CN103216323A - Stroke changing engine stroke switching mechanism - Google Patents
Stroke changing engine stroke switching mechanism Download PDFInfo
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- CN103216323A CN103216323A CN2013101412470A CN201310141247A CN103216323A CN 103216323 A CN103216323 A CN 103216323A CN 2013101412470 A CN2013101412470 A CN 2013101412470A CN 201310141247 A CN201310141247 A CN 201310141247A CN 103216323 A CN103216323 A CN 103216323A
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- cam
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- oilhole
- camshaft
- peripheral surface
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- 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
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Abstract
The invention discloses a stroke changing engine stroke switching mechanism. Two axial sides of a camshaft are respectively provided with a bearing. A cam body is arranged on the camshaft. The cam body is composed of four cam sheet bodies. A hemispheric locating groove I is formed in a four-stroke operating mode air inlet cam along the direction from the inner circumferential face to the outer circumferential face; a hemispheric locating groove II is formed in a two-stroke operating mode air outlet cam along the direction from the inner circumferential face to the outer circumferential face; a groove hole, namely a guiding groove, with a circular cross section is formed in the camshaft outer circumferential face corresponding to the locating groove I; and a locating steel ball is arranged inside the locating groove and connected with one end of a spring inside the guiding groove and the other end of the spring is connected with the groove bottom of the guiding groove. Compared with the prior art, the stroke changing engine stroke switching mechanism has the advantages that change on a prior machine is small, a valve timing mechanism transmission portion is not changed, adaptability is strong, switching is rapid and stable and weight is light.
Description
Technical field the present invention relates to a kind of switching mechanism, relates in particular to a kind of change two-stroke engine stroke switching mechanism.
The internal-combustion engine that background technique is traditional is divided into four stroke engine and two stroke engine, it can only be worked under specific mode of operation, and the motor of different mode all has its Pros and Cons separately, the gas exchange process of four stroke engine carries out in two different piston strokes, scavenging loss is few and ventilation end of a period coefficient of residual gas is less, to compare two stroke engine obviously favourable so in fuel consume and discharging, but power character is poor than two stroke engine under high load working condition, in order to satisfy the high-power demand of four stroke engine when hypervelocity or the operating mode such as climbing, be necessary the mode of operation of this moment is switched to two stroke mode of operation, thereby realized under the situation that does not increase engine quality and discharge capacity, having improved the reserve capacity of motor.
U. S. Patent Two-stroke and Four-stroke Switching Mechanism, patent No. US7036465B2, it discloses a kind of two-stroke and four-stroke handover mechanism, the main form that adopts two rocking arms, on pitman arm shaft, be integrated with four-stroke mode of operation rocking arm and two stroke operation pattern rocking arm, connected element is arranged in the middle of both, in the middle of the three, have and switch the center hole that pin moves for two, switching pin works under the effect of oil pressure, when needs four-stroke mode of operation, the four-stroke rocking arm switches pin and enters work, and four-stroke rocking arm and intermediate member are connected as a single entity, the two-stroke rocking arm separates with intermediate member simultaneously, enters the four-stroke mode of operation this moment; When needs two stroke operation pattern, the two-stroke rocking arm switches pin and enters work, and two-stroke rocking arm and intermediate member are connected as a single entity, and the four-stroke rocking arm separates with intermediate member simultaneously, enters the two stroke operation pattern this moment.This mechanism can realize the mutual switching between the different working modes, but the change to former machine is bigger, camshaft and rocking arm all will improve, and the control to switching time requires relatively stricter, the fluctuation among a small circle of control program and oil pressure, oil temperature all might cause the error in judgement of switching time, causes switching having some setbacks.
Summary of the invention the object of the present invention is to provide a kind of not only little to former machine change, does not change the distribution device drive part, and adaptability is strong, and switches fast, steadily, and quality is little, processes simply change two-stroke engine stroke switching mechanism with low cost.
The present invention mainly is that the execution by ECU (Electrical Control Unit) control electromagnetic driver realizes cam body endwisely slipping on the cam center axle, thereby reaches the switching of cam under the different working modes.
The present invention mainly includes camshaft, bearing, cam body, fastening screw trip bolt, flat key, locking ball, spring and boss, the axial both sides of described camshaft are equipped with bearing, camshaft can cooperate with the engine cylinder head upper bearing bracket by two bearings, is implemented in rotating freely in the cylinder head; Establish cam body on the described camshaft, this cam body is made up of 4 cam lamellar bodies, they are followed successively by two stroke operation pattern intake cam vertically, four-stroke mode of operation intake cam, two stroke operation pattern exhaust cam and four-stroke mode of operation exhaust cam, wherein four-stroke mode of operation intake cam and four-stroke mode of operation exhaust cam are unimodal cam, two stroke operation pattern intake cam and two stroke operation pattern exhaust cam are double peak cam, these 4 cam lamellar bodies link to each other with camshaft by flat key, and flat key passes through 3 screw in the keyway of camshaft; Above-mentioned cam shaft is equipped with one with the cam shaft line parallel and insert the fastening screw trip bolt of 4 cam lamellar body inside successively to both sides, these two fastening screw trip bolts oppositely are provided with, for guaranteeing that 4 cam lamellar bodies fit tightly, in the cam lamellar body slotted eye of the above-mentioned two fastening screw trip bolt ends of correspondence, establish internal thread, promptly wherein fastening screw trip bolt that inserts by two stroke operation pattern intake cam terminal with four-stroke mode of operation exhaust cam by being threaded, an other clamping bolt end that is inserted by four-stroke mode of operation exhaust cam and two stroke operation pattern intake cam are by being threaded; Described two stroke operation pattern intake cam is provided with the boss I that is connected as a single entity with it towards the side of camshaft spindle nose, the cross section of this boss I is circular-arc, and its side towards the camshaft spindle nose is processed as helicoid; Described four-stroke mode of operation exhaust cam is provided with the boss II that is connected as a single entity with it towards the side of cam shaft tail, the cross section of this boss II is circular-arc, and its side towards the cam shaft tail is processed as helicoid; Inner peripheral surface by described four-stroke mode of operation intake cam is established hemispheric slotted eye to the outer peripheral surface direction, i.e. the locating slot I; Inner peripheral surface by described two stroke operation pattern exhaust cam is established hemispherical slotted eye to the outer peripheral surface direction, i.e. the locating slot II; Described locating slot I is identical with the diameter of locating slot II; Establishing the cross section by the camshaft outer peripheral surface of described locating slot I correspondence to camshaft inside is circular slotted eye, it is guiding groove, the center line of this guiding groove is perpendicular to the axis of camshaft, and the diameter of guiding groove is more than or equal to the diameter of described locating slot I, the inner setting position steel ball of described locating slot I, the diameter of this locking ball is less than the diameter of locating slot I, and locking ball links to each other with spring one end of described guiding groove inside, and the other end of this spring links to each other with the bottom land of guiding groove.
Be equipped with the oilhole that passes through for lubricant oil on above-mentioned each cam lamellar body, promptly establishing the cross section by the outer peripheral surface of described two stroke operation pattern intake cam to the inner peripheral surface direction is circular through hole, i.e. oilhole I; Establishing the cross section by the outer peripheral surface of described four-stroke mode of operation intake cam to the inner peripheral surface direction is circular through hole, i.e. oilhole II, and the inserting end of this oilhole II links to each other with the bottom land of described locating slot I; Establishing the cross section by the outer peripheral surface of described two stroke operation pattern exhaust cam to the inner peripheral surface direction is circular through hole, i.e. oilhole III, and the inserting end of this oilhole III links to each other with the bottom land of described locating slot II; Establishing the cross section by the outer peripheral surface of described four-stroke mode of operation exhaust cam to the inner peripheral surface direction is circular through hole, i.e. oilhole IV.
The both sides of described guiding groove are established an end respectively and are linked to each other with the camshaft outer peripheral surface, the other end strip through-hole that links to each other with the camshaft central shaft hole, be oilhole V and oilhole VI, this oilhole V is connected with described oilhole I, and the centreline spacing of oilhole V and oilhole VI equals the centreline spacing of described oilhole I and oilhole III, the centreline spacing of this oilhole V and oilhole VI equals the centreline spacing of described oilhole II and oilhole IV, guarantee that then the oilhole V communicates with the oilhole I under the four-stroke mode of operation, the oilhole VI communicates with the oilhole III, the oilhole V communicates with the oilhole II under the two stroke operation pattern, and the oilhole VI communicates with the oilhole IV.
