CN2937517Y - Idling device - Google Patents
Idling device Download PDFInfo
- Publication number
- CN2937517Y CN2937517Y CN 200620131202 CN200620131202U CN2937517Y CN 2937517 Y CN2937517 Y CN 2937517Y CN 200620131202 CN200620131202 CN 200620131202 CN 200620131202 U CN200620131202 U CN 200620131202U CN 2937517 Y CN2937517 Y CN 2937517Y
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- CN
- China
- Prior art keywords
- hole
- air
- idling device
- adjusting screw
- throttle body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model relates to an idle speed device, which comprises a throttle valve body, a throttle valve shaft, a valve plate of throttle valve, spacing screws and an air passage. The throttle valve body comprises a shoulder, the air passage is arranged inside the throttle valve body, the valve plate of the throttle valve is fixed on the throttle valve shaft, the valve plate of the throttle valve is positioned in the air passage of the throttle valve body, and divides the air passage into an air entering section and an air emitting section, spacing screws are arranged on the shoulder on one side of the throttle valve body. Wherein, the idle speed device also comprises a fine-tuning device. The fine-tuning device is fixed on the outer side of the throttle valve body, the fine-tuning device comprises an air inlet, an air outlet, a hole communicates the air inlet and the air outlet, as well as the adjusting screw assembled in the hole. The air inlet is communicated with the air entering section; the air outlet is communicated with the air emitting section. The idle speed device provided by the utility model can obtain an accurate idle speed air flux through regulation of the small gap between the hole and the adjusting screw, thereby the accurate idle speed when the engine is at idle speed is realized, and the idle speed performance of the automobile is improved.
Description
Technical field
The utility model relates to a kind of air oil supply system induction part, relates to a kind of idling device particularly.
Background technique
The effect of idling device is to guarantee to supply with the rich mixture that α value is about 0.6-0.8 during with idling or little load operation at petrol engine, and wherein the α value is the ratio of the required theoretical air quality of the air quality of 1 kilogram of fuel institute effective supply and 1 kilogram of fuel of perfect combustion of burning.The α value is low excessively, then can cause a part of fuel fully not burn, and makes that harmful substance content increases in the exhaust of Motor Vehicle, and is seriously polluted; The α value is too high, and then can cause lacking fire and make the idle running shakiness, in addition flame-out.The size of α value mainly is that the adjusting by base idle decides, and the adjusting of base idle is to realize that by the air inflow of regulating air therefore, the adjusting of air air inflow is extremely important during base idle.As depicted in figs. 1 and 2, the idling device of existing closure mainly comprises throttle body 1, throttle plate pin 2, closure valve block 3, stop screw 4 and air flue 10.Throttle body 1 comprises boss 11, air flue 10 is arranged on throttle body 1 inside, closure valve block 3 is fixed on the throttle plate pin 2, closure valve block 3 is arranged in the air flue 10 of throttle body 1 and air flue 10 is divided into induction part 15 and outlet gas part 16, and stop screw 4 is installed on the boss 11 of throttle body 1 one sides.This idling device is just by regulating the adjusting that a kind of mode of closure valve block 3 small apertures realizes air mass flow, the size of this aperture is by stop screw 4 decision, by the minimum aperture of the back-out amount decision closure valve block 3 of stop screw 4 flow of air during base idle just.But because closure valve block 3 and throttle body 1 diameter are bigger than normal, the minor adjustments of stop screw 4 will make the gap between closure valve block 3 and the throttle body 1 alter a great deal, and causes air inflow to alter a great deal thereupon.So, use this idling device to regulate base idle, can not obtain an accurate air stream value.In addition, the air mass flow in the time of can only adopting a kind of method to base idle owing to this idling device is regulated and this method is difficult to operation, so prolonged the adjusting time, has reduced working efficiency.
The model utility content
The purpose of this utility model is the rough defective of both air flow modulation when overcoming the idling device base idle of prior art, the idling device that provides a kind of air mass flow can be to base idle the time accurately to regulate.
The idling device that the utility model provides comprises throttle body 1, throttle plate pin 2, closure valve block 3, stop screw 4 and air flue 10.Throttle body 1 comprises boss 11, air flue 10 is arranged on throttle body 1 inside, closure valve block 3 is fixed on the throttle plate pin 2, closure valve block 3 is arranged in the air flue 10 of throttle body 1 and air flue 10 is divided into induction part 15 and outlet gas part 16, and stop screw 4 is installed on the boss 11 of throttle body 1 one sides.Wherein, described idling device also comprises trimmer 13, trimmer 13 is fixed on the outer side wall of throttle body 1, the hole 7 that trimmer 13 comprises inlet hole 5, air outlet hole 6, connect with inlet hole 5 and air outlet hole 6 and be assemblied in adjusting screw 8 in the hole 7, described inlet hole 5 communicates with induction part 15, and described air outlet hole 6 communicates with outlet gas part 16.
Air mass flow when the idling device that the utility model provides can not only be to base idle is carried out coarse adjustment, and the air mass flow in the time of can also be to base idle is finely tuned.By regulating adjusting screw 8, can utilize the axial distance of the micro-gap between adjusting screw 8 afterbodys and hole 7 circumferencial directions to come the limit air flow, thereby obtain less air mass flow.By simultaneously the stop screw 4 that is used for coarse adjustment and the adjusting screw 8 that is used to finely tune being regulated the accurate adjusting of the air mass flow can realize base idle the time, thereby accurate idling speed when realizing engine idle, improved the idling performance of automobile, neither can make motor cross low the starting, also can not make motor increase oil consumption because of idling is too high because of idling.The idling device that the utility model provides is owing to carry out coarse adjustment and fine setting simultaneously to air inflow, thereby reduced the idle time, improved working efficiency.And the idling apparatus structure that the utility model provides is simple, easy to manufacture, with low cost.
Description of drawings
Fig. 1 is the structural representation of the idling device of prior art;
Fig. 2 is the schematic cross-section along Fig. 1 section line A-A of the idling device of prior art;
Fig. 3 is the structural representation of idling device of the present utility model;
Fig. 4 is the schematic cross-section of idling device of the present utility model along Fig. 3 section line A-A;
Fig. 5 is the schematic cross-section of idling device of the present utility model along Fig. 4 section line B-B;
Fig. 6 is the adjustment state schematic representation of the fine setting part of idling device of the present utility model.
Embodiment
Below, in conjunction with the accompanying drawings, the utility model is described in detail.
According to concrete mode of execution of the utility model, as Fig. 3, Fig. 4 and shown in Figure 5, the idling device that the utility model provides comprises throttle body 1, throttle plate pin 2, closure valve block 3, stop screw 4 and air flue 10.Throttle body 1 comprises boss 11, air flue 10 is arranged on throttle body 1 inside, closure valve block 3 is fixed on the throttle plate pin 2, closure valve block 3 is arranged in the air flue 10 of throttle body 1 and air flue 10 is divided into induction part 15 and outlet gas part 16, and stop screw 4 is installed on the boss 11 of throttle body 1 one sides.Wherein, described idling device also comprises trimmer 13, trimmer 13 is fixed on the outer side wall of throttle body 1, the hole 7 that trimmer 13 comprises inlet hole 5, air outlet hole 6, connect with inlet hole 5 and air outlet hole 6 and be assemblied in adjusting screw 8 in the hole 7, described inlet hole 5 communicates with induction part 15, and described air outlet hole 6 communicates with outlet gas part 16.
Can select the diameter in inlet hole 5, air outlet hole 6 and hole 7 according to the size of the air mass flow of required idling fine setting.In order to make air-flow unobstructed, preferably, the diameter of air outlet hole 6 equates with the diameter in hole 7 and greater than the diameter of inlet hole 5, more preferably, the diameter in air outlet hole 6 and hole 7 is the 4.7-5.1 millimeter, and the diameter of inlet hole 5 is the 4.6-5.0 millimeter.Such as, the maximum value of the air mass flow of required idling fine setting is 1.6 Grams Per Seconds, and then the diameter of inlet hole 5 is 4.8 millimeters, and the diameter in air outlet hole 6 and hole 7 is 4.9 millimeters.Comprise screw thread in the hole 7, described screw thread can be the screw thread of arbitrary form, as being coarse thread or fine thread, as long as can cooperate with adjusting screw 8.
Cooperate with hole 7 for the ease of adjusting screw 8, under the preferable case, adjusting screw 8 and hole 7 coaxial settings.Adjusting screw 8 can be made by any materials, is preferably by carbon steel and makes.One end of adjusting screw 8 is a head, and the centre is screwed cylindrical bar, and the other end is an afterbody.Head can be socket cap, cup head, coiled hair etc., can have cross recess, interior hexagonal etc. on the head end, and for the ease of adjusting screw 8 is regulated, preferably, head is the cross recess socket cap.
For preventing that outside air from entering, preferably, comprise circular groove on the head of adjusting screw 8, O RunddichtringO 9 is arranged in the circular groove.Screw thread on the cylindrical bar can be coarse thread, also can be fine thread, and the air mass flow for to base idle the time is accurately regulated, and the screw thread on the cylindrical bar is preferably fine thread, and the Major Diam of described fine thread is preferably the 5-6 millimeter.The afterbody of adjusting screw 8 can be shapes such as cylindrical, cone-shape, and the air mass flow for to base idle the time is accurately regulated, and preferably, the afterbody of adjusting screw 8 is smooth cylindrical bar, and more preferably, cylindrical bar is identical with hole 7 diameters, the tolerance difference.The air mass flow of the length of axial distance that like this, can be by regulating the micro-gap between adjusting screw 8 afterbodys and hole 7 circumferencial directions during to the base idle of idling device accurately regulated.The length of the afterbody that cooperates with hole 7 of adjusting screw 8 can be any size, as long as can satisfy need of work, preferably, the length of the afterbody of adjusting screw 8 can be blocked up inlet hole 5 and penetrate air outlet hole 62-4.5 millimeter as long as satisfied.
As shown in Figure 4, closure valve block 3 is divided into induction part 15 and 16,14 airintake directions that refer to throttle body 1 of outlet gas part with air flue 10, and induction part 15 is used to flow into air, and outlet gas part 16 is used to flow out the air through throttling.In order to remove contained dust of air and impurity, to reduce the wearing and tearing between the mechanical part, reduce induction noise simultaneously, under the preferable case, the air that flows into induction part 15 is the air through the air-strainer filtering.Pressure surge when relaxing air inlet, under the preferable case, the air that flows out outlet gas part 16 communicates with pressure stabilizer.Below, the regulating method of idling device of the present utility model is described:
At first stop screw 4 is regulated, made closure valve block 3 arrive a definite position.Regulate adjusting screw 8 then, thus the air mass flow when obtaining required base idle.As shown in Figure 6, a side of the end of the afterbody of adjusting screw 8 and inlet hole 5 is tangent, and the afterbody of adjusting screw 8 blocks inlet hole 5 just fully.If the adjusting screw among Fig. 68 is continued to revolve inwards, the length of axial distance that then will be by regulating the micro-gap between adjusting screw 8 afterbodys and hole 7 circumferencial directions is regulated air inflow, screw-in along with adjusting screw 8, gas pressure reduces, density reduces, flow velocity slows down, air inflow diminishes thereupon, when adjusting screw 8 was threaded to lowermost end, air inflow was minimum; If with the adjusting screw among Fig. 68 to outward turning, then will regulate air inflow by the valid circulation area that changes inlet hole 5, along with adjusting screw 8 to outward turning, gas pressure raises, density increases, flow velocity is accelerated, air inflow increases thereupon, when adjusting screw 8 is threaded to the other side of the end of its afterbody and inlet hole 5 when tangent, air inflow reaches maximum value.Like this, simultaneously stop screw 4 and adjusting screw 8 are regulated the air mass flow in the time of to obtain an accurate base idle.
Claims (12)
1. idling device, this idling device comprises throttle body (1), throttle plate pin (2), closure valve block (3), stop screw (4) and air flue (10), throttle body (1) comprises boss (11), air flue (10) is arranged on throttle body (1) inside, closure valve block (3) is fixed on the throttle plate pin (2), closure valve block (3) is arranged in the air flue (10) of throttle body (1) and air flue (10) is divided into induction part (15) and outlet gas part (16), stop screw (4) is installed on the boss (11) of throttle body (1) one side, it is characterized in that, described idling device also comprises trimmer (13), trimmer (13) is fixed on the outer side wall of throttle body (1), trimmer (13) comprises inlet hole (5), air outlet hole (6), the hole (7) that connects with inlet hole (5) and air outlet hole (6) and be assemblied in adjusting screw (8) in the hole (7), described inlet hole (5) communicates with induction part (15), and described air outlet hole (6) communicates with outlet gas part (16).
2. idling device according to claim 1, wherein, described trimmer (13) is structure as a whole with throttle body (1).
3. idling device according to claim 1, wherein, described hole (7) are vertical with inlet hole (5) and vertical with air outlet hole (6).
4. idling device according to claim 1, wherein, the equal diameters of the diameter of air outlet hole (6) and hole (7) and greater than the diameter of inlet hole (5).
5, idling device according to claim 4, wherein, the diameter of air outlet hole (6) and hole (7) is the 4.7-5.1 millimeter, the diameter of inlet hole (5) is the 4.6-5.0 millimeter.
6, idling device according to claim 1, wherein, adjusting screw (8) is coaxial with hole (7).
7. idling device according to claim 1, wherein, the head of adjusting screw (8) is the cross recess socket cap.
8, idling device according to claim 1 wherein, comprises circular groove on the head of adjusting screw (8), and O RunddichtringO (9) is arranged in the circular groove.
9, idling device according to claim 1, wherein, the screw thread on the cylindrical bar of adjusting screw (8) is a fine thread.
10, idling device according to claim 9, wherein, the Major Diam of described fine thread is the 5-6 millimeter.
11, idling device according to claim 1, wherein, the afterbody of adjusting screw (8) is smooth cylindrical bar.
12, idling device according to claim 11, wherein, cylindrical bar is identical with hole (7) diameter, the tolerance difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620131202 CN2937517Y (en) | 2006-08-16 | 2006-08-16 | Idling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620131202 CN2937517Y (en) | 2006-08-16 | 2006-08-16 | Idling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937517Y true CN2937517Y (en) | 2007-08-22 |
Family
ID=38361543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620131202 Expired - Lifetime CN2937517Y (en) | 2006-08-16 | 2006-08-16 | Idling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937517Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840055A (en) * | 2012-09-23 | 2012-12-26 | 庄景阳 | Method for balancing carburetors of four cylinders by thickness gauge |
| CN102852673A (en) * | 2012-09-23 | 2013-01-02 | 庄景阳 | Balancing method for four-cylinder carburetor |
-
2006
- 2006-08-16 CN CN 200620131202 patent/CN2937517Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840055A (en) * | 2012-09-23 | 2012-12-26 | 庄景阳 | Method for balancing carburetors of four cylinders by thickness gauge |
| CN102852673A (en) * | 2012-09-23 | 2013-01-02 | 庄景阳 | Balancing method for four-cylinder carburetor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070822 |
|
| EXPY | Termination of patent right or utility model |