CN203296994U - Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system - Google Patents
Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system Download PDFInfo
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- CN203296994U CN203296994U CN2013203108536U CN201320310853U CN203296994U CN 203296994 U CN203296994 U CN 203296994U CN 2013203108536 U CN2013203108536 U CN 2013203108536U CN 201320310853 U CN201320310853 U CN 201320310853U CN 203296994 U CN203296994 U CN 203296994U
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- voltage stabilizer
- oil
- pressure wave
- pressure
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Abstract
The utility model provides a pressure wave damping type voltage stabilizer and a pressure wave damping type fuel oil system. The voltage stabilizer comprises a voltage stabilizer shell; a voltage stabilization cavity is formed in the voltage stabilizer shell, damping ports with different sizes are formed in the voltage stabilizer shell, and liquid capacitance dampers with different sizes are arranged on the damping ports respectively. The fuel oil system comprises an oil tank, the voltage stabilizer and an oil injector; the oil tank is connected with a filter cleaner, an oil delivery pump and a high-pressure oil pump in sequence and then connected with the voltage stabilizer, the voltage stabilizer is connected with the oil injector and is further communicated with the oil tank directly through an oil return pipe, and a safety valve is arranged on the oil return pipe. The pressure wave damping type voltage stabilizer and the pressure wave damping type fuel oil system can effectively attenuate and absorb high-frequency pressure fluctuation and hydraulic impact, reduce fluctuation of oil injection quantity in each time of cycle, improve stability of the oil injection quantity in engine cycles and weaken mutual effect among all cylinders of an engine.
Description
Technical field
The oil-fired system that the utility model relates to a kind of pressure voltage stabilizer and this pressure voltage stabilizer is installed.
Background technique
The electronic control injection technology has experienced from the then transformation of the automatically controlled oil-fired system of m-pressure type of position model electric control fuel system, realized the transformation of the fuel system of pulsed to the fuel system of pressure accumulation type, and along with global energy is day by day exhausted, various countries are also more and more harsher to the requirement of the discharging of diesel engine and Economy, and this just impels the core system as internal-combustion engine---the constantly bringing forth new ideas and optimize of oil-fired system.
The electric-controlled co-rail oil-fired system realized that injection pressure is adjustable and can continue to keep high pressure conditions, the generation of injection pressure and injection process separate, freely the controlling of injection timing and injection rate waveform.High pressure oil pump in the electric-controlled co-rail oil-fired system is under the drive of diesel engine, and than continuous high pressure fuel being transported in common rail chamber (being public cavity volume), high pressure fuel is sent into the oil sprayer of each cylinder again by common rail chamber with certain speed.Within the pressure in rail chamber maintains certain number range altogether, constantly to oil sprayer, provide high pressure fuel.But in existing technology, due to the dither formula fuel feeding of high pressure oil pump in common rail chamber, the hydraulic shock of each cylinder commencement of fuel injection and end oil spout is simultaneously fed back again among common rail chamber, cause the pressure surge in common rail chamber remarkable, affect the stable of cycle of engine fuel injection quantity, make the every circulating fuel injection quantity of each cylinder inconsistent, cause the unbalanced of each cylinder power output.
Summary of the invention
The purpose of this utility model is to provide and can effectively weakens and absorbing high-frequency pressure surge and hydraulic shock, reduce the fluctuation of the fuel injection quantity of every circulation, improve the stability of cycle of engine fuel injection quantity, weaken interactional a kind of pressure wave damped type voltage stabilizer and pressure wave damped type oil-fired system between each cylinder of motor.
The purpose of this utility model is achieved in that
A kind of pressure wave damped type of the utility model voltage stabilizer is characterized in that: comprise the voltage stabilizer housing, in the voltage stabilizer housing, form pressure stabilizing cavity, the damping port that varies in size is set on the voltage stabilizer housing, the liquid that varies in size is installed respectively on each damping port and is held damper.
A kind of pressure wave damped type of the utility model oil-fired system, it is characterized in that: comprise fuel tank, voltage stabilizer, oil sprayer, fuel tank connects voltage stabilizer after connecting successively filter cleaner, oil transfer pump, high pressure oil pump, and voltage stabilizer connects oil sprayer, and voltage stabilizer also directly is communicated with fuel tank by return tube; Described voltage stabilizer comprises the voltage stabilizer housing, in the voltage stabilizer housing, forms pressure stabilizing cavity, and the damping port that varies in size is set on the voltage stabilizer housing, the liquid that varies in size is installed respectively on each damping port and is held damper.
Advantage of the present utility model is: pressure wave damped type oil-fired system, according to total cylinder number of oil-fired system and the requirement of actual conditions, coupling damping hole, damping port and liquid hold damper, make it weaken the pressure surge of fuel oil.Due to the effect of pressure stabilizing cavity, weakened the pressure surge of oil-fired system, also weakened the compression shock of oil sprayer commencement of fuel injection and end oil spout simultaneously, increased the stability of circulating fuel injection quantity.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model voltage stabilizer;
Fig. 2 is the structural representation of the utility model oil-fired system.
Embodiment
Below in conjunction with accompanying drawing, for example the utility model is described in more detail:
In conjunction with Fig. 1～2, pressure wave damped type voltage stabilizer comprises voltage stabilizer housing 14, damping port 15, and liquid holds damper 16, pressure stabilizing cavity 17.Voltage stabilizer housing 14 arranged around the damping port 15 of different-diameter size, the other end of damping port 15 is that liquid holds damper 16, fuel oil enters the interior phenomenon that pressure surge occurs of pressure stabilizing cavity 17, when pressure wave, by damping port 15, entering liquid holds after damper 16 weakened, thereby reached the effect that reduces pressure stabilizing cavity 17 pressure surges, thereby the volume that damping port and liquid by the coupling different-diameter hold damper weakens the pressure wave of different frequency.Damping port 15 and not isometric liquid by different-diameter and length hold the pressure wave that damper 16 can weaken different frequency.
It mainly comprises fuel tank 1 pressure wave damped type oil-fired system, filter cleaner 2, oil transfer pump 3, high pressure oil pump 4, high-pressure oil pipe 5, pressure stabilizing cavity 6, hole pipe 7, damping hole 8, safety valve 9, electric-controlled fuel injector 10, return tube 11.After oil transfer pump 3 filters the fuel oil suction filter of 1 li of fuel tank 2 and with certain fluctuation pressure infeed high pressure oil pump 4, high pressure oil pump 4 pumps into pressure stabilizing cavity 6 because the pressurization of reciprocating piston makes fuel oil with the pulsation form high-pressure oil pipe 5 of flowing through, pressure in pressure stabilizing cavity 6 surpasses the setting pressure of safety valve 9, safety valve will be opened, reduce the pressure of pressure stabilizing cavity 6, fuel oil flows back to fuel tank 1 through return tube 11; The arranged around of pressure stabilizing cavity 6 damping port 12 and liquid hold damper 13.The high pressure fuel of pulsation, in pressure stabilizing cavity 6 fluctuations, holds damping and the weakening of 13 pairs of pressure waves of damper by damping port 12 and liquid, thereby makes the fuel pressure in pressure stabilizing cavity 6 stable.
Claims (2)
1. a pressure wave damped type voltage stabilizer, is characterized in that: comprise the voltage stabilizer housing, in the voltage stabilizer housing, form pressure stabilizing cavity, the damping port that varies in size is set on the voltage stabilizer housing, the liquid that varies in size is installed respectively on each damping port and is held damper.
2. pressure wave damped type oil-fired system, it is characterized in that: comprise fuel tank, voltage stabilizer, oil sprayer, fuel tank connects voltage stabilizer after connecting successively filter cleaner, oil transfer pump, high pressure oil pump, and voltage stabilizer connects oil sprayer, voltage stabilizer also directly is communicated with fuel tank by return tube, mounting safety valve on return tube; Described voltage stabilizer comprises the voltage stabilizer housing, in the voltage stabilizer housing, forms pressure stabilizing cavity, and the damping port that varies in size is set on the voltage stabilizer housing, the liquid that varies in size is installed respectively on each damping port and is held damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203108536U CN203296994U (en) | 2013-05-31 | 2013-05-31 | Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203108536U CN203296994U (en) | 2013-05-31 | 2013-05-31 | Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296994U true CN203296994U (en) | 2013-11-20 |
Family
ID=49573007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203108536U Expired - Fee Related CN203296994U (en) | 2013-05-31 | 2013-05-31 | Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321805A (en) * | 2013-05-31 | 2013-09-25 | 哈尔滨工程大学 | Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system |
-
2013
- 2013-05-31 CN CN2013203108536U patent/CN203296994U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321805A (en) * | 2013-05-31 | 2013-09-25 | 哈尔滨工程大学 | Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |