CN103518058A - Fluid system and internal combustion engine - Google Patents

Fluid system and internal combustion engine Download PDF

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Publication number
CN103518058A
CN103518058A CN201280019022.1A CN201280019022A CN103518058A CN 103518058 A CN103518058 A CN 103518058A CN 201280019022 A CN201280019022 A CN 201280019022A CN 103518058 A CN103518058 A CN 103518058A
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China
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fluid
pressure
pressure intensifier
room
intensifier
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CN201280019022.1A
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CN103518058B (en
Inventor
I·卡里奥
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Wartsila Finland Oy
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Wartsila Finland Oy
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/08—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the pneumatic type
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/08—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of non-mechanically driven auxiliary apparatus
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/025—Injectors structurally combined with fuel-injection pumps characterised by the pump drive hydraulic, e.g. with pressure amplification
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers

Abstract

The fluid system for an internal combustion engine comprises at least a first fluid circuit (1) and a second fluid circuit (2),each of the fluid circuits (1, 2) forming part of a sub-system of an internal combustion engine. The fluid system further comprises a pump (3) for supplying fluid into the system, and a pressure intensification arrangement (4) comprising at least two pressure intensifier (6, 7, 8) and having at least two alternative intensification ratios.

Description

Fluid system and internal-combustion engine
Technical field
The present invention relates to the fluid system for internal-combustion engine according to the preamble of claim 1.The invention still further relates to according to the internal-combustion engine of the preamble of other independent claims.
Background technique
Large reciprocating motor has a plurality of hydraulic operating systems of different purposes conventionally, such as lubricated, fuel oil sprays and the actuating of scavenging air valve.Each system has one or more pumps conventionally.Alternatively, high-pressure service pump is used under high pressure to different system supplying hydraulic fluid, and decompressor is used to pressure to be reduced to desired lower pressure stages in each system.In many application, for example fuel pressure increase or injection events in the fuel injection system that independently oil hydraulic circuit is controlled, liquid and flow need to be according to operating conditionss, such as engine loading and rotating speed are adjusted.The demand of different pressures level and/or flow causes the complex system of many pumps and/or makes the energy efficiency in system low.Another shortcoming of existing system is that the high-pressure service pump price of adjustable flow and/or pressure is high.
Summary of the invention
The object of this invention is to provide a kind of improved fluid system for internal-combustion engine.Described fluid system comprises at least first fluid loop and second fluid loop, and each fluid circuit forms a part for the subtense angle of internal-combustion engine.Characteristic according to the feature of fluid system of the present invention in claim 1 provides.Another target of the present invention is to provide a kind of improved internal-combustion engine.Described internal-combustion engine is characterised in that according to fluid system of the present invention.
Fluid system according to the present invention comprises that pressure strengthens structure, and this pressure strengthens structure and comprises at least one pressure intensifier and have at least two optional pressures enhancing ratios.
The present invention has some advantages.Because can use single pump to a plurality of fluid circuit accommodating fluids, so reduced the sum of pump in motor.Alternatively or extraly, some fluid circuit can have the low pressure pump that replaces high-pressure service pump, and this also contributes to reduce the cost of system.Due to the simple structure of pressure intensifier, the reliability of system is improved.The present invention can also regulate by the frequency of okperation of pilot pressure booster the volume flowrate (volume flow) in second servo loop.The pressure with at least two optional pressures enhancing ratios strengthens structure and makes it possible to the present invention for there being the fluid circuit of transformation demand.
First fluid loop is for example the oil hydraulic circuit of operation engine breathing valve, or the oil circuit of motor.Second fluid loop is for example the oil hydraulic circuit of the fuel injector of operation motor, or the oil hydraulic circuit of operation fuel oil pressurization device.There is different modes to implement different pressure and strengthen ratio.For example, fluid system can comprise having two pressure intensifiers that different pressures strengthens ratio.The another kind of pressure being to provide with pressure intensifier of selecting strengthens structure, and described pressure intensifier has at least two pressure and strengthens ratio.Described pump can be the variable displacement pump (variable displacement pump) that can change delivery pressure and flow.Pressure intensifier for example can utilize and can enable and stop using by electric controller.
According to an embodiment of the invention, each pressure intensifier comprises the first Room and the second Room.In system, at least one first Room of pressure intensifier is communicated with first fluid loop fluid, and at least one second Room is communicated with second fluid loop fluid.Each pressure intensifier is also included in first and indoorly has the first pressure surface and at the second indoor reciprocating plunger with the second pressure surface, the area of the second pressure surface is less than the area of the first pressure surface.
According to another implementation of the invention, pressure intensifier is in parallel, thereby the first Room of each pressure intensifier is communicated with first fluid loop fluid, and the second Room of each pressure intensifier is communicated with second fluid loop fluid.By two or more pressure intensifiers are in parallel, second fluid loop can constant-pressure operation.When a pressure intensifier pressurizes to the fluid in second fluid loop therein, another pressure intensifier can be loaded again.The redundancy of pressure intensifier has also improved the reliability and security of system, and this is even more important for marine vessel applications.
According to another implementation of the invention, described system comprises for optionally by the first pressure intensifier with the second pressure intensifier is in parallel or the device of series connection.In series connection situation, the first Room of the first pressure intensifier is communicated with first fluid loop fluid, and the second Room of the first pressure intensifier is communicated with the first Room fluid of the second pressure intensifier, and the second Room of the second pressure intensifier is communicated with second fluid loop fluid.Utilize this structure, can select as required different pressure to strengthen ratio.
Accompanying drawing explanation
Fig. 1 schematically shows the major component of fluid system.
Fig. 2 shows the fluid system according to embodiment of the present invention.
Fig. 3 shows the fluid system of another mode of execution according to the present invention.
Fig. 4 shows the reduced graph of piston-type pressure booster.
Embodiment
Referring now to accompanying drawing, embodiments of the present invention are described in detail.
Fig. 1 schematically shows the major component according to fluid system of the present invention.Described fluid system comprises first fluid loop 1 and second fluid loop 2.Fluid circuit 1,2nd, a part for the subtense angle of large combustion machine, and be operated in different pressure ranges.Motor is for example master motor or the donkey engine of ship.First fluid loop 1 can be for example a part for the lubricating oil system of motor, or the oil hydraulic circuit of the scavenging air valve of operation motor.Second fluid loop 2 can be for example for operating the fuel injector of motor or treating the oil hydraulic circuit that injected fuel is pressurizeed.Usually, in second fluid loop 2, needed pressure rank will be higher than first fluid loop 1.If the scavenging air valve of first fluid loop 1 operation motor, the pressure in first fluid loop 1 for example can be between 200-350bar so.If second fluid loop 2 is for pressurizeing to fuel oil, the pressure in second fluid loop 2 for example can be between 250-700bar.
This fluid system comprises for pressure fluid being fed to the pump 3 of system.In the mode of execution of Fig. 1, same pump 3 is used to by first fluid supply tube 20 to first fluid loop 1 accommodating fluid, and by second fluid supply tube 21 to second fluid loop 2 accommodating fluids.Second fluid supply tube 21 has the check valve (check valve) 24 that is not subject to the elevated pressures impact in second fluid loop 2 for the protection of pump 3 and first fluid loop 1.Pump 3 is a kind ofly can carry out with different pressure and flow velocity the variable displacement pump of accommodating fluid.Fluid is from first fluid loop 1 through the first recurrent canal 22, get back to tank 5 from second fluid loop 2 through the second recurrent canal 23.
In order to improve the pressure in second fluid loop 2, this fluid system has pressure and strengthens structure 4.In order to meet the transformation demand in second fluid loop 2, pressure strengthens structure 4 and is constructed to make to select at least two pressure to strengthen ratio.Can realize different pressure by different devices and strengthen ratio.According to an embodiment of the invention, pressure strengthens structure and has at least two pressure intensifiers.If described pressure intensifier has different pressure, strengthen ratio, can utilize the pressure intensifier that is best suited for operating mode to select desirable pressure to strengthen ratio.The various combination of all right working pressure booster.For example, for less amplification, only use one of them pressure intensifier.When the larger amplification of needs, pressure intensifier can be together in series.Pressure strengthens structure 4 can also comprise having the single pressure intensifier that at least two different pressures strengthen ratio.
In the mode of execution of Fig. 2, first fluid loop 1 is set to operate the scavenging air valve 14 of motor, and second fluid loop 2 is set to the device 15 that operation is pressurizeed to being injected into the fuel oil of motor.Pressure strengthens structure 4 and comprises three pressure intensifiers 6,7,8.The first pressure intensifier 6 and the second pressure intensifier 7 parallel connections.The first control valve 9 is between first fluid loop 1 and the first pressure intensifier 6, and the second control valve 10 is between first fluid loop 1 and the second pressure intensifier 7.The first control valve 9 is set to open and close first fluid loop 1 and is communicated with the fluid between the first pressure intensifier 6.The fluid that the second control valve 10 is set to open and close between first fluid loop 1 and the second pressure intensifier 7 is communicated with.The first pressure intensifier 6 and the second pressure intensifier 7 have different pressure and strengthen ratio.This makes to carry out different pressure according to needed pressure level in second fluid loop 2 and amplifies.The 3rd pressure intensifier 8 is disposed between the first and second pressure intensifiers 6,7 and second fluid loop 2.The 3rd control valve 11 is configured to open and close the first and second pressure intensifiers 6,7 and is communicated with the fluid between the 3rd pressure intensifier 8.In the mode of execution of Fig. 2, control valve 9,10,11 is all solenoid valve.Due to control valve 9,10,11 are used to prevent that fluid from flowing to second fluid loop 2 from first fluid loop 1, so they can be used as enabling and the device of inactive pressure intensifier 6,7,8.
Shown in Fig. 4, it is being the example of suitable pressure intensifier 6,7,8. Pressure intensifier 6,7,8 comprise the reciprocating plunger 17 with the first pressure surface A1 and the second pressure surface A2.When fluid is introduced into pressure intensifier 6,7, during the first Room 18 of 8, plunger 17 is moved.So, pressure intensifier 6,7, the fluid in the second Room 19 of 8 is pressurized. Pressure intensifier 6,7,8 pressure strengthens than the ratio that depends on the area of the first pressure surface A1 and the second pressure surface A2.
With reference to Fig. 2 and 4, the function that pressure strengthens structure 4 is described. Escape cock 25,26,27 are disposed in each control valve 9,10,11 and pressure intensifier 6,7, between 8.By escape cock 25,26,27, the first Room 18 of each pressure intensifier 6,7,8 is emptied to tank 5, to again load pressure intensifier 6,7,8.The second Room 19 of each pressure intensifier 6,7,8 and control valve 9 separately, 10,11 pipelines that couple together have the first check valve 28, with at pressure intensifier 6,7,8 allow the filling of the second Room 18 while again being loaded, but prevent that flow of pressurized fluid is to wrong direction.From each pressure intensifier 6,7,8, flow to the pipeline that the pressure fluid of second fluid loop 2 or the 3rd pressure intensifier 8 flows through and there is the second check valve 29, for preventing from second fluid loop 2 or the 3rd pressure intensifier 8 flowing to each pressure intensifier 6,7,8.
The 4th control valve 12 is set to open and close the first and second pressure intensifiers 6,7 and is communicated with the fluid between second fluid loop 2.By the 4th control valve 12, the three pressure intensifiers 8, can be bypassed or connect with the first pressure intensifier 6 or the second pressure intensifier 7.If the 3rd pressure intensifier 8 is bypassed, the total pressure enhancing that pressure strengthens structure 4 is than strengthening than identical with the pressure that is used to the pressure intensifier 6,7 in the first pressure booster stage.If the 3rd pressure intensifier 8 and the first or second pressure intensifier 6,7 series connection, total pressure strengthens the product that strengthens ratio than the pressure that is first and second grades.Therefore, utilize according to the pressure of Fig. 2 mode of execution and strengthen structure, can obtain four different pressure and strengthen ratio.All control valve 9,10,11,12 and escape cocks 25,26,27 can be automatically controlled.
In the mode of execution of Fig. 3, pressure strengthens structure 4 and has the first pressure intensifier 6 and the second pressure intensifier 7.Optionally in parallel or series connection of pressure intensifier 6,7.The function of this mode of execution is described with reference to figure 3 and 4.Which in choice for use the first and second pressure intensifiers 6,7 the first control valve 9 and the second control valve 10 are used to and improve the pressure in second fluid loop 2.When the first control valve 9 is opened and when the second control valve 10 is closed, the first pressure intensifier 6 is in use.It is to use separately or use together with the second pressure intensifier 7 that the 3rd control valve 11 is used for controlling the first pressure intensifier 6 with the 4th control valve 12.Therefore control valve 9,10,11,12 serves as optionally pressure intensifier 6,7, the device of 8 in parallel or series connection.If the 3rd control valve 11 is closed and the 4th control valve 12 is opened, the first pressure intensifier 6 and the second pressure intensifier 7 are connected.Fluid flows into the first Room 18 of the second pressure intensifier 7 from the second Room 19 of the first pressure intensifier 6.Therefore the total pressure enhancing that pressure strengthens structure 4 is than the product that is the pressure enhancing ratio of two pressure intensifiers 6,7.If the pressure of the first and second pressure intensifiers 6,7 strengthens than different, by this pressure, strengthen structure 4 so and can obtain three kinds of different pressure enhancing ratios.Still in this embodiment, pressure intensifier 6,7 has the escape cock 25,26 that the pressure intensifier of making 6,7 can be loaded again, and direct pressurized fluid is to the check valve 28,29 of correct direction.Pressure strengthens structure 4 can also comprise plural pressure booster stage.For example, thus three pressure intensifiers can be set can be selectively connected pressure intensifier with the form of the combination in any of in parallel, three pressure intensifier series connection or two pressure intensifier series connection.
Those having ordinary skill in the art will appreciate that and the invention is not restricted to described mode of execution before, but can change within the scope of the claims.For example, fluid system has plural fluid circuit.Other fluid circuit has the pressure level identical or different with the pressure level of the first and second fluid circuits.

Claims (11)

1. the fluid system for internal-combustion engine, described fluid system comprises at least first fluid loop (1) and second fluid loop (2), each fluid circuit (1,2) all formed a part for the subtense angle of internal-combustion engine, described fluid system also comprises for the pump to system accommodating fluid (3), and comprises at least two pressure intensifiers (6,7,8) and the pressure with at least two optional enhancing ratios strengthen structure (4)
It is characterized in that, described pressure strengthens structure and comprises at least the first pressure intensifier (6) and the second pressure intensifier (7), each pressure intensifier (6, 7) all comprise the first Room (18) and the second Room (19), at least one first Room (18) is communicated with first fluid loop (1) fluid, and at least one second Room (19) is communicated with second fluid loop (2) fluid, each pressure intensifier (6, 7) be all also included in the reciprocating plunger (17) that there is the first pressure surface (A1) in the first Room (18) and there is the second pressure surface (A2) in the second Room (19), the area of the second pressure surface (A2) is less than the area of the first pressure surface (A1).
2. fluid system according to claim 1, is characterized in that, first fluid loop (1) is the oil hydraulic circuit (1) of the scavenging air valve (14) of the described internal-combustion engine of operation.
3. fluid system according to claim 1, is characterized in that, first fluid loop (1) is the oil circuit of described motor.
4. according to the fluid system described in any one in claim 1-3, it is characterized in that, second fluid loop (2) are the oil hydraulic circuits of the fuel injector (15) of the described internal-combustion engine of operation.
5. according to the fluid system described in any one in claim 1-3, it is characterized in that, second fluid loop (2) are the oil hydraulic circuits of operation fuel oil pressurization device (16).
6. according to the fluid system described in any one in aforementioned claim, it is characterized in that, described pressure intensifier (6,7,8) has different enhancing ratios.
7. according to the fluid system described in any one in aforementioned claim, it is characterized in that, described pressure intensifier (6,7,8) is by parallel, make each pressure intensifier (6,7,8) the first Room (18) is all communicated with first fluid loop (1) fluid, each pressure intensifier (6,7,8) the second Room (19) is all communicated with second fluid loop (2) fluid.
8. according to the fluid system described in any one in claim 1-6, it is characterized in that, this system comprises for optionally the first pressure intensifier (6) and the second pressure intensifier (7) is in parallel or series connection, first Room (18) of the first pressure intensifier (6) is communicated with first fluid loop (1) fluid, second Room (19) of the first pressure intensifier (6) is communicated with the first Room (18) fluid of the second pressure intensifier (7), and the device (9 that second Room (19) of the second pressure intensifier (7) is communicated with second fluid loop (2) fluid, 10,11,12).
9. according to the fluid system described in any one in aforementioned claim, it is characterized in that, this system comprise for enable or the described pressure intensifier (6,7,8) of stopping using can electric controller (9,10,11).
10. according to the fluid system described in any one in aforementioned claim, it is characterized in that, each pressure intensifier (6,7,8) all has at least two different enhancing ratios.
11. 1 kinds of internal-combustion engines, is characterized in that comprising the fluid system according to described in any one in claim 1-10.
CN201280019022.1A 2011-04-21 2012-03-01 Fluid system and internal-combustion engine Active CN103518058B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20115391 2011-04-21
FI20115391A FI20115391A0 (en) 2011-04-21 2011-04-21 Fluid system and internal combustion engine
PCT/FI2012/050205 WO2012143601A1 (en) 2011-04-21 2012-03-01 Fluid system and internal combustion engine

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CN103518058A true CN103518058A (en) 2014-01-15
CN103518058B CN103518058B (en) 2016-03-16

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EP (1) EP2699789B1 (en)
KR (1) KR101751674B1 (en)
CN (1) CN103518058B (en)
FI (1) FI20115391A0 (en)
WO (1) WO2012143601A1 (en)

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