CN104685437A - A pressure regulator device for fuel plants in internal combustion engines, particularly for the automotive field - Google Patents
A pressure regulator device for fuel plants in internal combustion engines, particularly for the automotive field Download PDFInfo
- Publication number
- CN104685437A CN104685437A CN201380049186.3A CN201380049186A CN104685437A CN 104685437 A CN104685437 A CN 104685437A CN 201380049186 A CN201380049186 A CN 201380049186A CN 104685437 A CN104685437 A CN 104685437A
- Authority
- CN
- China
- Prior art keywords
- pressure
- gas
- chamber
- engine
- stage
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 10
- 239000000446 fuel Substances 0.000 title description 3
- 239000007789 gas Substances 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000009467 reduction Effects 0.000 claims abstract description 13
- 230000033228 biological regulation Effects 0.000 claims abstract description 11
- 239000002737 fuel gas Substances 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 2
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 241001125929 Trisopterus luscus Species 0.000 claims description 3
- 210000000635 valve cell Anatomy 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract 2
- 230000008859 change Effects 0.000 description 19
- 230000004044 response Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
- G05D16/0655—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using one spring-loaded membrane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/0402—Control of fluid pressure without auxiliary power with two or more controllers mounted in series
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0633—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the properties of the membrane
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
- G05D16/2095—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power using membranes within the main valve
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Driven Valves (AREA)
- Control Of Fluid Pressure (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A pressure regulator device (10) for fuel gas plants in internal combustion engines, particularly for the automotive field, is described, the device being interposed between a tank for the gas at high pressure and a line (4) for sending the gas to the engine. The device comprises at least a first stage (1) for gas pressure reduction, bearing respective gas inlet (la) and outlet (lb) openings, the inlet opening (la) being in fluid communication with the gas tank, the pressure of the gas regulated by the first stage (2) being of an intermediate value between the gas pressure upstream and downstream of the device, at least a second stage (2) for gas pressure regulation, of the type comprising a regulating resilient membrane (15) placed downstream of the first stage (1), the membrane separating between them a first and a second chamber ( 16, 17) of the second stage (2), the regulated gas being supplied with the intermediate pressure into the first chamber (16) and the gas being delivered from the first chamber (16) at the preselected pressure for sending to the engine. The second stage (2) bears respective gas inlet (2a) and outlet (2b) openings, the outlet opening (2b) from the second stage (2) being in fluid communication with the line (4) for sending the gas to the engine. The device further comprises a secondary circuit associated with the device and connected in parallel with the second pressure regulation stage (2), the circuit comprising an auxiliary duct (21) designed to connect, with fluid communication, the second chamber (17) of the second stage (2) with the line (4) for sending gas to the engine, a valve unit comprising a valve seat (22) with a respective shutter member (23) and an electromagnetic actuator (24) operatively connected to the shutter member (23) in order to control the latter with respect to the valve seat (22), the actuator (24) being controlled by an electronic control unit (30) which, according to the pressure value at the outlet from the device (10) controls the opening of the shutter member (23) in order to regulate the gas pressure in the first chamber (16) of the second stage (2), so as to keep the pressure value at the outlet of the device stable.
Description
Invention field
The present invention relates to in internal combustion engine, be specifically used for the voltage regulator device of fuel gas in the internal combustion engine of automotive field (such as, methane) equipment, it has the feature as described in the preamble of main claim 1.
Technical background
People are known for a long time, install in the motor vehicle and to the converting apparatus of its engine supply gas, mixing can be provided thus on the whole to supply or provide the supply of single-fuel gas.Such equipment usually by high pressure receiver, take gas to suitable pressure and be used for being supplied to the decompressor/pressure regulator of engine and be used for promoting the charging of basin and guarantee that a series of conduit of the optimum operation of whole equipment and related accessories are formed.
As known to persons skilled in the art, pressure regulator is the vitals of the equipment of engine for being supplied fuel gas.Pressure regulator must be guaranteed with required amount with required pressure supply fuel gas.Specifically it must keep output pressure constant in a case where:
-to change in response to the pressure change of gradual change in input pressure and unexpected pressure both;
-in the length of life of regulator self;
-in response to the change of the air-flow needed for engine;
-in response to environment temperature or in the temperature of the heater circuit of pressure regulator/pressure reducer device slowly or unexpected change.
Pressure regulator also must be guaranteed be sensitivity for reply engine demand and respond rapidly to engine demand.The susceptibility of pressure regulator and the proper operation of accuracy to the supply equipment of injection-type engine are important, because fuel must be metered in engine exactly.
It is known for having flexible sheet to have one-level, secondary or three grades of pressure regulators reduced pressure.These regulators comprise the first order, and the described first order comprises the first chamber be communicated with fuel tank by means of the first valve, and the portion inner surface of described first chamber is formed by the first flexible sheet.As the first order, level below also comprises chamber, and its portion inner surface is formed by flexible sheet.
Stable output pressure is kept to be difficult for the passing ensured the regulator designed by this way in time; Main cause is as follows:
-flexible sheet is acted upon by temperature changes and the increase of temperature causes output pressure to reduce;
The variable effect output pressure of-input pressure, especially in one-level decompressor;
-pressure regulation is subject to the differentia influence of the air-flow needed for engine, especially when needs high flow rate;
-diaphragm is deteriorated in time, loses its intensity guaranteeing correct pressure regulation at first and elastic property.
The another shortcoming with the conventional regulator of flexible sheet is the viewpoint from intensity and reliability, they can not play a role well in the injecting type equipment of latest generation, and the conventional regulator that usually there is band diaphragm in the injecting type equipment of latest generation can not be interrogated speed and make the overvoltage of the high precision of compensation, pulse and cut-off.
Employ the problem that various solution solves steady pressure in every operating condition mentioned above in the past.
Specifically, or by being controlled by an electronic control unit revise injecting time, range of temperature is reduced by using thermostat, or by using different adjustment technology, such as replace the piston technology of diaphragm function with the mobile piston of metal material, solve the pressure change because temperature variation causes.
Partly solve the change of the output pressure that the change due to input pressure causes by decompression is divided into multiple level; Level is more, and input pressure value is more independent, but as is appreciated, the volume of regulator, web member and cost also correspondingly increase.Optionally, solve this problem by suitable bucking-out system, if input pressure change, described suitable bucking-out system will prevent output pressure from any change occurring.
Solve the decline from required pressure of the output pressure that causes because diaphragm is aging by replacing diaphragm.As time goes on the extreme hydrodynamic condition that diaphragm stands limits its life-span and performance, make must replace it after the milimeter number that vehicle is predetermined, and/or need to carry out manual recalibration to adjustment pressure, described two kinds of operations bring cost to the user of system.Optionally, have developed the piston regulator not needing to replace parts.
As mentioned above, these piston pressure-regulating devices solve some typical problems of conventional patch regulator really, but but have worse performance characteristics in other side.Specifically, the response time of making engine demand is longer, has worse dynamic response and not by higher momentary fluctuation that diaphragm absorbs simultaneously.Economic aspect is also very significant, because piston regulator cost is higher and require more complicated production technology.
Other solution listed needs to gather multiple data and the electronic processing of these signals substantially increases the software and hardware complicacy of supply system.The known actuator used be subject to high pressure change impact and therefore must be reflected in the structure in installation cost more complicated.
Finally, in recent years, have developed electronic pressure controller, the feature of described electronic pressure controller is that they change according to tentation data such as engine parameter the pressure being supplied to thrower, to widen the scope of fuel flowing and to improve the stability of output pressure.The major defect of these regulators is that they need a large amount of data, and these data of process and to the correct signal of regulator supply to guarantee that output pressure is the control algolithm of desired pressure.Equally in the case, software and hardware is very complicated, and its direct result is the increase in cost, and adds set-up time and problem.Variable required by the operation of regulator is also more, as the possible cause that this is operation failure.
Brief summary of the invention
The object of this invention is to provide the pressure regulator that can solve the problem, but do not abandon advantage and the simplification of conventional regulator in parts and installation of diaphragm technology, thus also guarantee to reduce cost.
Specifically, the object of the invention is:
-guarantee in response to ambient temperature change stable output pressure;
-guarantee in response to input pressure change stable output pressure;
-guarantee the stable output pressure of the change in response to required flowing;
-stable the output pressure guaranteeing with regulator lifetime change;
-remain diaphragm technology, and then remain the advantage that it provides, avoid costly attended operation;
-provide the device of the economy that can easily install;
-provide use simply and do not need gather for its operation mass data, because this reducing the device of the possibility of its operation failure.
