CN103511026A - Cylinder head cavity ventilation for camless engine - Google Patents

Cylinder head cavity ventilation for camless engine Download PDF

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Publication number
CN103511026A
CN103511026A CN201310248880.XA CN201310248880A CN103511026A CN 103511026 A CN103511026 A CN 103511026A CN 201310248880 A CN201310248880 A CN 201310248880A CN 103511026 A CN103511026 A CN 103511026A
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CN
China
Prior art keywords
valve
chamber
air inlet
inlet port
communicated
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
CN201310248880.XA
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Chinese (zh)
Inventor
T.A.斯皮克斯
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.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
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 GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Publication of CN103511026A publication Critical patent/CN103511026A/en
Pending legal-status Critical Current

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    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/06—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding lubricant vapours
    • 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
    • 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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • 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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
    • 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
    • Y02T10/12—Improving ICE efficiencies

Abstract

The invention provides an engine assembly, which may include an engine structure, intake and exhaust valves, hydraulically actuated valve lift mechanisms, and a valvetrain ventilation line. The engine structure may define a combustion chamber, intake and exhaust ports in communication with the combustion chamber, a crankcase, and a valvetrain chamber isolated from the crankcase. The intake valve may be located in the intake port and the exhaust valve may be located in the exhaust port. The hydraulically actuated valve lift mechanisms may be supported on the engine structure within the valvetrain chamber and engaged with the intake and exhaust valves. The valvetrain ventilation line may be in communication with the valvetrain chamber and may provide communication between the valvetrain chamber and the intake port.

Description

For the cylinder head cavity ventilation without cam engine
Technical field
The present invention relates to motor aerating system.
Background technique
This part provides about background information of the present disclosure, and this background information is prior art not necessarily.
Motor can comprise the valve system of the hydraulic actuating that control suction valve and outlet valve are opened.Various pressure condition in cylinder head cavity may cause exhaust to be inhaled into cylinder head cavity or may cause the hydraulic fluid from the valve system of hydraulic actuating to be inhaled into air inlet port and to be finally inhaled into firing chamber.
Summary of the invention
, it can comprise that the valve lifting gear of engine structure, suction valve and outlet valve, hydraulic actuating and valve are ventilation line.The Fa Xi chamber that engine structure can limit firing chamber, the air inlet port being communicated with described firing chamber and exhaust port, crankcase and isolate with described crankcase.Suction valve can be arranged in air inlet port, and outlet valve can be arranged in exhaust port.The valve lifting gear of hydraulic actuating can be that the indoor described engine structure Shang，Gai mechanism that is supported on engages with described suction valve and outlet valve at described valve.Valve is that ventilation line can be communicated with described Fa Xi chamber and the connection between described Fa Xi chamber and described air inlet port can be provided.
In another kind is arranged, engine pack can comprise that valve lifting gear, crank case vent system and the valve of engine body, cylinder head, valve bonnet, suction valve, outlet valve, hydraulic actuating are aerating system.Engine body can limit firing chamber and crankcase.Cylinder head can be connected to described engine body and can limit air inlet port and the exhaust port being communicated with described firing chamber.Valve bonnet can be connected to cylinder head.Cylinder head and valve bonnet can limit the Fa Xi chamber with crankcase isolation.Suction valve can be arranged in air inlet port, and outlet valve can be arranged in exhaust port.The valve lifting gear of hydraulic actuating can be that the indoor described cylinder head Shang，Gai mechanism that is supported on can engage with described suction valve and outlet valve at described valve.Crank case vent system can be communicated with described crankcase and the connection between described crankcase and described air inlet port can be provided.Valve is that aerating system can be communicated with described Fa Xi chamber and the connection between described Fa Xi chamber and described air inlet port can be provided.
In addition, the invention still further relates to following technological scheme.
1. an engine pack, comprising:
Engine structure, the Fa Xi chamber that it limits firing chamber, the air inlet port being communicated with described firing chamber and exhaust port, crankcase and isolates with described crankcase;
Be arranged in the suction valve of described air inlet port;
Be arranged in the outlet valve of described exhaust port;
At described valve, be that the indoor valve lifting gear ，Gai mechanism that is supported on the hydraulic actuating on described engine structure engages with described suction valve and outlet valve; And
Valve is ventilation line, and described valve is that ventilation line is communicated with described Fa Xi chamber and the connection between described Fa Xi chamber and described air inlet port is provided.
2. the engine pack as described in technological scheme 1, also comprises the intake manifold being communicated with described air inlet port, and described valve is that ventilation line provides the connection between described Fa Xi chamber and described air inlet port by described intake manifold.
3. the engine pack as described in technological scheme 1, also comprises the crank case vent system being communicated with described crankcase and described air inlet port.
4. the engine pack as described in technological scheme 3, also comprise the intake manifold being communicated with described air inlet port, described valve is that ventilation line provides the connection between described Fa Xi chamber and described air inlet port by described intake manifold, and described crank case vent system provides the connection between described crankcase and described air inlet port by described intake manifold.
5. the engine pack as described in technological scheme 1, also comprises the fresh air line being communicated with described Fa Xi chamber and fresh air sources.
6. the engine pack as described in technological scheme 1, wherein, described engine structure comprises cylinder head and is fixed to the valve bonnet of described cylinder head, and at described valve, is to limit Fa Xi chamber together with the indoor valve lifting gear that is supported on the hydraulic actuating in described cylinder head.
7. the engine pack as described in technological scheme 6, wherein, described valve bonnet defines and is connected to the breather port that described valve is ventilation line, and the connection between described Fa Xi chamber and described air inlet port is provided.
8. the engine pack as described in technological scheme 7, wherein, described valve bonnet defines the air inlet port being communicated with fresh air sources, and the connection between described Fa Xi chamber and described fresh air sources is provided.
9. the engine pack as described in technological scheme 7, also comprises the fluid separating mechanism that is positioned at described breather port place, and this fluid separating mechanism is suitable for hydraulic fluid and the air stream that leaves described Fa Xi chamber to separate.
10. the engine pack as described in technological scheme 7, also comprise pressure regulator valve, described pressure regulator valve be connected to described valve bonnet and when described valve be indoor while reaching predetermined pressure with respect to atmospheric pressure, it is chamber venting that this pressure regulator valve makes described valve.
11. engine packs as described in technological scheme 7, also comprise crank case vent system, described engine structure comprises the engine body that is connected to described cylinder head, and restriction crankcase, described crank case vent system is connected to described engine body and is communicated with described crankcase and described air inlet port.
12. engine packs as described in technological scheme 1, wherein, described crankcase comprises engine oil, and the valve lifting gear of described hydraulic actuating is communicated with the pressurized hydraulic fluid that is different from engine oil.
13. 1 kinds of engine packs, comprising:
Define the engine body of firing chamber and crankcase;
Cylinder head, described cylinder head is connected to described engine body and defines air inlet port and the exhaust port being communicated with described firing chamber;
Be connected to the valve bonnet of described cylinder head, described cylinder head and described valve bonnet define the Fa Xi chamber with described crankcase isolation;
Be arranged in the suction valve of described air inlet port;
Be arranged in the outlet valve of described exhaust port;
At described valve, be that the indoor valve lifting gear ，Gai mechanism that is supported on the hydraulic actuating in described cylinder head engages with described suction valve and outlet valve;
Crank case vent system, described crank case vent system is communicated with described crankcase and the connection between described crankcase and described air inlet port is provided; And
Valve is aerating system, and described valve is that aerating system is communicated with described Fa Xi chamber and the connection between described Fa Xi chamber and described air inlet port is provided.
14. engine packs as described in technological scheme 13, described crankcase and described Fa Xi chamber are communicated with fresh air sources respectively.
15. engine packs as described in technological scheme 13, also comprise the intake manifold that is connected to described cylinder head, described intake manifold is that aerating system is communicated with described air inlet port, fresh air sources, described crank case vent system and described valve, and described crank case vent system and described valve are that aerating system is communicated with described air inlet port by described intake manifold separately.
16. engine packs as described in technological scheme 13, wherein, described crank case vent system is connected to described engine body.
17. engine packs as described in technological scheme 13, wherein, described valve bonnet defines breather port, and this breather port provides the connection between described Fa Xi chamber and described air inlet port.
18. engine packs as described in technological scheme 17, wherein, described valve is that aerating system comprises the fluid separating mechanism that is positioned at described breather port place, this fluid separating mechanism is suitable for hydraulic fluid and the air stream that leaves described Fa Xi chamber to separate.
19. engine packs as described in technological scheme 17, wherein, described valve is that aerating system comprises pressure regulator valve, described pressure regulator valve be connected to described valve bonnet and when described valve be indoor while reaching predetermined pressure with respect to atmospheric pressure, this pressure regulator valve is suitable for opening described Fa Xi chamber and makes its ventilation.
20. engine packs as described in technological scheme 13, wherein, described crankcase comprises engine oil, and the valve lifting gear of described hydraulic actuating is communicated with the pressurized hydraulic fluid that is different from engine oil.
Other content of application will become clear from specification provided herein.Explanation in this summary of the invention and concrete example are only intended to the object for illustrating and are not intended to limit the scope of the present disclosure.
Accompanying drawing explanation
Accompanying drawing described herein is only for purpose of illustration, and is certainly not intended to limit the scope of the present disclosure.
Fig. 1 is the partial view according to engine pack of the present disclosure;
Fig. 2 is the schematic diagram of the hydrovalve module shown in Fig. 1;
Fig. 3 is included in air cylinder lid cover component in the engine pack of Fig. 1 and the perspective view of aerating system; And
Fig. 4 is the partial plan view of the air cylinder lid cover component shown in Fig. 3.
In a plurality of accompanying drawings, corresponding reference character represents corresponding parts.
Embodiment
Referring now to accompanying drawing, example of the present disclosure is described more fully.Below being described in is only exemplary in essence, and is not intended to limit the disclosure, application or purposes.
Provide exemplary embodiment to those skilled in the art are complete scope of the present invention to be described fully.Multiple detail is provided, and for example the example of concrete member, apparatus and method, makes to understand embodiment of the present disclosure completely.Those skilled in the art, by clear, do not need to use these details, and exemplary embodiment can be implemented and also should not be interpreted as the restriction to disclosure scope with multiple different form.In some exemplary embodiments, well-known process, well-known device structure and well-known technology no longer describe in detail.As used herein, term " module " refers to specific integrated circuit (ASIC), electronic circuit and/or carries out the processor of one or more software or firmware program (common processor, application specific processor or processor in groups) and storage.
When mention an element or layer another element or layer " on ", when " joining to ", " being connected to " or " being connected to " another element or layer, it can be directly this another element or layer on, engage, connect or be connected to another element or layer, or can exist intervenient element or layer.On the contrary, when mentioning an element " directly on another element or layer ", " directly joining to ", " being directly connected to " or " being directly connected to " another element or layer, can not there is not intervenient element or layer.For describing other vocabulary of interelement relation, should explain in a similar manner (for example, " ... between " relatively " directly exist ... between ", " vicinity " be " directly contiguous " etc. relatively).Term as used herein "and/or" comprises any and all combinations of one or more relevant projects of listing.
Although term first, second, third, etc. can be used for describing different elements, member, region, layer and/or section herein, these elements, member, region, layer and/or section should not limited by these terms.These terms can be only in order to distinguish element, member, region, layer or a section and another element, member, region, layer or section.The term of for example " first " used herein, " second " and other numeric item does not also mean that order or order, unless had in context clearly, represents.Therefore, the first element, member, region, layer or the section below discussed can be called the second element, member, region, layer or section, and do not deviate from the instruction of exemplary embodiment.
With reference to Fig. 1, engine pack 10 is schematically described.Engine pack 10 can comprise that engine structure 12, piston 14(show one), bent axle 16, valve module 18, intake manifold 20 and aerating system 22.Engine structure 12 can comprise engine body 24 and cylinder head 26.Engine body 24 can limit cylinder-bore 28.Piston 14 can engage and be positioned at cylinder-bore 28 with bent axle 16.In order simply to show single piston 14 and cylinder-bore 28.Yet, it should be understood that the present invention is equally applicable to any amount of piston-cylinder and arranges, and engine construction, it includes but not limited in upright arrangement and V-type structure.
Cylinder head 26 can engage and can limit with engine body 24 air inlet port and exhaust port 30,32.Piston 14, cylinder-bore 28 and cylinder head 26 can cooperate, to limit firing chamber 34.Valve module 18 can be supported by engine structure 12, and the connection between air inlet port and exhaust port 30，32Yu firing chamber 34 can be provided selectively.
Valve module 18 can comprise the valve lifting gear of hydraulic actuating, and it comprises the suction valve assembly 36 of hydraulic actuating and the exhaust valve component 38 of hydraulic actuating.The suction valve assembly 36 of hydraulic actuating can comprise the actuating assembly 40 engaging with suction valve 42, and the exhaust valve component 38 of hydraulic actuating can comprise the actuating assembly 40 engaging with outlet valve 44.Referring again to Fig. 2, can be identical for the actuating assembly 40 of suction valve and outlet valve 42,44.The structure of the suction valve of hydraulic actuating and exhaust valve component 36,38 can be similar generally.Therefore, by being described below the exhaust valve component 38 of hydraulic actuating, should be appreciated that, this description is applicable to the suction valve assembly 36 of hydraulic actuating equally.Bias component 46 can engage with outlet valve 44, and outlet valve 44 is biased to closed position.
Actuating assembly 40 can comprise the housing 48 for actuating member 50 and valve assembly 52,54,56.Actuating member 50 can engage with outlet valve 44, and control that can be based on valve assembly 52,54,56 and make outlet valve 44 displacements.The first valve assembly 52 can be communicated with source of pressurised fluid 58 and tank 60.Control module 62 can be communicated by letter with solenoid 64, to the connection between actuating member 50 and source of pressurised fluid 58 or tank 60 is provided selectively.
Engine body 24 can limit crankcase 66.Crankcase 66 can comprise engine oil, and source of pressurised fluid 58 can comprise the hydraulic fluid different from engine oil.Engine structure 12 can also comprise the valve bonnet 68 that is fixed to cylinder head 26, to limit the Fa Xi chamber 70 isolating with crankcase 66.The valve lifting component of hydraulic actuating (suction valve of hydraulic actuating and exhaust valve component 36,38) can be supported on engine structure 12, and is more specifically supported in cylinder head 26 in ，Fa Xi chamber 70.
During the power stroke of piston 14, comprise that a part (gas blowby) for the combustion gas of unburned fuel and products of combustion (such as water vapour) can be overflowed over piston 14 and enter crankcase 66.Due to Fa Xi chamber 70 and crankcase 66 isolation, overflowing can 70 isolation of Yu Faxi chamber over the gas blowby of piston 14.Yet gas blowby may also leak over the suction valve of hydraulic actuating and exhaust valve component 36,38 and enter Fa Xi chamber 70.Aerating system 22 can be from crankcase 66He Faxi chamber 70 be discharged these gases.
Engine structure 12 can limit the air inlet that leads to crankcase 66 72 being communicated with clean fresh air sources A and the breather port 74 being communicated with aerating system 22.Similarly, engine structure 12 can limit the air inlet that leads to Fa Xi chamber 70 76 being communicated with clean fresh air sources A and the breather port 78 being communicated with aerating system 22.Entrance and breather port 76,78 can be limited in valve bonnet 68.Clean fresh air sources A can comprise the air from the upstream position of intake manifold 20.In current non-limiting example, lead to the air inlet 72 of crankcase 66 and lead to Fa Xi chamber 70 ingress port 76 can with air cleaner 79 and throttler valve 81 between the gas handling system of position be communicated with.
Aerating system 22 can comprise that crank case vent system 80 and valve are aerating system 82.Crank case vent system 80 can comprise air oil separator 84, fresh air line 85 and the crank case vent pipeline 86 being communicated with crankcase 66.Fresh air line 85 can extend to from air inlet 72 gas handling system of the position between air cleaner 79 and throttler valve 81.Crank case vent pipeline 86 can extend to intake manifold 20 from air oil separator 84, and the connection between crankcase 66 and air inlet port 30 is provided.Crank case vent pipeline 86 can also comprise flow control valve 87.
As shown in Fig. 1,3 and 4, valve is that aerating system 82 can comprise that fresh air line 88, valve are ventilation line 90, fluid separating mechanism 92 and pressure regulator valve 94.Fresh air line 88 can be connected to ingress port 76 and be communicated with clean fresh air sources A, and the connection between clean fresh air sources A He Faxi chamber 70 can be provided.More specifically, fresh air line 88 can extend to from ingress port 76 gas handling system of the position between air cleaner 79 and throttler valve 81.Valve be ventilation line 90 can be connected to breather port 78 and can Yu Faxi chamber 70 and intake manifold 20 be communicated with.Valve is that ventilation line 90 can provide the connection between Fa Xi chamber 70 and air inlet port 30 by intake manifold 20.Valve is that ventilation line 90 can also comprise pressure regulator valve 91.
Fluid separating mechanism 92 can be positioned at Fa Xi chamber 70, and can be fixed to valve bonnet 68 at breather port 78 places.Fluid separating mechanism can form mist separator, and it comprises baffle plate 96, and this baffle plate 96 is positioned at Fa Xi chamber 70 and is fixed to valve bonnet 68.Baffle plate 96 can comprise the wall 98 that limits flow path, and it is conducive to remove before gas blowby leaves valve bonnet 68 fluid carrying in gas blowby.More specifically, when gas collisions baffle plate 96, fluid can be removed from gas, and is collected in Fa Xi chamber 70.
When pressure regulator valve 94 can be connected to and reach predetermined pressure with respect to atmospheric pressure in valve bonnet 68 and Dang Faxi chamber 70, this pressure regulator valve 94 can 70 ventilations of Shi Faxi chamber.Pressure regulator valve 94 can be taked various ways, includes but not limited to the safety check of spring biasing, such as spring/diaphragm device.Pressure regulator valve 94 generally Jiang Faxi chamber 70 maintains the predetermined vacuum level with respect to atmospheric pressure.
During power operation, the vacuum producing in intake manifold 20 can and enter intake manifold 20 by gas blowby sucking-off crankcase 66He Faxi chamber 70, again gas is introduced to firing chamber 34, for ensuing combustion incident.It can limiting valve be the gas blowby effect in chamber 70 that gas blowby is removed in Cong Faxi chamber 70.

Claims (10)

1. an engine pack, comprising:
Engine structure, the Fa Xi chamber that it limits firing chamber, the air inlet port being communicated with described firing chamber and exhaust port, crankcase and isolates with described crankcase;
Be arranged in the suction valve of described air inlet port;
Be arranged in the outlet valve of described exhaust port;
At described valve, be that the indoor valve lifting gear ，Gai mechanism that is supported on the hydraulic actuating on described engine structure engages with described suction valve and outlet valve; And
Valve is ventilation line, and described valve is that ventilation line is communicated with described Fa Xi chamber and the connection between described Fa Xi chamber and described air inlet port is provided.
2. engine pack as claimed in claim 1, also comprises the intake manifold being communicated with described air inlet port, and described valve is that ventilation line provides the connection between described Fa Xi chamber and described air inlet port by described intake manifold.
3. engine pack as claimed in claim 1, also comprises the crank case vent system being communicated with described crankcase and described air inlet port.
4. engine pack as claimed in claim 3, also comprise the intake manifold being communicated with described air inlet port, described valve is that ventilation line provides the connection between described Fa Xi chamber and described air inlet port by described intake manifold, and described crank case vent system provides the connection between described crankcase and described air inlet port by described intake manifold.
5. engine pack as claimed in claim 1, also comprises the fresh air line being communicated with described Fa Xi chamber and fresh air sources.
6. engine pack as claimed in claim 1, wherein, described engine structure comprises cylinder head and is fixed to the valve bonnet of described cylinder head, and at described valve, is to limit Fa Xi chamber together with the indoor valve lifting gear that is supported on the hydraulic actuating in described cylinder head.
7. engine pack as claimed in claim 6, wherein, described valve bonnet defines and is connected to the breather port that described valve is ventilation line, and the connection between described Fa Xi chamber and described air inlet port is provided.
8. engine pack as claimed in claim 7, wherein, described valve bonnet defines the air inlet port being communicated with fresh air sources, and the connection between described Fa Xi chamber and described fresh air sources is provided.
9. engine pack as claimed in claim 7, also comprises the fluid separating mechanism that is positioned at described breather port place, and this fluid separating mechanism is suitable for hydraulic fluid and the air stream that leaves described Fa Xi chamber to separate.
10. an engine pack, comprising:
Define the engine body of firing chamber and crankcase;
Cylinder head, described cylinder head is connected to described engine body and defines air inlet port and the exhaust port being communicated with described firing chamber;
Be connected to the valve bonnet of described cylinder head, described cylinder head and described valve bonnet define the Fa Xi chamber with described crankcase isolation;
Be arranged in the suction valve of described air inlet port;
Be arranged in the outlet valve of described exhaust port;
At described valve, be that the indoor valve lifting gear ，Gai mechanism that is supported on the hydraulic actuating in described cylinder head engages with described suction valve and outlet valve;
Crank case vent system, described crank case vent system is communicated with described crankcase and the connection between described crankcase and described air inlet port is provided; And
Valve is aerating system, and described valve is that aerating system is communicated with described Fa Xi chamber and the connection between described Fa Xi chamber and described air inlet port is provided.
CN201310248880.XA 2012-06-22 2013-06-21 Cylinder head cavity ventilation for camless engine Pending CN103511026A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/530423 2012-06-22
US13/530,423 US20130340733A1 (en) 2012-06-22 2012-06-22 Cylinder head cavity ventilation for camless engine

Publications (1)

Publication Number Publication Date
CN103511026A true CN103511026A (en) 2014-01-15

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CN201310248880.XA Pending CN103511026A (en) 2012-06-22 2013-06-21 Cylinder head cavity ventilation for camless engine

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US (1) US20130340733A1 (en)
CN (1) CN103511026A (en)
DE (1) DE102013211371A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760833A (en) * 1986-09-02 1988-08-02 Tatyrek Alfred F Engine crankcase vacuum check valve system for internal combustion engines
US5419301A (en) * 1994-04-14 1995-05-30 Ford Motor Company Adaptive control of camless valvetrain
US20020046743A1 (en) * 1999-04-08 2002-04-25 Mats Moren Crankcase ventilation in a supercharged internal combustion engine
US6457462B2 (en) * 2000-01-26 2002-10-01 Volvo Personvagnar Ab Combined crankcase and canister ventilation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760833A (en) * 1986-09-02 1988-08-02 Tatyrek Alfred F Engine crankcase vacuum check valve system for internal combustion engines
US5419301A (en) * 1994-04-14 1995-05-30 Ford Motor Company Adaptive control of camless valvetrain
US20020046743A1 (en) * 1999-04-08 2002-04-25 Mats Moren Crankcase ventilation in a supercharged internal combustion engine
US6457462B2 (en) * 2000-01-26 2002-10-01 Volvo Personvagnar Ab Combined crankcase and canister ventilation system

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US20130340733A1 (en) 2013-12-26
DE102013211371A1 (en) 2013-12-24

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Application publication date: 20140115