FI126266B - Fuel supply and flushing device for a gas engine - Google Patents

Fuel supply and flushing device for a gas engine Download PDF

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Publication number
FI126266B
FI126266B FI20145329A FI20145329A FI126266B FI 126266 B FI126266 B FI 126266B FI 20145329 A FI20145329 A FI 20145329A FI 20145329 A FI20145329 A FI 20145329A FI 126266 B FI126266 B FI 126266B
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FI
Finland
Prior art keywords
line
gas
flushing
flow space
safety valve
Prior art date
Application number
FI20145329A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20145329A (en
Inventor
Herbert Mögele
Thomas Lindermayr
Original Assignee
Man Diesel & Turbo Se
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Publication date
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Publication of FI20145329A publication Critical patent/FI20145329A/en
Application granted granted Critical
Publication of FI126266B publication Critical patent/FI126266B/en

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Classifications

    • 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
    • F02M21/0242—Shut-off valves; Check valves; Safety valves; Pressure relief valves
    • 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
    • F02M21/0227—Means to treat or clean gaseous fuels or fuel systems, e.g. removal of tar, cracking, reforming or enriching
    • 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
    • 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
    • F02M21/0293—Safety devices; Fail-safe measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0613—Switch-over from one fuel to another
    • F02D19/0621—Purging of the fuel system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Fuel Cell (AREA)
  • Feeding And Controlling Fuel (AREA)

Description

Fuel feeding and flushing device fora gas engine
The invention relates to a fuel feeding and flushing device for a gas engine according to the preamble of claim 1. The invention furthermore relates to a valve unit for such a fuel feeding and flushing device and to a gas engine with such a fuel feeding and flushing device.
Internal combustion engines, which are provided with a gaseous medium as fuel, are thoroughly known from practice and are also described as gas engines. In the cylinders of such a gas engine, a gaseous fuel is combusted, which can be fed to the cylinders of the gas engine via a gas line. In particular when in the gas engine no gaseous fuel is combusted, the gas line leading to the gas engine has to be flushed, wherein as flushing agent, according to practice, gaseous nitrogen is typically employed. The gaseous flushing agent can be introduced into the gas line via a flushing agent line, wherein the gas line and the flushing agent line are coupled via a valve unit in such a manner that in a first operating state, in which gaseous fuel is combusted in the cylinders of the gas engine, the valve unit separates the gas line and the flushing agent line from one another, whereas in a second operating state, in which no gaseous fuel is combusted in the cylinders, the valve unit couples the flushing agent line to the gas line. In gas engines known from practice there is the problem that the valve unit of a fuel feeding and flushing device, which in the first operating state separates the gas line and the flushing agent line from one another and in a second operating state couples the gas line and the flushing agent line to one another, typically comprises a leakage, wherein the leakage cannot be discharged in a defined manner. There is therefore a need for a fuel feeding and flushing device for a gas engine which can safely handle a leakage that occurs in the region of the valve unit of said device.
Starting out from this, the invention is based on the object of creating a new type of fuel feeding and flushing device for a gas engine, a valve unit of such a fuel feeding and flushing device and a gas engine with such a fuel feeding and flushing device.
This object is solved through a fuel feeding and flushing device according to claim 1. According to the invention, the gas line is designed as a double-walled gas line with a main flow space and a secondary flow space. The valve unit comprises a first safety valve, which is connected between the main flow space of the gas line and the flushing agent line in such a manner that the same in the first operating state separates the main flow space of the gas line and the flushing agent line from one another and in the second operating state connects the main flow space of the gas line and the flushing agent line with one another. The valve unit furthermore comprises a second safety valve, which is connected between the secondary flow space of the gas line and the flushing agent line in such a manner that the same in the first operating state connects the flushing agent line and secondary flow space of the gas line with one another and in the second operating state separates the flushing agent line and secondary flow space of the gas line from one another. The fuel feeding and flushing device according to the invention, the valve unit of which comprises the two safety valves, allows safe handling of leakage.
Preferentially, the second safety valve in the first operating state discharges a fuel leakage of the first safety valve from the flushing agent line into the secondary flow space of the gas line. By means of this, a fuel leakage can be discharged in a particularly advantageous manner. A flushing device for such a fuel feeding and flushing device is defined in claim 8. A gas engine with a fuel feeding and flushing device is defined in claim 10.
Preferred further developments of the invention are obtained from the subclaims and the following description. Exemplary embodiments of the invention are explained in more detail with the help of the drawing without being restricted to this. There it shows:
Fig. 1: a diagram of a fuel feeding and flushing device according to the invention in a first operating state;
Fig. 2: the fuel feeding and flushing device according to the invention in a second operating state; and
Fig. 3: a detail representation of a preferred exemplary embodiment of the fuel feeding and flushing device.
The present invention relates to a fuel feeding and flushing device for a gas engine and to a gas engine with such a fuel feeding and flushing device. Fig. 1 and 2 show highly schematic diagrams of a fuel feeding and flushing device 10 according to the invention for a gas engine in different operating states.
The fuel feeding and flushing device 10 comprises a gas line 11, with which in a first operating state a gaseous fuel 12 (see Fig. 1) can be fed to the cylinders of the gas engine. Furthermore, the fuel feeding and flushing device 10 comprises a flushing agent line 13, which serves for providing a gaseous flushing agent 14, wherein the gas line 11 and the flushing agent line 13 are coupled via a valve unit 15. In a second operating state (see Fig. 2), the flushing agent 14 is conducted via the gas line 11.
In the first operating state (see Fig. 1) of the fuel feeding and flushing device 10, in which in the cylinders of the gas engine gaseous fuel 12 is combusted, the gas line 11 serves for feeding the gaseous fuel 12 in the direction of the gas engine, wherein the valve unit 15 then is to separate the gas line 11 and the flushing agent line 13 from one another. In the second operating state (see Fig. 2) by contrast, in which in the cylinders of the gas engine no gaseous fuel is combusted, and in which the gas line 11 leading to the gas engine is to be flushed with the help of the gaseous flushing agent 14, the valve unit 15 couples the flushing agent line 13 to the gas line 11, so that gaseous flushing agent 14 kept ready by the flushing agent line 13 can then be utilised for flushing the gas line 11 leading to the gas engine.
The gas line 11 is embodied as a double-walled gas line, which comprises a radially inner main flow space 16 and a radially outer secondary flow space 17. The flushing agent line 13 is embodied as a single-walled line and accordingly merely has one flow space.
The valve unit 15 of the fuel feeding and flushing device 10 comprises a first safety valve 18, which is connected between the main flow space 16 of the double-walled gas line 11 and the flushing agent line 13 in such a manner, that the first safety valve 18 in the first operating state (see Fig. 1), in which in the gas engine gaseous fuel is combusted, separates the main flow space 16 of the gas line 11 from the flushing agent line 13, so that accordingly the gaseous fuel can be fed to the cylinders of the gas engine through the main flow space 16 of the double-walled gas line 11. In the second operating state (see Fig. 2) by contrast, the first safety valve 18 connects the main flow space 16 of the double-walled gas line 11 and the flushing agent line 13 with one another, so that via this first safety valve 18 gaseous flushing agent 14 kept ready by the flushing agent line 13 can then be introduced into the main flow space 16 of the gas line 11 for flushing the same.
In addition to the first safety valve 18, the valve unit 15 of the fuel feeding and flushing device 10 comprises a second safety valve 19. This second safety valve 19 is connected between the secondary flow space 17 of the double-walled gas line 11 and the flushing agent line 13 in such a manner that the same in the first operating state (see Fig. 1), in which gaseous fuel is conducted to the cylinders of the gas engine via the main flow space 16 of the gas line 11, connects the flushing agent line 13 and the secondary flow space 17 of the gas line 11 with one another, so that the second safety valve 19 in the first operating state then discharges a fuel leakage of the first safety valve 18, which enters the flushing agent line 13 from the main flow space 16 of the gas line 11, via a leakage collecting space 27 into the secondary flow space 17 of the double-walled gas line 11. Fig. 1 explains a fuel leakage 20 in the first operating state in dashed line routing, which can be optionally extracted via an outlet 21. In the second operating state (see Fig. 2), in which in the cylinders of the gas engine no fuel is combusted and in which the main flow space 16 of the double-walled gas line 11 is to be flushed with gaseous flushing agent 14, the second safety valve 19 separates the flushing agent line 13 from the secondary flow space 17 of the gas line 11.
In the first operating state (see Fig. 1), in which accordingly gaseous fuel 12 is to be conducted via the main flow space 16 of the gas line 11 to the cylinders of the gas engine, the pressure in the main flow space 16 of the gas line 11 is greater than the pressure in the flushing agent line 13, wherein because of this pressure drop of the first safety valve 18 then closes automatically and automatically separates the main flow space 16 of the gas line 11 from the flushing agent line 13. In the first operating state, the pressure in the flushing agent line 13 is relatively low, as a result of which the second safety valve 19 opens automatically and automatically connects the secondary flow space 17 of the gas line 11 with the flushing agent line 13. This is shown in Fig. 1, so that accordingly in the first operating state a fuel leakage 20 of the first safety valve 18 can be discharged in a defined manner into the secondary flow space 17 of the gas line 11 via the second safety valve 19.
In the second operating state (see Fig. 2), the pressure in the flushing agent line 13 is elevated, as a result of which the first safety valve 18 then opens automatically and automatically connects the main flow space 16 of the gas line 11 with the flushing agent line 13. Because of this elevated pressure in the flushing agent line 13 in the second operating state, the second safety valve 19 automatically closes and the second safety valve 19 automatically separates the secondary flow space 17 of the gas line 11 from the flushing agent line 13.
In the first operating state, i.e. in particular when in the cylinders of the gas engine gaseous fuel is combusted, the valve unit 15 ensures a closure of the gas line 11 relative to the flushing agent line 13. A leakage, which in this operating state flows via the first safety valve 18, can be discharged via the second safety valve 19 in a defined manner. The first safety valve 18 can also be described as a gas non-return valve and the second safety valve 19 can also be described as a pipe breakage safety valve. The leakage flow 20 of the fuel, which in the first operating state can flow via the first safety valve 18, is discharged in a defined manner and can therefore not escape into the environment in an uncontrolled manner. Since the fuel leakage 20 can be discharged in a defined manner, the same can be detected with the help of a sensor which is not shown, in order to thus deduce a failure of the first safety valve 18 in the case of an elevated fuel leakage 20.
In the second operating state, in which the gas line 11 is preferentially flushed with gaseous nitrogen, the first safety valve 18 automatically opens as a result of the elevated pressure in the flushing agent line 13, whereas the second safety valve 19 closes automatically. Because of this, the gaseous flushing agent 14 in the second operating state can be conducted in a defined manner and uncontrolled escaping of the same into the environment avoided.
Fig. 3 shows a concrete exemplary embodiment of a fuel feeding and flushing device 10 for a gas engine according to the invention. On the left side, the double-walled gas line 11 is shown, which defines the main flow space 16 and the secondary flow space 17. On the right side the single-walled flushing agent line 13 is shown. The valve unit 15 is connected between the gas line 11 and the flushing agent line 13 and acts on the gas line 11 via an intermediate flange 22, which is arranged between a flange 23 of the gas line 11 and a flange 24 of the valve unit 15.
Between the main flow space 16 of the gas line 11 and the flushing agent line 13, the first safety valve 18 of the valve unit 15 is connected, which in particular when there is a relatively low pressure in the flushing agent line 13, closes automatically. In Fig. 3, the first safety valve 18 acts on the intermediate flange 22 via a pipe-like adapter 25. Furthermore, Fig. 3 shows the second safety valve 19, which couples the flushing agent line 13 to the secondary flow space 17 of the gas line 11, namely in such a manner that the second safety valve 19 in the first operating state, i.e. in particular when in the gas engine gaseous fuel is combusted, is automatically opened, whereas in the second operating state, i.e. in particular when the gas line 11, namely the main flow space 16 of the same, is flushed with gaseous flushing agent 14, automatically separates the flushing agent line 13 from the secondary flow space 17 of the gas line 11.
Fig. 3 shows, that the valve unit 15 comprises an outer housing 26, wherein the first safety valve 18 and the second safety valve 19 are positioned in the housing 26. The first safety valve 18 is surrounded by the leakage collection space 27 of the valve unit 15, which the housing 26 defines. The leakage collection space 27 is coupled to the flushing agent line 13 via the second safety valve 19. The leakage collection space 27, which is formed between the first safety valve 18 of the valve unit 15 and the outer housing 26 of the valve unit 15, is permanently coupled furthermore to the secondary flow space 17 of the gas line 11 via bores 28 in the intermediate flange 22.
Although this design embodiment of Fig. 3 is simple and therefore preferred, the concept of the fuel feeding and flushing device 10 described in principle in Fig. 1 and 2 can also be implemented using a different design.
List of reference numbers 10 Fuel feeding and flushing device 11 Gas line 12 Fuel 13 Flushing agent line 14 Flushing agent 15 Valve unit 16 Main flow space 17 Secondary flow space 18 Safety valve 19 Safety valve 20 Fuel leakage 21 Outlet 22 Intermediate flange 23 Flange 24 Flange 25 Adapter 26 Flousing 27 Leakage collection space 28 Bore

Claims (10)

1. Polttoaineensyöttö- ja huuhtelulaite kaasumoottoria varten, jossa on kaasujohto (11) ja kaasujohtoon (11) venttiiliyksikön (15) kautta kytketty huuhteluainejohto (13), jolloin kaasujohto (11) toimii venttiiliyksikön (15) ensimmäisessä käyttötilassa kaasumaisen polttoaineen (12) syöttämiseksi kaa-sumoottorin sylinterien suuntaan ja venttiiliyksikön (15) toisessa käyttötilassa kaasumaisen huuhteluaineen (14) syöttämiseksi kaasumoottorin sylinterien suuntaan, tunnettu siitä, että kaasujohto (11) on muodostettu kaksiseinä-mäiseksi kaasujohdoksi, jossa on päävirtaustila (16) ja sivuvirtaustila (17); että venttiiliyksikössä (15) on ensimmäinen varmistusventtiili (18), joka on kytketty kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) välille siten, että se ensimmäisessä käyttötilassa erottaa kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) toisistaan ja toisessa käyttötilassa yhdistää kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) toisiinsa; ja että venttiiliyksikössä (15) on lisäksi toinen varmistusventtiili (19), joka on kytketty kaasujohdon sivuvirtaustilan (17) ja huuhteluainejohdon (13) välille siten, että tämä ensimmäisessä käyttötilassa yhdistää huuhteluainejohdon (13) ja kaasujohdon (11) sivuvirtaustilan (17) toisiinsa ja toisessa käyttötilassa erottaa huuhteluainejohdon (13) ja kaasujohdon sivuvirtaustilan (17) toisistaan.A fuel supply and flushing device for a gas engine comprising a gas line (11) and a rinse aid line (13) connected to the gas line (11), the gas line (11) acting in the first operating mode of the valve unit (15) to supply gaseous fuel in the direction of the cylinders of the damper and in the second operating mode of the valve unit (15) for supplying the gaseous flushing agent (14) towards the cylinders of the gas engine, characterized in that the gas line (11) is formed as a the valve unit (15) having a first safety valve (18) coupled between the main flow space (16) of the gas line (11) and the rinse aid line (13) so as to separate the main flow space (16) and the rinse aid line (13) and, in the second operating state, interconnecting the main flow space (16) of the gas line (11) and the rinse aid line (13); and that the valve assembly (15) further comprises a second safety valve (19) coupled between the gas line side flow space (17) and the rinse aid line (13) so as to connect the flushing line (13) and the gas line (11) lateral flow space (17) in the second mode of operation, separates the flushing fluid line (13) and the gas flow side flow space (17). 2. Patenttivaatimuksen 1 mukainen polttoaineensyöttö- ja huuhtelu-laite, tunnettu siitä, että toinen varmistusventtiili (19) johtaa ensimmäisessä käyttötilassa ensimmäisen varmistusventtiilin (18) polttoainevuodon (20) huuhteluainejohdosta (13) kaasujohdon (11) sivuvirtaustilaan (17).Fuel supply and flushing device according to Claim 1, characterized in that the second safety valve (19), in the first operating state, leads from the fuel leakage (20) of the first safety valve (18) to the lateral flow space (17) of the gas line (11). 3. Patenttivaatimuksen 1 tai 2 mukainen polttoaineensyöttö- ja huuhtelulaite, tunnettu siitä, että ensimmäisessä käyttötilassa paine kaasujohdon (11) päävirtaustilassa (16) on suurempi kuin paine huuhteluainejoh-dossa (13), jolloin ensimmäinen varmistusventtiili (18) tämän paineenlaskun perusteella sulkeutuu automaattisesti ja erottaa kaasujohdon (11) päävirtaustila (16) ja huuhteluainejohto (13) toisistaan automaattisesti, kun taas toisessa käyttötilassa huuhteluainejohdon (13) kohonneessa paineessa ensimmäinen varmistusventtiili (18) avautuu automaattisesti ja yhdistää kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) automaattisesti toisiinsa.Fuel supply and flushing device according to claim 1 or 2, characterized in that the pressure in the main flow state (16) of the gas line (11) in the first operating state is higher than the pressure in the flushing line (13). automatically separating the main flow mode (16) of the gas line (11) and the rinse aid line (13), while in the second operating mode at elevated pressure of the rinse line (13), the first safety valve (18) opens automatically and automatically connects the main flow mode to each other. 4. Jonkin patenttivaatimuksen 1-3 mukainen polttoaineensyöttö- ja huuhtelulaite, tunnettu siitä, että ensimmäisessä käyttötilassa paine huuh-teluainejohdossa (13) on suhteellisen pieni, jolloin toinen varmistusventtiili (19) avautuu automaattisesti ja yhdistää kaasujohdon (11) sivuvirtaustilan (17) ja huuhteluainejohdon (13) automaattisesti toisiinsa, kun taas toisessa käyttötilassa huuhteluainejohdon (13) kohonneessa paineessa toinen varmistusvent-tiili (19) sulkeutuu automaattisesti ja erottaa kaasujohdon (11) sivuvirtaustilan (17) ja huuhteluainejohdon (13) automaattisesti toisistaan.Fuel supply and flushing device according to one of Claims 1 to 3, characterized in that the pressure in the flushing pipe (13) is relatively low in the first mode of operation, wherein the second safety valve (19) opens automatically and connects the gas flow (11) (13) automatically to each other, while in the second operating state at elevated pressure of the rinse aid line (13), the second safety valve (19) closes automatically and automatically separates the lateral flow space (17) of the gas line (11) and the rinse aid line (13). 5. Jonkin patenttivaatimuksen 1 - 4 mukainen polttoaineensyöttö-ja huuhtelulaite, tunnettu siitä, että venttiiliyksikkö (15) käsittää kotelon (26), jolloin ensimmäinen varmistusventtiili (18) ja toinen varmistusventtiili (19) on sijoitettu tähän koteloon (26).Fuel supply and flushing device according to one of Claims 1 to 4, characterized in that the valve assembly (15) comprises a housing (26), wherein the first safety valve (18) and the second safety valve (19) are disposed in this housing (26). 6. Jonkin patenttivaatimuksen 1 - 5 mukainen polttoaineensyöttö-ja huuhtelulaite, tunnettu siitä, että ensimmäistä varmistusventtiiliä (18) ympäröi venttiiliyksikön (15) vuodonkeräystila (27).Fuel supply and flushing device according to one of Claims 1 to 5, characterized in that the first safety valve (18) is surrounded by a leakage collecting space (27) of the valve unit (15). 7. Patenttivaatimuksen 6 mukainen polttoaineensyöttö- ja huuhtelu-laite, tunnettu siitä, että vuodonkeräystila (27) on yhdistetty pysyvästi kaasujohdon (11) sivuvirtaustilaan (17) ja huuhteluainejohtoon (13) toisella varmistusventtiilillä (19).Fuel supply and flushing device according to Claim 6, characterized in that the leakage collection space (27) is permanently connected to the gas flow (11) lateral flow space (17) and the flushing line (13) by means of a second safety valve (19). 8. Kaasumoottorin polttoaineensyöttö- ja huuhtelulaitteen venttiiliyksikkö, joka ensimmäisessä käyttötilassa sallii kaasumaisen polttoaineen (12) syöttämisen kaasumoottorin sylinterien suuntaan ja toisessa käyttötilassa kaasumaisen huuhteluaineen (14) syöttämisen kaasumoottorin sylinterien suuntaan, tunnettu siitä, että venttiiliyksikössä (15) on ensimmäinen varmistusventtiili (18), joka on kytketty kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) välille siten, että se ensimmäisessä käyttötilassa erottaa kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) toisistaan ja toisessa käyttötilassa yhdistää kaasujohdon (11) päävirtaustilan (16) ja huuhteluainejohdon (13) toisiinsa; ja että venttiiliyksikössä (15) on lisäksi toinen varmistusventtiili (19), joka on kytketty kaasujohdon sivuvirtaustilan (17) ja huuhteluainejohdon (13) välille siten, että tämä ensimmäisessä käyttötilassa yhdistää huuhteluainejohdon (13) ja kaasujohdon (11) sivuvirtaustilan (17) toisiinsa ja toisessa käyttötilassa erottaa huuhteluainejohdon (13) ja kaasujohdon sivuvirtaustilan (17) toisistaan.A gas engine fuel supply and flushing valve assembly which, in a first mode of operation, permits the supply of gaseous fuel (12) in the direction of the gas engine cylinders and in a second mode of operation the gas flushing agent (14) in the direction of coupled between the main flow space (16) of the gas line (11) and the rinse aid line (13) so as to separate the main flow space (16) of the gas line (11) and rinse line (13) and a rinse aid line (13) to each other; and that the valve assembly (15) further comprises a second safety valve (19) coupled between the gas line side flow space (17) and the rinse aid line (13) so as to connect the flushing line (13) and the gas line (11) lateral flow space (17) in the second mode of operation, separates the flushing fluid line (13) and the gas flow side flow space (17). 9. Patenttivaatimuksen 8 mukainen venttiiliyksikkö, tunnettu jonkin patenttivaatimuksen 2-7 mukaisista tunnusmerkeistä.A valve assembly according to claim 8, characterized by the features according to any one of claims 2 to 7. 10. Kaasumoottori, tunnettu jonkin patenttivaatimuksen 1 - 7 mukaisesta polttoaineensyöttö-ja huuhtelulaitteesta.Gas engine, characterized by a fuel supply and flushing device according to any one of claims 1 to 7.
FI20145329A 2013-04-12 2014-04-07 Fuel supply and flushing device for a gas engine FI126266B (en)

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CN104100377A (en) 2014-10-15
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FI20145329A (en) 2014-10-13
KR20140123423A (en) 2014-10-22
KR101995084B1 (en) 2019-10-17
JP6258755B2 (en) 2018-01-10
CN104100377B (en) 2018-02-16

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