CN108026842A - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
- Publication number
- CN108026842A CN108026842A CN201680055063.4A CN201680055063A CN108026842A CN 108026842 A CN108026842 A CN 108026842A CN 201680055063 A CN201680055063 A CN 201680055063A CN 108026842 A CN108026842 A CN 108026842A
- Authority
- CN
- China
- Prior art keywords
- cam
- internal combustion
- combustion engine
- camshaft
- local
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/06—Cutting-out cylinders
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0471—Assembled camshafts
- F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
-
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
- F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
- F02D2041/0012—Controlling intake air for engines with variable valve actuation with selective deactivation of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
- F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3058—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used the engine working with a variable number of cycles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The present invention relates to a kind of internal combustion engine (1), it includes n cylinder (2), bent axle (3) and is drivingly connected to the camshaft (4) of bent axle (3).According to the present invention：Camshaft (4) is connected to bent axle (3) so that the once rotation of bent axle (3) causes the 1/n of camshaft (4) to rotate；More sliding cams (5) are arranged on camshaft (4) for each cylinder (2), and each cam has complete cam profile (6) and local cam contour (7)；Complete cam profile (6) has n cam nose (8), and local cam contour (7) has 1 cam nose (8) of n；Control device (9) is arranged for moving more sliding cams (5)；Each part cam contour (7) relative to adjacent local cam contour (7) offset alpha=360 °/n angle；Local cam contour (7) arranges and is aligned so that they cause alternate cylinder to be closed in active state.
Description
Technical field
The present invention relates to a kind of according to claim 1 as described in the preamble with n cylinder, bent axle and with driving
Mode is connected to the internal combustion engine of the camshaft of bent axle.The invention further relates to a kind of method for operating this internal combustion engine.
Background technology
Some type of internal combustion engine is known enough.
In order to meet on future applicable maximum CO2 emission strict regulations, it is necessary to clearly effective
Step improves the efficiency of internal combustion engine.In addition to the method for " miniaturization ", cylinder, which is closed, to be also considered as being used for effectively reducing
The promising technology of fuel consumption.
A kind of method and apparatus for closing cylinder as known to DE10055595A1, the cylinder include having gas exchanges
Multiple cylinders of valve and by bent shaft-driven at least one camshaft in internal combustion engine (particularly four-stroke gasoline engine).
In this case, it is proposed that solution, wherein, when the cylinder that operation is closed, by enabling and stopping in continuous circulation
The shortcomings that with each cylinder to avoid cylinder when closing is cooled down.It is used to activate the of each individually gas exchange valve by providing
One and second cam come make for this required relatively heavy transformed load minimize, which is respectively provided with complete hoisting depth simultaneously
And the rotation offset of rotation angle with cycle of engine is arranged to, the constant component of lift of the first cam-actuated valve components,
And the lift of the second cam-actuated valve components can be transformed into zero component.
It is correspondingly expensive however, in general, it is complicated that known cylinder, which is closed, from correlation technique.
The content of the invention
Therefore, the present invention is involved in the problems, such as to be to provide a kind of the improved or at least one of internal combustion engine of correlation type in itself
Alternate embodiment, the internal combustion engine enable in particular to close the single gas of internal combustion engine with alternating sequence in a manner of technically less complicated
Cylinder.
The object of independent claims 1 solves the problems, such as according to the present invention.Advantageous embodiment is dependent claims
Purpose.
The present invention based on overall thought be：Multiple bent axle rotations (cycle) are integrated in the rotation of single camshaft, thus
Realize that alternate cylinder simple in structure is closed.For this reason, internal combustion engine has n cylinder, bent axle and to drive according to the present invention
Flowing mode is connected to the camshaft of bent axle.According to the present invention, camshaft is connected to bent axle so that the once rotation of bent axle causes convex
The 1/n rotations of wheel shaft.Therefore, in three cylinder IC engines, bent axle is completed to rotate three times, and camshaft is only completed a complete rotation
Turn.More sliding cams (multi-sliding cam) are arranged on camshaft to be had for each cylinder, each sliding cam
Complete cam profile and local cam contour.Complete cam profile has n cam nose, and local cam contour has n-1
Cam nose.Therefore, in three cylinder IC engines, complete cam profile has three cam noses, and local cam contour only has two
A cam nose.Each part cam contour makes relative to adjacent local cam contour angularly deviation angle α=360 °/n
Two adjacent local cam contours in three cylinder IC engines offset rotation angle α=120 ° angularly in relation to one another.In addition, control
Device is arranged to make more sliding cams to shift so that they can from its complete complete cam profile to its local cam contour and
Return.In the present case, local cam outline and it is aligned so that and causes alternate cylinder in active state
Close.Since local cam contour is set on more sliding cams according to the present invention and eliminates three on local cam contour
One in a or four cam noses, therefore be transformed into local cam contour from complete cam profile and make it possible to fully automated pass
Hold one's breath cylinder, without any extra conversion work.Therefore, the corresponding cloth of each local cam contours of more sliding cams is passed through
Put, can alternately be closed by axial direction simply shifting more sliding cams to realize with automatic cylinder.
In being advantageously improved in scheme for solution according to the present invention, it is individually or same that shift unit is done so as to it
The more sliding cams of shift.Especially, while conversion makes it possible to realize that cylinder is closed using very simple design, especially such as
The more sliding cams of fruit are all arranged on a sliding sleeve that can be shifted on camshaft.
Camshaft advantageously has outer shaft and interior axle, and interior axle can be adjusted axially relative to outer shaft, wherein, interior axle via pin with
At least one sliding sleeve connection.In this case, alternatively only will be single more according to whether individually or synchronously shifting
Sliding cam is arranged on the sliding sleeve, or also all more sliding cams are arranged on the sliding sleeve.
In order to which more sliding cams to its local cam contour and are returned from its complete cam profile, there is provided foregoing control
Device, wherein, the control device can be acted on for example on sliding sleeve via change-over gate, and it is more with arranging thereon
Sliding cam is changed together.Alternatively, additionally it is possible to provide, camshaft can also have outer shaft and can be with the coaxial displacement of outer shaft
Interior axle, wherein, interior axle is connected by pin with least one sliding sleeve.In this case, control device will only act upon
Interior axle is axially changed in interior axle and relative to outer shaft.
With reference to attached drawing, other key characters of the invention and advantage will be from appended claims, attached drawing and brief description of the drawings
In it is apparent.
Certainly, feature explained before and then the feature of explanation can not only be used in the combination described respectively,
And can use in other combinations or be used alone, this is without departing from the scope.
Brief description of the drawings
The preferred embodiment of the present invention is shown in the accompanying drawings, and will be explained in greater detail in the following description, wherein, phase
Same reference numeral is used to refer to same or similar or functionally equivalent component.
All figures in figure are all outlines, are shown：
Fig. 1 is horizontal stroke of the camshaft of internal combustion engine according to the present invention in the region of the complete cam profile of more sliding cams
Section,
Fig. 2 is the figure identical with Fig. 1, but is the sectional view in local cam contour,
Fig. 3 is the various cross sections of camshaft according to the present invention,
Fig. 4 is the camshaft for having axially adjustable interior axle,
Fig. 5 is the camshaft for having change-over gate,
Fig. 6 is the complete cam profile of more sliding cams according to the present invention with four cam noses,
Fig. 7 is that the automatic alternately cylinder dependent on angle of three cylinder IC engines is closed,
Fig. 8 is the corner lift schematic diagram under full load for four-cylinder internal combustion engine according to the present invention, that is to say, that convex
Wheel shaft works under full load profile,
Fig. 9 is the figure as Fig. 8, but is closed with alternate cylinder,
Figure 10 is the figure as Fig. 8, but has three cylinder IC engines,
Figure 11 is the figure as Fig. 9, but also has three cylinder IC engines.
Embodiment
As shown in the figure, internal combustion engine 1 has n cylinder 2 (referring to Fig. 7), bent axle 3 and is drivingly connected extremely according to the present invention
The camshaft 4 of bent axle 3.According to the present invention, camshaft 4 is connected to bent axle 3 via corresponding transmission mechanism (referring to Fig. 1) so that
The once rotation of bent axle 3 causes the 1/n of camshaft 4 to rotate.Therefore, if internal combustion engine 1 has three cylinders, crank rotation three
It is secondary, and 4 rotations of camshaft are once.On the contrary, in the case of four-cylinder internal combustion engine 1, bent axle 3 rotates four times, and camshaft 4 only revolves
Turn once.More sliding cams 5 are arranged on camshaft 4 (see Fig. 4 and Fig. 5) for each cylinder 2, each more sliding cams 5
With complete cam profile 6 and local cam contour 7 (referring particularly to Fig. 1 to Fig. 7).Complete cam profile 6 has n cam nose
8, therefore there are three cam noses 8 (referring to Fig. 1) in three cylinder IC engines 1, there are four cam noses 8 in four-cylinder internal combustion engine
(see Fig. 6).On the contrary, local cam contour 7 has the cam nose 8 of a smaller, as shown in Fig. 1 to Fig. 5 and Fig. 7.
Control device 9 is also configured to be used to shift more sliding cams 5, wherein, control device 9 can (referring to Fig. 4 and Fig. 5)
Including the change-over gate 10 (see Fig. 5) with corresponding handoff path 11, wherein, control device 9 is engaged with corresponding pin 12, thus
Cause the axially displaced of more sliding cams 5.Sliding cam 5 is arranged on sliding sleeve 13, and sliding sleeve 13 is slidably disposed
Therefore it can be slided together each other on camshaft 4.Alternatively, certainly also it can be envisaged that each more sliding cams 5 are arranged in
On independent sliding sleeve 13, therefore can individually it shift.
Referring to Fig. 4, it can be seen that camshaft 4 has outer shaft 14 and the interior axle 15 being axially movable relative to outer shaft 14, its
In, interior axle 15 is connected by pin 16 with least one sliding sleeve 13.In this case, control device 9 acts directly on axis
To in displaceable interior axle 15.
In order to realize that the automatic alternate cylinder of internal combustion engine 1 is closed, each part cam contour 7 is relative to adjacent
Local cam contour 7 is angularly deviated with angle [alpha]=360 °/n, as shown in especially in the cross section of Fig. 3 and Fig. 7.
Due to the arrangement of its angled offset relative to each other, the local cam contour 7 provided according to the present invention is enabled to when local
The each cylinder 2 alternately to be closed when being activated of cam contour 7 (Z1 to Zn).
If observe the internal combustion engine according to the present invention 1 shown in Fig. 1 to Fig. 5 and Fig. 7, Figure 10 and Figure 11, it can be seen that
The internal combustion engine 1 has three cylinders 2 (Z1-Z3) altogether, and more sliding cams 5 are therefore convex with three in whole cam contour 6
Nose 8 is taken turns, there are two cam noses 8 in local cam contour 7.In this case, each local cam contour 7 is relative to phase
Adjacent local cam contour is angularly deviated with angle [alpha]=360 °/3=120 °.
In contrast, four cylinders 2 (Z1-Z4) are had according to Fig. 6, Fig. 8 and Fig. 9, internal combustion engine 1 altogether, therefore this
In the case of, more sliding cams 5 have four cam noses 8 in complete cam profile 6, have three in local cam contour 7
Cam nose 8.Certainly, in the case of four-cylinder internal combustion engine 1, local cam contour 7 also can only have two cam noses 8.
If consider Fig. 3 now, it is obvious that in total of three part cam contour 7 each have be used for
Two cam noses 8 of each cylinder 2, cam nose offset relative to each other 120 °.
When internal combustion engine 1 is run, it means that as shown in fig. 7, its upper camshaft 4 or associated local cam contour 7
Cylinder 2 without the cam nose 8 projected upwards is always at closed mode.Pent cylinder 2 is marked as black.
For example, if observation Figure 10 and Figure 11, Figure 10 show the three cylinder internal combustions with total of three cylinder 2 (Z1 to Z3)
Machine, it is operated via complete cam profile 6 by camshaft 4.Therefore, during 4 rotation angle α of camshaft is 360 °,
Start each cylinder 2 to be opened, since cylinder Z1, be followed by cylinder Z2, followed by cylinder Z3.According to Figure 11, slide convex more
Wheel 5 has been displaced to its local cam contour 7 now, one in three cam noses 8 is lost, so that in the complete of camshaft 4
One in rotation in cylinder 2 (Z1, Z2 or Z3) is closed.In first solution, according to Figure 11, cylinder Z3 keeps closing
Close, and cylinder Z2 is closed in being rotated at second, cylinder Z1 is closed in third time rotates.
According to Fig. 8 and Fig. 9, the internal combustion engine 1 with total of four cylinder 2 (Z1 to Z4) is shown, cylinder is in complete cam
Operated under profile 6 with camshaft, which has total of four cam nose 8 so that complete rotation of each cylinder 2 at each 360 °
Opened once in turning.Referring to Fig. 9, it is contemplated that this point, it is clear that in this case, internal combustion engine 1 according to the present invention is by part
Cam contour 7 operates, wherein, open lift (opening lift) and occur over just whenever 3 second rotation of bent axle.
By internal combustion engine 1 according to the present invention and the more sliding cams 5 for being provided with local cam contour, can realize especially
Simple automatic, alternate cylinder is closed, without technology required so far and structural complexity in the prior art.Profit
With internal combustion engine according to the present invention, CO can be relatively easy to achieve2The reduction of discharge and corresponding cylinder are closed.
Claims (10)
1. a kind of internal combustion engine (1), has n cylinder (2), bent axle (3) and is drivingly connected to the camshaft (4) of the bent axle (3),
It is characterized in that：
The camshaft (4) is connected to the bent axle (3) so that the once rotation of the bent axle (3) causes the camshaft (4)
1/n rotation,
More sliding cams (5) are arranged on the camshaft (4) for each cylinder (2), and each sliding cam has
Complete cam profile (6) and local cam contour (7)
The complete cam profile (6) has n cam nose (8), and the local cam contour (7) has n-1 cam nose
(8),
Control device (9) is arranged for moving more sliding cams (5),
Each local cam contour (7) relative to adjacent described local cam contour (7) offset alpha angle, α=360 °/
N,
The part cam contour (7) arranges and is aligned so that they cause alternate cylinder to be closed in active state.
2. internal combustion engine according to claim 1, it is characterised in that：
The internal combustion engine (1) has three cylinders (2), and more sliding cams (5) have in the complete cam profile (6)
Three cam noses (8), and there are two cam noses (8) in the local cam contour (7).
3. internal combustion engine according to claim 2, it is characterised in that each local cam contour (7) is relative to adjacent
Described local cam contour (7) offset alpha=120 ° angle.
4. internal combustion engine according to claim 1, it is characterised in that the internal combustion engine (1) has four cylinders (2), described
More sliding cams (5) have four cam noses (8) in the complete cam profile (6), in the local cam contour (7)
With three cam noses (8).
5. internal combustion engine according to claim 4, it is characterised in that each local cam contour (7) is relative to adjacent
Described local cam contour (7) offset alpha=90 ° angle.
6. internal combustion engine according to claim 1 or 5, it is characterised in that the control device (9) is done so as to the control
Device (9) processed individually or simultaneously moves more sliding cams (5).
7. internal combustion engine according to any one of claim 1 to 6, it is characterised in that more sliding cams (5) are arranged in
On the sliding sleeve (13) that can be slided on the camshaft (4).
8. internal combustion engine according to claim 7, it is characterised in that the camshaft (4) has outer shaft (14) and being capable of phase
For the axially displaced interior axle (15) of the outer shaft (14), wherein, the interior axle (15) is via pin connection at least one slip
Sleeve (13).
9. the internal combustion engine according to claim 7 or 8, it is characterised in that be provided with and be connected to the sliding sleeve (13)
Change-over gate (10).
10. one kind is used for the method for operating internal combustion engine according to any one of the preceding claims (1), wherein,
The bent axle (3) is rotated with the speed of n times of camshaft (4),
The control device (9) is by the local cam contour (7) of more sliding cams (5) on the camshaft (4)
Activated positon is transformed into cause alternate cylinder to be closed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015218775.6 | 2015-09-29 | ||
| DE102015218775.6A DE102015218775A1 (en) | 2015-09-29 | 2015-09-29 | Internal combustion engine |
| PCT/EP2016/073325 WO2017055489A1 (en) | 2015-09-29 | 2016-09-29 | Internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108026842A true CN108026842A (en) | 2018-05-11 |
| CN108026842B CN108026842B (en) | 2020-12-01 |
Family
ID=57042884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680055063.4A Expired - Fee Related CN108026842B (en) | 2015-09-29 | 2016-09-29 | Internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN108026842B (en) |
| DE (1) | DE102015218775A1 (en) |
| WO (1) | WO2017055489A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017214791A1 (en) * | 2017-08-24 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Valve train for an internal combustion engine |
| DE102018009097A1 (en) | 2018-11-20 | 2020-05-20 | Daimler Ag | Internal combustion engine for a motor vehicle, in particular for a motor vehicle, and method for operating such an internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19606402A1 (en) * | 1996-02-21 | 1997-08-28 | Rainer Born | Selective cylinder cut-out method for IC engine |
| DE10055595A1 (en) * | 2000-11-09 | 2002-05-29 | Ina Schaeffler Kg | The cylinder shutoff has cylinders with gas exchange valves, cam shaft, driven by crank shaft, two cams, and valve drive element |
| US20120055444A1 (en) * | 2010-09-07 | 2012-03-08 | Ford Global Technologies, Llc | Multi-cylinder internal combustion engine and method for operating a multi-cylinder internal combustion engine |
| EP2834492A2 (en) * | 2012-04-02 | 2015-02-11 | Peugeot Citroën Automobiles SA | Device for partially deactivating the cylinders of an internal combustion engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011012251B4 (en) | 2011-02-24 | 2022-04-14 | Daimler Ag | Internal combustion engine valve train apparatus and method for an internal combustion engine valve train apparatus |
| DE102013207200A1 (en) | 2013-04-22 | 2014-11-06 | Mahle International Gmbh | Internal combustion engine |
-
2015
- 2015-09-29 DE DE102015218775.6A patent/DE102015218775A1/en not_active Withdrawn
-
2016
- 2016-09-29 WO PCT/EP2016/073325 patent/WO2017055489A1/en active Application Filing
- 2016-09-29 CN CN201680055063.4A patent/CN108026842B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19606402A1 (en) * | 1996-02-21 | 1997-08-28 | Rainer Born | Selective cylinder cut-out method for IC engine |
| DE10055595A1 (en) * | 2000-11-09 | 2002-05-29 | Ina Schaeffler Kg | The cylinder shutoff has cylinders with gas exchange valves, cam shaft, driven by crank shaft, two cams, and valve drive element |
| US20120055444A1 (en) * | 2010-09-07 | 2012-03-08 | Ford Global Technologies, Llc | Multi-cylinder internal combustion engine and method for operating a multi-cylinder internal combustion engine |
| EP2834492A2 (en) * | 2012-04-02 | 2015-02-11 | Peugeot Citroën Automobiles SA | Device for partially deactivating the cylinders of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017055489A1 (en) | 2017-04-06 |
| CN108026842B (en) | 2020-12-01 |
| DE102015218775A1 (en) | 2017-03-30 |
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