These objects are realized by the voltage regulator device embodied according to appended claim.
Accompanying drawing is sketched
With reference to accompanying drawing, using in the following description of the preferred embodiment be described as limiting examples, the present invention is described in further detail, in the accompanying drawings:
Fig. 1 illustrates the overall diagram of voltage regulator device of the present invention;
Fig. 2 is the partial cross section view of the magnification ratio of details in the figure shown in Fig. 1.
Embodiment
With reference to accompanying drawing, the voltage regulator device entirety of the automobile equipment for having the engine supplied by fuel gas embodied according to the present invention represents with 10.Be intended to described device to place gas (such as methane) under high pressure between basin and engine, the two does not all illustrate in the drawings.
Described device comprises the first pressure reduction stage 1 be communicated with the basin fluid of the fuel gas of pressurization via pipeline 3; In basin, under gas is in pressure P in.
Inlet opens in the first order 1 and exit opening are represented by 1a and 1b respectively.
In the downstream of the first order 1, described device comprises the second pressure regulation level 2 with corresponding inlet opens 2a and exit opening 2b.Inlet opens 2a is communicated with the outlet 1b fluid of the first pressure reduction stage and exit opening 2b is such as communicated with user's set fluid by delivery line 4.
Two governing stages 1,2 can be contained in same main body or optionally, to be contained in two main bodys of separating of described device.
Arrange valve seat 5 at the inlet opens 1a place of the first pressure reduction stage 1, valve seat 5 has the corresponding valve 6 being directed to described seat slidably and guiding out from described seat.This valve such as can along or be parallel to the first governing stage 1 main shaft slide.Valve component 6 may be operably coupled to elasticity voltage regulation diaphragm 7, and elasticity voltage regulation diaphragm 7 is contained in the respective seat (schematically show and indicate reference number 1c) in the main body of the first pressure reduction stage 1.
In embodiments, regulate diaphragm 7 also can along or be parallel to the main axle moving of the first governing stage 1.In preferred embodiments, specifically, valve component 6 and adjustment diaphragm 7 are coaxially to each other.In embodiments, valve component 6 is mechanically connected by connecting pin or connecting link 8 with adjustment diaphragm 7.According to above-mentioned structure, flexible sheet 7 moves towards the direction of valve component 6 and causes valve component 6 move away from corresponding seat 5 and therefore open access road 1a.
Regulate diaphragm 7 that the inner volume of the first order 1 is divided into front chamber 11 and rear chamber 12, inlet opens 1a and exit opening 1b is arranged in front chamber.
The counteracting spring 13 being designed to the upwardly diaphragm 7 in the side of valve component 6 is contained in rear chamber 12.Counteracting spring 13 is calibrated according to the desired output pressure (being such as 4 bar in preferred embodiments) of the first order.
Front chamber 11 is also named " compensation chamber " because just in this chamber gas act on diaphragm 7 and make the latter and counteracting spring 13 be issued to balance at the desired output pressure (being illustrated by Pout) of gas.This front chamber 11 is communicated with the delivery channel 14 for the gas from the first order 1 via outlet 1b.Output pressure from the gas of the first order 1 be in chamber 11 gas through regulate pressure P 1, such as 4 bar.
Rear chamber 12 is separated with front chamber 11 by means of flexible sheet 7, and flexible sheet 7 also ensure that the sealing between two chambers 11,12.Rear chamber 12 can with atmosphere, and the gas that therefore it comprises is under being in atmospheric pressure, or can be communicated with motor intake manifold (not shown) fluid, and the gas that therefore it comprises is under the pressure being in described inlet manifold.
Similar with the first order 1, second governing stage 2 is also arranged in main body 2c and (only schematically shows), the inner volume of described second governing stage 2 is separated by flexible sheet 15, and flexible sheet 15 defines first (front) chamber 16 and second (afterwards) chamber 17.Inlet opens 2a and exit opening 2b is arranged in the first chamber 16.
The entrance 2a of the second governing stage 2 is communicated with chamber 16 direct flow of the second level 2 with the outlet 1b of the first order 1, does not stop the intervention of component.
Regulate diaphragm 15 to be connected to valve component 18 operably, described valve component 18 is designed to the exit opening 2b of obstruction second governing stage 2.The seat 19 engaged by valve 18 is arranged on outlet 2b, and described valve is directed to described seat slidably and guides out from described seat.This valve component 18 such as can along or be parallel to the second governing stage 2 main shaft slide.
Regulate diaphragm 15 can along or be parallel to the second governing stage 2 main body main axle moving and be connected to valve component 18, make it cause the latter to be pushed against on its oneself seat 19 towards the movement of valve component and therefore close exit passageway 2b.
Second chamber 17 holds counteracting spring 20, and counteracting spring 20 is tending towards diaphragm 15 being advanced to forward location, that is, towards the direction of valve component 18.This counteracting spring 13 is calibrated according to making the valve seat 19 being connected to diaphragm 15 can open desired pressure reduction.
First front chamber 17 is also named " compensation chamber " because just in this chamber gas act on diaphragm 15 make the latter and counteracting spring 13 and with the second chamber in be issued to balance by the pressure shown in P3 at the desired output pressure P out of gas.
According to principal character of the present invention, device 10 comprises the secondary circuit (main circuit of servo auxiliary adjustment level) be connected in parallel with the second governing stage 2, as hereafter will described in further detail.
Specifically, secondary circuit comprises: subsidiary conduit 21, and its mode that the second rear chamber 17 of the second level 2 and the pipeline 4 for gas being sent to engine are communicated with fluid is connected; And the valve cell be arranged on conduit 21.Described valve cell comprises: the valve seat 22 with corresponding valve 23, and is associated with valve for the electromagnetic actuators 24 controlling the latter relative to valve seat 22.
With reference to Fig. 2, electromagnetic actuators 24 is constructed such that it has the access road 25 be connected with the second rear chamber 17 by means of conduit portion 21, with the exit passageway 26 be connected with the conduit of the pipeline 4 of the injection unit (not shown) for gas being sent to engine via other subsidiary conduit part 21.
Access road 25 is connected with chamber 27, and chamber 27 is arranged on after the valve component 23 of electromagnetic actuators.Described valve is associated with seat 22, to its applying effect and by its closedown.Valve component 23 is also associated with counteracting spring 28, and counteracting spring 28 is tending towards valve component being advanced to the position closing described seat usually.Such configuration provides the electrovalve be associated with valve component 23, make when (electromagnetic actuators) electromagnet is not excited, counteracting spring 28 makes valve component 23 remain on the position of closedown, thus stops the fluid stream from the second chamber 17.
Valve seat 22 can be opened individually by providing electromagnet.This causes valve component 23 be shifted and therefore open valve seat 22.When opening valve seat 22, fluid flows in conduit 4.
According to the present invention, actuator 24 is controlled by electronic control unit 30, electronic control unit 30 controls opening of valve component 23 according to the force value in the exit from described device, to regulate the gaseous tension in the second chamber 17 of the second level 2, thus the force value in the exit of described device is made to keep stable.
Described control module is designed to actuation control to be sent to electrovalve 22-24, and the control of electrovalve 22-24 is according to analysis or activates with comparing of desired output force value (such as preferred value equals 2 bar) the pressure value P out such as detected by the pressure transducer be positioned in injection unit in device downstream.Described pressure transducer detected pressures and will represent that the signal of pressure detected is supplied to control module.
Second chamber 17 of the second level 2 is also communicated with the first corresponding chamber 16 fluid via (such as through diaphragm 15) through hole 31.As will be hereafter stated in further detail, hole 31 is being selected as having the xsect of amplitude lower than smallest passage xsect in secondary circuit, to guarantee that system is correctly run.
When device 10 does not work and/or air-flow is zero, the valve seat 5 of access road 1a is in closed condition, because diaphragm 7 is remained on its equilibrium position by the pressure P 1 in chamber 11, in these cases, described pressure P 1 is exactly the adjustment pressure (such as 4 bar) of the first order 1 of setting.In these cases because chamber 11 be connected to chamber 16 and the latter again and then be connected to chamber 17, chamber 17 again and then be connected to chamber 27, so the pressure in these chambers is identical, that is, is P1.Valve seat 19 is in closed condition, because the masterpiece of counteracting spring 20 is used for diaphragm 15, and diaphragm 15 and then be mechanically connected to valve component 18.Valve seat 22 keeps closed condition, because valve component 23 is advanced to forward location by counteracting spring 28 (relative to seat), and electrovalve 22-24 is not activated.
Therefore, when by system activation, electrovalve 22-24 is activated and therefore makes the valve component 23 of actuator 24 open, and opening of conduit enables the passage of the gas from chamber 17 use, and the gaseous tension P3 therefore in chamber 17 declines.As mentioned above, the area of the through hole 31 between two chambers 16,17 is the smallest passage areas be less than in secondary circuit, make likely between chamber 16,17, to produce pressure reduction, this is conducive to the latter, and described pressure reduction makes seat 19 can be opened by the supply gas from the second level 2.In fact, this pressure makes diaphragm 15 move towards punctured position, until reach balance with the pressure in power and second (afterwards) chamber 17 of spring 20, the pressure in second (afterwards) chamber 17 is suitably adjusted to supply the desired pressure as exporting.Under this equilibrium condition, diaphragm 15 is in centre position; Therefore valve component 18 also moves towards punctured position relative to its seat 19, thus opens seat.
Gas is flowing through conduit 4 under regulating pressure P 2 (2 bar), arrives injection unit.
Similarly, during the operation of system, the balance between the power acting on diaphragm 15 ensure that the desired pressure P2 as exporting.Specifically, the power acting on (surface towards chamber 17 of such as diaphragm) after diaphragm 15 is produced by pressure P 3 and spring 20.This pressure P 3 is controlled by actuator 24, actuator 24 and then controlled according to pressure signal P out by control module; This pressure P 3 is that change is to remain on expectation value by output pressure.
This kinematics of described mobile member is arranged and is made likely between valve component 18 and relative seal valve seat 19, to arrange appropriate relative positioning, therefore guarantees air-flow is in the whole opereating specification of engine under the constant pressure required for its supply.
Such as, pressure P out drops to 1.5 bar relative to expectation value 2 bar and is read by electronic control unit, described electronic control unit controls actuator 24 by extending opening of valve component 23, to reduce pressure P 3, pressure P 3 makes the passage through seat 19 open larger, to increase pressure P out and it to be remained on the expectation value of 2 bar.Therefore the control and compensation of described pressure only directly performs based on pressure signal P out; This means for arbitrary reason listed above (aging, temperature rising of diaphragm etc.), if pressure P out changes, namely rise or decline, it is just compensated immediately, thus provides the optimum stabilization of regulating system in all conditions of work.
Specifically, if the gaseous tension in exit passageway is lower than predetermined value, the diaphragm of the second level will be pushed against on elastic device 20 according to the pressure drop in the second chamber 17, and therefore valve component 18 opens the passage at outlet 2b place.
Should also be understood that if the pressure reduction in operation between P2 and P3 is very low, this just means that the air-flow between chamber 17 and pipeline 4 is also very low.Just as in known electronic pressure regulating apparatus, in fact the task of secondary circuit and actuator 24 is not guarantee a certain flow velocity, but change pressure P 3, thus make to obtain that size is less and structure is simpler and easy and therefore more cheap and more reliable circuit and actuator 24.
The advantage that should emphasize is, in the device designed by this way, do not need the input electrovalve be arranged in high-pressure conduit, because the electrovalve 22-24 of actuator instead of its function, namely, when it being closed, the pressure acted on makes both valve component 6 and valve component 18 remain on the position of closedown.
Described device is therefore, it is possible to make desired output gaseous tension such as 2 bar keep stable.In another embodiment, except pressure signal P out, electronic control unit also processes further feature data, such as one or more following parameter: the rotational speed of engine, opening time, combustion air flow, the engine torque demand of setting gas ejector within the engine.According to these data, control can be supplied to actuator 24 to make pressure P out be changed to another expectation value, such as 3 bar, and make it keep stable.
This second expectation value can have the pressure P 1 being adjusted to maximal value by the first order and be worth.
Should also be understood that control module 30 can be advantageously provided the device for controlling actuator 24, to make the top hole pressure from device 10 change to many expectation values of preliminary election, namely according to predefined function or curve.
In addition, in another embodiment, the variable current that actuator 24 adjusts by means of Electronic Control controls.In this case, the output pressure from described device such as can be proportional with average current.
Therefore, present invention achieves limited object and provide the above-mentioned advantage relative to known solution.
Claims (14)
1. one kind in internal combustion engine, be specifically used for the voltage regulator device (10) of fuel gas equipment in the internal combustion engine of automotive field, described device be placed in the gas under high pressure basin and for described gas is sent to engine pipeline (4) between, described device comprises:
-at least first order (1) of gas decompression, it is with corresponding gas access opening (1a) and exit opening (1b), described inlet opens (1a) is communicated with described gas holder tank fluid, the pressure of the described gas regulated by the described at least first order (1) is the intermediate value between described device upstream and the gaseous tension in downstream
-at least second level (2) of gas pressure regulation, its type comprises: adjustable elastic diaphragm (15), the downstream of at least first order (1) described in described adjustable elastic diaphragm (15) is placed in, described in described diaphragm makes, at least first chamber (16) of the second level (2) and the second chamber (17) separate between which, the described gas through regulating to be fed to described intermediate pressure in described first chamber (16) and described gas is used for being sent to described engine from described first chamber (16) conveying with pre-selection pressure
The described at least second level (2) is with corresponding gas access opening (2a) and exit opening (2b), described exit opening (2b) from the described at least second level (2) is communicated with described pipeline (4) fluid for described gas being delivered to described engine
It is characterized in that it comprise to be associated with described device and with at least second level (2) secondary circuit of being connected in parallel described in pressure regulation, described circuit comprises:
-subsidiary conduit (21), its make described in described second chamber (17) of at least second level (2) be connected with the mode that the described pipeline (4) for described gas being sent to described engine is communicated with fluid,
-valve cell, it is arranged on described subsidiary conduit (21), described valve cell comprises: the valve seat (22) with corresponding valve component (23), operationally be associated with described valve component (23) for the electromagnetic actuators (24) controlling described valve component (23) relative to described valve seat (22)
-described actuator (24) is controlled by electronic control unit (30), described electronic control unit (30) controls opening of described valve component (23) according to the force value from the exit of described device (10), so that the gaseous tension in described first chamber (16) of at least second level (2) described in regulating, thus the force value in the exit of described device is made to keep stable.
2. device according to claim 1, wherein said at least the first pressure reduction stage (1) is flexible sheet type.
3. device according to claim 1, wherein said at least the first pressure reduction stage (1) is piston type.
4. according to the device described in aforementioned claim, it comprises elastic device (28), described elastic device (28) is associated with described valve component (23), to promote described valve component (23) resist the effect of the electromagnet of described actuator (24) and close described valve seat (22), described electromagnet is provided to opening for described valve seat (22).
5. according to the device described in aforementioned claim, wherein provide passage (31), for the connection between described first chamber (16) and described second chamber (17) of described at least the second governing stage (2).
6. device according to claim 5, wherein said passage (31) to be arranged on described in separation at least in described first chamber (16) of the second level (2) and the described diaphragm (15) of described second chamber (17).
7., according to claim 5 or device according to claim 6, wherein said passage (31) has the cross-sectional width being less than the smallest passage xsect be arranged in described secondary circuit.
8. according to the device described in aforementioned claim, wherein in described control module (30), be provided for the device controlling described actuator (24), the described top hole pressure from described device (10) is changed to many expectation values of preliminary election, namely according to predefined function or curve.
9., according to the device described in aforementioned claim, in described control module (30), wherein provide the device controlling described actuator (24) according to one or more following parameter:
The gaseous tension in-exit,
The rotational speed of-engine,
-be arranged on the opening time of the fuel gas thrower in described engine,
-combustion air capacity,
The torque demand of-described engine.
10., according to the device described in aforementioned claim, the variable current that wherein said actuator (24) adjusts by means of Electronic Control controls.
11. according to the device described in aforementioned claim, wherein said adjustment diaphragm (15) may be operably coupled to the valve component (18) that can be engaged in and be arranged on from the valve seat (19) at described exit opening (2b) place of the described second level, make described pressure by the effect of described diaphragm (15) on described valve component (18), adjust to the described force value in the described exit from described device from the intermediate value of the described porch of the described second level.
12. according to the device described in aforementioned claim, wherein arrange valve seat (5) at described inlet opens (1a) place of described first pressure reduction stage, described valve seat (5) has the corresponding valve component (6) being directed to described seat slidably and guide out from described seat.
13. devices according to claim 12, wherein said valve component (6) may be operably coupled to elasticity voltage regulation diaphragm (7), and described elasticity voltage regulation diaphragm (7) is contained in the corresponding seat formed in the main body of described first pressure reduction stage (1).
14. according to the device described in aforementioned claim, wherein provide pressure transducer, described pressure transducer can be measured the pressure (Pout) in described device downstream and will represent that the signal transmission of described pressure (Pout) is to described control module (30).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITPD2012A000274 | 2012-09-20 | ||
| IT000274A ITPD20120274A1 (en) | 2012-09-20 | 2012-09-20 | PRESSURE REGULATOR DEVICE FOR COMBUSTIBLE GAS SYSTEMS IN ENDOTHERMIC ENGINES, PARTICULARLY FOR AUTOMOTIVE |
| PCT/IB2013/058665 WO2014045218A1 (en) | 2012-09-20 | 2013-09-19 | A pressure regulator device for fuel plants in internal combustion engines, particularly for the automotive field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104685437A true CN104685437A (en) | 2015-06-03 |
| CN104685437B CN104685437B (en) | 2019-09-13 |
Family
ID=47226290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380049186.3A Expired - Fee Related CN104685437B (en) | 2012-09-20 | 2013-09-19 | Voltage regulator device for fuel gas equipment in the internal combustion engine of automotive field |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2898388A1 (en) |
| CN (1) | CN104685437B (en) |
| IT (1) | ITPD20120274A1 (en) |
| RU (1) | RU2659119C2 (en) |
| WO (1) | WO2014045218A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193295A (en) * | 2016-03-15 | 2017-09-22 | 马达斯有限责任公司 | For controlling and adjusting control and the adjusting means that gas passes through |
| CN111566332A (en) * | 2018-01-10 | 2020-08-21 | 罗伯特·博世有限公司 | Valve assembly for gas pressure regulation, fuel system having a valve assembly for gas pressure regulation |
| CN112539870A (en) * | 2019-09-23 | 2021-03-23 | 克莱斯工业公司 | Gas supply regulator |
| CN112965537A (en) * | 2021-01-29 | 2021-06-15 | 中汽创智科技有限公司 | Control device and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10018757A1 (en) * | 2000-04-15 | 2001-10-18 | Kromschroeder Ag G | Gas valve for regulating pressure and blocking gas flow in gas line, regulates actuating pressure based on pressure upstream of actuators |
| US20040055651A1 (en) * | 2002-07-18 | 2004-03-25 | Baarda Gerrit Jan | Gas flow control |
| TW200720593A (en) * | 2005-11-23 | 2007-06-01 | Sit La Precisa Spa | Device for controlling the delivery of a combustible gas to a burner apparatus |
| CN101415931A (en) * | 2006-04-05 | 2009-04-22 | Omvl股份公司 | Device for controlling the supply of a fuel gas in internal combustion engines |
| CN101501382A (en) * | 2006-07-28 | 2009-08-05 | 意大利精密机械技术股份公司 | A device for controlling the delivery of a combustible gas to a burner apparatus |
| CN102906657A (en) * | 2010-02-23 | 2013-01-30 | Omvl股份公司 | Compensated pressure reducting device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1719700A1 (en) * | 1989-10-24 | 1992-03-15 | Горьковский Автомобильный Завод | Gas internal combustion engine feed system |
| CA2198610C (en) * | 1994-08-30 | 2002-11-12 | Stephen A. Carter | Improved two-stage pressure regulator |
| NZ522153A (en) * | 2002-10-21 | 2005-03-24 | John Blakemore Harrison | Method and apparatus for fuel injection systems with choked flow and a tapered valve. |
| RU2347094C2 (en) * | 2006-12-26 | 2009-02-20 | Владимир Алексеевич Ильченко | High pressure gas-pressure reducer |
-
2012
- 2012-09-20 IT IT000274A patent/ITPD20120274A1/en unknown
-
2013
- 2013-09-19 WO PCT/IB2013/058665 patent/WO2014045218A1/en unknown
- 2013-09-19 CN CN201380049186.3A patent/CN104685437B/en not_active Expired - Fee Related
- 2013-09-19 EP EP13801754.6A patent/EP2898388A1/en not_active Withdrawn
- 2013-09-19 RU RU2015106846A patent/RU2659119C2/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10018757A1 (en) * | 2000-04-15 | 2001-10-18 | Kromschroeder Ag G | Gas valve for regulating pressure and blocking gas flow in gas line, regulates actuating pressure based on pressure upstream of actuators |
| US20040055651A1 (en) * | 2002-07-18 | 2004-03-25 | Baarda Gerrit Jan | Gas flow control |
| TW200720593A (en) * | 2005-11-23 | 2007-06-01 | Sit La Precisa Spa | Device for controlling the delivery of a combustible gas to a burner apparatus |
| CN101415931A (en) * | 2006-04-05 | 2009-04-22 | Omvl股份公司 | Device for controlling the supply of a fuel gas in internal combustion engines |
| CN101501382A (en) * | 2006-07-28 | 2009-08-05 | 意大利精密机械技术股份公司 | A device for controlling the delivery of a combustible gas to a burner apparatus |
| CN102906657A (en) * | 2010-02-23 | 2013-01-30 | Omvl股份公司 | Compensated pressure reducting device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193295A (en) * | 2016-03-15 | 2017-09-22 | 马达斯有限责任公司 | For controlling and adjusting control and the adjusting means that gas passes through |
| CN111566332A (en) * | 2018-01-10 | 2020-08-21 | 罗伯特·博世有限公司 | Valve assembly for gas pressure regulation, fuel system having a valve assembly for gas pressure regulation |
| CN112539870A (en) * | 2019-09-23 | 2021-03-23 | 克莱斯工业公司 | Gas supply regulator |
| CN112965537A (en) * | 2021-01-29 | 2021-06-15 | 中汽创智科技有限公司 | Control device and system |
| CN112965537B (en) * | 2021-01-29 | 2024-04-09 | 中汽创智科技有限公司 | Control device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2898388A1 (en) | 2015-07-29 |
| ITPD20120274A1 (en) | 2014-03-21 |
| RU2015106846A (en) | 2016-11-10 |
| RU2659119C2 (en) | 2018-06-28 |
| WO2014045218A1 (en) | 2014-03-27 |
| CN104685437B (en) | 2019-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1264228B1 (en) | High volume electronic gas regulator | |
| US8192172B2 (en) | Flow sensing shutoff valve | |
| AU2008206789B2 (en) | Pressure regulator | |
| CN104685437A (en) | A pressure regulator device for fuel plants in internal combustion engines, particularly for the automotive field | |
| US20040099313A1 (en) | Fluid flow pressure regulator | |
| US10954904B2 (en) | Pressure-regulating device for a fuel consumption measurement system and fuel consumption measurement system | |
| CA2780209C (en) | Variable performance valve | |
| CN109715921B (en) | Gas delivery method and gas supply device | |
| CN116696566A (en) | Hydrogen supply system and method | |
| US7913973B1 (en) | Reverse flow fueldraulic valve | |
| CN102800874A (en) | Piezoelectric injector for fuel cell | |
| US20150226170A1 (en) | Pressure Regulator Damping | |
| CN114867937A (en) | Pressure regulator assembly for a system for supplying gaseous fuel to an internal combustion engine | |
| RU2820575C1 (en) | Pressure regulator assembly for system for supplying gaseous fuel to internal combustion engine | |
| US11994076B2 (en) | Multi-step pressurizing valve system | |
| JP2012099019A (en) | Pressure governing device | |
| JP2012149833A (en) | Gas governor | |
| EP2833231B1 (en) | Gas burner having a servo gas system with a hydraulic Wheatstone-bridge controlling an electric fuel supply valve, and method of operating such a gas burner | |
| CA2368957C (en) | High volume electronic gas regulator | |
| WO2022190115A1 (en) | A fuel control system | |
| US20140130915A1 (en) | Low hysteresis fluid metering valve | |
| RU49299U1 (en) | GAS PRESSURE REGULATOR | |
| CN107605605A (en) | A kind of laminated restrictor of adjustable flow | |
| CN201461141U (en) | One-level pressure relief valve | |
| KR20120137009A (en) | Gas regulator for keeping precise constrant pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |