CN103321805A - Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system - Google Patents
Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system Download PDFInfo
- Publication number
- CN103321805A CN103321805A CN2013102130109A CN201310213010A CN103321805A CN 103321805 A CN103321805 A CN 103321805A CN 2013102130109 A CN2013102130109 A CN 2013102130109A CN 201310213010 A CN201310213010 A CN 201310213010A CN 103321805 A CN103321805 A CN 103321805A
- Authority
- CN
- China
- Prior art keywords
- pressure
- fuel
- voltage stabilizer
- stabilizer
- pressure wave
- 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.)
- Pending
Links
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention aims at providing a pressure wave damping type pressure stabilizer and a pressure wave damping type fuel system. The stabilizer comprises a stabilizer casing, a pressure stabilizing cavity is formed in the stabilizer casing, damping ports different in size are formed in the stabilizer casing, and liquid volume dampers different in size are mounted at the damping ports respectively. The fuel system comprises a fuel tank, the pressure stabilizer and fuel injectors. The fuel tank is connected with a filter, a fuel delivery pump and a high-pressure fuel pump successively and then connected the pressure stabilizer. The pressure stabilizer is connected with the fuel injectors and further directly communicated with the fuel tank through a fuel return pipe, and a safety valve is mounted on the fuel return pipe. By means of the pressure wave damping type pressure stabilizer and the pressure wave damping type fuel system, high-frequency pressure fluctuation and hydraulic shock can be weakened and absorbed effectively, fluctuation of the fuel injection quantity per cycle is reduced, the stability of the circulatory fuel injection quantity of an engine is improved, and mutual effects among cylinders of the engine are weakened.
Description
Technical field
What the present invention relates to is a kind of pressure voltage stabilizer and oil-fired system that 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 meta-pressure type of position model electric control fuel system, realized that the fuel system of pulsed is to the transformation of 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 the 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.The pressure in rail chamber maintains within certain number range altogether, constantly provides high pressure fuel to oil sprayer.But in existing technology, because the dither formula fuel feeding of high pressure oil pump is in common rail chamber, the simultaneously hydraulic shock of each cylinder commencement of fuel injection and end oil spout is fed back again among common rail chamber, cause the pressure surge in the 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 object of the present invention is to provide and effectively to weaken 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 object of the present invention is achieved like this:
A kind of pressure wave damped type of the present invention voltage stabilizer is characterized in that: comprise the voltage stabilizer housing, form pressure stabilizing cavity in the voltage stabilizer housing, 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 is held damper.
A kind of pressure wave damped type of the present invention 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, forms pressure stabilizing cavity in the voltage stabilizer housing, 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 is held damper.
Advantage of the present invention 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.Because the effect of pressure stabilizing cavity has 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.
Description of drawings
Fig. 1 is the structural representation of voltage stabilizer of the present invention;
Fig. 2 is the structural representation of oil-fired system of the present invention.
Embodiment
For example the present invention is described in more detail below in conjunction with accompanying drawing:
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 pressure stabilizing cavity 17 interior phenomenons that pressure surge occurs, it is weakened when pressure wave enters liquid to hold damper 16 by damping port 15 after, 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.Oil transfer pump 3 feeds high pressure oil pump 4 afterwards and with certain fluctuation pressure with fuel oil suction filter 2 filtrations of 1 li of fuel tank, high pressure oil pump 4 pumps into pressure stabilizing cavity 6 owing to 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 holds damping and the weakening of 13 pairs of pressure waves of damper in pressure stabilizing cavity 6 fluctuations by damping port 12 and liquid, thereby makes the fuel pressure in the pressure stabilizing cavity 6 stable.
Claims (2)
1. a pressure wave damped type voltage stabilizer is characterized in that: comprise the voltage stabilizer housing, form pressure stabilizing cavity in the voltage stabilizer housing, 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 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 the return tube; Described voltage stabilizer comprises the voltage stabilizer housing, forms pressure stabilizing cavity in the voltage stabilizer housing, 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 is held damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102130109A CN103321805A (en) | 2013-05-31 | 2013-05-31 | Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102130109A CN103321805A (en) | 2013-05-31 | 2013-05-31 | Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103321805A true CN103321805A (en) | 2013-09-25 |
Family
ID=49190784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102130109A Pending CN103321805A (en) | 2013-05-31 | 2013-05-31 | Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103321805A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020043249A1 (en) * | 2000-10-16 | 2002-04-18 | Ki-Ho Lee | Fuel rail with intergal dampening features |
| FR2891876A3 (en) * | 2005-10-07 | 2007-04-13 | Renault Sas | Fuel injection device for internal combustion engine e.g. diesel engine, has common injection rail formed with inner tube that is pierced with radial holes each comprising section greater than that of outlet orifices |
| JP2008190508A (en) * | 2007-02-07 | 2008-08-21 | Toyota Motor Corp | Fuel rail of internal combustion engine and fuel supply device |
| DE102008015143A1 (en) * | 2008-03-20 | 2009-09-24 | GM Global Technology Operations, Inc., Detroit | Fuel supply system for motor vehicle, has fuel conveying device and combined fuel distribution line, where two injection lines are connected with combined fuel distribution line |
| CN102062010A (en) * | 2011-01-21 | 2011-05-18 | 上海交通大学 | High-pressure common rail segmental injection pressure control system of diesel engine |
| CN203296994U (en) * | 2013-05-31 | 2013-11-20 | 哈尔滨工程大学 | Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system |
-
2013
- 2013-05-31 CN CN2013102130109A patent/CN103321805A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020043249A1 (en) * | 2000-10-16 | 2002-04-18 | Ki-Ho Lee | Fuel rail with intergal dampening features |
| FR2891876A3 (en) * | 2005-10-07 | 2007-04-13 | Renault Sas | Fuel injection device for internal combustion engine e.g. diesel engine, has common injection rail formed with inner tube that is pierced with radial holes each comprising section greater than that of outlet orifices |
| JP2008190508A (en) * | 2007-02-07 | 2008-08-21 | Toyota Motor Corp | Fuel rail of internal combustion engine and fuel supply device |
| DE102008015143A1 (en) * | 2008-03-20 | 2009-09-24 | GM Global Technology Operations, Inc., Detroit | Fuel supply system for motor vehicle, has fuel conveying device and combined fuel distribution line, where two injection lines are connected with combined fuel distribution line |
| CN102062010A (en) * | 2011-01-21 | 2011-05-18 | 上海交通大学 | High-pressure common rail segmental injection pressure control system of diesel engine |
| CN203296994U (en) * | 2013-05-31 | 2013-11-20 | 哈尔滨工程大学 | Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202578989U (en) | Combined electric control high-pressure common-rail diesel oil injection device | |
| CN202001162U (en) | Oil-taking metering valve controlled common-rail oil feed pump | |
| CN103244329A (en) | High-pressure common-rail fuel system with electric monoblock pumps | |
| CN202707319U (en) | Pump-pipe-valve-pipe-mouth fuel oil injection system | |
| CN203296994U (en) | Pressure wave damping type voltage stabilizer and pressure wave damping type fuel oil system | |
| CN204900126U (en) | Fuel feed system of diesel engine | |
| CN103321806A (en) | Pressure wave damping type fuel system | |
| CN203412685U (en) | Pressure wave damping type fuel oil system | |
| CN202250530U (en) | Bidirectional oil pressure pulsation damper | |
| CN209083453U (en) | A kind of multi-cylinder diesel engine high-pressure common-rail pipe | |
| CN103321805A (en) | Pressure wave damping type pressure stabilizer and pressure wave damping type fuel system | |
| CN102213169B (en) | High pressure common rail device with variable high pressure volume for high pressure common rail fuel system | |
| CN103277222B (en) | The layout of high pressure common rail fuel injection system on high-power diesel engine | |
| CN101684765B (en) | Low-pressure oil way pressure stabilizing and distributing device of monoblock pump fuel oil system | |
| CN203296991U (en) | Pressure wave damping type voltage stabilizer | |
| CN209212435U (en) | The diesel fuel supply system of V-type multi-cylinder high-power diesel engine | |
| CN106121890B (en) | Rail pressure regulating valve for common-rail system | |
| CN204691937U (en) | A kind of four-cylinder internal combustion engine oil gas supply system | |
| CN203730188U (en) | Fuel supply device of engine | |
| CN104879258A (en) | Hydraulic amplifying type ultrahigh-pressure fuel supply device | |
| CN204436642U (en) | Diesel generating set oil-fired system | |
| CN103321804A (en) | Pressure wave damping type voltage stabilizer | |
| CN209163972U (en) | The diesel fuel supply system of in-line large scale multi-cylinder diesel engine | |
| CN202252592U (en) | Oil pressure impulse buffering device | |
| CN204239116U (en) | High pressure co-rail system ∏ type series resonance mode filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |