CN2653157Y - Air inlet manifold of power lifting type petrol engine - Google Patents
Air inlet manifold of power lifting type petrol engine Download PDFInfo
- Publication number
- CN2653157Y CN2653157Y CN 03249221 CN03249221U CN2653157Y CN 2653157 Y CN2653157 Y CN 2653157Y CN 03249221 CN03249221 CN 03249221 CN 03249221 U CN03249221 U CN 03249221U CN 2653157 Y CN2653157 Y CN 2653157Y
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- CN
- China
- Prior art keywords
- air inlet
- petrol engine
- power
- gas inlet
- intake manifold
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- 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 - Fee Related
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Abstract
The utility model relates to a power raising gasoline engine gas inlet manifold, which comprises a gas inlet pressure-stabilizing body whose one end is provide with a throttle base, and four gas inlet channels; wherein, one end of each gas inlet channel is communicated with the gas inlet pressure-stabilizing body and the four channels are integrated as a whole with the resonant function; the lengths of the central lines of the air inlet channels are all 200mm; the sections of the inner surfaces of the air inlet channels are round with the diameters of 36 to 40mm. The utility model has the advantages of improving the coefficient of fresh charge by 9.6 percents, thereby, effectively improving the power of the motor.
Description
Technical field
The utility model relates to the shape or the configuration of gasoline engine inlet-air path, and particularly a kind of power ascension type petrol engine intake manifold is the improvement of prior art, and particularly suitable is made the intake manifold of 491Q type multiple spot electronic injection gasoline engine.
Background technique
At present, 491Q type petrol engine is the multiple spot electronic injection gasoline engine that does not improve design with reference to the 4Y of Toyota petrol engine the eighties, and its single-point EFI intake manifold structural type is similar to Carburetor, and multiple spot EFI intake manifold structural type is the common form of plenum and intake duct.The main performance index that its single-point EFI intake manifold is joined 491Q type single-point EFI and multiple spot EFI intake manifold 491Q type multiple spot electronic injection gasoline engine is respectively:
| Performance index | Single-point EFI intake manifold is joined the 491Q type | Multiple spot EFI intake manifold is joined the 491Q type |
| Rated power (kW) | 70 | 76 |
| Rated speed (r/min) | 4600 | 4600 |
| Peak torque (N.m) | 178 | 193 |
| Compression ratio | 8.8 | 8.8 |
| Discharge capacity | 2.237 | 2.237 |
| The air inlet volumetric efficiency | 0.83 | 0.85 |
| Power per liter (kW/L) | 31.3 | 33.4 |
Because the continuous increase of China's expressway, and the requirement of driving comfort improves constantly, power character to motor is had higher requirement, for example golden cup SY6470 light bus uses 491Q type multiple spot electronic injection gasoline engine also to feel to be short of power, on medium-to-high grade light bus, brought into use the 2RZ-E petrol engine of import 2.438 liter capacities, the power of this petrol engine is 88kW, bringing into use import 2.693 liter capacity 3RZ-E petrol engine aspect the high-grade light bus, the power of this petrol engine is 105kW, as seen, the intake manifold of improving design 491Q type multiple spot electronic injection gasoline engine improves power, substitutes the import petrol engine and has great significance.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, can effectively increase the power ascension type petrol engine intake manifold that volumetric efficiency improves petrol engine power thereby provide a kind of.
Content of the present utility model is: a kind of power ascension type petrol engine intake manifold, its feature part is: air inlet voltage stabilizing body (2) and 4 one intake duct with resonance effect (1) the global formation formations that end is connected with air inlet voltage stabilizing body (2) that solar term valve seat (3) is arranged by an end.
In the content of the present utility model: the length of described intake duct (1) center line is 200mm, and the internal surface cross-section of intake duct (1) is the rounded face that diameter is 36-40mm.
Compared with prior art, the utlity model has following characteristics:
(1) the air inlet plenum makes the pressure stability before air enters each cylinder intake duct; The Design of length of each intake duct is 200mm etc., can make full use of the air inlet inertia effect, realizes having the intake duct form of resonance effect;
(2), increased the air inlet volumetric efficiency of petrol engine by the improvement of intake manifold.According to the model machine before and after improving is tested, the volumetric efficiency before improving is 0.83, and the volumetric efficiency after the improvement is 0.91, and volumetric efficiency has improved 9.6%.Thus, the increase of the increase of petrol engine volumetric efficiency decision air inflow, engine electric-controlled management system accurately calculates fuel injection amount according to the petrol engine air inflow, thereby has improved the power of motor;
(3) adopt the utility model, by the model machine of making is carried out experimental test, compare with the petrol engine after the improvement before improving, compression ratio is 9.4 o'clock, and power has reached 85kW; Compression ratio is 9.6 o'clock, and power has reached 88kW, and maximum has improved 15.8%, join car after, discharging pollutants of car load reaches European II emission standard.This shows that the utility model intake manifold has effectively improved the power of petrol engine.
Description of drawings
Fig. 1 is the utility model embodiment intake manifold structural representation;
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Among the figure: 1-intake duct, 2-air inlet voltage stabilizing body, 3-solar term valve seat.
Embodiment
Referring to each accompanying drawing.A kind of power ascension type petrol engine intake manifold has the air inlet voltage stabilizing body 2 of solar term valve seat 3 and 1 global formation of the intake duct with resonance effect that 4 one ends are connected with air inlet voltage stabilizing body 2 to constitute by an end; (be curve B-C) be 200mm, the internal surface cross-section of intake duct (1) is the rounded face that diameter is 38mm to the length of described intake duct (1) center line.
During use, the fresh air that petrol engine enters enters the air inlet voltage stabilizing body 2 of intake manifold by air throttle, and the intake duct 1 by having resonance effect makes full use of the air inlet inertia effect again, increases charging efficiency, thereby effectively improves the power of motor.
Claims (2)
1. a power ascension type petrol engine intake manifold is characterized in that: air inlet voltage stabilizing body (2) and 4 one intake duct with resonance effect (1) the global formation formations that end is connected with air inlet voltage stabilizing body (2) that solar term valve seat (3) is arranged by an end.
2. by the described power ascension type of claim 1 petrol engine intake manifold, it is characterized in that: the length of described intake duct (1) center line is 200mm, and the internal surface cross-section of intake duct (1) is the rounded face that diameter is 36-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249221 CN2653157Y (en) | 2003-06-27 | 2003-06-27 | Air inlet manifold of power lifting type petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249221 CN2653157Y (en) | 2003-06-27 | 2003-06-27 | Air inlet manifold of power lifting type petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653157Y true CN2653157Y (en) | 2004-11-03 |
Family
ID=34327558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03249221 Expired - Fee Related CN2653157Y (en) | 2003-06-27 | 2003-06-27 | Air inlet manifold of power lifting type petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653157Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985909A (en) * | 2010-11-12 | 2011-03-16 | 南充工塑零部件有限公司 | Plastic induction manifold of automobile engine |
-
2003
- 2003-06-27 CN CN 03249221 patent/CN2653157Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985909A (en) * | 2010-11-12 | 2011-03-16 | 南充工塑零部件有限公司 | Plastic induction manifold of automobile engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |