CN104040135A - Coolant delivery matrix - Google Patents

Coolant delivery matrix Download PDF

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Publication number
CN104040135A
CN104040135A CN201280052530.XA CN201280052530A CN104040135A CN 104040135 A CN104040135 A CN 104040135A CN 201280052530 A CN201280052530 A CN 201280052530A CN 104040135 A CN104040135 A CN 104040135A
Authority
CN
China
Prior art keywords
cylinder block
coolant
cylinder
liquid coolant
explosive motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201280052530.XA
Other languages
Chinese (zh)
Inventor
A·M·威廉姆斯
R·M·迈克达威
A·德里斯
J·伍特斯普恩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Perkins Engines Co Ltd
Original Assignee
Perkins Engines Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Perkins Engines Co Ltd filed Critical Perkins Engines Co Ltd
Publication of CN104040135A publication Critical patent/CN104040135A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • F01P3/2285—Closed cycles with condenser and feed pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P9/00—Cooling having pertinent characteristics not provided for in, or of interest apart from, groups F01P1/00 - F01P7/00
    • F01P9/02—Cooling by evaporation, e.g. by spraying water on to cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/021—Cooling cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/024—Cooling cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F01P2003/027—Cooling cylinders and cylinder heads in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P2005/105—Using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F01P2005/125—Driving auxiliary pumps electrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/14—Condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/22—Liquid cooling characterised by evaporation and condensation of coolant in closed cycles; characterised by the coolant reaching higher temperatures than normal atmospheric boiling-point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/164—Controlling of coolant flow the coolant being liquid by thermostatic control by varying pump speed
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49231—I.C. [internal combustion] engine making

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The present disclosure relates to improvements in cooling systems for internal combustion engines, and in particular to a matrix (27) suitable for providing a two phase (vapour) cooling system for an internal combustion engine. The coolant delivery matrix (27) is configured for location in the cylinder block (25) of an engine housing. The matrix comprises a manifold (28) and a plurality of pipes (29) extending from said manifold (28). The matrix is further configured to locate around at least one cylinder (12) in the cylinder block (25), said pipes (29) having at least one aperture (30) being directed to spray liquid coolant at a wall of the at least one cylinder (12).

Description

Coolant feed matrix
Technical field
The present invention relates to the improvement to the cooling system for explosive motor, relate in particular to the matrix of two-phase (steam) cooling system that is suitable for being provided for explosive motor.
Background technique
Explosive motor has at least one cylinder, and piston can move back and forth in described cylinder.Piston can drive and be connected to bent axle via connecting rod.The cylinder block of explosive motor can be the unit that comprises the multiple cylinders that limited by cylinder wall.Cylinder head can be positioned on the top of cylinder block, and cylinder head forms the top of firing chamber herein.An end of firing chamber has at least one suction port and the suction valve that is associated conventionally, and with at least one relief opening of the outlet valve being associated.Usually, suction port and relief opening are arranged in cylinder head.
Four-stroke ic engine can have aspirating stroke, and in this aspirating stroke, suction valve can make air inlet open, makes firing chamber enter the state being communicated with air inlet system fluid.During aspirating stroke, the removable cylinder head of leaving of piston in firing chamber, therefore can be drawn into fresh combustion air in firing chamber.Then, its direction of piston reverses and move to carry out compression stroke towards piston cap.
During compression stroke, suction valve and outlet valve are closed.The a certain moment during compression stroke injects fuel in firing chamber.Then, the fuel/air mixture-mixture burns in firing chamber, piston movement reversing, concurrent raw power stroke.During this power stroke, the burning energy producing can be converted into the kinetic energy of the piston movement of enhancing, and it is converted into the rotation of bent axle.After power stroke, piston movement reverses its direction move to carry out exhaust stroke towards piston cap.During exhaust stroke, suction valve cuts out and outlet valve is opened.
Engine cooling is necessary for avoiding high temperature for the damage of engine material and oiling agent.Explosive motor turns round at than the high temperature of the melting point of engine material, and heat is to being enough to light oiling agent.Engine cooling apparatus is eliminated energy fast enough to keep lower temperature, thereby can not damage motor.
In many conventional cooling systems, liquid coolant is pumped in the coolant jacket (water jacket) around cylinder head, and liquid coolant starts to be heated herein.In the time that the freezing mixture being heated leaves motor, it passes through heat exchanger---such as the radiator that is equipped with fan, and this cools down freezing mixture.Then, cooling coolant recycling is got back in motor.Coolant jacket is cast in cylinder block conventionally, so that coolant channel and cylinder block are integral, this has caused the complexity in design and the manufacture cost being associated.
In recent years, the research and development of internal combustion engine technologies have been concentrated on and reduced in fuel consumption and toxic emission.But these class research and development may cause the thermal efficiency of motor to reduce.Many improved cooling and exhaust gas heat recovery systems are proposed, to reduce cooling loss and to utilize used heat that extra power is provided.Some such systems are used two (or two) mutually cooling (being also referred to as evaporative cooling), and its example is described in US-B-5199387 and EP-A-0579553.
In such two-phase cooling system, freezing mixture is with two-phase---, liquid phase and vapour phase---be present in motor.Freezing mixture during engine warming up in liquid phase, and by heating engines to boiling point.Freezing mixture forms steam at this boiling point, and the coolant liquid forming separates with coolant vapours, and wherein said steam was directed to condenser in order to condensation before turning back to motor with liquid phase.
Also it is apparent that, the mode that can optimize energy recovery is used phase separately, and the mixture that freezing mixture can be used as two phases is back to motor.
Such cooling system can provide engine warming up faster, reduces coolant mass flow, and therefore reduces coolant system and heat sink size, reduces coolant pump power and increase the amount of the wasted energy that can be used for heat reclaiming system.
The present invention relates to the further improvement to current techniques.
Summary of the invention
Therefore the present invention provides the coolant feed matrix that is configured to the cylinder block that is arranged in motor body, multiple pipes that described matrix comprises manifold and extends from described manifold, described matrix is configured to around at least one the cylinder setting that is arranged in cylinder block, described pipe has at least one hole, and described at least one hole is oriented to liquid coolant is injected on the wall of at least one cylinder.
The present invention is also provided for the cooling system of explosive motor, and described cooling system comprises: aforementioned coolant feed matrix; Supply pump, it fluidly connects liquid coolant to be supplied to described coolant feed matrix under pressure; Extraction pump, it is suitable for the freezing mixture of vaporization to extract out from described motor body; And, condenser, the upstream that it is fluidly connected to the downstream of described extraction pump and is fluidly connected to described supply pump.
The present invention also provides explosive motor, and this explosive motor comprises housing, this housing be provided be arranged in cylinder block multiple cylinders, be attached to the cylinder head of cylinder block and aforesaid cooling system; Wherein, coolant feed matrix is arranged in described cylinder block, and described hole is oriented to liquid coolant is injected on the parts of described cylinder block and described cylinder head.
The present invention is also provided for the method for cooling aforementioned internal combustion engine, said method comprising the steps of: liquid coolant is supplied to described coolant feed matrix under pressure; The multiple jets of liquid coolant is ejected on the selected parts of motor; The freezing mixture of vaporization is extracted out from engine cylinder; Make the freezing mixture of vaporization be condensed into liquid coolant; And, make to be recycled to described coolant feed matrix through the liquid coolant of condensation.
The present invention is also provided for manufacturing the method for aforementioned internal combustion engine, and the method comprises the following steps: manufacture coolant feed matrix; Manufacture cylinder block and cylinder; Coolant feed matrix is arranged in cylinder block, described hole is oriented to liquid coolant is injected on the parts of cylinder block and head; And, cylinder head is attached to cylinder block.
Brief description of the drawings
Fig. 1 is the schematic diagram of the exemplary embodiment of explosive motor;
Fig. 2 is the schematic diagram for the cooling system of all explosive motors as illustrated in fig. 1;
Fig. 3 is the perspective view of the cylinder block of the explosive motor of Fig. 1, has wherein removed the front portion of cylinder body wall and cylinder head in order to coolant feed matrix to be shown;
Fig. 4 is the planimetric map of the cylinder block of Fig. 3, has wherein removed cylinder head;
Fig. 5 faces cross section elevation through the pipe of the coolant feed matrix of Fig. 3;
What Fig. 6 was coolant feed matrix to the connection of cylinder block faces cross section elevation;
Fig. 7 illustrates the planimetric map that enters into the supply of cylinder head from cylinder block below, shows the impact point for freezing mixture; With
Fig. 8 faces cross section elevation through the top of cylinder block and head part.
Embodiment
The present invention relates to be suitable for being provided for the matrix of two-phase (steam) cooling system of explosive motor, the focus atomizing of liquids freezing mixture in this explosive motor in cylinder block and head.Liquid coolant is vaporized in the time contacting hot engine components, and the coolant vapours producing is extracted out for condensation and recycling from cylinder block and head.Matrix can be independent of the cylinder block and head of motor to be manufactured separately, and is inserted in engine cylinder during the manufacture of motor.
With reference to Fig. 1, show the rough schematic view of exemplary explosive motor 10.Motor 10 typically comprises motor body 11, is provided with multiple cylinders 12 in this housing, and piston 13 is all installed in each cylinder.Piston 13 can motion in complex way in cylinder 12.Fuel injector 14 is arranged to extend at least in part in each cylinder 12, and can operate to inject fuel directly in cylinder 12, is positioned at before piston 13.Along with piston 13 moves towards sparger 14, described piston compression fuel, this retreats ignited fuel and promotion piston 13 in the opposite direction.Each piston 13 can be attached to bent axle 15 by means of piston rod 16, so that bent axle 15 can be along with piston 13 to-and-fro motion and rotating in cylinder 12.Can provide fuel by high-pressure service pump 17, pressurized fuel is supplied to pressurized fuel source by this high-pressure service pump---such as common rail 18---and this pressurized fuel source and then fluidly connect to supply fuel to fuel injector 14.
With reference to Fig. 2, can supply air to motor 10 by means of air intake pipe 19 equally.Air intake pipe 19 can be connected to intake manifold 20, and this intake manifold is dispensed to cylinder 12 by air via suction port (not shown), for combustion process.Motor 10 also can comprise one or more exhaust passages 21, and the relief opening (not shown) of described exhaust passage in motor body 11 extends, and leaves cylinder 12 for directing exhaust gas.Exhaust passage 21 can be supplied to high pressure turbocharger 23 via exhaust duct 22 by exhaust gas.The exhaust duct 22 that is wherein provided with high pressure turbocharger 23 can be connected to vent systems so that exhaust gas stream to be provided.
Fig. 2 is the schematic diagram for an embodiment of the cooling system 24 of all explosive motors as shown in Figure 1 10.Should be understood that, except shown explosive motor herein, cooling system 24 is also suitable for using with together with the explosive motor of various other kind of designs.
With reference to Fig. 3 to Fig. 8, carry out cooled engine 10 by means of the freezing mixture 41 that is at room temperature liquid form.A kind of suitable freezing mixture 41 can be anticorrosive additive water base, that may have some and account for freezing mixture 41 fractions substantially.Freezing mixture 41 is provided in cylinder block 25, and cylinder 12 is arranged in this cylinder block.Cylinder head 31 can be attached to cylinder block 25 by the multiple screws that are screwed in the lug boss 26 (referring to Fig. 3 and Fig. 4) of cylinder block 25.Cylinder block 25 can have Open architecture (open deck) design, have between cylinder head 31 and cylinder block 25 to seal the cylinder-top gasket engaging 32 between described cylinder head and described cylinder block.In Open architecture design, cylinder 12 separates with the outer wall of cylinder block 25.Cylinder head 31 and cylinder block 25 can comprise three structures, that is, and and top structure (not shown), middle part-structure 33 and fire resisting construction 34 (referring to Fig. 8).Fire resisting construction 34 overlays in cylinder block 25 substantially.
Fuel injector 14 can be through the hole 45,46 in the fire resisting construction 34 of cylinder head 31.Through fire resisting construction 34 parts, can between fuel injector 14 and hole 46, form sealing at fuel injector 14.But, through middle part-structure 33 parts, between fuel injector 14 and middle part-structure 33, leave gap at fuel injector 14.
By coolant feed matrix 27, freezing mixture 41 is distributed in cylinder block 25.Coolant feed matrix 27 is designed to, under pressure, the jet of liquid coolant 41 is directed to engine hot spot---such as the region of the wall of cylinder 12 and/or the fire resisting construction 34 of cylinder head 31.Matrix 27 is by forming around being positioned at the manifold 28 of cylinder 12 of cylinder block 25 and multiple pipes 29 that can extend from manifold 28.Quantity that can limiter tube 29 is to optimize the effect to engine pressure.The quantity of the pipe 29 in matrix 27 is more, and the freezing mixture pressure drop in whole motor 10 is larger.But lower pressure may mean will adversely affect " injection " intensity of freezing mixture 41.That matrix 27 can also have is different from shown design, can make freezing mixture 41 be transported to the design of desired locations.In one embodiment, matrix 27 is foundry goods, but its also can by any suitable material, in any suitable manner manufacture form.
Pipe 29 can have at least one hole 30 that extends through the sidewall of pipe from the inner chamber of pipe, and this at least one hole can direct in the cylinder block 25 of surrounding cylinder 12 by the pressurized fluidic of liquid coolant 41 or jet flow and/or be directed to the wall of cylinder 12.Although the hole 30 of sufficient amount need to be set to form effective injection of freezing mixture 41, the restricted number in hole 30 can be become make to affect coolant pressure.Manifold 28 also can have one or more holes 30, to help liquid coolant 41 to be assigned in cylinder wall or other engine hot spot.
The fire resisting construction 34 of cylinder head 31 can be provided with multiple compound angle aperture 35, each in described aperture all can with the inner chamber mating reaction of of pipe in 29.
Liquid coolant storage 43 can be arranged in cylinder block 25, and it can comprise oil cooler 44, and this oil cooler is for cooling this liquid coolant before entering matrix 27 at liquid coolant 41 via suitable pipeline 45 (referring to Fig. 6).
Coolant vapours pipeline 36 can fluidly be connected to cylinder head 31, and extraction pump 37 can be arranged in pipeline 36.The downstream of water pump/extraction pump 37 can be condenser 38.Reflux pump/supply pump 39 can be arranged in reflux line 40, and this reflux line can extend to from condenser 38 manifold 28 of the coolant feed matrix 27 that is arranged in cylinder block 25.
Coolant feed matrix 27 can be independent of cylinder block 25 and cylinder head 31 is manufactured, and can during motor 10 is manufactured, be inserted in cylinder block 25.
Industrial usability
In the time of motor 10 cold start-up, the freezing mixture 41 in cooling system 24 is in liquid phase, and during engine warming up, remains in liquid phase.When motor 10 turns round, pump 37,39 is worked to maintain liquid coolant 41 and is continued to flow to cylinder block 25.Liquid coolant 41 is pumped into the manifold 28 of the coolant feed matrix 27 that is arranged in cylinder block 25, circulates, and enter in pipe 29 around manifold 28.Some liquid coolants 41 from manifold 28 and/or the hole 30 of pipe in 29 in eject (as shown in the dotted arrow in Fig. 4), the angle in described hole is injected on the wall of cylinder 12 jet.In the time of motor 10 heating, the wall of cylinder 12 will have the temperature that makes liquid coolant 41 vaporize to form coolant vapours 42 in the time of contact, and evaporation process plays the effect of the wall of cooling cylinder 12.
Meanwhile, the jet of liquid coolant 41 also can be by the multiple apertures 35 in fire resisting construction 34.These apertures are angled (inclinations), in order to flow (as shown in the straight arrow in Fig. 8) towards the bottom surface conduct coolant 41 of central structure 33 and exhaust passage 21, the bottom surface of described central structure and exhaust passage is known motor 10 focuses.Some liquid coolants 41 are just vaporized in the time contacting with exhaust passage 21 with central structure 33, and some liquid coolant 41 Jet with downward flow directions are to fire resisting construction 34, and other vaporization occurs on this fire resisting construction.Liquid coolant 41 is taking the known hotspot in motor 10 as target, and described known hotspot can be the little gap between valve and (air inlet/exhaust) mouth.
The suction force that coolant vapours 42 forms due to pump 37 and being extracted out from cylinder block 25 and cylinder head 31.Some coolant vapours 42 (illustrating with curling arrow in Fig. 8) are via the top part that enters into cylinder head 31 around the gap of fuel injector 14, and described coolant vapours enters into coolant vapours pipeline 36 from this top part.Coolant vapours 42 from the fire resisting construction 34 of below enters into coolant vapours pipeline 36 from another accumulation point.Then, coolant vapours 42 is conducted through condenser 38 and is condensed to liquid phase, to form liquid coolant 41.Liquid coolant 41 is got back to cylinder block 25 by means of reflux pump 39 recirculation, repeats herein above-mentioned process.
Therefore cooling system 10 provides the jet of liquid coolant 41 or jet flow has been incorporated into the continuous process in cylinder block 25 and cylinder head 31.These jets or jet flow are guided to the known hotspot in described cylinder block and head, and extract consequent coolant vapours 42 out.For specific cooling requirement, injected coolant liquid 41 can be especially taking some region of motor as target.
Because can being independent of motor 10, manufactures separately coolant feed matrix 27, so this can reduce manufacture cost and complexity.

Claims (10)

1. one kind is configured to the coolant feed matrix of the cylinder block that is positioned at motor body, multiple pipes that described matrix comprises manifold and extends from described manifold, described matrix is configured to around at least one the cylinder setting that is arranged in described cylinder block, described pipe has at least one hole, and described at least one hole is oriented to liquid coolant is injected on the wall of described at least one cylinder.
2. for a cooling system for explosive motor, described cooling system comprises:
According to coolant feed matrix in any one of the preceding claims wherein;
Supply pump, it fluidly connects liquid coolant to be supplied to described coolant feed matrix under pressure;
Extraction pump, it is suitable for the freezing mixture of having vaporized to extract out from described motor body; With
Condenser, the upstream that it is fluidly connected to the downstream of described extraction pump and is fluidly connected to described supply pump.
3. one kind comprises the explosive motor of housing, described housing is provided with and is arranged in multiple cylinders of cylinder block, the cylinder head that is attached to described cylinder block and cooling system according to claim 2, wherein, described coolant feed matrix is arranged in described cylinder block, and described hole is oriented to liquid coolant is injected on the parts of described cylinder block and described cylinder head.
4. explosive motor according to claim 3, is characterized in that, described pipe and/or manifold hole point to the wall of described cylinder.
5. according to the explosive motor described in claim 3 or 4, it is characterized in that, described cylinder head comprises fire resisting construction, in this fire resisting construction, be provided with multiple apertures, the opening end mating reaction of described multiple apertures and described pipe is to be provided for that liquid coolant is ejected into the passage in described cylinder head.
6. explosive motor according to claim 5, is characterized in that, described fire resisting construction aperture is pointed to the central structure of described cylinder block and/or pointed to the exhaust duct extending from described cylinder head.
7. explosive motor according to claim 6, it is characterized in that, this explosive motor also comprises multiple fuel injectors of being arranged to inject fuel in described cylinder, wherein, each in described fuel injector extends through the hole in described central structure and have gap between this fuel injector and described central structure, and described gap provides the passage of the top part that enters into described cylinder head for the freezing mixture of vaporization.
For cooling according to a method for the explosive motor described in claim 3 to 7 any one, said method comprising the steps of:
Liquid coolant is supplied to described coolant feed matrix under pressure;
The multiple jets of liquid coolant is ejected on the selected parts of described motor;
The freezing mixture of vaporization is extracted out from described engine cylinder;
Make the freezing mixture of described vaporization be condensed into liquid coolant; And
Make to be recycled to described coolant feed matrix through the liquid coolant of condensation.
9. method according to claim 8, it is characterized in that, described explosive motor comprises the multiple cylinders that are arranged in cylinder block and the cylinder head that is attached to described cylinder block, and the described multiple jets of liquid coolant is ejected on the parts of described cylinder block and described cylinder head.
10. for the manufacture of a method for the explosive motor of claim 8 or 9, the method comprises the following steps:
Manufacture coolant feed matrix according to claim 1;
Manufacture described cylinder block and cylinder;
Described coolant feed matrix is arranged in described cylinder block, described hole is oriented to liquid coolant is injected on the parts of described cylinder block and/or described cylinder head; With
Described cylinder head is attached to described cylinder block.
CN201280052530.XA 2011-10-25 2012-10-24 Coolant delivery matrix Pending CN104040135A (en)

Applications Claiming Priority (3)

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CN113423927A (en) * 2019-03-20 2021-09-21 Avl李斯特有限公司 Internal combustion engine with at least one cylinder

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GB2495932B (en) 2014-06-18
WO2013061017A1 (en) 2013-05-02
GB201118417D0 (en) 2011-12-07
US20140261257A1 (en) 2014-09-18
GB2495932A (en) 2013-05-01

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Application publication date: 20140910