CN2563316Y - Idling increasing valve for engine - Google Patents
Idling increasing valve for engine Download PDFInfo
- Publication number
- CN2563316Y CN2563316Y CN 02265581 CN02265581U CN2563316Y CN 2563316 Y CN2563316 Y CN 2563316Y CN 02265581 CN02265581 CN 02265581 CN 02265581 U CN02265581 U CN 02265581U CN 2563316 Y CN2563316 Y CN 2563316Y
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- air
- main body
- piston
- chamber
- air chamber
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- Expired - Fee Related
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model provides an engine idle speed enhancing valve for vehicles, mainly comprising a main body, an electric switch, an electromagnetic valve and an air chamber, wherein the electromagnetic valve and the air chamber are arranged on the main body; the air chamber is provided inside with a piston connected with a push rod which has the other end extended out of the air chamber wall; the electromagnetic valve comprises a coil, a moving iron connected with a spring and a static iron provided with an air outlet channel, the moving iron is provided with an axial channel; the main body is provided with an air inlet channel corresponding to one end of the moving iron; the air inlet channel is communicated with a piston back cavity of the air chamber by a first air channel of the main body; the moving iron can block the valve port of the air inlet channel or the air outlet channel while moving back and forth in the coil; the electric switch is in serial connection with the coil; the main body is provided with a second air channel communicated with a piston front cavity of the air chamber, the second air channel is communicated with the air inlet channel by a connecting channel of the main body. The idle speed enhancing valve adopting he structure has the push-out and the return of the push rod completely controlled by the air pressure, thereby the utility model has the advantages of stable and reliable performance and long service life.
Description
Technical field
The utility model relates to a kind of idling lifting device of motor, particularly a kind of idle-speed-enhancing valve that can be automatically the idling of motor be promoted because of the unlatching running of air-conditioning equipment.
Background technique
Vehicle as opening the air-conditioning equipment in the car and running well, then must promote the idling of vehicle when idling.The idle-speed-enhancing valve of the specification CN2467804 of Chinese patent bulletin is disclosed a kind of diesel engine is to be used for a kind of device that vehicle idling promotes.In this diesel engine idle-speed-enhancing valve, useful electromagnet opens and closes the air inlet nozzle and the outlet nozzle of valve port, and air inlet nozzle is communicated with cylinder by air flue, has the one end to have the piston and the spring that contacts with the piston the other end of push rod in the cylinder.When electromagnet gets electricly when opening air inlet nozzle, pressurized air is entered in the cylinder through air inlet nozzle, air flue by intake duct, promotes piston motion, and the push rod on the piston promotes the speed-regulating arm of diesel engine thereupon, and " throttle " strengthens; After the electromagnet dead electricity, air inlet nozzle is closed, and outlet nozzle is open-minded, pressurized air in the cylinder passes through air flue under the spring action of piston one end, the internal chamber and the outlet nozzle of electromagnet are discharged into the atmosphere, piston reset, and diesel engine returns to work under the original idling mode.
Yet the idle-speed-enhancing valve of this diesel engine, because the flexible of push rod is to rely on the spring that contacts with piston to realize, because spring after use a period of time, can play decreased performance because of tired shape, even damage, cause idling lifting and the unstable properties of replying or malfunctioning.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of stable performance, and is durable, the idle-speed-enhancing valve of the motor of longer service life.
Above-mentioned purpose of the present utility model is to realize like this, the idle-speed-enhancing valve of this motor, comprise main body, electric switch and a solenoid valve on main body, an air chamber, a piston is arranged in the described air chamber, be connected with a push rod perpendicular to piston end surface on the piston, the other end of push rod is protruding by air chamber wall; Described solenoid valve comprises an electromagnetic coil, moving iron and the quiet iron that is provided with the venting road that the returning spring of ining succession is arranged in the chamber of electromagnetic coil, have passage vertically on the described moving iron, with the corresponding position of moving iron one end intake duct is arranged on the main body, this intake duct is communicated with plunger backer chamber in the air chamber by first air flue on the main body, it axially moves around described moving iron in electromagnetic coil electromagnetic force effect lower edge, can contact with the valve port of described intake duct or the valve port of described air outlet channel; Have second air flue that is communicated with the piston ante-chamber of described air chamber on described main body, this second air flue is communicated with described intake duct by the connecting passage on the main body.Described electric switch is connected in series with electromagnetic coil.When electromagnetic coil get electric after, moving iron is opened the valve port of intake duct, the valve port in venting road is closed, pressurized air enters from the valve port of intake duct, inject the plunger backer chamber of air chamber by first air flue, simultaneously, pressurized air enters the piston ante-chamber of air chamber by connecting passage, second air flue, because the area at the back of piston and the area of piston front portion is poor, produce a back pressure at the piston back, under this back pressure effect, promote piston and push rod is released, to promote the engine governed speed arm, " throttle " strengthened; After the electromagnetic coil dead electricity, the valve port of intake duct is closed, the valve port in venting road is opened, pressurized air is entered the piston ante-chamber of air chamber by connecting passage, second air flue, the pressurized air in the plunger backer chamber of air chamber is discharged to atmosphere by axial passage on first air flue, the moving iron and venting road simultaneously, and push rod is returned to reset condition under the piston ante-chamber atmospheric pressure effect of air chamber.At this moment the original idling mode in motor place work down.
Since the utility model adopted second air flue that is communicated with the piston ante-chamber of air chamber and with the air flue that is connected of second air flue connection, thereby the release of its push rod and reply and to control by air pressure fully, and the release of push rod of the prior art and answer rely on spring to realize, the control of air pressure control ratio spring is more reliable; Spring in use for some time, because of fatigue, decreased performance, even damage, and pressurized air is continual when this valve is worked, so the longer service life of the engine idle poppet valve that provides of the utility model, stable performance, durable.
Below in conjunction with accompanying drawing mode of execution of the present utility model is elaborated.
Description of drawings
Fig. 1 is the structure longitudinal section of the utility model engine idle poppet valve.
Embodiment
As shown in Figure 1, the engine idle poppet valve comprises 1, one electric switch of a main body and is contained in a solenoid valve 16 on the main body, an air chamber 7, a piston 10 is arranged in the air chamber, be connected with a push rod 8 perpendicular to piston end surface on the piston, the top of push rod 8 is protruding by air chamber 7 walls.
Having second air flue, 5, the second air flues that are communicated with the piston ante-chamber of air chamber 7 on the main body 1 is communicated with intake duct 20 by the connecting passage on the main body 9.Described air chamber 7 comprises first air cavity 22 at two ends, second air cavity 6, first air cavity 22 has the annular space that forms when the projection 11 at piston 8 back sides contacts with the air chamber end wall, the internal diameter of second air cavity 6 is less than the diameter of piston 8, the port of its first air flue 12 is positioned on first air cavity, 22 walls, the port of second air flue 5 is positioned on second air cavity, 6 walls, to improve the priming speed of push rod 8, shortens the response time.
For making push rod 8 stretch out the idling lifting capacity that main body 1 outer length adapts to installation requirement or motor, the adjusting screw rod 2 and the locking nut 3 of screw-thread fit is set on the end face of push rod 8.
Be sealed air chamber, reduce the frictional force of push rod motion, be provided with " Y " shape elasticity sealing gland ring 4 at the position that main body 1 matches with push rod 8 outer surfaces.
Above-mentioned electric switch is connected in series with the electromagnetic coil electricity, by the power supply and the control switch formation work electricity loop (not shown) of outside.Electric switch can be a contact switch that is contained on the main body, it comprise be contained on the main body and with a contact of its insulation, this contact can or separate with speed governing torque arm contact.Electric switch can also be a limit switch with normally closed interlock, and the button on it is connected in the engine governed speed torque arm or on the connector element of speed governing.
When motor is in idling mode, the contact of limit switch closure or contact switch contacts with the speed governing torque arm, open running as air condition compressor this moment, then electromagnetic coil 15, electric switch (not shown) and power supply (not shown) form electric loop, electromagnetic coil gets electric generation electromagnetic force, iron 17 is moved right, the valve port of intake duct 20 is open-minded, the valve port in venting road 14 is blocked, and pressurized air is through external passage 21, intake duct 20, first air flue 12, enter first air cavity 22 of air chamber 7, pressurized air is entered second air cavity 6 of air chamber 7 through connecting passage 9, the second air flues 5 by external passage 22 simultaneously, because the area of the piston 10 back acting surfaces in the air chamber is greater than the area of the anterior acting surface of piston, the piston back has produced pressure difference, and this back pressure promotes piston 10, and push rod 8 is released, promote the engine governed speed arm by adjusting screw rod 2, " throttle " strengthened; After the air condition compressor stall, the electric current of the electromagnetic coil 15 of flowing through is cut off, and moving iron 17 relies on the elastic force of returning spring 19 to be moved to the left, and intake duct 20 is blocked, and the valve port in venting road 14 is opened.At this moment, the pressurized air of the piston 10 back cavitys of air chamber 7 is by first air flue 12, and discharge to atmosphere in the axial passage 18 of moving iron and venting road 14.Simultaneously, pressurized air is from external passage 21, and the piston ante-chamber through connecting passage 9, second air flue, 5 injection air chambers 7 makes it air pressure and raises, and piston 10 and push rod 8 are returned to reset condition thereupon, remain in operation under the original idling mode in motor place this moment.
When the idling of motor promotes by manual control, the electric current of electric switch tripping magnet, thus the idle-speed-enhancing valve of motor quits work, and piston and push rod are returned to reset condition.
Claims (3)
1, a kind of idle-speed-enhancing valve of motor, mainly formed by the solenoid valve (16) on main body (1), electric switch and the main body, air chamber (7), a piston (10) is arranged in the described air chamber (7), in succession on the piston perpendicular to a push rod (8) of piston end surface, the other end of push rod (8) is protruding by air chamber (7) wall; Described solenoid valve (16) comprises an electromagnetic coil (15), the moving iron (17) of the returning spring of ining succession (19) is arranged in the chamber of electromagnetic coil and be provided with the venting road (14) a quiet iron (13), have passage (18) vertically on the described moving iron (17), main body (1) goes up with the corresponding position of moving iron (17) one ends intake duct (20), this intake duct is communicated with by the interior plunger backer chamber of first air flue (12) on the main body (1) and air chamber (7), it axially moves around described moving iron (17) in electromagnetic coil electromagnetic force effect lower edge, can contact with the valve port of described intake duct (20) or the valve port of described air outlet channel (14); Described electric switch is connected in series with described electromagnetic coil, it is characterized in that: have second air flue (5) that is communicated with the piston ante-chamber of described air chamber (7) on the described main body (1), this second air flue is communicated with described intake duct (20) by connecting passage set on the main body (9).
2, the idle-speed-enhancing valve of motor according to claim 1, it is characterized in that: described air chamber (7) comprises first air cavity (22) that is positioned at its two ends, second air cavity (6), first air cavity (22) has the annular space that projection (11) and air chamber (7) on piston (8) back side form when end wall contacts, and the internal diameter of second air cavity (6) is less than the diameter of piston (8); The port of described first air flue (12) is positioned on described first air cavity (22) wall, and the port of described second air flue (5) is positioned on described second air cavity (6) wall.
3, the idle-speed-enhancing valve of motor according to claim 1 and 2 is characterized in that: described main body (1) is provided with " Y " shape elasticity sealing gland ring (4) with the position that push rod (8) outer surface matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265581 CN2563316Y (en) | 2002-07-18 | 2002-07-18 | Idling increasing valve for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02265581 CN2563316Y (en) | 2002-07-18 | 2002-07-18 | Idling increasing valve for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2563316Y true CN2563316Y (en) | 2003-07-30 |
Family
ID=33731582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02265581 Expired - Fee Related CN2563316Y (en) | 2002-07-18 | 2002-07-18 | Idling increasing valve for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2563316Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016160A (en) * | 2012-12-31 | 2013-04-03 | 东风汽车股份有限公司 | Idle lift valve with telescopic self-locking mechanism |
-
2002
- 2002-07-18 CN CN 02265581 patent/CN2563316Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016160A (en) * | 2012-12-31 | 2013-04-03 | 东风汽车股份有限公司 | Idle lift valve with telescopic self-locking mechanism |
| CN103016160B (en) * | 2012-12-31 | 2015-08-12 | 东风汽车股份有限公司 | Idle lift valve with telescopic self-locking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030730 Termination date: 20090818 |