CN1760517A - Configuration of air temp sensing device of injection engine - Google Patents
Configuration of air temp sensing device of injection engine Download PDFInfo
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- CN1760517A CN1760517A CN 200410085094 CN200410085094A CN1760517A CN 1760517 A CN1760517 A CN 1760517A CN 200410085094 CN200410085094 CN 200410085094 CN 200410085094 A CN200410085094 A CN 200410085094A CN 1760517 A CN1760517 A CN 1760517A
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- air
- sensing device
- temp sensing
- configuration
- injection engine
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Abstract
A configuration of air temperature sensing device on jet engine sets temperature sensing end near to boundary position of main air runner and air stationary region in air filter for making more accurate air-fuel ratio compensation to temperature variation by engine control system so as to achieve effects of oil saving, more powerful output of horsepower and better starting up.
Description
Technical field
The present invention relates to a kind of configuration of air temp sensing device of injection engine, especially refer to that a kind of air temp sensing device that sprays the fuel feeding engine is assembled on the air-strainer, its air fuel ratio that can make Engine Control System do for variation of temperature compensates more accurate, and then reaches more fuel-efficient, the bigger configuration that reaches the air temp sensing device of effects such as better startup of horsepower output.
Background technique
The air temp sensing device of injection engine mainly sucks the air temperature variations of engine in order to sensing, signal is passed to the control system of engine, and make the control system of injection engine do the air fuel ratio compensation for temperature variation, that is during too high temperature of air, reduce fuel injection quantity, otherwise then increase fuel injection quantity.
Spraying among the fuel feeding engine, be assembled in pattern on the air-strainer with air temp sensing device, very important of the assembling position of air temp sensing device, if it is be seated in the air flow channel,, unstable though warm measured value is more accurate; If be seated in the detention space of non-air flow passage route, though warm measured value is stable, more inaccurate.As December 2 1998 Christian era disclosed spy open flat 10-318014 number and on April 9th, 2003 disclosed spy the configuration that Japan Patent promptly discloses air temp sensing device such as open 2003-106226 number.
See also Fig. 1, its announcement has a kind of known air temp sensing device 9 to be assembled in configuration on the air-strainer 8, this air-strainer 8 has an inlet end 81, an outlet side 82 and is located at air flow channel 83 between this inlet end 81 and the outlet side 82, and between this inlet end 81 and outlet side 82, be provided with a filter screen 84, and the temperature-sensitive end 91 of this air temp sensing device 9 places the air flow channel 83 of air-strainer 8, though its warm measured value is more accurate, but can hinder air velocity, influence air mass flow.
See also Fig. 2, disclose another kind of known air temp sensing device 9 and be assembled in configuration on the air-strainer 8, the temperature-sensitive end 91 of this air temp sensing device 9 places the air trapping district 85 of air-strainer 8, though its warm measured value is stable, more inaccurate.
Therefore, the configuration of the air temp sensing device of above-mentioned known injection engine, and can't reach the warm measured value effect that makes the best of both worlds.
Summary of the invention
Main purpose of the present invention, be to provide a kind of configuration of air temp sensing device of injection engine, it can reach the warm measured value effect that makes the best of both worlds, the air fuel ratio compensation that makes Engine Control System do for variation of temperature is more accurate, and then reaches effect such as more fuel-efficient, the bigger and better startup of horsepower output.
To achieve the above object, the invention provides a kind of configuration of air temp sensing device of injection engine, especially the air temp sensing device of a kind of injection engine of finger is assembled in the configuration on the air-strainer, this air-strainer has a body, this body has an inlet end and an outlet side, one filter screen is arranged between this inlet end and the outlet side, be formed with an air flow channel between this inlet end and the outlet side, this air flow channel side forms an air trapping district, and the temperature-sensitive end of this air temp sensing device places near the intersection in air-strainer air flow channel and air trapping district.
For enabling further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Fig. 1 is assembled in the floor map of air-strainer for the air temp sensing device of known injection engine.
Fig. 2 is assembled in the floor map of air-strainer for the air temp sensing device of another kind of known injection engine.
Fig. 3 is a floor map of the present invention.
Fig. 4 is a part detail drawing of the present invention.
Wherein, description of reference numerals is as follows:
8 air-strainer
81 inlet ends, 82 outlet sides
83 air flow channels, 84 filter screens
85 air trapping districts, 9 air temp sensing devices
91 temperature-sensitive ends, 1 air-strainer
11 bodies, 111 first housings
112 second housings, 113 inlet ends
114 outlet sides, 115 flow channels
116 air trapping districts, 12 filter screens
13 air inlet ducts, 14 suction leads
141 mouths of pipe, 2 air temp sensing devices
21 temperature-sensitive ends, 22 obturating plugs
3 intake manifold, 4 engines
5 automotive engine system control gear, 6 oil nozzles
Embodiment
See also Fig. 3, the invention provides a kind of configuration of air temp sensing device of injection engine, especially refer to that a kind of air temp sensing device 2 that sprays the fuel feeding engine is assembled in the configuration on the air-strainer 1, this air-strainer 1 includes a body 11 and a filter screen 12, wherein this body 11 includes one first housing 111 and one second housing 112, and this first housing 111 and second housing 112 utilize modes such as screw locking to be combined into a hollow casing.Have an inlet end 113 and an outlet side 114 respectively in these body 11 different both sides, the both sides that this body 11 is provided with inlet end 113 and outlet side 114 form dirty side and clean side respectively.
A sheathed respectively air inlet duct 13 and the suction lead 14 of being connected with in the inlet end 113 of this body 11 and outlet side 114, these air inlet duct 13 1 ends communicate with the external world, in order to introduce ambient air, these air inlet duct 13 the other ends then stretch into this suitable length in body 11 inside.14 of this suction leads can be connected in engine 4 by an intake manifold 3, in order to the cleaned air after the output filtering to engine, this suction lead 14 is a conial tube, its front end has one and is the trumpet-shaped mouth of pipe 141, and be connected in the outlet side 114 of body 11 with this mouth of pipe 141, more smooth and easy when making air suck engine 4.
In this body 11 between inlet end 113 and outlet side 114 then the flow direction along air be formed with an air flow channel 115, after making air import air-strainer 1 by inlet end 113, flow to filter screen 12 through this air flow channel stream 115 and filter, discharge by outlet side 114 again.Form an air trapping district 116 in these air flow channel 115 sides near 114 places, outlet side in addition, this air trapping district 116 can make air produce and reflux, but not directly sucks engine, to have the effect of noise reduction.
Filter screen 12 is arranged on body 11 inside, and be positioned at 114 of inlet end 113 and outlet sides, this filter screen 12 is arranged at body 11 inside in disconnectable mode, and the material of this filter screen 12 does not limit, and can be the material of dust in general filter screen, filter paper or other the various filtered airs.
Storing position in the middle of the present invention mainly takes air temp sensing device 2, that is the temperature-sensitive end 21 of this air temp sensing device 2 places near the intersection in air-strainer 1 air flow channel 115 and air trapping district 116.After this air temp sensing device 2 measures intake temperature, transmit a signal with signaling line and give automotive engine system control gear (ECU) 5, calculate after signaling line transmits a signal through this device 5 and give oil nozzle 6, to provide suitable oil mass to engine 4 runnings.
In the present embodiment, this air temp sensing device 2 is fixed on the body 11 of air-strainer 1 with the obturating plug 22 at a crooked θ angle (being about 10 °), adjust the position of air temp sensing device 2 temperature-sensitive ends 21 so that utilize this obturating plug 22, make 21 one-tenth adjustable states of this temperature-sensitive end, and can do flexible adjustment.
As shown in Figure 4, in the present embodiment, the intersection in this air flow channel 115 and air trapping district 116, finger extends 1.5D length (wherein D is the internal diameter size at the mouth of pipe 141 places) forward by the mouth of pipe 141 of suction lead 14, and stretched out in the scope of 1/5D length in abutting connection with the regional A of these air trapping district 116 1 sides by the internal diameter of the mouth of pipe 141, and the temperature-sensitive end 21 of this air temp sensing device 2 places this zone A; By of the configuration of above-mentioned composition with the air temp sensing device that forms injection engine of the present invention.
The present invention mainly places the temperature-sensitive end 21 of this air temp sensing device 2 near the intersection in air-strainer 1 air flow channel 115 and air trapping district 116, under the prerequisite that does not influence flow impedance, can make the air temp sensing device 2 measured the most approaching reality of temperature variation suck the air temperature of engine, concerning the control system of injection engine, can be more accurate to the air fuel ratio indemnifying measure that temperature variation is done, reach more fuel-efficient whereby, horsepower output is bigger and effect such as better startup.
Moreover, the present invention because the temperature-sensitive end 21 of air temp sensing device 2 not on the predominating path of air flows, so air is not easy to suck engine by the swirl rate that air temp sensing device 2 causes, so can reach more stable mobile.
But the above only is a preferable possible embodiments of the present invention, and is non-so promptly limit the scope of the invention, so the equivalence techniques that all utilizations specification of the present invention and accompanying drawing content are done changes, all in like manner all is contained in the scope of the present invention.
Claims (7)
1, a kind of configuration of air temp sensing device of injection engine, the air temp sensing device of this injection engine is assembled on the air-strainer, this air-strainer has a body, this body has an inlet end and an outlet side, be provided with a filter screen between this inlet end and the outlet side, be formed with an air flow channel between this inlet end and the outlet side, this air flow channel side forms an air trapping district, and the temperature-sensitive end of this air temp sensing device places near the intersection in air-strainer air flow channel and air trapping district.
2, the configuration of the air temp sensing device of injection engine as claimed in claim 1, wherein the inlet end of this body is connected with an air inlet duct.
3, the configuration of the air temp sensing device of injection engine as claimed in claim 1, wherein the outlet side of this body is connected with a suction lead, this suction lead front end has a mouth of pipe, be connected in the outlet side of this body with this mouth of pipe, the internal diameter size at this mouth of pipe place is D, the intersection in this air flow channel and air trapping district refers to extend 1.5D length forward by the mouth of pipe of this suction lead, and is stretched out in the scope of 1/5D length in abutting connection with the zone of this air trapping district one side by the internal diameter of the mouth of pipe.
4, the configuration of the air temp sensing device of injection engine as claimed in claim 3, wherein this suction lead is a conial tube.
5, the configuration of the air temp sensing device of injection engine as claimed in claim 3, wherein the mouth of pipe of this suction lead front end is horn-like.
6, the configuration of the air temp sensing device of injection engine as claimed in claim 1, wherein this air temp sensing device is fixed on the body of this air-strainer.
7, the configuration of the air temp sensing device of injection engine as claimed in claim 6, wherein this air temp sensing device is fixed on the body of this air-strainer with a crooked obturating plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410085094 CN1760517A (en) | 2004-10-12 | 2004-10-12 | Configuration of air temp sensing device of injection engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410085094 CN1760517A (en) | 2004-10-12 | 2004-10-12 | Configuration of air temp sensing device of injection engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1760517A true CN1760517A (en) | 2006-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410085094 Pending CN1760517A (en) | 2004-10-12 | 2004-10-12 | Configuration of air temp sensing device of injection engine |
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| Country | Link |
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| CN (1) | CN1760517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366593A (en) * | 2016-05-13 | 2017-11-21 | 宝沃汽车（中国）有限公司 | Intake air temperature detection method, device and the vehicle of engine system |
| CN110469435A (en) * | 2019-09-12 | 2019-11-19 | 中国北方车辆研究所 | Testable armored vehicle air cleaner |
-
2004
- 2004-10-12 CN CN 200410085094 patent/CN1760517A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366593A (en) * | 2016-05-13 | 2017-11-21 | 宝沃汽车（中国）有限公司 | Intake air temperature detection method, device and the vehicle of engine system |
| CN107366593B (en) * | 2016-05-13 | 2019-09-20 | 宝沃汽车（中国）有限公司 | Intake air temperature detection method, device and the vehicle of engine system |
| CN110469435A (en) * | 2019-09-12 | 2019-11-19 | 中国北方车辆研究所 | Testable armored vehicle air cleaner |
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