CN1291137C - Selectable 2 stroke/4 stroke camshaft drive system - Google Patents
Selectable 2 stroke/4 stroke camshaft drive system Download PDFInfo
- Publication number
- CN1291137C CN1291137C CNB018026931A CN01802693A CN1291137C CN 1291137 C CN1291137 C CN 1291137C CN B018026931 A CNB018026931 A CN B018026931A CN 01802693 A CN01802693 A CN 01802693A CN 1291137 C CN1291137 C CN 1291137C
- Authority
- CN
- China
- Prior art keywords
- camshaft
- planetary gear
- combustion engine
- internal
- stroke
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
- F02B69/06—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different cycles, e.g. convertible from two-stroke to four stroke
-
- 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
-
- 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
- F01L1/022—Chain drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/024—Belt drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
-
- 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
- F01L2311/00—Differential gears located between crankshafts and camshafts for varying the timing of valves
-
- 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
- F01L2710/00—Control of valve gear, speed or power
- F01L2710/003—Control of valve gear for two stroke engines
-
- 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
- F01L2800/00—Methods of operation using a variable valve timing mechanism
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
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
A camshaft drive system is described for a selectable two-stroke/four-stroke internal combustion engine with exhaust and intake poppet valves opened and closed by at least one camshaft. In the system, the camshaft is connected permanently to a planetary gear set (10, 12, 14, 15, 16) which is driven continuously by the engine crankshaft (20), and means are provided for setting the planetary gear set in one of two selectable stable modes to function either as a gearbox or as a rigid coupling.
Description
FIELD OF THE INVENTION
The present invention relates to a kind of camshaft drive system that is used to handle internal-combustion engine according to two stroke cycle or four stroke cycle.
The background of invention
Common internal-combustion engine is according to thermodynamic principle, according to two stroke cycle or four stroke cycle work, and be divided into two stroke IC engine or quartastroke engine usually respectively.The internal-combustion engine of two kinds of forms can use the various fuel works that comprise gasoline, diesel oil, alcohol and gaseous fuel.Fuel can utilize various devices to send in the internal-combustion engine.These devices comprise vaporizer and spray into the fuel injector in the air input system and directly spray into fuel injector in the cylinder of internal-combustion engine.Fuel and AIR MIXTURES can be lighted with the whole bag of tricks that comprises spark ignition and ignition by compression.The circulation form of each internal-combustion engine all has different merits and demerits, this just becomes is considering various parameters---for example specific power, fuel consumption, toxic emission, noise, vibration, when engine size, weight and cost etc., determine that any circulation form is more suitable for using so frequent the question in dispute in automobile.At present, which kind of engine cycle form the auto-maker must at first determine to adopt, and then the design internal-combustion engine.
The invention outline
Consider the advantages with two kinds of engine cycle forms, a kind of camshaft drive system that is used for the selectable 2 stroke/4 stroke internal-combustion engine is provided, the exhaust of this internal-combustion engine and intake poppet valve are opened and closed by at least one camshaft; Wherein, this camshaft for good and all is connected with the planet gear train that bent axle by internal-combustion engine drives continuously; And wherein, be provided with the device that this planetary gear set is set at two kinds of a kind of patterns in the selectable stable mode, make this planetary gear set play a gear-box or a rigid coupling.
In the present invention, this camshaft by this planetary gear set according to selected pattern, with the speed identical, or with half speed driving of I. C. engine crankshaft speed with I. C. engine crankshaft; And, utilize this planetary gear set, with camshaft with respect to the phase adjusted of I. C. engine crankshaft angular orientation to position that exhaust and air inlet exchange adapt with two-stroke or four-stroke engine cycle respectively.
Best, planetary gear set and camshaft are installed with one heart.Another kind of mode is that planetary gear set can be installed with one heart with the bent axle of internal-combustion engine, perhaps can on the spot be installed in the next door of camshaft and bent axle separately.
Utilize the planetary gear set drives camshaft that various structure can be arranged according to the present invention.Any one parts in three parts of internal-combustion engine input and planetary gear set are connected, and they are ring gear, central gear or planetary gear carrier; Can be connected in any one parts in all the other two parts to the output of camshaft; And mode setting device is last remaining parts, and these parts are exactly the reaction member between the input and output parts.
At planetary gear carrier is under the situation of reaction member, the idler gear that meshes with planetary pinion is set in addition, so that ring gear and central gear are rotated at equidirectional on planetary gear carrier.
In the present invention, the device that is used for this planetary gear set has been arranged to a gear-box effect is to make the reaction member of this planetary gear set keep actionless device with respect to a fixed reference, so that each gear in this planetary gear set is relatively rotated with respect to each other.And be used for this planetary gear set has been arranged to the device of rigid coupling effect, be to make the reaction member of this planetary gear set keep actionless device with respect to the input block that rotates or the output block of rotation, so that make the locking toward each other in this planetary gear set of each gear, and whole assembly rotates together.
In a preferred embodiment, this ring gear is an input block, and with half speed driving of crankshaft speed, this central gear is the output block that is connected with camshaft by internal-combustion engine for it; And planetary gear carrier is the reaction member of this planetary gear set.Speed ratio between this ring gear and the central gear is 1: 2.
In this example, be provided with the device of the support of planetary gear set being set for two a kind of patterns in the selectable stable mode, make under two-stroke mode, this support keeps transfixion with respect to the internal-combustion engine frame, thereby this planetary gear set plays a gear-box; And under four-stoke mode, this support keeps transfixion with respect to the ring gear of rotation, so that make whole planetary gear set play the shaft coupling of a rigidity.In addition, in pattern change process, the phase place of adjustment cam axle and speed are provided with a device, are used to make this support to slide with respect to the internal-combustion engine frame and rotate or slide and rotate with respect to the input and output parts that rotate.
On-stream, when the selection two-stroke mode, at first make in four-stoke mode to keep static support to slide and rotation with respect to the ring gear that rotates with respect to the ring gear that rotates; Little by little reach two-stroke mode so that the phase place of adjustment cam axle and speed make, after reaching the position of two-stroke mode, this support just keeps transfixion with respect to the internal-combustion engine frame.In this case, this planetary gear set plays a gear-box; At this moment, this camshaft is driven rotation with the speed of two times of this ring gear speed; And consistent with two stroke cycle, the every rotation of internal-combustion engine once according to the timing of valve under the predetermined two-stroke mode, opens and closes once with each internal combustion engine valve of this camshaft.
Except above-mentioned, finish the comprehensive of the various running parameters of carrying out the necessary internal-combustion engine of two stroke cycle, this be skilled the people all clearly.For example, need a pressurized machine, to supply with forced air, for the gas exchange process use of two stroke cycle; And the frequency and the time of correspondingly arranging fuel injection and/or spark ignition.
When selecting four-stoke mode, at first making in two-stroke mode keeps static support to slide and rotation with respect to the internal-combustion engine frame with respect to the internal-combustion engine frame, make with the phase place of adjustment cam axle and speed and little by little to reach four-stoke mode, after reaching the position of four-stoke mode, make this support keep transfixion with respect to the ring gear that rotates.In this case, this planetary gear set plays the shaft coupling of a rigidity, at this moment, the speed that this camshaft is driven rotation is identical with the speed of ring gear, and it is consistent with four stroke cycle, according to the timing of valve under the predetermined four-stoke mode, the every rotation twice of internal-combustion engine opens and closes once with the valve of each internal-combustion engine of this camshaft.
Except above-mentioned, finish the comprehensive of the various running parameters of carrying out the necessary internal-combustion engine of four stroke cycle, this be skilled the people all clearly.In this case, the pressurized machine in the time of can using two stroke operation is supplied with the air of supercharging as the four-stroke operation.
Above example is just by a kind of structure in many possibility structures of the camshaft of the selectable planetary gear set drives of pattern of the present invention.In another example, planetary gear carrier is that central gear is the output block that is connected with camshaft with half the input block of speed driving of crankshaft speed, and ring gear then is the reaction member of planetary gear set.Speed ratio between support and the central gear is 1: 2.
In this case, ring gear can be set a kind of pattern in two kinds of selectable patterns for, makes under two-stroke mode, and this ring gear keeps transfixion with respect to the internal-combustion engine frame, make this planetary gear set play a gear-box, and camshaft is with the speed driving of bent axle.Under four-stoke mode, this ring gear keeps transfixion with respect to this support, makes whole planetary gear set play a rigid coupling, and camshaft rotates with half speed driving of crankshaft speed.
In another example, this central gear is an input block, drives with crankshaft speed; And this planetary gear carrier is the output block that is connected with camshaft; This ring gear then is the reaction member of this planetary gear set.Speed ratio between central gear and the support is 2: 1.
In this case, ring gear can be set a kind of pattern in two kinds of selectable patterns for, make under two-stroke mode, this ring gear keeps transfixion with respect to support, make whole planetary gear set play a rigid coupling, and camshaft is driven in rotation with crankshaft speed.Under four-stoke mode, this ring gear keeps transfixion with respect to the internal-combustion engine frame, and this planetary gear set plays a gear-box, and camshaft is with half speed driving rotation of crankshaft speed.
Under several selectable patterns, it is well-known making the planetary gear set work principle, and generally is used for driving the automotive automatic transmission system of automobile.The present invention proposes same principle is used for drive cam shaft, so that making the internal combustion function works under two-stroke or four punch die formulas, mode switch is steady and rapid simultaneously, even carries out under high speed in the process of pattern change, and it is minimum that the danger that misfires also can reduce to.Can form a kind of camshaft actuated that forever is in engagement like this and also can avoid camshaft described in the previously known system and bent axle to disconnect provisionally, and then connect sudden change and the error that causes.These previous known systems for example are disclosed in No. 2178152, No. 4907544, U. S. Patent and the U. S. Patent, and these systems all are unacceptable in car transmissions.
The control planetary gear set is worked under selectable pattern, and utilize break, clutch and sensor reposefully and be difficult for changing the technology of pattern with discovering, in the vehicle transmission field, be more advanced, and be easy to it is migrated in the camshaft drive system of the present invention.
Brief description of drawings
Now will be with way of example, the accompanying drawing with reference to a preferred embodiment of the present invention schematic representation further specifies the present invention.Among the figure, drive the air inlet and the exhaust cam shaft of internal-combustion engine individually with two planetary gear set.
DETAILED DESCRIPTION OF THE PREFERRED
Fig. 1 illustrates two planetary gear set.Each group comprises 10, one central gears 12 of a ring gear and three planetary pinions 14, and additional idler gear 15 is installed on the support 16.Speed ratio between this ring gear 10 and the central gear 12 is 1: 2.This ring gear 10 is an input block, toothed belt that it is driven by the bent axle 20 of internal-combustion engine or chain 22 are with half speed driving of crankshaft speed, this central gear 12 is an output block, and it directly is connected with a camshaft of internal-combustion engine, and this support 16 is a reaction member.
For the support 16 and the ring gear 10 of internal-combustion engine frame or rotation are meshed, be provided with corresponding braking or clutch device (not shown), make this support 16 keep transfixions with respect to the ring gear 10 of internal-combustion engine frame or rotation; And when needs, this support is slided and rotation with respect to the ring gear 10 of internal-combustion engine frame or rotation.Using this braking and clutch device to select different speed ratios and directly drive is the common practice in the vehicle transmission field, is conspicuous to being familiar with those of ordinary skill in the art.
In closed loop control system, also be provided with the sensor (not shown), be used for the angular orientation of sensing camshaft and bent axle, thereby can in pattern change process, little by little accurately control the phase place and the speed of camshaft.In order to make the corresponding part of planetary gear set, on the position that requires, intermesh exactly, also be provided with the claw (not shown) of electromagnetism or electric hydaulic control.And when this planetary gear set reached desirable camshaft location, the claw of this electromagnetism or electric hydaulic control was promptly switched on.The braking of this control system manipulation of same use, clutch and jaw means also are conspicuous to those of ordinary skill in the art.
On-stream, when selecting two-stroke mode, at first make in four-stoke mode with respect to the ring gear 10 that rotates and keep support 16 in static each planetary gear set, slide and rotation with respect to the ring gear 10 that rotates, so that little by little adjust the phase place and the speed of each root camshaft towards two-stroke mode, after reaching the position of two-stroke mode, this support 16 keeps transfixion with respect to the internal-combustion engine frame.In this case, each planetary gear set plays a gear-box, and at this moment, each root camshaft is driven rotation with the speed of two times of these ring gear 10 speed; And each turns in the journey at internal-combustion engine, according to the timing of valve under the predetermined two-stroke mode, opens and closes with each internal combustion engine valve of this camshaft once.
When selecting four-stoke mode, at first make in two-stroke mode with respect to the internal-combustion engine frame and keep support 16 in static each planetary gear set, slide and rotation with respect to the internal-combustion engine frame, little by little to adjust the phase place and the speed of each root camshaft towards four-stoke mode; After reaching four-stroke position, make this support 16 with respect to the ring gear 10 that rotates and keep transfixion.In this case, each planetary gear set plays the shaft coupling of a rigidity, at this moment, each root camshaft is driven the speed of rotation, identical with the speed of ring gear 10, and turn in the journey at internal-combustion engine per two, according to the timing of valve under the predetermined four-stoke mode, make valve, open and close once with each internal-combustion engine of this camshaft.
Obviously, in the present invention, the cam that under one or another selected pattern, has same profile on driven camshaft, to be adapted the endurance of opening of valve respectively with the circulation mode of each internal-combustion engine, that is: to open the endurance be that the valve of four-stoke mode is opened half of endurance to the valve of two-stroke mode.
In addition, it can also be seen that, in the present invention, when under two-stroke or four-stoke mode, working, can utilize this planetary gear set to readjust the phase place of camshaft at any time by reaction member is slided with respect to bent axle.
The present invention can make the selectable 2 stroke/4 stroke internal-combustion engine be used in the road vehicle to adapt to different operating conditions; The result can make the General of engine performance, fuel consumption, toxic emission, noise, vibration and driving quality better; Simultaneously can control and improve mode switch, make the driver be difficult to discover.
Claims (6)
1. camshaft drive system that is used for the selectable 2 stroke/4 stroke internal-combustion engine, the exhaust of this internal-combustion engine and intake poppet valve are opened and closed by at least one camshaft; Wherein, this camshaft for good and all is connected with the planetary gear set (10,20,14,15,16) that bent axle (20) by internal-combustion engine drives continuously; And wherein, be provided with the device that this planetary gear set is set at two kinds of a kind of patterns in the selectable stable mode, play a gear-box by the reaction member that makes gear train with respect to static this planetary gear set that makes of internal-combustion engine frame, or the reaction member by making gear train makes this planetary gear set play a rigid coupling with respect to the part stationary that inputs or outputs of gear train, thereby camshaft is according to each alternative mode, its speed or identical to make two-stroke operation with the speed of engine crankshaft, perhaps for half of engine crankshaft speed making four-cycle operation, and camshaft adapts with each circulation mode respectively with respect to the position that the phase place of the angular orientation of piston crank is adjusted to the exchange that makes exhaust and air inlet.
2. camshaft drive system as claimed in claim 1, wherein, any one parts in three parts of the input of this internal-combustion engine and planetary gear set are connected, these parts can be ring gear (10), central gear (12) or planetary gear carrier (16), any one parts in two parts of the output of camshaft and all the other are connected, and mode setting device is last remaining parts, and these parts are exactly the reaction member between the input and output parts.
3. camshaft drive system as claimed in claim 2 wherein, is gone up the idler gear (15) that is provided with in addition with planetary pinion (14) engagement at planetary gear carrier (16), so that make ring gear (10) identical with the sense of rotation of central gear (12).
4. camshaft drive system as claimed in claim 1 or 2, wherein, phase place and speed for adjustment cam axle in pattern change process, be provided with additional device, be used to make the reaction member of this planetary gear set to slide and rotation, perhaps slide and rotation with respect to the input and output parts that rotate with respect to the internal-combustion engine frame.
5. camshaft drive system as claimed in claim 1 or 2, wherein, be provided with corresponding braking and clutch device, be used for the reaction member of planetary gear set is remained under the corresponding selected pattern, and be used to make this reaction member to slide and rotation with respect to the input and output parts of internal-combustion engine frame or rotation.
6. camshaft drive system as claimed in claim 1 or 2, wherein, in closed loop control system, be provided with sensor, the angular orientation that is used for sensing camshaft and bent axle, thereby can be in pattern change process, little by little accurately control the angular orientation of camshaft and bent axle, thereby in pattern change process, can little by little accurately control the phase place and the speed of camshaft.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0017206A GB0017206D0 (en) | 2000-07-14 | 2000-07-14 | Dual cycle internal combustion engine |
| GB0017206.4 | 2000-07-14 | ||
| GB0017354A GB0017354D0 (en) | 2000-07-14 | 2000-07-17 | Dual cycle internal combustion engine |
| GB0017354.2 | 2000-07-17 | ||
| GB0022373.5 | 2000-09-12 | ||
| GB0022373A GB2364745A (en) | 2000-07-14 | 2000-09-12 | Camshaft drive system for selectable two-stroke/ four-stroke i.c. engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1388852A CN1388852A (en) | 2003-01-01 |
| CN1291137C true CN1291137C (en) | 2006-12-20 |
Family
ID=27255805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018026931A Expired - Fee Related CN1291137C (en) | 2000-07-14 | 2001-07-12 | Selectable 2 stroke/4 stroke camshaft drive system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1301692B1 (en) |
| CN (1) | CN1291137C (en) |
| AU (1) | AU2001270788A1 (en) |
| DE (1) | DE60117553T2 (en) |
| WO (1) | WO2002006639A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670697A (en) * | 2012-09-07 | 2014-03-26 | 福特环球技术公司 | Internal combustion engine which may be selectively operated by the two-stroke method or the four-stroke method and method for operating such an internal combustion engine |
| CN107076008A (en) * | 2014-09-29 | 2017-08-18 | 沃尔沃卡车集团 | Two cycle opposed-piston formula engines and method with compression releasing braking device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3009337B1 (en) * | 2013-08-01 | 2015-08-21 | Peugeot Citroen Automobiles Sa | MECHANICAL TRANSMISSION DEVICE WITH SWITCHABLE EPICYCLOIDAL TRAIN |
| DE102014112464A1 (en) * | 2014-08-29 | 2016-03-03 | Thyssenkrupp Presta Teccenter Ag | Adjustment unit for a camshaft of an internal combustion engine |
| CN104863724A (en) * | 2015-05-25 | 2015-08-26 | 曲严忠 | Extra-high compression ratio supercharging direct-injection gasoline engine and running state switching method thereof |
| WO2020046824A1 (en) | 2018-08-27 | 2020-03-05 | Tti (Macao Commercial Offshore) Limited | Floor cleaner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3842267A1 (en) * | 1988-12-15 | 1990-06-21 | Gerd Mager | Variable valve overlap for four-stroke engines by means of planetary gearing with adjustment |
| JPH04234508A (en) * | 1990-12-29 | 1992-08-24 | Isuzu Ceramics Kenkyusho:Kk | 2-4 cycle switching clutch |
| EP0918142B1 (en) * | 1997-11-21 | 2003-10-15 | Mazda Motor Corporation | Apparatus for controlling rotational phase |
-
2001
- 2001-07-12 DE DE60117553T patent/DE60117553T2/en not_active Expired - Fee Related
- 2001-07-12 CN CNB018026931A patent/CN1291137C/en not_active Expired - Fee Related
- 2001-07-12 WO PCT/GB2001/003116 patent/WO2002006639A1/en active IP Right Grant
- 2001-07-12 EP EP01949668A patent/EP1301692B1/en not_active Expired - Lifetime
- 2001-07-12 AU AU2001270788A patent/AU2001270788A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670697A (en) * | 2012-09-07 | 2014-03-26 | 福特环球技术公司 | Internal combustion engine which may be selectively operated by the two-stroke method or the four-stroke method and method for operating such an internal combustion engine |
| CN103670697B (en) * | 2012-09-07 | 2017-11-24 | 福特环球技术公司 | Explosive motor and its operating method |
| CN107076008A (en) * | 2014-09-29 | 2017-08-18 | 沃尔沃卡车集团 | Two cycle opposed-piston formula engines and method with compression releasing braking device |
| US10683782B2 (en) | 2014-09-29 | 2020-06-16 | Volvo Truck Corporation | Two stroke, opposed piston engine with compression release brake arrangement and method |
| CN107076008B (en) * | 2014-09-29 | 2020-12-01 | 沃尔沃卡车集团 | Two-stroke opposed-piston engine with compression-release brake and method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1301692B1 (en) | 2006-03-01 |
| WO2002006639A1 (en) | 2002-01-24 |
| EP1301692A1 (en) | 2003-04-16 |
| DE60117553D1 (en) | 2006-04-27 |
| AU2001270788A1 (en) | 2002-01-30 |
| DE60117553T2 (en) | 2006-08-10 |
| CN1388852A (en) | 2003-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4716863A (en) | Internal combustion engine valve actuation system | |
| CN101278113B (en) | Control device and method for internal combustion engine | |
| CN101450660B (en) | Engine arrangement and control method | |
| Hatano et al. | Development of a new multi-mode variable valve timing engine | |
| US5517951A (en) | Two stroke/four stroke engine | |
| CN101238278B (en) | Internal combustion engine | |
| CN101054912A (en) | Cylinder deactivation apparatus | |
| WO2014143211A1 (en) | Internal combustion engine with multiple operating modes | |
| US6499452B2 (en) | Selectable 2-stroke/4-stroke camshaft drive system | |
| CN101612935A (en) | The transmission schedule of multi-stroke engine | |
| GB2418229A (en) | Fuel pump drive system eg for DOHC i.c. engines | |
| CN103328775A (en) | Four stroke internal combustion engine having variable valve timing and method | |
| JP3145591B2 (en) | Vehicle compressed air supply system | |
| CN101612937A (en) | The transmission schedule of multi-stroke engine | |
| CN1291137C (en) | Selectable 2 stroke/4 stroke camshaft drive system | |
| US20060102124A1 (en) | Piston engine with selectable firing order | |
| CN114320590A (en) | Multi-connecting-rod crankshaft mechanism with combined eccentric shaft and camshaft drive system for an internal combustion engine | |
| JP2000154731A (en) | Power transmission device for four-cycle engine | |
| US20060000436A1 (en) | System and method for controlling engine valve lift and valve opening percentage | |
| WO2007120398A1 (en) | Method and apparatus for controlling engine valve timing | |
| CN101440746A (en) | Implementing method and apparatus of stepless speed regulating eccentric swinging type internal combustion engine | |
| US9702275B2 (en) | Timing drive of an internal combustion engine | |
| CN2809229Y (en) | Variable valve timing distribution device for internal combustion engine | |
| JPH07238840A (en) | Variable cycle engine | |
| GB2139283A (en) | A multi-cylinder IC engine operable with at least one ineffective cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |