the motor 20, motor 20 is not
Engine 1 can not be started when can start and enter working condition.
Further, in the present embodiment, the second switch 12 further includes third normally-closed contact 123, and the third is normal
One end of closed contact 123 is electrically connected with the other end of second coil 111, the other end of the third normally-closed contact 123 with
The power supply 30 is electrically connected.
The tertiary coil 121 is used to control the third normally-closed contact 123 in the limit switch 132 closure disconnected
It opens, and then first normally opened contact 112 is controlled by second coil 111 and is disconnected, so that the first coil 131 is lost
Electricity.
In the present embodiment, air inlet shut-off valve 13 in the closure state while being closed (i.e. limit switch 132), third line
121 control third normally-closed contacts 123 of circle disconnect, so that 111 power loss of the second coil, it is generated after 111 power loss of the second coil
Magnetic field can disappear, the first normally opened contact 112 without the second coil 111 magnetic field under the action of can be in an off state, in turn
So that 131 power loss of first coil, since air inlet shut-off valve 13 has mechanical self-locking device, even if 131 power loss of first coil, limit
Switch 132 will also keep closed state, and air inlet shut-off valve 13 can just be made to be in disconnected only by way of hand-reset
Open state.It ensure that air inlet shut-off valve 13 will not influence the use longevity of air inlet shut-off valve 13 because long-time is in energized state
Life.
Further, in the present embodiment, the second switch 12 further includes the second normally opened contact 124, the engine 1
It further include alarm unit 40, one end of second normally opened contact 124 is electrically connected with the power supply 30, second normally opened contact
124 other end is electrically connected with the alarm unit 40.
The tertiary coil 121 is used to control second normally opened contact 124 in the limit switch 132 closure and close
It closes, and then controls the power supply 30 and provide voltage to the alarm unit 40, so that the alarm unit 40 issues alarm signal
Breath.
In the present embodiment, the alarm unit 40 can use warning light, be in closed state in air inlet shut-off valve 13
When (limit switch 132 is in the closure state), warning light can then issue light prompt information, to remind operator to know
Air inlet shut-off valve 13 at this time is in closed state.
Further, as shown in figure 4, air inlet shutdown valve controling circuit 10 further includes halt switch 14, the shutdown
Switch 14 is electrically connected with the power supply 30 and the first switch 11.
The halt switch 14 is used to be in closed state when abnormal conditions occurs in the cluster engine, and then controls institute
State the closure of first switch 11.
In the present embodiment, if the cluster engine is in abnormal conditions, operator can be carried out halt switch 14
Pressing operation, so that the operation that halt switch 14 responds operator becomes closed state from off-state, so that the second coil
111 it is electric, the second coil 111 it is electric after can control the first normally opened contact 112 closure.
In the present embodiment, multiple halt switches 14 can be set according to the cluster engine abnormal conditions, for for not
Same abnormal conditions control the shutdown of engine 1 respectively.For example, if can be correspondingly arranged hypervelocity when abnormal conditions are that hypervelocity is abnormal and stop
Machine switch 14；If abnormal conditions are urgent abnormal, emergency stop switch 14 can be correspondingly arranged.
Further, in the present embodiment, air inlet shutdown valve controling circuit 10 further includes starting switch 15, described to open
Dynamic switch 15 is electrically connected with the power supply 30 and the second switch 12.
In the present embodiment, described to start switch 15 for controlling institute when the air inlet shut-off valve 13 is in an off state
Power supply 30 is stated whether to the motor 20 offer voltage, and then controls whether the motor 20 starts.
It is appreciated that operator can control horse by starting switch 15 when engine 1 is in normal operating conditions
Whether start up to 20, and then controls whether that starting engine 1 works.If desired engine 1 works, then operator opens starting
It closes 15 and carries out pressing operation, so that starting switch 15 in closed state, and then control power supply 30 and provide voltage to motor 20, into
And it controls engine 1 and starts work.
Further, in the present embodiment, the air inlet shutdown valve controling circuit 10 further includes fuse 16, the fusing
One end of device 16 is electrically connected with power supply 30, one end of the first normally opened contact 112 of the other end and first switch 11 of fuse 16
Electrical connection.
The fuse 16 is used to carry out short circuit or overcurrent protection to air inlet shutdown valve controling circuit 10.
In the present embodiment, the first switch 11 and the second switch 12 are all made of relay.
In the present embodiment, the engine 1 can use diesel engine 1.
In conclusion air inlet shutdown valve controling circuit provided in an embodiment of the present invention and engine, the air inlet shut-off valve control
Circuit processed includes first switch, second switch, and first switch is electrically connected with the air inlet shut-off valve and power supply of engine, and second opens
Pass is electrically connected with power supply, the air inlet shut-off valve of engine and motor；First switch is used to abnormal conditions occur in cluster engine
When be in closed state, and then control air inlet shut-off valve be in closed state；Second switch is used to be in air inlet shut-off valve and close
It controls power supply when conjunction state to stop providing voltage to motor, and then control motor to start.As it can be seen that can be with by first switch
Air inlet shut-off valve closure is controlled when abnormal conditions occurs in cluster engine, can end outside air and enter in engine, is protected
The reliable shutdown of the engine in abnormal conditions is demonstrate,proved；Power supply is controlled by second switch in air inlet shut-off valve closure simultaneously to stop
Voltage only is provided to motor, and then prevents engine start, wants that engine start is allowed to work, is only reset to air inlet shut-off valve
When off-state, second switch can just control power supply and provide voltage to motor, and motor can normally start after obtaining voltage, Jin Erqi
Dynamic engine operation, can effectively solve operator and cause just to let out in cylinder when forgetting hand-reset air inlet shut-off valve
The problem of dew, cylinder and Remedy for Piston Damage.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
Claims (10)
1. a kind of air inlet turns off valve controling circuit, it is applied to engine, the engine includes motor and air inlet shut-off valve, described
Engine application is in cluster engine, which is characterized in that and the air inlet shutdown valve controling circuit includes first switch and the second switch,
The first switch is electrically connected with the air inlet shut-off valve and a power supply, the second switch and the air inlet shut-off valve, institute
It states power supply and the motor is electrically connected；
The first switch is used to be in closed state when abnormal conditions occurs in the cluster engine, and then controls the air inlet
Shut-off valve is in closed state；
The second switch stops for controlling the power supply in the closure state in the air inlet shut-off valve to the motor
Voltage is provided, and then control the motor to start.
2. air inlet as described in claim 1 turns off valve controling circuit, which is characterized in that the air inlet shut-off valve includes that limit is opened
It closes and first coil, one end of the first coil is electrically connected with the first switch, the other end of the first coil and institute
State power electric connection, one end of the limit switch and the power electric connection, the other end of the limit switch and described the
Two switch electrical connections；
The first coil is in closed state for controlling the limit switch in the closure state in the first switch,
And then it cannot be started by the second switch control motor.
3. air inlet as claimed in claim 2 turns off valve controling circuit, which is characterized in that the first switch includes the second coil
With the first normally opened contact, one end of second coil and the power electric connection, the other end of second coil with it is described
Second switch electrical connection, one end of first normally opened contact and the power electric connection, first normally opened contact it is another
End is electrically connected with one end of the first coil；
Second coil is for controlling the first normally opened contact closure when abnormal conditions occurs in the cluster engine, in turn
The limit switch closure is controlled by the first coil.
4. air inlet as claimed in claim 3 turns off valve controling circuit, which is characterized in that the second switch includes tertiary coil
With the second normally-closed contact, one end of the tertiary coil is electrically connected with the other end of the limit switch, the tertiary coil
The other end and the power electric connection, one end of second normally-closed contact and the power electric connection, the second normally closed touching
The other end of point is electrically connected with the motor；
The tertiary coil is used to control second normally-closed contact in limit switch closure and disconnect, and then described in control
Power supply stops providing voltage to the motor, cannot start in order to control the motor.
5. air inlet as claimed in claim 4 turns off valve controling circuit, which is characterized in that the second switch further includes that third is normal
Closed contact, one end of the third normally-closed contact are electrically connected with the other end of second coil, the third normally-closed contact
The other end and the power electric connection；
The tertiary coil is used to control the third normally-closed contact in limit switch closure and disconnect, and then by described
Second coil controls first normally opened contact and disconnects, so that the first coil power loss.
6. air inlet as claimed in claim 4 turns off valve controling circuit, which is characterized in that the second switch further includes second normal
Contact is opened, the engine further includes alarm unit, one end of second normally opened contact and the power electric connection, and described the
The other end of two normally opened contacts is electrically connected with the alarm unit；
The tertiary coil is used to control the second normally opened contact closure in limit switch closure, and then described in control
Power supply provides voltage to the alarm unit, so that the alarm unit alert.
7. air inlet as described in claim 1 turns off valve controling circuit, which is characterized in that the air inlet shutdown valve controling circuit is also
Including halt switch, the halt switch is electrically connected with the power supply and the first switch；
The halt switch is used to be in closed state when abnormal conditions occurs in the cluster engine, and then controls described first
It closes the switch.
8. air inlet as described in claim 1 turns off valve controling circuit, which is characterized in that the air inlet shutdown valve controling circuit is also
Including starting switch, described start switch is electrically connected with the power supply and the second switch；
It is described to start switch for whether controlling the power supply when the air inlet shut-off valve is in an off state to the motor
Voltage is provided, and then controls whether the motor starts.
9. air inlet as described in claim 1 turns off valve controling circuit, which is characterized in that the first switch and described second is opened
Pass is all made of relay.
10. a kind of engine is applied to cluster engine, which is characterized in that including motor, air inlet shut-off valve and such as claim 1-
Air inlet described in 9 Arbitrary Terms turns off valve controling circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039790.9A CN109184923B (en) | 2018-09-06 | 2018-09-06 | Air inlet shutoff valve control circuit and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039790.9A CN109184923B (en) | 2018-09-06 | 2018-09-06 | Air inlet shutoff valve control circuit and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184923A true CN109184923A (en) | 2019-01-11 |
| CN109184923B CN109184923B (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811039790.9A Active CN109184923B (en) | 2018-09-06 | 2018-09-06 | Air inlet shutoff valve control circuit and engine |
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| Country | Link |
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| CN (1) | CN109184923B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523905A (en) * | 2019-09-17 | 2021-03-19 | 现代自动车株式会社 | Intake device for internal combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58131339A (en) * | 1982-01-29 | 1983-08-05 | Toyota Motor Corp | Method for stopping operation of diesel engine |
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| CN103742328A (en) * | 2013-12-26 | 2014-04-23 | 柳州正菱集团有限公司 | Method for protecting engine starting motor |
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| JPS58131339A (en) * | 1982-01-29 | 1983-08-05 | Toyota Motor Corp | Method for stopping operation of diesel engine |
| JP2009299639A (en) * | 2008-06-17 | 2009-12-24 | Nikki Co Ltd | Throttle valve control device |
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| CN202100334U (en) * | 2011-06-17 | 2012-01-04 | 东风汽车股份有限公司 | Mining explosion-proof diesel engine stop device |
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| CN112523905A (en) * | 2019-09-17 | 2021-03-19 | 现代自动车株式会社 | Intake device for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109184923B (en) | 2020-06-26 |
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