Cam body of the present invention links to each other with camshaft by the Placement of flat key, its camshaft of following that not only can realize cam body rotates, can realize that also cam body slides vertically, cam body is carried out to be implemented on the camshaft by ECU (Electrical Control Unit) control electromagnetic driver and is endwisely slipped, reach the switching of four-stroke mode of operation and two stroke operation pattern, the cam lamellar body that electromagnetic driver mainly acts on the two ends of cam body is two stroke operation pattern intake cam and four-stroke mode of operation exhaust cam, further, electromagnetic driver directly acts on the boss on the cams at two ends lamellar body, make whole slip of cam body in the rotation, realize the switching of two mode of operations, when the mode of operation after the arrival switching, locating slot by mode of operation cam inboard, locking ball and spring are realized the location, finish to guarantee that everything goes well with your work; The oilhole that processing is passed through for lubricant oil on cam body and the central shaft, and the cam body oilhole is corresponding with the hemisphere locating slot, can play the double action lubricated and location.
The present invention compared with prior art has following advantage:
1, need not change the distribution device drive part, only need the valve cam structure is improved, installing the Electromagnetic Drive control section in gas distributing chamber additional can realize, simple in structure, changes little to former machine;
2, distribution device drive part flexible configuration, adaptability is good, and the switching cam can drive rocking arm and also can directly drive valve tappet;
What 3, number of spare parts and quality increased lacks, and easily realizes lightweight, compares with former machine, this scheme is only many miniature parts such as electromagnetic driver, and quality increases little, can increase substantially the specific mass power that becomes the stroke machine;
4, do not change the original design value of single stroke valve timing;
5, cam body adopts the combining form of lamellar body, can carry out the replacement of cam lamellar body, adopt the method for integrating theory with practice that port timing is revised, shorten experimental period thereby made things convenient for, reduced experimental cost, and made the processing of the cam body that is difficult to moulding become simple;
6, the switching boss of cam body adopts helicoid, and the switching of stroke is become fast and steadily, and the scope of switching boss guaranteed that again electromagnetic driver has the time enough surplus to carry out, and has reduced the requirement to electromagnetic driver.
Description of drawings Fig. 1 looks generalized section for master of the present invention.
Fig. 2 is the A-A diagrammatic sketch of Fig. 1.
Fig. 3 looks schematic representation for the left side of two stroke operation pattern intake cam of the present invention.
Fig. 4 is the schematic top plan view of two stroke operation pattern intake cam of the present invention.
Fig. 5 looks schematic representation for the right side of four-stroke mode of operation exhaust cam of the present invention.
Fig. 6 is the elevational schematic view of four-stroke mode of operation exhaust cam of the present invention.
Fig. 7 is a working state schematic representation of the present invention.
Embodiment as depicted in figs. 1 and 2, the axial both sides of camshaft 1 are equipped with bearing 2, establish cam body 3 on the described camshaft, this cam body is made up of 4 cam lamellar bodies, they are followed successively by two stroke operation pattern intake cam 4 vertically, four-stroke mode of operation intake cam 5, two stroke operation pattern exhaust cam 6 and four-stroke mode of operation exhaust cam 7, wherein four-stroke mode of operation intake cam and four-stroke mode of operation exhaust cam are unimodal cam, two stroke operation pattern intake cam and two stroke operation pattern exhaust cam are double peak cam, these 4 cam lamellar bodies link to each other with camshaft by flat key 8, and flat key is fixed in the keyway of camshaft by 3 screws 9; Above-mentioned cam shaft is equipped with one with the cam shaft line parallel and insert the fastening screw trip bolt 10 of 4 cam lamellar body inside successively to both sides, these two fastening screw trip bolts oppositely are provided with, for guaranteeing that 4 cam lamellar bodies fit tightly, in the cam lamellar body slotted eye of the above-mentioned two fastening screw trip bolt ends of correspondence, establish internal thread, wherein fastening screw trip bolt that inserts by two stroke operation pattern intake cam terminal with four-stroke mode of operation exhaust cam by being threaded, an other clamping bolt end that is inserted by four-stroke mode of operation exhaust cam and two stroke operation pattern intake cam are by being threaded; Described two stroke operation pattern intake cam is provided with the boss 11 that is connected as a single entity with it towards the side of camshaft spindle nose; Described four-stroke mode of operation exhaust cam is provided with the boss 12 that is connected as a single entity with it towards the side of cam shaft tail; Inner peripheral surface by described four-stroke mode of operation intake cam is established hemispheric slotted eye to the outer peripheral surface direction, and promptly locating slot 13; Inner peripheral surface by described two stroke operation pattern exhaust cam is established hemispherical slotted eye to the outer peripheral surface direction, and promptly locating slot 14; Described locating slot 13 is identical with the diameter of locating slot 14; Establishing the cross section by the camshaft outer peripheral surface of described locating slot 13 correspondences to camshaft inside is circular slotted eye, it is guiding groove 15, the center line of this guiding groove is perpendicular to the axis of camshaft, and the diameter of guiding groove is greater than the diameter of described locating slot 13, the inner setting position steel ball 16 of described locating slot 13, the diameter of this locking ball is less than the diameter of locating slot 13, and locking ball links to each other with spring 17 1 ends of described guiding groove inside, and the other end of this spring links to each other with the bottom land of guiding groove; Be equipped with the oilhole that passes through for lubricant oil on above-mentioned each cam lamellar body, promptly establishing the cross section by the outer peripheral surface of described two stroke operation pattern intake cam to the inner peripheral surface direction is circular through hole, and promptly oilhole 18; Establishing the cross section by the outer peripheral surface of described four-stroke mode of operation intake cam to the inner peripheral surface direction is circular through hole, and promptly oilhole 19, and the inserting end of this oilhole 19 links to each other with the bottom land of described locating slot 13; Establishing the cross section by the outer peripheral surface of described two stroke operation pattern exhaust cam to the inner peripheral surface direction is circular through hole, and promptly oilhole 20, and the inserting end of this oilhole 20 links to each other with the bottom land of described locating slot 14; Establishing the cross section by the outer peripheral surface of described four-stroke mode of operation exhaust cam to the inner peripheral surface direction is circular through hole, and promptly oilhole 21; The both sides of described guiding groove are established an end respectively and are linked to each other with the camshaft outer peripheral surface, the strip through-hole that the other end links to each other with the camshaft central shaft hole, i.e. oilhole 23 and oilhole 22; This oilhole 23 is connected with described oilhole 18, and the centreline spacing of oilhole 23 and oilhole 22 equals the centreline spacing of described oilhole 18 and oilhole 20, and the centreline spacing of this oilhole 23 and oilhole 22 equals the centreline spacing of described oilhole 19 and oilhole 21.
Fig. 1 and Fig. 2 are that motor is under the four-stroke mode of operation, at this moment, locking ball 16 enters in the locating slot 13 under the effect of spring 17, realize spacing, the axial motion of having avoided cam body under the four-stroke mode of operation, to work and take place, and oilhole 23 communicates with oilhole 18, realizes lubricated and the location double action; When mode of operation need switch to two stroke operation pattern following time, cam body 3 integral body are slided left, locking ball 16 is got back in the guiding groove 15 under the extruding force of left movement at cam body 3, after entering the two stroke operation pattern, locking ball 16 enters under the effect of spring 17 in the locating slot 14, realizes spacing, avoiding cam body 3 to work under the two stroke operation pattern once more endwisely slips, and oilhole 22 communicates with oilhole 19, and oilhole 23 communicates with oilhole 21, realizes lubricated and the location double action.
As shown in Figure 3 and Figure 4, two stroke operation pattern intake cam 4 is provided with the boss 11 that is connected as a single entity with it towards the side of camshaft spindle nose, and the cross section of boss 11 is circular-arc, and its side towards the camshaft spindle nose is processed as helicoid.
As shown in Figure 5 and Figure 6, described four-stroke mode of operation exhaust cam 7 is provided with the boss 12 that is connected as a single entity with it towards the side of cam shaft tail, and the cross section of boss 12 is circular-arc, and its side towards the cam shaft tail is processed as helicoid.
As shown in Figure 7, the changer lever 25 of electromagnetic driver 24 is corresponding with the boss 12 of four-stroke mode of operation exhaust cam 7, the changer lever 27 of electromagnetic driver 26 is corresponding with the boss 11 of two stroke operation pattern intake cam 4, electromagnetic driver 24 and electromagnetic driver 26 all are installed on the engine cylinder head, and by ECU (Electrical Control Unit) 28 controls.During work, by the four-stroke mode of operation to the two stroke operation mode switching, electromagnetic driver 24 is carried out under the control of ECU (Electrical Control Unit) 28, changer lever 25 begins action, along with the axial rotation of cam body 3, under the effect of 25 pairs of boss 12 power of changer lever, cam body 3 is vertically to left movement, enter the two stroke operation pattern, the two stroke operation mode cam enters working state; When ECU (Electrical Control Unit) is sent by the two stroke operation mode switching to the control signal of four-stroke mode of operation, electromagnetic driver 26 is carried out under the control of ECU (Electrical Control Unit) 28, changer lever 27 begins action, axial rotation along with cam body 3, under the effect of 27 pairs of boss 11 power of changer lever, cam body 3 moves right vertically, enters the four-stroke mode of operation, and four-stroke mode of operation cam enters working state.
Claims (3)
1. one kind becomes two-stroke engine stroke switching mechanism, comprise camshaft, bearing, cam body, fastening screw trip bolt, flat key, locking ball, spring and boss, it is characterized in that: the axial both sides of described camshaft are equipped with bearing, establish cam body on the camshaft, this cam body is made up of 4 cam lamellar bodies, they are followed successively by two stroke operation pattern intake cam vertically, four-stroke mode of operation intake cam, two stroke operation pattern exhaust cam and four-stroke mode of operation exhaust cam, wherein four-stroke mode of operation intake cam and four-stroke mode of operation exhaust cam are unimodal cam, two stroke operation pattern intake cam and two stroke operation pattern exhaust cam are double peak cam, these 4 cam lamellar bodies link to each other with camshaft by flat key, and flat key passes through 3 screw in the keyway of camshaft; Above-mentioned cam shaft is equipped with one with the cam shaft line parallel and insert the fastening screw trip bolt of 4 cam lamellar body inside successively to both sides, in the cam lamellar body slotted eye of the above-mentioned two fastening screw trip bolt ends of correspondence, establish internal thread, promptly wherein fastening screw trip bolt that inserts by two stroke operation pattern intake cam terminal with four-stroke mode of operation exhaust cam by being threaded, an other clamping bolt end that is inserted by four-stroke mode of operation exhaust cam and two stroke operation pattern intake cam are by being threaded; Described two stroke operation pattern intake cam is provided with the boss I that is connected as a single entity with it towards the side of camshaft spindle nose, the cross section of this boss I is circular-arc, and its side towards the camshaft spindle nose is processed as helicoid; Described four-stroke mode of operation exhaust cam is provided with the boss II that is connected as a single entity with it towards the side of cam shaft tail, the cross section of this boss II is circular-arc, and its side towards the cam shaft tail is processed as helicoid; Inner peripheral surface by described four-stroke mode of operation intake cam is established hemispheric slotted eye to the outer peripheral surface direction, i.e. the locating slot I; Inner peripheral surface by described two stroke operation pattern exhaust cam is established hemispherical slotted eye to the outer peripheral surface direction, i.e. the locating slot II; Described locating slot I is identical with the diameter of locating slot II; Establishing the cross section by the camshaft outer peripheral surface of described locating slot I correspondence to camshaft inside is circular slotted eye, it is guiding groove, the center line of this guiding groove is perpendicular to the axis of camshaft, and the diameter of guiding groove is more than or equal to the diameter of described locating slot I, the inner setting position steel ball of described locating slot I, the diameter of this locking ball is less than the diameter of locating slot I, and locking ball links to each other with spring one end of described guiding groove inside, and the other end of this spring links to each other with the bottom land of guiding groove.
2. change two-stroke engine stroke switching mechanism according to claim 1 is characterized in that: establishing the cross section by the outer peripheral surface of described two stroke operation pattern intake cam to the inner peripheral surface direction is circular through hole, i.e. oilhole I; Establishing the cross section by the outer peripheral surface of described four-stroke mode of operation intake cam to the inner peripheral surface direction is circular through hole, i.e. oilhole II, and the inserting end of this oilhole II links to each other with the bottom land of described locating slot I; Establishing the cross section by the outer peripheral surface of described two stroke operation pattern exhaust cam to the inner peripheral surface direction is circular through hole, i.e. oilhole III, and the inserting end of this oilhole III links to each other with the bottom land of described locating slot II; Establishing the cross section by the outer peripheral surface of described four-stroke mode of operation exhaust cam to the inner peripheral surface direction is circular through hole, i.e. oilhole IV.
3. change two-stroke engine stroke switching mechanism according to claim 2, it is characterized in that: the both sides of described guiding groove are established an end respectively and are linked to each other with the camshaft outer peripheral surface, the strip through-hole that the other end links to each other with the camshaft central shaft hole, be oilhole V and oilhole VI, this oilhole V is connected with described oilhole I, and the centreline spacing of oilhole V and oilhole VI equals the centreline spacing of described oilhole I and oilhole III, and the centreline spacing of this oilhole V and oilhole VI equals the centreline spacing of described oilhole II and oilhole IV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141247.0A CN103216323B (en) | 2013-04-19 | 2013-04-19 | Stroke changing engine stroke switching mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141247.0A CN103216323B (en) | 2013-04-19 | 2013-04-19 | Stroke changing engine stroke switching mechanism |
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| CN103216323A true CN103216323A (en) | 2013-07-24 |
| CN103216323B CN103216323B (en) | 2014-04-30 |
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| CN201310141247.0A Expired - Fee Related CN103216323B (en) | 2013-04-19 | 2013-04-19 | Stroke changing engine stroke switching mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018905A (en) * | 2014-05-30 | 2014-09-03 | 燕山大学 | Variable stroke engine hydraulic type air distribution switching mechanism |
| CN104141519A (en) * | 2014-07-18 | 2014-11-12 | 燕山大学 | Distribution switching mechanism for engine with changeable stroke |
| CN104329133A (en) * | 2014-09-24 | 2015-02-04 | 宁波捷成轴业有限公司 | Self lubricating type variable-stroke cam shaft |
| CN104948251A (en) * | 2014-03-31 | 2015-09-30 | 王皓 | Engine valve hydraulic driving and motion allocating device |
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| EP0475727A2 (en) * | 1990-09-10 | 1992-03-18 | Isuzu Ceramics Research Institute Co., Ltd. | Engine selectively operable in two- and four-cycle modes |
| US6257176B1 (en) * | 1998-12-08 | 2001-07-10 | Honda Giken Kogyo Kabushiki Kaisha | Variable cycle internal combustion engine and controller thereof |
| CN101443536A (en) * | 2006-05-01 | 2009-05-27 | 里卡多公司 | Modulated combined lubrication and control pressure system for two-stroke/four-stroke switching |
| CN101619663A (en) * | 2009-07-30 | 2010-01-06 | 燕山大学 | Distribution cam mechanism of two-stroke and four-stroke switching internal-combustion engine |
-
2013
- 2013-04-19 CN CN201310141247.0A patent/CN103216323B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0475727A2 (en) * | 1990-09-10 | 1992-03-18 | Isuzu Ceramics Research Institute Co., Ltd. | Engine selectively operable in two- and four-cycle modes |
| US6257176B1 (en) * | 1998-12-08 | 2001-07-10 | Honda Giken Kogyo Kabushiki Kaisha | Variable cycle internal combustion engine and controller thereof |
| CN101443536A (en) * | 2006-05-01 | 2009-05-27 | 里卡多公司 | Modulated combined lubrication and control pressure system for two-stroke/four-stroke switching |
| CN101619663A (en) * | 2009-07-30 | 2010-01-06 | 燕山大学 | Distribution cam mechanism of two-stroke and four-stroke switching internal-combustion engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948251A (en) * | 2014-03-31 | 2015-09-30 | 王皓 | Engine valve hydraulic driving and motion allocating device |
| CN104018905A (en) * | 2014-05-30 | 2014-09-03 | 燕山大学 | Variable stroke engine hydraulic type air distribution switching mechanism |
| CN104018905B (en) * | 2014-05-30 | 2016-05-04 | 燕山大学 | Become two-stroke engine fluid pressure type distribution switching mechanism |
| CN104141519A (en) * | 2014-07-18 | 2014-11-12 | 燕山大学 | Distribution switching mechanism for engine with changeable stroke |
| CN104141519B (en) * | 2014-07-18 | 2016-05-18 | 燕山大学 | A kind of variable stroke engine distribution switching mechanism |
| CN104329133A (en) * | 2014-09-24 | 2015-02-04 | 宁波捷成轴业有限公司 | Self lubricating type variable-stroke cam shaft |
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| CN103216323B (en) | 2014-04-30 |
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