CN103628943A - Intensive multifunctional continuously-variable valve driving system for four-cylinder internal combustion engine - Google Patents
Intensive multifunctional continuously-variable valve driving system for four-cylinder internal combustion engine Download PDFInfo
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- CN103628943A CN103628943A CN201310448281.2A CN201310448281A CN103628943A CN 103628943 A CN103628943 A CN 103628943A CN 201310448281 A CN201310448281 A CN 201310448281A CN 103628943 A CN103628943 A CN 103628943A
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Abstract
The invention discloses an intensive multifunctional continuously-variable valve driving system for a four-cylinder internal combustion engine, and belongs to the field of internal combustion engine variable valve driving systems. The intensive multifunctional continuously-variable valve driving system mainly comprises oil feeders, a cycle selector, a mode converter, two-position two-way valves, an air valve driver and the like. According to the designed cycle selector, a variable valve event required by the driving mode and the braking mode of the internal combustion engine can be achieved simply through the two oil feeders and the two two-position two-way valves, and a strong function is achieved with extremely low cost. The air valve closing process is not limited by the operating stages of the oil feeders, an air valve early closing event required by the idling and medium-low load of the internal combustion engine is met, and the oil consumption and emissions of the internal combustion engine in actual application are fully reduced. The intensive multifunctional continuously-variable valve driving system can be applied to a naturally suction type internal combustion engine and a turbocharging type internal combustion engine only by exchanging the communicated objects of two oil ports in the mode converter, and is good in type adaptability and wide in application range. All the components of the system are connected through oil pipes, and the system can be arranged on an actual machine type conveniently.
Description
Technical field
The present invention relates to the multi-functional continuous variable valve drive system of a kind of intensive style for 4 cylinder IC engines, belong to and can realize internal-combustion engine variable valve actuation system.
Background technique
Along with the development of World Economics, the problem of energy and environment has become the major issue that affects sustainable economic development.Internal-combustion engine, as the dynamic power machine being most widely used in the world at present, is consuming every year a large amount of fuel oils, and is discharging a large amount of harmful gases and particulate, and combustion engine energy-saving emission reduction work is very urgent.In addition, sharply increase along with internal-combustion engine recoverable amount, annual people's life and the property loss causing because of traffic accident increases year by year, and vehicle safety is more and more subject to people's attention, and increasing country classifies auxiliary braking system one of as indispensable annex of vehicle.Yet at present auxiliary braking system mostly exist in running brake member easily overheated, retardation efficiency reduce too fast, stopping power controllable degree is low, the easy sideslip of vehicle, braking system take the limited problems such as vehicle space during braking.Changeable air valve technology is being improved engine performance and in the potentiality aspect internal-combustion engine auxiliary braking, is being subject to the extensive concern of internal-combustion engine research institution and enterprise because of it.Yet the current automobile-used Variabale valve actuation system of having changed exists contradiction at aspects such as valve adjustments flexibility ratio and system architecture complexity, costs mostly, and these systems are generally used for internal combustion engine drive field, seldom for auxiliary braking field.
Consider, electrolyte type Variabale valve actuation system is the system of at present tool potentiality.Tradition electrolyte type system adopts rail fuel system altogether, and along with the increase of internal combustion (IC) engine cylinder number, single cylinder valve number and rotating speed, this system exists following two problems to have to be solved: 1) have that common rail pipe is bulky, the problem of difficulty in arrangement; 2) because the quantity of the high-speed large-flow solenoid valve using in system is too much, and the solenoid valve cost being determined by current solenoid valve material and processing technology is higher, and therefore, the holistic cost of this system is higher.These problems have caused the practical comparatively difficulty of traditional electrolyte type system.
For the problem of traditional electrolyte type system space difficult arrangement, there is a kind of cam oil feeding type electricity liquid valve actuation system, this system adopts the mode of cam-plunger fuel feeding, because of it, cancels common rail pipe, and system space is arranged easily.Yet this system still exists following two problems to have to be solved: 1) the same with traditional electrolyte type system, this system still exists the problem that quantity is too much, system cost is higher of the required solenoid valve of system; 2) this system valve actuation adjustable extent is subject to the restriction of cam-plunger oil feeder fuel supply rate curve, cannot realize exhaust valve secondary opening event, cannot realize the desired changeable air valve event of braking mode etc. that the internal-combustion engine of 720 degree/circulations is become to the gas compressor of 360 degree/circulations, these have limited the functions expanding of this system.
For the existing problem of cam oil feeding type electricity liquid valve actuation system, there is in recent years a kind of double mode whole-variable valve actuating system, this system is by use drive-braking cycle device and mode converter, reduced solenoid valve quantity, and realized and meet internal combustion engine drive and the desired changeable air valve event of braking mode simultaneously.Yet, this system still exists following two problems to have to be solved: two five-way valves that 1) use due to system need to switch the in the situation that of the different pressure reduction of each hydraulic fluid port, and the pressure reduction situation of change of each hydraulic fluid port is very complicated, and, along with the increase of rotating speed, require the response time of two five-way valves shorter, circulating rate is larger, these requirements have caused two five-way valve structure complexity, and processing cost is high; 2) under internal combustion engine drive pattern, this system cannot realize the changeable air valve event of closing in advance valve in the fuel feeding stage, this by limit this system idling for internal combustion engine and in the performance improvement degree of low operating mode, and these operating modes conventional operating mode of city vehicle exactly, oil consumption and emission behaviour when under these operating modes, the runnability of internal-combustion engine has determined vehicle actual motion to a great extent.
Summary of the invention
The object of the invention is to: 1) by design cycle selector, reach and only need 2 2/2-way valves to realize internal combustion engine drive and the desired changeable air valve event of braking mode, thereby when realizing internal-combustion engine variable Valves Technology and auxiliary braking technology and unite two into one, significantly simplied system structure, reduces system cost; 2) feature of utilizing the oil outlet of the 2/2-way valve use to be connected with fuel tank, has greatly reduced the complexity that the pressure reduction of hydraulic fluid port when 2/2-way valve switches changes, and has simplified the structure of 2/2-way valve, has reduced processing cost; 3) compared with double mode whole-variable valve actuating system, native system can be realized under internal combustion engine drive pattern, at the fuel feeding of oil feeder, in the stage, close in advance the changeable air valve event of valve, reach further idling for internal combustion engine and the middle low-load performance of improving, oil consumption while improving vehicle actual motion and the object of emission behaviour, thereby the application potential of extension system; The final market acceptance level that improves native system.
The technical solution adopted in the present invention is: the multi-functional continuous variable valve drive system of a kind of intensive style for 4 cylinder IC engines, and it mainly comprises the 1st oil feeder, the 2nd oil feeder, valve actuation device, the 1st 2/2-way valve, the 2nd 2/2-way valve, mode converter, fuel tank, oil transfer pump, oil transfer pump safety valve, the 1st one-way valve, the 2nd one-way valve and oil pipe, it also comprises rotary selector, described the 1st oil feeder and the 2nd oil feeder are cam-plunger type oil feeder of phase phase difference 180 degree camshaft degrees, its period of rotation is 360 Shaft angles of writing music, oil transfer pump filler opening is connected with fuel tank, oil transfer pump oil outlet is connected with fuel tank by oil transfer pump safety valve, oil transfer pump oil outlet is connected with the 1st oil feeder by the 1st one-way valve, oil transfer pump oil outlet is connected with the 2nd oil feeder by the 2nd one-way valve, the 1st oil feeder, the 1st 2/2-way valve filler opening is connected with rotary selector the 1st oil-feed port three, the 1st 2/2-way valve oil outlet is connected with fuel tank 1, the 2nd oil feeder, the 2nd 2/2-way valve filler opening is connected with rotary selector the 2nd oil-feed port three, the 2nd 2/2-way valve oil outlet is connected with fuel tank, rotary selector drain tap is connected with fuel tank, rotary selector the 1st drives mouth to drive oil-feed port to be connected with mode converter the 1st, rotary selector the 4th drives mouth to drive oil-feed port to be connected with mode converter the 4th, rotary selector the 2nd drives mouth to drive oil-feed port to be connected with mode converter the 2nd, rotary selector the 3rd drives mouth to drive oil-feed port to be connected with mode converter the 3rd, mode converter the 1st drives mouth, mode converter the 4th drives mouth, mode converter the 2nd drives mouth, mode converter the 3rd drive mouth respectively with 1 cylinder, 4 cylinders, the valve actuation device of 2 cylinders and 3 cylinders is connected, for take, as arrange-take, arrange as entering the spontaneous intake type internal combustion engine of braking mode, rotary selector the 1st brake port is connected with mode converter the 1st braking oil-feed port, rotary selector the 2nd brake port is connected with mode converter the 2nd braking oil-feed port, or rotary selector the 1st brake port and rotary selector the 2nd brake port are not set, mode converter the 1st braking oil-feed port is connected with the 1st oil feeder, mode converter the 2nd braking oil-feed port is connected with the 2nd oil feeder, for take turbocharging type or the spontaneous intake type internal combustion engine of arranging as row's braking mode as entering-take, rotary selector the 1st brake port is connected with mode converter the 2nd braking oil-feed port, rotary selector the 2nd brake port is connected with mode converter the 1st braking oil-feed port, or rotary selector the 1st brake port and rotary selector the 2nd brake port are not set, mode converter the 1st braking oil-feed port is connected with the 2nd oil feeder, mode converter the 2nd braking oil-feed port is connected with the 1st oil feeder, the internal-combustion engine of the integral multiple that is 4 for cylinder number, according to ignition order 180 the write music Shaft angle groupings of being separated by, one group every group a set of above-mentioned Variabale valve actuation system of employing of every 4 cylinder.
Described rotary selector adopts three layers of nesting type structure, be followed successively by from outside to inside the rotary selector shell that has hydraulic fluid port, the rotary selector axle sleeve of axially grooved and perforate and radially the rotary selector axle core of fluting, wherein, rotary selector axle core is driven by I. C. engine crankshaft by gear or chain wheel driving mechanism, every 720 Shaft angles of writing music rotate 1 week, rotary selector axle sleeve is fixedly nested in rotary selector enclosure, will be according to internal-combustion engine firing order, continuous rotation along with rotary selector axle core, rotary selector the 1st drives mouth and rotary selector the 4th to drive mouth to be all connected with rotary selector the 1st oil-feed port or rotary selector drain tap respectively at intervals, rotary selector the 2nd drives mouth and rotary selector the 3rd to drive mouth to be all connected with the reverse oil-feed port of rotary selector or rotary selector drain tap respectively at intervals, rotary selector the 1st brake port is connected with rotary selector the 1st oil-feed port all the time, rotary selector the 2nd brake port is connected with the reverse oil-feed port of rotary selector all the time, or rotary selector the 1st brake port and rotary selector the 2nd brake port are not set.
The invention has the beneficial effects as follows: (a) only to adopt 2 oil feeders be when all valve actuating mechanisms that enter (row) valve of internal-combustion engine provide hydraulic oil to the multi-functional continuous variable valve drive system of this intensive style for 4 cylinder IC engines realizing, realize and only to need 2 2/2-way valves to carry out all valve actuating mechanisms that enter (row) valve of controlling combustion engine, compared with double mode whole-variable valve actuating system, the feature that the oil outlet of the 2/2-way valve that native system utilization is used is connected with fuel tank, greatly reduced the complexity of the pressure reduction variation of hydraulic fluid port when 2/2-way valve switches, simplified the structure of the required solenoid valve of system, reduced the cost of system, improved the acceptance level in market, (b) compared with double mode whole-variable valve actuating system, native system can be realized under internal combustion engine drive pattern, at the fuel feeding of oil feeder, in the stage, close in advance the changeable air valve event of valve, reach further idling for internal combustion engine and the middle low-load performance of improving, oil consumption while improving vehicle actual motion and the object of emission behaviour, thereby the application potential of extension system, (c) rotary selector and the mode converter according to internal combustion (IC) engine cylinder number and firing order design matches, can meet the desired changeable air valve event of internal combustion engine drive and braking mode simultaneously, by regulating 2/2-way valve can change driving and the braking effect of internal-combustion engine, thereby realize, internal-combustion engine variable Valves Technology and auxiliary braking technology are united two into one, reduce car accessories, greatly reduced cost, (d) rotary selector adopts three layers of nested structure of axle core-axle sleeve-shell, and axle core-shaft room is for being rotatably assorted, between axle sleeve-shell, be static cooperation, hydraulic fluid port position can need to regulate according to as installed, good manufacturability, maintenance and change simple and conveniently, cost is low, (e) between various parts, adopt oil pipe to connect, this arranges very favourable to system in application vehicle, (f) for different modes of braking, only need to change 2 connecting objects that hydraulic fluid port is corresponding on mode converter, system is good to the type adaptability of practical application, applied range.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the intensive multi-functional continuous variable valve drive system schematic diagram of 4 cylinder IC engines of single valve.
Fig. 2 is the intensive multi-functional continuous variable valve drive system rotary selector plan views of 4 cylinder IC engines.
Fig. 3 is the intensive multi-functional continuous variable valve drive system rotary selector left views of 4 cylinder IC engines.
Fig. 4 is the intensive multi-functional continuous variable valve drive system rotary selector plan views of 4 cylinder IC engines.
Fig. 5 is the intensive multi-functional continuous variable valve drive system rotary selector A-A cross-sectional views of 4 cylinder IC engines.
Fig. 6 is the intensive multi-functional continuous variable valve drive system rotary selector B-B cross-sectional views of 4 cylinder IC engines.
Fig. 7 is the intensive multi-functional continuous variable valve drive system rotary selector C-C cross-sectional views of 4 cylinder IC engines.
Fig. 8 is the intensive multi-functional continuous variable valve drive system rotary selector D-D cross-sectional views of 4 cylinder IC engines.
Fig. 9 is the intensive multi-functional continuous variable valve drive system rotary selector E-E cross-sectional views of 4 cylinder IC engines.
Figure 10 is the intensive multi-functional continuous variable valve drive system rotary selector F-F cross-sectional views of 4 cylinder IC engines.
Figure 11 is the intensive multi-functional continuous variable valve drive system rotary selector G-G cross-sectional views of 4 cylinder IC engines.
Figure 12 is the intensive multi-functional continuous variable valve drive system rotary selector H-H cross-sectional views of 4 cylinder IC engines.
Figure 13 is the intensive multi-functional continuous variable valve drive system rotary selector I-I cross-sectional views of 4 cylinder IC engines.
Figure 14 is the intensive multi-functional continuous variable valve drive system rotary selector J-J cross-sectional views of 4 cylinder IC engines.
Figure 15 is the intensive multi-functional continuous variable valve drive system mode converter plan views of 4 cylinder IC engines.
Figure 16 is the intensive multi-functional continuous variable valve drive system mode converter left views of 4 cylinder IC engines.
Figure 17 is the intensive multi-functional continuous variable valve drive system mode converter plan views of 4 cylinder IC engines.
Figure 18 is the intensive multi-functional continuous variable valve drive system overall schematic of 4 cylinder IC engines.
In figure: 1, fuel tank, 2, the 2nd 2/2-way valve, 2a, the 2nd 2/2-way valve oil outlet, 2b, the 2nd 2/2-way valve filler opening, 3, the 1st 2/2-way valve, 3a, the 1st 2/2-way valve oil outlet, 3b, the 1st 2/2-way valve filler opening, 4, oil transfer pump, 5, oil transfer pump safety valve, 6, the 1st oil feeder, 7, the 2nd oil feeder, 8, the 1st one-way valve, 9, the 2nd one-way valve, 10, rotary selector, 10a, rotary selector the 2nd oil-feed port, 10b, rotary selector the 1st oil-feed port, 10c, rotary selector drain tap, 10d, rotary selector the 1st drives mouth, 10e, rotary selector the 1st brake port, 10f, rotary selector the 4th drives mouth, 10g, rotary selector the 2nd drives mouth, 10h, rotary selector the 2nd brake port, 10i, rotary selector the 3rd drives mouth, 10j, rotary selector shell, 10k, rotary selector axle sleeve, 10s, rotary selector axle core, 11, mode converter, 11a, mode converter the 1st drives oil-feed port, 11b, mode converter the 1st braking oil-feed port, 11c, mode converter the 4th drives oil-feed port, 11d, mode converter the 2nd drives oil-feed port, 11e, mode converter the 2nd braking oil-feed port, 11f, mode converter the 3rd drives oil-feed port, 11g, mode converter the 1st drives mouth, 11h, mode converter the 4th drives mouth, 11i, mode converter the 2nd drives mouth, 11j, mode converter the 3rd drives mouth, 11k, mode converter shell, 11s, mode converter axle sleeve, 11m, mode converter axle core, 12, valve actuation device.
Embodiment
The present invention is illustrated as example as arrange-take to arrange as entering the Variabale valve actuation system of 1-2-4-3 formula naturally aspirated 4 cylinder IC engines of braking mode to be applied to adopt take, and the 2/2-way valve of take is illustrated as normally close valve as example.
Fig. 1 shows the intensive multi-functional continuous variable valve drive system schematic diagram of 4 cylinder IC engines of single valve.Due to the design feature of native system, 12 work of valve actuation device are determined jointly by the characteristics of motion of the 1st oil feeder 6 and rotary selector 10 and the working state of mode converter 11 and the 1st 2/2-way valve 3.According to the working state of mode converter 11, valve actuation device 12 working procedure can be divided into drive pattern and braking mode, its working procedure is:
(1) drive pattern
When internal-combustion engine is during in drive pattern as power source, drive pattern transducer 11, Holdover mode transducer the 1st drives oil-feed port 11a and mode converter the 1st to drive mouthful 11g to be communicated with, mode converter the 1st braking oil-feed port 11b and mode converter the 1st drive mouthful 11g to disconnect, now, valve actuation device 12 can only be worked in the scope of the characteristics of motion restriction by the 1st oil feeder 6 and rotary selector 10, and the working state by the 1st 2/2-way valve 3 within the scope of this regulates concrete valve Operational Limits, and its working procedure is:
(1) valve can the driven stage
In this stage, rotary selector 10 drives mouthful 10d to be communicated with rotary selector the 1st oil-feed port 10b and rotary selector the 1st, and drives mouthful 10d and rotary selector drain tap 10c to disconnect rotary selector the 1st.Valve actuation oil circuit under drive pattern, rotary selector the 1st oil-feed port 10b, rotary selector the 1st drive a mouthful 10d, mode converter the 1st to drive oil-feed port 11a, mode converter the 1st to drive a mouthful 11g to be communicated with completely.Simultaneously this stage is the operation period of a fuel feeding+oil suction starting from fuel feeding starting point of the 1st oil feeder 6.Within this stage, can realize following valve running:
(a) valve opening process: when the 1st oil feeder 6 enters fuel feeding during the stage, when valve actuation unlatching timing signal does not reach, the 1st 2/2-way valve 3 is energized, the 1st 2/2-way valve filler opening 3b is connected with the 1st 2/2-way valve oil outlet 3a, and the hydraulic oil in the 1st oil feeder 6 is got back in fuel tank 1 by the 1st 2/2-way valve 3; Under the effect of valve actuation device 12 springs, valve keeps closed condition.When valve actuation is opened the arrival of timing signal, the 1st 2/2-way valve 3 is not energized, the 1st 2/2-way valve filler opening 3b and the 1st 2/2-way valve oil outlet 3a disconnect, hydraulic oil in the 1st oil feeder 6 enters in valve actuation device 12 by the valve actuation oil circuit under drive pattern, overcome the active force of valve actuation device 12 springs, drive valve opening.
(b) valve oil suction is closed and the process of taking a seat: when the 1st oil feeder 6 enters oil suction during the stage, descending along with feeding plunger, under the effect of gentle gate driver 12 springs of the 1st oil feeder 6 oil suction, hydraulic oil is got back to the 1st oil feeder 6 from valve actuation device 12 by the valve actuation oil circuit drive pattern, realizes the oil suction of valve and closes.When valve goes upward to the position of the throttle device that obtains designing in advance, up along with valve, throttle increases fast, thereby has limited the Extraction rate of valve actuation device 12, has realized the object of air valve drop buffering.Follow-up air valve drop process no longer repeats.
(c) valve draining is closed and the process of taking a seat: no matter be in fuel feeding stage or oil suction stage at the 1st oil feeder 6, when valve actuation is closed the arrival of timing signal, the 1st 2/2-way valve 3 is energized, and the 1st 2/2-way valve filler opening 3b is connected with the 1st 2/2-way valve oil outlet 3a.When the 1st oil feeder 6 is in fuel feeding during the stage, under the effect of valve actuation device 12 springs and the 1st oil feeder 6 fuel feeding, hydraulic oil in valve actuation device 12 is got back in fuel tank 1 by the 1st 2/2-way valve 3 with together with hydraulic oil in the 1st oil feeder 6 after by the valve actuation oil circuit under drive pattern, has realized the draining closing process of valve.When the 1st oil feeder 6 is in oil suction during the stage, under the effect of valve actuation device 12 springs and the 1st oil feeder 6 oil suctions, hydraulic oil in valve actuation device 12 is by the valve actuation oil circuit under drive pattern, a part enters the 1st oil feeder 6, another part is got back in fuel tank 1 by the 1st 2/2-way valve 3, has realized the draining closing process of valve.
(2) valve-closing keeps the stage
In this stage, rotary selector 10 drives mouthful 10d to disconnect rotary selector the 1st oil-feed port 10b and rotary selector the 1st, and drives a mouthful 10d to be communicated with rotary selector the 1st rotary selector drain tap 10c.Leakage passage under drive pattern, mode converter the 1st drives a mouthful 11g, mode converter the 1st to drive oil-feed port 11a, rotary selector the 1st to drive mouthful 10d and rotary selector drain tap 10c to be communicated with completely.Valve actuation device 12 is connected with fuel tank 1 by the leakage passage under drive pattern, and that can realize valve closes and close maintenance, can replace lash adjuster.
(2) braking mode
When internal-combustion engine is when conduct consumes the braking mode in source, 11 motions of drive pattern transducer, drive mouthful 11g to be communicated with mode converter the 1st braking oil-feed port 11b and mode converter the 1st, mode converter the 1st drives oil-feed port 11a and mode converter the 1st to drive mouthful 11g to disconnect.Because rotary selector the 1st oil-feed port 10b is connected with rotary selector the 1st brake port 10e all the time, it is the valve actuation oil circuit under braking mode, be that rotary selector the 1st oil-feed port 10b, rotary selector the 1st brake port 10e, mode converter the 1st braking oil-feed port 11b, mode converter a 1st driving mouthful 11g are communicated with all the time completely, therefore, the operating range of valve actuation device 12 is limited by the characteristics of motion of the 1st oil feeder 6 only, and by the working state of the 1st 2/2-way valve 3, regulates concrete valve Operational Limits within the scope of this.Except driving oil circuit difference, the working procedure that its working procedure and valve under drive pattern can the driven stages is the same, no longer repetition herein.
At a rotary selector in the operation period, drive pattern has 1 valve can the driven stage, and braking mode there are 2 valves can the driven stage, therefore, can realize the desired changeable air valve event of braking mode of 360 degree/circulations.
Fig. 2-4 are respectively the intensive multi-functional continuous variable valve drive system rotary selector plan view of 4 cylinder IC engines, left view and plan view, and Fig. 5-14 are cross-sectional views of intensive multi-functional each oil duct of continuous variable valve drive system rotary selector plan view of 4 cylinder IC engines.According to the internal-combustion engine under driving and braking mode, valve is opened and closed the requirement of event, can draw the 1st oil feeder the 6, the 2nd oil feeder 7, the valve actuation device of each cylinder, the connected relation of fuel tank 1 relative crank angle, in Table 1.It is worth noting that table 1, for not considering the rough connected relation of concrete internal-combustion engine practical operation situation, in actual applications, should be revised according to data in the actual requirement his-and-hers watches of internal-combustion engine.
The connected relation of table 1 the 1st oil feeder the 6, the 2nd oil feeder 7, valve actuation device, fuel tank 1 relative crank angle
According to the connected relation of each parts in table 1, rotary selector 10 adopts three layers of nesting type structure, is followed successively by from outside to inside and has the rotary selector shell 10j of hydraulic fluid port, axially grooved and the rotary selector axle sleeve 10k of perforate and the rotary selector axle core 10s radially slotting.Wherein, rotary selector axle core 10s is driven by I. C. engine crankshaft by gear or chain wheel driving mechanism, and every 720 Shaft angles of writing music rotate 1 week; It is inner that rotary selector axle sleeve 10k is fixedly nested in rotary selector shell 10j; Will be according to internal-combustion engine firing order, along with the continuous rotation of rotary selector axle core 10s, the groove and the hole that utilize groove that rotary selector axle core 10s radially opens and rotary selector axle sleeve 10k axially to open are communicated with each hydraulic fluid port on rotary selector shell 10j or disconnect according to the requirements of table 1.The connected relation of the relative crank angle of each hydraulic fluid port on rotary selector 10 is as shown in table 2, and the connected relation of rotary selector corner is as shown in table 3 relatively.
The connected relation of the relative crank angle of each hydraulic fluid port on table 2 rotary selector 10
The relative rotary selector corner of connected relation of each hydraulic fluid port on table 3 rotary selector 10
Because rotary selector the 1st brake port 10e is connected all the time with rotary selector the 1st oil-feed port 10b, rotary selector the 2nd brake port 10h is connected all the time with rotary selector the 2nd oil-feed port 10a, therefore, rotary selector the 1st brake port 10e and rotary selector the 2nd brake port 10h also can be set.For take, as arrange-take, arrange as entering the spontaneous intake type internal combustion engine of braking mode, rotary selector the 1st brake port 10e is connected with mode converter the 1st braking oil-feed port 11b, rotary selector the 2nd brake port 10h is connected with mode converter the 2nd braking oil-feed port 11e, or rotary selector the 1st brake port 10e and rotary selector the 2nd brake port 10h are not set, mode converter the 1st braking oil-feed port 11b is connected with the 1st oil feeder 6, and mode converter the 2nd braking oil-feed port 11e is connected with the 2nd oil feeder 7.For take turbocharging type or the spontaneous intake type internal combustion engine of arranging as row's braking mode as entering-take, rotary selector the 1st brake port 10e is connected with mode converter the 2nd braking oil-feed port 11e, rotary selector the 2nd brake port 10h is connected with mode converter the 1st braking oil-feed port 11b, or rotary selector the 1st brake port 10e and rotary selector the 2nd brake port 10h are not set, mode converter the 1st braking oil-feed port 11b is connected with the 2nd oil feeder 7, and mode converter the 2nd braking oil-feed port 11e is connected with the 1st oil feeder 6.Wherein, employing be take and is arranged spontaneous intake type internal combustion engine as entering braking mode in the situation that needs are braked as arrange-take, valve actuation system is opened intake valve near top dead center, and the pressurized gas in cylinder is discharged along intake duct, and pressurized gas does work to piston when reducing descent of piston; Near lower dead center, open exhaust valve, air is sucked to cylinder from air outlet flue, the negative work of piston compression gas when increasing piston stroking upward.Employing take as entering-take to arrange as row's turbocharging type of braking mode or spontaneous intake type internal combustion engine are in the situation that needs are braked, valve actuation system is opened exhaust valve near top dead center, pressurized gas in cylinder is discharged along air outlet flue, and pressurized gas does work to piston when reducing descent of piston; Near lower dead center, open intake valve, air is sucked to cylinder from intake duct, the negative work of piston compression gas when increasing piston stroking upward.
Figure 15-17 are respectively the intensive multi-functional continuous variable valve drive system mode converter plan view of 4 cylinder IC engines, left view and plan view.According to the requirement of table 1, can obtain under different mode, the connected relation of each hydraulic fluid port on mode converter 11, as shown in table 4.
The connected relation of the relative crank angle of each hydraulic fluid port on table 4 mode converter 11
| Connection scope | Mode converter the 1st drives a mouthful 11g | Mode converter the 4th drives a mouthful 11h | Mode converter the 2nd drives a mouthful 11i | Mode converter the 3rd drives a mouthful 11j |
| Mode converter the 1st drives oil- | Drive pattern is communicated with | × | × | × |
| Mode converter the 4th drives oil-feed port 11c | × | Drive pattern is communicated with | × | × |
| Mode converter the 2nd drives oil-feed port 11d | × | × | Drive pattern is communicated with | × |
| Mode converter the 3rd drives oil-feed port 11f | × | × | × | Drive pattern is communicated with |
| Mode converter the 1st braking oil- | Braking mode is communicated with | Braking mode is communicated with | × | × |
| Mode converter the 2nd braking oil-feed port 11e | × | × | Braking mode is communicated with | Braking mode is communicated with |
And then consider the requirement of the aspects such as manufacturability, installation, mode converter 11 adopts three layers of nesting type structure, be followed successively by from inside to outside radially the mode converter axle core 11m of fluting, the mode converter axle sleeve 11s of axially grooved and perforate and with the mode converter shell 11k of hydraulic fluid port.When internal-combustion engine is in drive pattern lower time, drive pattern transducer 11, the state of mode converter 11 in Figure 15-17, now, mode converter the 1st drives a mouthful 11g, mode converter the 4th drives a mouthful 11h, mode converter the 2nd drives a mouthful 11i, mode converter the 3rd drives mouthful 11j to drive oil-feed port 11a with mode converter the 1st respectively, mode converter the 4th drives oil-feed port 11c, mode converter the 2nd drives oil-feed port 11d, mode converter the 3rd drives oil-feed port 11f to be connected, mode converter the 1st braking oil-feed port 11b and mode converter the 2nd braking oil-feed port 11e are all blocked, meet the requirement of internal combustion engine drive pattern, when internal-combustion engine is in braking mode lower time, drive pattern transducer 11 makes mode converter axle core 11m turn over several angle, this example is for turning over clockwise 90 degree, now, mode converter the 1st drives mouthful 11g and mode converter the 4th to drive mouthful 11h to be all connected with mode converter the 1st braking oil-feed port 11b, mode converter the 2nd drives mouthful 11i and mode converter the 3rd to drive mouthful 11j to be all connected with mode converter the 2nd braking oil-feed port 11e, mode converter the 1st drives oil-feed port 11a, mode converter the 4th drives oil-feed port 11c, mode converter the 2nd drives oil-feed port 11d, mode converter the 3rd drives oil-feed port 11f all blocked, meet the requirement of internal-combustion engine braking mode.
Should be noted that in this example that rotary selector 10 and mode converter 11 all adopt three layers of nested structure to obtain manufacturability, reduce the quantity of oil pipe, improve level of integrated system.And the concrete structures such as the structure of the two and hydraulic fluid port position all require to adjust the layout of adaptive system in application vehicle according to as installed.
Figure 18 shows the intensive multi-functional continuous variable valve drive system overall schematic of 4 cylinder IC engines, and it mainly comprises the 1st oil feeder the 6, the 2nd oil feeder 7, valve actuation device 12, the 1st 2/2-way valve the 3, the 2nd 2/2-way valve 2, rotary selector 10, fuel tank 1, oil transfer pump 4, oil transfer pump safety valve 5, the 1st one-way valve the 8, the 2nd one-way valve 9 and oil pipe, it also comprises mode converter 11, described the 1st oil feeder 6 and the 2nd oil feeder 7 are cam-plunger type oil feeder of phase phase difference 180 degree camshaft degrees, its period of rotation is 360 Shaft angles of writing music, oil transfer pump 4 filler openings are connected with fuel tank 1, oil transfer pump 4 oil outlets are connected with fuel tank 1 by oil transfer pump safety valve 5, oil transfer pump 4 oil outlets are connected with the 1st oil feeder 6 by the 1st one-way valve 8, oil transfer pump 4 oil outlets are connected with the 2nd oil feeder 7 by the 2nd one-way valve 9, the 1st oil feeder 6, the 1st 2/2-way valve filler opening 3b is connected with rotary selector the 1st oil-feed port 10b three, the 1st 2/2-way valve oil outlet 3a is connected with fuel tank 1, the 2nd oil feeder 7, the 2nd 2/2-way valve filler opening 2b is connected with rotary selector the 2nd oil-feed port 10a three, the 2nd 2/2-way valve oil outlet 2a is connected with fuel tank 1, rotary selector drain tap 10c is connected with fuel tank 1, rotary selector the 1st drives mouthful 10d to drive oil-feed port 11a to be connected with mode converter the 1st, rotary selector the 4th drives mouthful 10f to drive oil-feed port 11c to be connected with mode converter the 4th, rotary selector the 2nd drives mouthful 10g to drive oil-feed port 11d to be connected with mode converter the 2nd, rotary selector the 3rd drives mouthful 10i to drive oil-feed port 11f to be connected with mode converter the 3rd, mode converter the 1st drives a mouthful 11g, mode converter the 4th drives a mouthful 11h, mode converter the 2nd drives a mouthful 11i, mode converter the 3rd drive mouthful 11j respectively with 1 cylinder, 4 cylinders, the valve actuation device of 2 cylinders and 3 cylinders is connected, for take, as arrange-take, arrange as entering the spontaneous intake type internal combustion engine of braking mode, rotary selector the 1st brake port 10e is connected with mode converter the 1st braking oil-feed port 11b, rotary selector the 2nd brake port 10h is connected with mode converter the 2nd braking oil-feed port 11e, or rotary selector the 1st brake port 10e and rotary selector the 2nd brake port 10h are not set, mode converter the 1st braking oil-feed port 11b is directly connected with the 1st oil feeder 6, mode converter the 2nd braking oil-feed port 11e is connected with the 2nd oil feeder 7, for take turbocharging type or the spontaneous intake type internal combustion engine of arranging as row's braking mode as entering-take, rotary selector the 1st brake port 10e is connected with mode converter the 2nd braking oil-feed port 11e, rotary selector the 2nd brake port 10h is connected with mode converter the 1st braking oil-feed port 11b, or rotary selector the 1st brake port 10e and rotary selector the 2nd brake port 10h are not set, mode converter the 1st braking oil-feed port 11b is directly connected with the 2nd oil feeder 7, mode converter the 2nd braking oil-feed port 11e is connected with the 1st oil feeder 6.The internal-combustion engine of the integral multiple that is 4 for cylinder number (X doubly), according to the ignition order 180 Shaft angle groupings of writing music of being separated by, one group, every 4 cylinder, is divided into X group, and every group adopts a set of above-mentioned Variabale valve actuation system.
To adopt to take, as arrange-take, arrange 1-2-4-3 formula naturally aspirated 4 cylinder IC engines as entering braking mode as example, under drive pattern, it is the valve actuation device fuel feeding of 1 cylinder and 4 cylinders at intervals that rotary selector 10 makes the 1st oil feeder 6, and the 1st 2/2-way valve 3 is controlled the concrete keying parameter of the valve actuation device of 1 cylinder and 4 cylinders at intervals; The 2nd oil feeder 7 is the valve actuation device fuel feeding of 2 cylinders and 3 cylinders at intervals, and the 2nd 2/2-way valve 2 is controlled the concrete keying parameter of the valve actuation device of 2 cylinders and 3 cylinders at intervals.At 720 Shaft angles of writing music, a rotary selector, in 10 operation period, opens and closes valve according to the order of 1 cylinder-3, cylinder-4, cylinder-2 cylinder, meets the requirement of drive pattern.Under braking mode, mode converter 11 is divided into 2 groups by valve actuation device: 1 cylinder and 4 cylinders, 2 cylinders and 3 cylinders.The 1st oil feeder 6 is the valve actuation device fuel feeding of 1 cylinder and 4 cylinders simultaneously, and the 1st 2/2-way valve 3 is controlled the concrete keying parameter of the valve actuation device of 1 cylinder and 4 cylinders simultaneously; The 2nd oil feeder 7 is the valve actuation device fuel feeding of 2 cylinders and 3 cylinders simultaneously, and the 2nd 2/2-way valve 2 is controlled the concrete keying parameter of the valve actuation device of 2 cylinders and 3 cylinders simultaneously.At 720 Shaft angles of writing music, a rotary selector, in 10 operation period, opens and closes valve according to the order of 1 cylinder+3, cylinder-2, cylinder+4, cylinder-1, cylinder+3, cylinder-2, cylinder+4 cylinder, meets the requirement of braking mode.
Claims (2)
1. for the multi-functional continuous variable valve drive system of intensive style of 4 cylinder IC engines, it mainly comprises the 1st oil feeder (6), the 2nd oil feeder (7), valve actuation device (12), the 1st 2/2-way valve (3), the 2nd 2/2-way valve (2), mode converter (11), fuel tank (1), oil transfer pump (4), oil transfer pump safety valve (5), the 1st one-way valve (8), the 2nd one-way valve (9) and oil pipe, it is characterized in that: further comprising rotary selector (10), described the 1st oil feeder (6) and the 2nd oil feeder (7) are cam-plunger type oil feeder of phase phase difference 180 degree camshaft degrees, its period of rotation is 360 Shaft angles of writing music, oil transfer pump (4) filler opening is connected with fuel tank (1), oil transfer pump (4) oil outlet is connected with fuel tank (1) by oil transfer pump safety valve (5), oil transfer pump (4) oil outlet is connected with the 1st oil feeder (6) by the 1st one-way valve (8), oil transfer pump (4) oil outlet is connected with the 2nd oil feeder (7) by the 2nd one-way valve (9), the 1st oil feeder (6), the 1st 2/2-way valve filler opening (3b) is connected with rotary selector the 1st oil-feed port (10b) three, the 1st 2/2-way valve oil outlet (3a) is connected with fuel tank (1), the 2nd oil feeder (7), the 2nd 2/2-way valve filler opening (2b) is connected with rotary selector the 2nd oil-feed port (10a) three, the 2nd 2/2-way valve oil outlet (2a) is connected with fuel tank (1), rotary selector drain tap (10c) is connected with fuel tank (1), rotary selector the 1st drives mouthful (10d) to drive oil-feed port (11a) to be connected with mode converter the 1st, rotary selector the 4th drives mouthful (10f) to drive oil-feed port (11c) to be connected with mode converter the 4th, rotary selector the 2nd drives mouthful (10g) to drive oil-feed port (11d) to be connected with mode converter the 2nd, rotary selector the 3rd drives mouthful (10i) to drive oil-feed port (11f) to be connected with mode converter the 3rd, mode converter the 1st drives mouthful (11g), mode converter the 4th drives mouthful (11h), mode converter the 2nd drives mouthful (11i), mode converter the 3rd drive mouthful (11j) respectively with 1 cylinder, 4 cylinders, the valve actuation device of 2 cylinders and 3 cylinders is connected, for take, as arrange-take, arrange as entering the spontaneous intake type internal combustion engine of braking mode, rotary selector the 1st brake port (10e) is connected with mode converter the 1st braking oil-feed port (11b), rotary selector the 2nd brake port (10h) is connected with mode converter the 2nd braking oil-feed port (11e), or rotary selector the 1st brake port (10e) and rotary selector the 2nd brake port (10h) are not set, mode converter the 1st braking oil-feed port (11b) is connected with the 1st oil feeder (6), mode converter the 2nd braking oil-feed port (11e) is connected with the 2nd oil feeder (7), for take turbocharging type or the spontaneous intake type internal combustion engine of arranging as row's braking mode as entering-take, rotary selector the 1st brake port (10e) is connected with mode converter the 2nd braking oil-feed port (11e), rotary selector the 2nd brake port (10h) is connected with mode converter the 1st braking oil-feed port (11b), or rotary selector the 1st brake port (10e) and rotary selector the 2nd brake port (10h) are not set, mode converter the 1st braking oil-feed port (11b) is connected with the 2nd oil feeder (7), mode converter the 2nd braking oil-feed port (11e) is connected with the 1st oil feeder (6), the internal-combustion engine of the integral multiple that is 4 for cylinder number, according to ignition order 180 the write music Shaft angle groupings of being separated by, one group, every 4 cylinder, every group adopts a set of above-mentioned Variabale valve actuation system.
2. the multi-functional continuous variable valve drive system of a kind of intensive style for 4 cylinder IC engines according to claim 1, it is characterized in that: described rotary selector (10) adopts three layers of nesting type structure, be followed successively by from outside to inside the rotary selector shell (10j) that has hydraulic fluid port, the rotary selector axle sleeve (10k) of axially grooved and perforate and radially the rotary selector axle core (10s) of fluting, wherein, rotary selector axle core (10s) is driven by I. C. engine crankshaft by gear or chain wheel driving mechanism, every 720 Shaft angles of writing music rotate 1 week, rotary selector axle sleeve (10k) is fixedly nested in rotary selector shell (10j) inside, will be according to internal-combustion engine firing order, continuous rotation along with rotary selector axle core (10s), rotary selector the 1st drives mouthful (10d) to drive mouthful (10f) to be all connected with rotary selector forward oil-feed port (10b) or rotary selector drain tap (10c) respectively at intervals with rotary selector the 4th, rotary selector the 2nd drives mouthful (10g) to drive mouthful (10i) to be all connected with the reverse oil-feed port of rotary selector (10a) or rotary selector drain tap (10c) respectively at intervals with rotary selector the 3rd, rotary selector the 1st brake port (10e) is connected with rotary selector forward oil-feed port (10b) all the time, rotary selector the 2nd brake port (10h) is connected with the reverse oil-feed port of rotary selector (10a) all the time, or rotary selector the 1st brake port (10e) and rotary selector the 2nd brake port (10h) are not set.
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Cited By (5)
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| CN105386810A (en) * | 2015-12-31 | 2016-03-09 | 潍柴动力股份有限公司 | Motor brake system |
| CN106762012A (en) * | 2016-12-13 | 2017-05-31 | 大连理工大学 | A kind of compact locking-type multi-mode Variabale valve actuation system |
| CN106948895A (en) * | 2016-12-13 | 2017-07-14 | 大连理工大学 | A kind of locking-type multi-mode Variabale valve actuation system |
| CN107035459A (en) * | 2016-12-13 | 2017-08-11 | 大连理工大学 | A kind of locking-type multi-mode four-bar Variabale valve actuation system |
| CN109751100A (en) * | 2019-02-13 | 2019-05-14 | 大连理工大学 | A kind of full hydraulic variable continuous variable valve driving mechanism |
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| US5839453A (en) * | 1995-08-08 | 1998-11-24 | Diesel Engine Retarders, Inc. | Internal combustion engines with combined cam and electro-hydraulic engine valve control |
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| CN106762012A (en) * | 2016-12-13 | 2017-05-31 | 大连理工大学 | A kind of compact locking-type multi-mode Variabale valve actuation system |
| CN106948895A (en) * | 2016-12-13 | 2017-07-14 | 大连理工大学 | A kind of locking-type multi-mode Variabale valve actuation system |
| CN107035459A (en) * | 2016-12-13 | 2017-08-11 | 大连理工大学 | A kind of locking-type multi-mode four-bar Variabale valve actuation system |
| CN109751100A (en) * | 2019-02-13 | 2019-05-14 | 大连理工大学 | A kind of full hydraulic variable continuous variable valve driving mechanism |
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| CN103628943B (en) | 2016-04-13 |
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