CN109184960A - Self closing door control system, control method and the gasoline engine of gasoline engine - Google Patents
Self closing door control system, control method and the gasoline engine of gasoline engine Download PDFInfo
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- CN109184960A CN109184960A CN201811240186.2A CN201811240186A CN109184960A CN 109184960 A CN109184960 A CN 109184960A CN 201811240186 A CN201811240186 A CN 201811240186A CN 109184960 A CN109184960 A CN 109184960A
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- pawl
- gasoline engine
- axle
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- 239000003502 gasoline Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims description 14
- 238000004146 energy storage Methods 0.000 claims abstract description 4
- 230000004044 response Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 31
- 230000007246 mechanism Effects 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims 2
- 230000006872 improvement Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
- F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
Abstract
The present invention provides a kind of self closing door control systems of gasoline engine, gasoline engine includes carburetor and the cylinder for connecting carburetor, carburetor is provided with throttle, inlet channel is equipped between carburetor and cylinder, inlet channel has air inlet, self closing door control system includes choke, drive the power unit of choke, it connects the controller of power unit and connects the temperature detecting unit of controller, choke is used to open or closes air inlet, power unit includes steering engine, choke connects elastic element, temperature detecting unit is used to detect the temperature of cylinder, when the temperature detected is lower than preset temperature, controller control steering engine drives choke to be rotated in a first direction to close air inlet, elastic element energy storage, Unscrew first predetermined angle of the throttle in response to choke；Gasoline starting makes throttle open the second predetermined angle, and the release of elastic element elastic force drives choke to open air inlet.
Description
Technical field
The present invention relates to self closing door control system, control method and the gasoline engines of a kind of gasoline engine.
Background technique
Currently used for the gasoline engine of garden instrument, gas handling system include air filter, choke, carburetor, air inlet pipe with
And the components such as valve, main function are that air and fuel are mixed into incendivity by the vaporization of carburetor according to a certain percentage
Gas, combustion chamber is entered by inlet channel.The gas handling system of the prior art is that air is entered by air filter and choke
The aditus laryngis of carburetor, air filter played air filtering, and choke enters the air mass flow of carburetor for regulation and control
Effect, carburetor has a device for adjusting and entering aditus laryngis fuel flow at the aditus laryngis of carburetor, air and fuel oil and in aditus laryngis
Place, since Venturi tube effect makes fuel gasification and mixes with air into combustion mixture, this combustion mixture and then passing through
Oily device and admission line and inlet valve eventually enter into combustion chamber.
When Portable gasoline engine starts, especially when environment temperature is lower, to need to inhale convenient for starting up gasoline engine
The fuel concentration entered in the indoor fuel mixture that burns increases, i.e., on the one hand needs to increase the fuel flow of carburetor, another
Aspect then needs to reduce the air capacity of sucking carburetor.
Currently, generally being adopted manually using the engine of pre-oiling valve carburettor in engine start on the market
Choke is closed, pre-add throttle is opened, increases the gasoline concentration in engine, facilitates the starting of engine.Its is complicated for operation, and
It is inconvenient.
Summary of the invention
The purpose of the present invention is to provide a kind of easy to operate self closing door control systems for gasoline engine.
Another object of the present invention is to provide a kind of easy to operate gasoline engines.
A further object of the present invention is to provide a kind of self closing door control methods of gasoline engine.
For achieving the above object, the present invention provides a kind of self closing door control system of gasoline engine, the gasoline
Machine includes carburetor and the cylinder for connecting carburetor, and the carburetor is provided with throttle, sets between the carburetor and cylinder
There is inlet channel, the inlet channel has air inlet, and the self closing door control system includes choke, driving choke
Power unit, the controller for connecting power unit and the temperature detecting unit for connecting controller, the choke are used to open
Or the air inlet is closed, the power unit includes steering engine, and the choke connects elastic element, the temperature detecting unit
For detecting the temperature of the cylinder, when the temperature detected is lower than preset temperature, the controller is controlled described in steering engine drive
Choke is rotated in a first direction to close the air inlet, and the elastic element energy storage, the throttle is in response to the choke
The first predetermined angle of Unscrew of door；The gasoline starting makes the throttle open the second predetermined angle, the elasticity member
The release of part elastic force drives the choke to open the air inlet.
As the further improvement of an embodiment of the present invention, the power unit further includes the driver driven by steering engine
Structure, the transmission mechanism includes the second spur gear for connecting the first spur gear of steering engine and engaging with the first spur gear, described
Second spur gear drives the choke to rotate along same axis.
As the further improvement of an embodiment of the present invention, the transmission mechanism further includes by the second spur gear band
Dynamic axle of the air door, the choke are connected on the axle of the air door, and the throttle is connected on throttle axis, second spur gear
Air door is driven to close by axle of the air door；The axle of the air door drives the rotation of throttle axis to open throttle by driving structure.
As the further improvement of an embodiment of the present invention, the driving structure includes being fixedly connected on axle of the air door
First pawl and the second pawl being fixedly connected on institute's throttle axis, first pawl are rotated with axle of the air door to drive described second
Pawl, second pawl drive the rotation of throttle axis, the gasoline starting, and the throttle axis rotation increases to the accelerator open degree
Not less than the second predetermined angle, second predetermined angle is greater than first predetermined angle, and second pawl is in the throttle
It is separated under the drive of axis with first pawl, the elastic element acts on first pawl and axle of the air door is driven to make the choke
Open the air inlet.
As the further improvement of an embodiment of the present invention, throttle spring, the throttle are connected on the throttle axis
Spring provides the throttle axis and drives the throttle by the elastic force of open position to closed position.
As the further improvement of an embodiment of the present invention, the axle of the air door is equipped with and extends radially through the axle of the air door
Fluting, the choke is mounted in the fluting.
The present invention also provides a kind of self closing door control systems of gasoline engine, including being used to open or closing air inlet
Choke, the power unit for driving choke, the controller for connecting power unit and the throttle for being set to carburetor, the resistance
Air door connects reset element, and the controller control power unit drives the choke to be rotated in a first direction described in closing
The single-direction transmission that air inlet, the choke and throttle establish first direction under the action of power unit connects, the throttle
The first predetermined angle is opened, the choke, which is limited, to be rotated in the second direction opposite to the first direction；The throttle is opened
Second predetermined angle, the choke and the single-direction transmission of throttle connect disconnection, and the reset element drives the choke edge
Second direction is rotated to open the air inlet.
As the further improvement of an embodiment of the present invention, the power unit includes steering engine, by the biography of steering engine drive
Motivation structure and the axle of the air door for being connected to transmission mechanism, the air door are mounted on the axle of the air door, and the transmission mechanism is along institute
It states first direction and the axle of the air door is sequentially connected, and be detached from be driven with the axle of the air door within a preset range in a second direction
Connection.
As the further improvement of an embodiment of the present invention, the transmission mechanism includes the first commutating tooth driven by steering engine
The end face of wheel and the second spur gear engaged with the first spur gear, second spur gear is equipped with limiting slot, the axle of the air door
One end connect driving member, the driving member is set in the limiting slot and can be along relatively described second commutating tooth of limiting slot
Wheel rotation, second spur gear, which is rotated in a first direction, drives the axle of the air door rotation by the driving member；Described second
Spur gear in a second direction correspond to the limiting slot preset range in rotate, the driving member in the limiting slot with
The second spur gear relative motion.
As the further improvement of an embodiment of the present invention, the throttle is connected on throttle axis, the choke and
Driving structure is set between the throttle；The choke and the driving structure link and drive throttle axis by driving structure
It rotates so that throttle opens the first predetermined angle.
As the further improvement of an embodiment of the present invention, the driving structure includes being fixedly connected on axle of the air door
First pawl and the second pawl being fixedly connected on the throttle axis, first pawl are rotated with axle of the air door to drive described second
Pawl, second pawl drive the rotation of throttle axis.
As the further improvement of an embodiment of the present invention, second pawl is equipped with limitation choke in a second direction
The self-locking structure of rotation, the self-locking structure include the stage portion being set on the second pawl, and first pawl is connected to described
To drive second pawl, the stage portion limits first pawl and rotates in a second direction reset, the throttle axis band in rank portion
It moves second pawl to separate with first pawl, first pawl is allowed to rotate in a second direction reset.
The invention further relates to a kind of gasoline engine, including shell, the intracorporal cylinder of shell is set, moves back and forth in the cylinder
The driving motor of driving Crankshaft motion, the fuel tank for storing fuel, setting when piston, the crankshaft for driving reciprocating motion of the pistons, starting
Carburetor between cylinder and fuel tank, the gasoline engine further include automatic wind gate described in any one embodiment as above
System processed.
As the further improvement of an embodiment of the present invention, the gasoline engine further includes the air filter for connecting the air inlet
Device, the air filter include the air filter bottom for connecting the air filter shell of shell and being set between air filter shell and shell
Seat, the steering engine and transmission mechanism are mounted on the air filter pedestal.
As the further improvement of an embodiment of the present invention, the controller is according to the starting of the driving motor to temperature
The temperature that degree detection unit detects is judged, and the steering engine starting is controlled when the temperature detected is lower than preset value.
The present invention further relates to a kind of self closing door control method of gasoline engine, which comprises the following steps:
Obtain the temperature of cylinder；
When the temperature of cylinder is less than preset temperature, controller sends driving signal to power unit, and the driving signal is
Control power unit drives the signal that choke is rotated in a first direction predetermined angle and power unit resets, and choke is dynamic
Air inlet is closed under the action of power unit, throttle opens the first predetermined angle under the action of choke single-direction transmission connects；
Control throttle open the second predetermined angle, second predetermined angle be greater than first predetermined angle, throttle with
Choke disconnects single-direction transmission connection, and choke, which resets, opens air inlet.
As the further improvement of an embodiment of the present invention, based on engine start of the controller obtains cylinder
Temperature.
Compared with prior art, self closing door control system and gasoline function provided by the invention are effectively according to cylinder temperature
Changing for degree judges and realizes automatically turning on or off for carburetor pre-add throttle, after carburetor open out, self-locking knot
Structure unlock, choke can then be restored to open state, be achieved in the automation of whole process, can largely simplify people
Operation, it is convenient for people to use.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of gasoline engine in the preferred embodiment of the invention；
Fig. 2 is the enlarged diagram of the part a in Fig. 1；
Fig. 3 is the part isometric decomposition diagram of the gasoline engine in Fig. 1；
Fig. 4 is the self closing door control system of the gasoline engine in Fig. 1 and the main view of self closing door control system；
Fig. 5 is the stereoscopic schematic diagram of a part of self closing door control system in Fig. 4；
Fig. 6 is the perspective exploded view of self closing door control system in Fig. 5；
Fig. 7 is the schematic top plan view of self closing door control system in Fig. 5；
Fig. 8 is the schematic cross-sectional view in Fig. 7 along line A-A；
Fig. 9 is the stereoscopic schematic diagram that self closing door control system is in original state；
Figure 10 is the schematic cross-sectional view in Fig. 7 along line B-B；
Figure 11 is the stereoscopic schematic diagram that self closing door control system is in steering engine starting state；
Figure 12 is similar with Figure 10, and wherein self closing door control system is in steering engine starting state；
Figure 13 is the stereoscopic schematic diagram that self closing door control system is in pre-add throttle；
Figure 14 is similar with Figure 10, and wherein self closing door control system is in pre-add throttle；
Figure 15 is the stereoscopic schematic diagram that self closing door control system is in steering engine reset state；
Figure 16 is similar with Figure 10, and wherein self closing door control system is in steering engine reset state；
Figure 17 is the stereoscopic schematic diagram that self closing door control system is in state of opening the throttle；
Figure 18 is similar with Figure 10, and wherein self closing door control system is in state of opening the throttle.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
It should be understood that the art of the representation space relative position used herein such as "upper", " top ", "lower", " lower section "
Language be for convenient for explanation purpose come describe as shown in the drawings a unit or feature relative to another unit or spy
The relationship of sign.The term of relative space position can be intended to include equipment in use or work other than orientation as shown in the figure
Different direction.
As shown in Fig. 1 to Fig. 5, the preferred embodiments of the present invention is introduced.In the present embodiment, with gasoline engine 100
For be illustrated.Gasoline engine 100 includes carburetor 20 and the cylinder 30 for connecting carburetor 20, carburetor 20 and cylinder 30 it
Between be equipped with inlet channel 21, inlet channel 21 has air inlet, and carburetor 20 is provided with throttle 24.Gasoline engine further includes automatic wind
Accelerator control system, self closing door control system include choke 23, the power unit for driving choke 23, connection power unit
Controller and the temperature detecting unit for connecting controller, choke 23 are used to open or close air inlet.Power unit includes
Steering engine 22, choke 23 connect elastic element 233, and temperature detecting unit is used to detect the temperature of cylinder 30, when the temperature detected
Degree is lower than preset temperature, and the controller control rotation of steering engine 22 drives choke 23 to be rotated in a first direction to close air inlet, bullet
Property 233 accumulation of energy of element, Unscrew first predetermined angle of the throttle 24 in response to choke 23；Gasoline starting opens throttle
Second predetermined angle, the release of 233 elastic force of elastic element drive choke 23 to open air inlet.
In the present embodiment, power unit further includes the transmission mechanism driven by steering engine 22, and transmission mechanism includes connection steering engine
The first spur gear 221 and the second spur gear 222 for being engaged with the first spur gear, the second spur gear 222 drive choke 23
It is rotated along same axis, i.e. the second spur gear 222 drives the rotation of choke 23 to open or close air inlet.Wherein spur gear refers to
Standard straight spur geer is used for gear drive, and with teeth can be carried out continuously engages passing movement and power on the wheel rim of gear.
The temperature that cylinder 30 is detected by temperature detecting unit, judges whether gasoline engine is in cold state with this,
That is being confirmed as cold start, and in cold start by steering engine when the temperature of the cylinder 30 detected is lower than preset temperature
Air door and pre-add throttle are closed in control, and air door automatically opens after activation.Steering engine 22, which is controlled, by controller drives the first commutating tooth
Wheel 221 and the second spur gear 222 rotate to realize that choke 23 closes air inlet, to reduce the air capacity of sucking carburetor 20,
The fuel concentration in fuel oil blender to increase sucking 30 inner combustion chamber of cylinder can be greatly in order to the starting of gasoline engine
Simplify the operation of people in degree, it is convenient for people to use.
Preferred in the present embodiment, transmission mechanism further includes the axle of the air door 231 driven by the second spur gear 222, choke
23 fix or are removably attachable on axle of the air door 231.Axle of the air door 231 is mounted in inlet channel 21, and steering engine 22 drives first
Spur gear 221 and the rotation of the second spur gear 222, the second spur gear 222 drive axle of the air door 231, are radially equipped on axle of the air door 231
Through the fluting 235 of axle of the air door, choke 23 be mounted on fluting 235 in, can by controller control steering engine 22 steering and
Revolving speed, to control the rotation angle of choke 23 to adjust intake.
In addition, throttle 24 is fixedly connected on throttle axis 241, the second spur gear 222 drives choke by axle of the air door 231
23 close；Axle of the air door 231 drives the rotation of throttle axis 241 to open throttle 24 by driving structure.Specifically, driving structure includes
The first pawl 232 being fixedly connected on axle of the air door 231 and the second pawl 242 being fixedly connected on throttle axis 241, the first pawl
232 rotate with axle of the air door 231 to drive the second pawl 242, and the second pawl 242 drives throttle axis 241 to rotate.Specifically, elastic element
233 be the air door spring being connected on axle of the air door 231, and air door spring is configured to torsional spring, and one end of torsional spring is connected to the first pawl 232
On, the other end of torsional spring is connected on throttle axis 241, and when choke 23 is closed, the first pawl 232 drives one end of torsional spring to revolve together
Turn, torsional spring accumulation of energy；When throttle is opened, the release of torsional spring elasticity drives the first pawl 232 then to drive axle of the air door 231 to open choke
23, that is to say, that air door spring provides the elastic force that axle of the air door 231 drives choke 23 by closed position to open position.Oil
Throttle spring 243 is connected on door-hinge 241, throttle spring 243 is also it is so structured that torsional spring, drives oil to provide 241 axis of throttle
Elastic force of the door 24 from open position to closed position.
Referring to shown in Fig. 5 to Fig. 8, the second spur gear 222 is equipped with limiting slot 226, axle of the air door 231 and the second spur gear
222 be clearance fit, and one pin shaft 236 of radial grafting, pin shaft 236 are matched with limiting slot 226 and merged in limiting slot on axle of the air door 231
It is rotated in the range of 226 restrictions, that is to say, that the second spur gear 222 drives axle of the air door 231 along first direction by pin shaft 236
Rotation, and work as the second spur gear 222 and rotated in the second direction opposite to the first direction in the range of limiting slot 226 limits,
Then axle of the air door 231 will not be rotated in a second direction together in the range of limiting slot 226 limits with the second spur gear 222.
The cross-sectional configuration of limiting slot 226 is two symmetrically arranged sectors, and the end of axle of the air door 231 is threaded through the second commutating tooth
In the centre bore of wheel 222, pin shaft 236 be fastened in limiting slot 226 and can along limiting slot 226 in predetermined range phase
Second spur gear 222 is rotated, it is axially mounted fixed between axle of the air door 231 and the second spur gear 222 that pin shaft 236 is realized simultaneously
Position.The initial position of pin shaft 236 is in and abuts with the first side channel wall 2261 of limiting slot 226, and such second spur gear 222 can be with
Pin shaft 236 is driven to be rotated in a first direction therewith by the cell wall of limiting slot 226；And when the second spur gear 222 is in steering engine
It is resetted in a second direction under the action of 22, pin shaft 236 is separated with the first side channel wall 2261, and the second spur gear 222 rotates to pin shaft
236 positions abutted with second side cell wall 2262 of limiting slot 226, in this process, the rotation of the second spur gear 222 can not
Pass to pin shaft 236.By the cooperation of pin shaft 236 and limiting slot 226, pin shaft 236 transmits the second spur gear 222 as driving member
To the rotation of axle of the air door 231, transmission mechanism thus may be implemented and be sequentially connected along first direction and axle of the air door, and along second
Direction is detached from axle of the air door is sequentially connected within a preset range.
In addition, the end of axle of the air door 231 forms flat 238, pin shaft 236 is threaded through in flat 238, in addition a shift fork 228
It is mounted in flat 238, is located between the main body and pin shaft 236 of axle of the air door 231, in order to position.Shift fork 228 can be by wind
Door-hinge 231 drives rotation, and then shift fork 228 is stirred the first pawl 232 and is rotated in a first direction.When the first pawl 232 is in elastic element
When resetting under the action of 233, the first pawl 232 drives axle of the air door 231 to rotate in a second direction by shift fork 228.
In the present embodiment, the first pawl 232 is rotated in a first direction to drive the second pawl 242, the second pawl 242 and throttle axis
241 relatively fixed installations, therefore the second pawl 242 drives throttle axis 241 to rotate, then throttle axis 241 drives throttle Unscrew
First predetermined angle, i.e. pre-add throttle.Be also formed between first pawl 232 and the second pawl 242 choke 23 is carried out it is self-locking
Self-locking structure, and the unlock of self-locking structure can be carried out by way of open out.Specifically, the second pawl 242 and the first pawl
The part of 232 cooperations is equipped with stage portion, including First terrace 2421 and second step face 2422, and the rotation of the first pawl 232 is first supported
It is connected to the First terrace 2421 of the second pawl 242, with further rotating for the first pawl 232, the first pawl 232 crosses first step
Face 2421 is then connected to second step face 2422, connects the elastic element energy storage of the first pawl 232；When the second spur gear 222 not
Drive that axle of the air door 231 is rotated in a first direction and the second spur gear 222 rotates in a second direction reset again, the first pawl 232 exists
Also have the tendency that rotating in a second direction under the action of elastic element, and between First terrace 2421 and second step face 2422
Joint face stop the first pawl 232 rotate in a second direction, i.e. stage portion on the second pawl 242 form locking the first pawl 242
Self-locking structure so that the unidirectional delivery that can only be rotated between the first pawl 232 and the second pawl 242, to make choke
Door 23 is in close state always, and when 20 open out of carburetor, the rotation of throttle axis 241 makes throttle open the second predetermined angle,
Second pawl 242 continues to rotate along the direction opened under the drive of throttle axis 241 to be separated with the first pawl 232, the lock of the first pawl 232
Surely it is released from, so that the first pawl 232 drives axle of the air door 231 to rotate in a second direction under the drive of elastic element, makes choke
20 open.That is, transmission mechanism can be driven to close choke 23 by control steering engine 22 when wanting starting up gasoline engine,
Once choke 23 is closed in place, the reversion of steering engine 22 resets, and steering engine 22 and transmission mechanism are detached from and are sequentially connected, and choke
Door 23 is kept in off position under the action of self-locking structure.Once and gasoline starting, after 20 open out of carburetor, self-locking knot
Structure unlock, choke 23 can then be restored to open state, be achieved in the automation of whole process.
The starting process of gasoline engine will be illustrated with reference to the accompanying drawings below.
As shown in Figure 9 and Figure 10, the original state of gasoline engine, steering engine 22 are in initial angle, and choke 23 is opened, throttle
24 close, and the first pawl 232 and the second pawl 242 are in the state being separated from each other, the first side channel wall of pin shaft 236 and limiting slot 226
2261 abut.Dotted line Y and dotted line Z respectively illustrate the aperture of throttle 24 and choke 23 in figure.
As is illustrated by figs. 11 and 12, temperature detecting unit detects the temperature of cylinder 30 lower than preset temperature, controller control
Steering engine 22 processed starts, and steering engine 22 drives the first spur gear 221 to rotate clockwise in the direction of the arrow in the figure, and then drives the second commutating tooth
Wheel 222 rotates counterclockwise, and the second spur gear 222 drives axle of the air door 231 to rotate counterclockwise by pin shaft 236, and the of axle of the air door 231
One pawl 232 against throttle axis 241 the second pawl 242 so that the second pawl 242 be able to drive throttle axis 241 rotation.
As shown in Figure 13 and Figure 14, steering engine 22 is continued to rotate to predetermined angle, at this point, choke 23 is closed, the second pawl 242
Throttle axis 241 is driven to rotate, throttle axis 241 drives throttle 24 to open the first predetermined angle, 233 accumulation of energy of elastic element.
As shown in Figure 15 and Figure 16, steering engine 22 inverts after reaching predetermined angle and returns to initial angle, because pin shaft 236 is limiting
To drive axle of the air door 231, throttle 24 and choke 23 are remained stationary for rotation in the slot 226 of position, complete to start at this time quasi-
Standby (i.e. choke closing and pre-add throttle).
As shown in Figure 17 and Figure 18, after success starting up gasoline engine, 24 (throttle axis rotates clockwise) of opening the throttle, throttle
24 open the second predetermined angle, and the second pawl 242 of throttle axis 241 is made to be no longer abut against the first pawl 232 of axle of the air door 231, axle of the air door
231 return to original state under the action of elastic element 233, and choke 23 automatically opens.
According to the above description, gasoline engine of the invention self closing door control method the following steps are included:
Obtain the temperature of cylinder 30；
When the temperature of cylinder 30 is less than preset temperature, controller sends driving signal to steering engine 22, and the driving signal is preferred
The signal for rotating predetermined angle along preset direction for control steering engine and resetting, such choke 23 are closed under the action of steering engine 22
Air inlet, throttle 24 open the first predetermined angle under the action of 23 single-direction transmission of choke connects；
It controls throttle 24 and opens the second predetermined angle, the second predetermined angle is greater than the first predetermined angle, throttle 24 and choke
Door 23 disconnects single-direction transmission connection, and choke 21, which resets, opens air inlet.
Further, controller is based on engine starts the temperature for obtaining cylinder.
By the linkage setting between choke and air door, so that the self closing door control of gasoline engine is simpler, thus
Reduce the cost of gasoline engine.
The invention further relates to the gasoline engine with above-mentioned self closing door control system, gasoline engine includes shell 10, cylinder 30
And carburetor 20 is arranged in shell 10, the piston 42 moved back and forth is equipped in cylinder 30, the top of piston 42 is additionally provided with
For the spark plug 43 of igniting, piston 42 is moved back and forth by crankshaft 41 and is driven, and wherein crankshaft 41 is arranged in crankcase 40, shell
It being additionally provided with driving motor 50 in vivo, driving crankshaft 41 to move when for starting, gasoline engine further includes the fuel tank 60 for storing fuel, oil
Case is mounted on the side of crankcase 40, and carburetor 20 also is located at the side of crankcase 40 and is located at the top of oil cylinder 60, driving electricity
The other side of crankcase 40 is arranged in machine 50.When driving motor 50 starts, controller obtains the vapour of temperature detecting unit detection
The temperature of cylinder 30 then judges that engine belongs to cold state, the control starting of steering engine 22 is to close when temperature is lower than preset value
Choke 23, and after throttle movement, choke 23 automatically restores to open state.Certainly, if temperature is higher than preset value,
Then judge that engine belongs to hot exposure state, then steering engine 22 will not generate movement, and the throttle 24 of carburetor 20 is closed.And start
Machine starts each time, and steering engine 22 can all receive cylinder temperature signal and judge.That is, controller is according to driving electricity
The starting of machine 50 judges the temperature that temperature detecting unit detects, and the control when the temperature detected is lower than preset value
Steering engine 22 start, and the temperature detected be higher than preset value when steering engine 22 not will start.
In addition, above-mentioned gasoline engine further includes the air filter 80 for connecting air inlet, air filter 80 has the sky of connection shell 10
Filter shell 81 and the air filter pedestal 82 being set between air filter shell 81 and shell 10, steering engine 22 and transmission mechanism
It is installed on air filter pedestal 82.Cylinder 30 is additionally provided with muffler 70 relative to the other side of carburetor 20, to reduce gasoline
The noise that machine issues when running.
In above-described embodiment, the self closing door control system of gasoline engine can judge automatically according to the variation of cylinder temperature
And realize turning on or off for carburetor pre-add throttle.The operation of people can largely be simplified, it is convenient for people to use.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of self closing door control system of gasoline engine, the gasoline engine includes the cylinder of carburetor and connection carburetor,
The carburetor is provided with throttle, and inlet channel described in inlet channel is equipped between the carburetor and cylinder has air inlet,
The self closing door control system include choke, drive choke power unit, connect power unit controller and
The temperature detecting unit of controller is connected, the choke is used to open or closes the air inlet,
It is characterized in that, the choke connects elastic element, the temperature detecting unit is used to detect the temperature of the cylinder,
When the temperature detected is lower than preset temperature, the controller controls the power unit and drives the choke along first direction
Rotation is to close the air inlet, the elastic element energy storage, Unscrew first of the throttle in response to the choke
Predetermined angle；Accelerator open degree is increased to not less than the second predetermined angle, and the elastic element elastic force release drives the choke
Open the air inlet.
2. the self closing door control system of gasoline engine according to claim 1, which is characterized in that the power unit includes
Steering engine and the transmission mechanism driven by the steering engine, the transmission mechanism include connecting the first spur gear of steering engine and with first
Second spur gear of spur gear engagement, second spur gear drive the choke to rotate along same axis.
3. the self closing door control system of gasoline engine according to claim 2, which is characterized in that the transmission mechanism also wraps
The axle of the air door driven by second spur gear is included, the choke is connected on the axle of the air door；The throttle is connected to oil
On door-hinge, second spur gear drives choke to close by axle of the air door；The axle of the air door drives throttle by driving structure
Axis is rotated to open throttle.
4. the self closing door control system of gasoline engine according to claim 3, which is characterized in that the driving structure includes
The first pawl being fixedly connected on axle of the air door and the second pawl being fixedly connected on the throttle axis, first pawl is with air door
To drive second pawl, second pawl drives the rotation of throttle axis for axis rotation；The gasoline starting, the throttle axis rotation
Increase to the accelerator open degree not less than the second predetermined angle, second predetermined angle is greater than first predetermined angle,
Second pawl separates under the drive of the throttle axis with first pawl, and the elastic element acts on the first pawl band
Dynamic axle of the air door makes the choke open the air inlet.
5. the self closing door control system of gasoline engine according to claim 3, which is characterized in that connected on the throttle axis
There is throttle spring, the throttle spring provides the throttle axis and drives the throttle by the elasticity of open position to closed position
Power.
6. a kind of self closing door control system of gasoline engine, choke, driving choke including being used to open or closing air inlet
The power unit of door, the controller for connecting power unit and the throttle for being set to carburetor, which is characterized in that
The choke connects reset element, and the controller control power unit drives the choke to be rotated in a first direction
To close the air inlet, the single-direction transmission that the choke and throttle establish first direction under the action of power unit connects
It connects, the throttle opens the first predetermined angle, and the choke, which is limited, to be rotated in the second direction opposite to the first direction；
The throttle is opened to not less than the second predetermined angle, and the choke connects disconnection with the single-direction transmission of throttle, described
Reset element drives the choke to rotate in a second direction to open the air inlet.
7. the self closing door control system of gasoline engine according to claim 6, which is characterized in that the power unit includes
Steering engine, the transmission mechanism driven by steering engine and the axle of the air door for being connected to transmission mechanism, the air door are mounted on the axle of the air door
On, the transmission mechanism is sequentially connected along the first direction and the axle of the air door, and in a second direction within a preset range
It is detached from and is sequentially connected with the axle of the air door.
8. the self closing door control system of gasoline engine according to claim 7, which is characterized in that the transmission mechanism includes
The first spur gear driven by steering engine and the second spur gear engaged with the first spur gear, the end face of second spur gear is set
There is limiting slot, one end of the axle of the air door connects driving member, and the driving member is set in the limiting slot and can be along limit
Position slot is rotated relative to second spur gear, and second spur gear is rotated in a first direction by described in driving member drive
Axle of the air door rotation；Second spur gear rotates in the preset range for corresponding to the limiting slot in a second direction, the biography
Moving part in the limiting slot with the second spur gear relative motion.
9. the self closing door control system of gasoline engine according to claim 6, which is characterized in that the throttle is connected to oil
On door-hinge, driving structure is set between the choke and the throttle；The choke links and leads to the driving structure
Throttle axis is driven to rotate for structure of overdriving so that throttle opens the first predetermined angle.
10. the self closing door control system of gasoline engine according to claim 9, which is characterized in that the driving structure packet
The second pawl for including the first pawl being fixedly connected on axle of the air door and being fixedly connected on the throttle axis, first pawl is with the wind
To drive second pawl, second pawl drives the rotation of throttle axis for door-hinge rotation.
11. the self closing door control system of gasoline engine according to claim 10, which is characterized in that set on second pawl
The self-locking structure that restricted choke rotates in a second direction, the self-locking structure include the stage portion being set on the second pawl,
First pawl is connected to the stage portion to drive second pawl, and the stage portion limits first pawl in a second direction
Spinning reduction, the throttle axis drive second pawl to separate with first pawl, and first pawl is allowed in a second direction
Spinning reduction.
12. a kind of gasoline engine, including shell, be arranged in the intracorporal cylinder of shell, in the cylinder move back and forth piston, band piston
The crankshaft of reciprocating motion, the driving motor of driving Crankshaft motion when starting, the fuel tank for storing fuel, setting cylinder and fuel tank it
Between carburetor, which is characterized in that the gasoline engine further include such as claims 1 to 11 it is any one of automatic wind gate
System processed.
13. gasoline engine according to claim 12, which is characterized in that the gasoline engine further includes connecting the air inlet
Air filter, the air filter include the air filter for connecting the air filter shell of shell and being set between air filter shell and shell
Device pedestal, the steering engine and transmission mechanism are mounted on the air filter pedestal.
14. gasoline engine according to claim 12, which is characterized in that the controller is according to the starting of the driving motor
The temperature that temperature detecting unit detects is judged, and controls the steering engine when the temperature detected is lower than preset value and opens
It is dynamic.
15. a kind of self closing door control method of gasoline engine, which comprises the following steps:
Obtain the temperature of cylinder；
When the temperature of cylinder is less than preset temperature, controller sends driving signal to power unit, and the driving signal is control
Power unit drives the signal that choke is rotated in a first direction predetermined angle and power unit resets, and choke is in power list
Air inlet is closed under the action of member, throttle opens the first predetermined angle under the action of choke single-direction transmission connects；
It controls throttle and opens the second predetermined angle, second predetermined angle is greater than first predetermined angle, throttle and choke
Door disconnects single-direction transmission connection, and choke, which resets, opens air inlet.
16. the self closing door control method of gasoline engine according to claim 15, which is characterized in that the controller is based on
The starting of engine obtains the temperature of cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240186.2A CN109184960A (en) | 2018-10-24 | 2018-10-24 | Self closing door control system, control method and the gasoline engine of gasoline engine |
| PCT/CN2019/112711 WO2020083306A1 (en) | 2018-10-24 | 2019-10-23 | Automatic air valve control system for gasoline engine and gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240186.2A CN109184960A (en) | 2018-10-24 | 2018-10-24 | Self closing door control system, control method and the gasoline engine of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109184960A true CN109184960A (en) | 2019-01-11 |
Family
ID=64942774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811240186.2A Pending CN109184960A (en) | 2018-10-24 | 2018-10-24 | Self closing door control system, control method and the gasoline engine of gasoline engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109184960A (en) |
| WO (1) | WO2020083306A1 (en) |
Cited By (2)
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| WO2020083306A1 (en) * | 2018-10-24 | 2020-04-30 | 苏州科瓴精密机械科技有限公司 | Automatic air valve control system for gasoline engine and gasoline engine |
| CN114673607A (en) * | 2022-04-11 | 2022-06-28 | 永康市星光电器制造有限公司 | Carburetor with air door locking mechanism |
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Also Published As
| Publication number | Publication date |
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| WO2020083306A1 (en) | 2020-04-30 |
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