WO2015006886A1 - 一种内燃机全可变液压气门系统的控油装置 - Google Patents
一种内燃机全可变液压气门系统的控油装置 Download PDFInfo
- Publication number
- WO2015006886A1 WO2015006886A1 PCT/CN2013/000948 CN2013000948W WO2015006886A1 WO 2015006886 A1 WO2015006886 A1 WO 2015006886A1 CN 2013000948 W CN2013000948 W CN 2013000948W WO 2015006886 A1 WO2015006886 A1 WO 2015006886A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotary valve
- rotary
- internal combustion
- combustion engine
- valve sleeve
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 62
- 238000004146 energy storage Methods 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000003111 delayed effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 101100495270 Caenorhabditis elegans cdc-26 gene Proteins 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/076—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with sealing faces shaped as surfaces of solids of revolution
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
- F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
- F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
-
- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34426—Oil control 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
- 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
- F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34446—Fluid accumulators for the feeding circuit
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
Definitions
- the present invention relates to a valve train and a fuel supply system for an internal combustion engine, and more particularly to an oil control device for a fully variable hydraulic valve system of an internal combustion engine.
- the internal combustion engine uses a hydraulically actuated valve system to achieve continuous variable valve lift, valve opening duration and valve timing.
- This valve system is called the Full Fully Variable Valve System (HFVVS). ), it is of great significance to the energy saving and emission reduction of internal combustion engines.
- representative fully variable hydraulic valve systems include Schaeffler's Uniair system, Ford's electro-hydraulic fully variable valve system, and Lotus's EHFVVT system.
- These hydraulically variable valve systems all use high frequency solenoid valves as oil control switches to control the inflow and outflow of oil.
- the high frequency solenoid valve has the disadvantages of low frequency response speed, low reliability and high cost.
- a continuously variable internal combustion engine gas distribution system includes a valve assembly, a hydraulic cylinder assembly, a hydraulic cylinder outlet control device, a hydraulic cylinder inlet control device, and a camshaft drive assembly.
- the hydraulic low-pressure system has a large pressure fluctuation, which causes the work to be unstable.
- the hydraulic system has oil leakage, which causes air to enter; the hydraulic cylinder outlet control
- the device also has limitations due to structural defects that are not suitable for multi-cylinder internal combustion engines, and there is a problem that the transmission is not stable. These problems have made the system difficult to promote.
- the object of the present invention is to overcome the shortcomings of the prior art and provide an oil control device for a fully variable hydraulic valve system that is stable in operation, reliable in operation, and highly versatile, and is suitable for single-cylinder and multi-cylinder internal combustion engines.
- the invention is matched with the full variable hydraulic valve system of the internal combustion engine, and the technical solution thereof comprises: a casing and a rotary valve, a hydraulic accumulator and a transmission mechanism installed in the casing;
- the rotary valve is composed of a rotary valve core and a rotary valve
- the sleeve is provided with a tooth on one end of the rotary valve sleeve, the rotary valve core is installed in the rotary wide sleeve, and the rotary valve sleeve is installed in the inner cavity of the housing;
- the toothed cavity is located on the housing corresponding to the tooth portion on the rotary valve sleeve a rack is mounted in the rack cavity and meshes with the teeth on the rotary valve sleeve;
- the hydraulic accumulator is composed of an energy storage piston, an energy storage spring, an end cover, a sealing seat, a rubber pad, and is mounted on the housing The inner cavity of one end, the sealing seat and the rubber pad are fixedly mounted in
- the spring, the accumulator spring is a compression spring; the accumulator chamber is between the rotary valve and the hydraulic accumulator; the transmission mechanism is composed of a transmission gear, a gear shaft and a cross-slider coupling, and the transmission gear is installed through a connection key Gear shaft, the gear connected to the shaft by turning the valve body and Oldham coupling.
- One end of the rotary valve core is provided with an axial blind hole and a radial oil hole communicating therewith, and the end portion is provided with a retaining ring groove, and the other end is provided with a connecting tooth matched with the connecting tooth groove of the cross slide coupling;
- Installed in the rotary valve sleeve the axially positioned retaining ring is installed in the retaining ring groove;
- the radial oil hole is arranged on the rotary valve sleeve corresponding to the radial oil hole of the rotary spool, and is back
- the radial oil hole position of the rotary valve sleeve is provided with an annular groove, and the rotary wide sleeve with the rotary valve core is installed in the inner cavity of the casing;
- a high-pressure oil hole is arranged on the casing corresponding to the annular groove, corresponding to the axial direction of the energy storage cavity
- the position is provided with a low-pressure oil hole, and a radi
- the radial oil hole of the rotary valve sleeve is uniformly distributed on the circumference of the rotary valve sleeve on the axial position corresponding to the radial oil hole of the rotary valve core, and the number of the radial oil holes of the rotary valve sleeve is equal to the valve cam shaft and the rotary valve core
- the speed ratio N, N is a positive integer.
- the high pressure oil hole, the rotary valve sleeve annular groove, the rotary valve sleeve radial oil hole and the rotary valve core radial oil hole are arranged on the casing to form a rotary valve switch, and at least one oil control device is provided.
- Set a rotary valve switch, the number of rotary wide switches is equal to the number of cylinders of the internal combustion engine.
- a gap seal is used between the rotary valve core and the rotary valve sleeve, and a gap seal or a seal ring is used between the rotary valve sleeve and the housing.
- the seal ring is sealed, the seal groove is processed on both sides of the annular groove and the seal ring is mounted. Installed into the inner cavity of the housing; when the gap seal is used, there is no need to process the seal groove, and the rotary valve sleeve is directly installed into the inner cavity of the housing.
- the number of radial oil holes of the rotary valve sleeve in the same axial position is equal to the speed ratio N (N is a positive integer) of the valve camshaft to the rotary spool to ensure that the rotary valve switch is opened and closed once in one working cycle of the internal combustion engine.
- N is a positive integer
- the sealing seat of the hydraulic accumulator is installed in the inner cavity of the housing with an interference fit, and the rubber pad is fixedly attached to the end surface of the sealing seat; the accumulator piston is in a clearance fit with the inner cavity of the housing.
- the drive gear is mounted on the gear shaft via a connecting key and is positioned by the shoulder and the retaining ring.
- the gear shaft is in clearance fit with the inner cavity of the housing, and one end thereof is provided with connecting teeth matching the connecting slots of the cross-slider coupling; the cross-slider coupling is provided with two pairs of mutually perpendicular connecting slots, respectively.
- the gear shaft connecting tooth and the rotary valve core connecting tooth are connected, so that the gear shaft can drive the rotating wide core to rotate at the same time.
- the invention is connected to a fully variable hydraulic valve system of an internal combustion engine, and the transmission gear in the transmission mechanism of the device is connected with the valve camshaft of the internal combustion engine through a transmission chain, and the rack is connected with the servo motor or the proportional electromagnet by the servo
- the motor or proportional electromagnet is controlled; the high-pressure oil hole on the casing is connected with the high-pressure oil chamber that drives the hydraulic valve, and the low-pressure oil hole and the oil drain hole on the casing are connected with the low-pressure oil passage of the lubricating system of the internal combustion engine.
- the valve camshaft drives the transmission gear of the device through the transmission chain, and the transmission gear sequentially drives the gear shaft, the cross-slider coupling and the rotary valve core to rotate.
- the rotary valve switch is closed, and the valve cam drives the hydraulic tappet to generate high-pressure oil in the hydraulic drive system, high-pressure oil Pushing the hydraulic piston against the resistance of the valve spring to open the valve;
- the rotary valve switch is in an open state, the oil in the high pressure oil passage and the low pressure system The oil is connected to each other and the valve is closed by the force of the valve spring.
- the servo motor or proportional electromagnet drives the rack to rotate the rotary valve sleeve through the rotary wide sleeve gear. Therefore, the circumferential position of the radial oil hole of the rotary valve sleeve is adjustable with the operating condition of the internal combustion engine.
- the four-stroke internal combustion engine is in working state, if the ratio of the rotation speed of the valve camshaft to the rotary spool is N, the rotary valve sleeve is rotated through the ⁇ in the direction of the rotation of the rotary spool, and the radial oil of the rotary spool is rotated.
- the phase angle of the hole communicating with the radial oil hole of the rotary valve sleeve will be delayed accordingly.
- the crank angle (the crankshaft speed of the four-stroke internal combustion engine is twice the speed of the valve camshaft), that is, the opening and closing timing of the rotary valve switch Correspondingly delay 2 ⁇ ⁇ , the crank angle; similarly, the direction of the rotary valve sleeve against the rotary spool
- the phase angle of the radial oil hole of the rotary valve core and the radial oil hole of the rotary valve sleeve will be advanced 2 ⁇ ⁇ 2 degrees crank angle, and the opening and closing time of the rotary valve switch is correspondingly advanced 2 ⁇ ⁇ 2 Degree of crank angle. Since 0>, or 2 angles can be continuously changed from 0° to 180°, the opening and closing phase angles of the rotary valve switch can be continuously variable from 0° to 360° crank angle.
- the oil control device of the invention has the function of opening and closing valve between the hydraulic driving device and the low-pressure system, and the opening and closing timing (phase angle) can be arbitrarily adjusted within a certain range, and also has the functions of energy storage and sealing, and the manufacturing process simple. According to the number of cylinders of the internal combustion engine, matching the corresponding oil control device can meet the combined requirements of the fully variable hydraulic valve mechanism of the single cylinder and multi-cylinder internal combustion engine.
- Figure 1 is a cross-sectional view showing the structure of the present invention
- Figure 2 is a cross-sectional view of the ⁇ - ⁇ of Figure 1;
- Figure 3 is a cross-sectional view of the ⁇ - ⁇ of Figure 1;
- FIG. 4 is a schematic structural view of a fully variable hydraulic valve system of an internal combustion engine.
- valve cam ⁇ -2 valve camshaft ⁇ -3, hydraulic tappet ⁇ -4, check valve ⁇ -5, internal combustion engine lubrication system ⁇ -6, low pressure oil passage ⁇ -7, valve spring ⁇ -8 , valve ⁇ -9, hydraulic piston ⁇ -10, high pressure Oil channel.
- the present invention comprises a housing 1 and a rotary valve, a hydraulic accumulator and a transmission mechanism installed in the housing 1;
- the rotary valve is composed of a rotary valve core 3 and a rotary valve sleeve 2 Composition, the rotary valve sleeve 2 is provided with gear teeth 2-1, the rotary valve core 3 is installed in the rotary valve sleeve 2, the rotary valve sleeve 2 is installed in the inner cavity of the casing 1; on the casing 1 and the rotary valve sleeve 2
- the upper part of the upper tooth 2-1 corresponds to a rack cavity, and the rack 2-2 is mounted in the rack cavity and meshes with the teeth on the rotary valve sleeve 2;
- the hydraulic accumulator is composed of the energy storage piston 4- 1.
- the accumulating spring 4-2, the end cap 4-4, the sealing race 4-6 and the rubber pad 4-5 are assembled and installed in the inner cavity of the housing 1 to seal the race 4-6 and the rubber pad 4 -5 is fixedly mounted in the inner cavity of the housing 1, the energy storage piston
- the accumulator spring 4-2 is installed between the energy storage piston 4-1 and the end cover 4-4;
- the accumulator chamber is between the valve and the hydraulic accumulator;
- the transmission mechanism is composed of transmission gear 5-1, gear shaft 5-2, connecting key 5-3 and cross slide coupling 5-4, transmission gear 5-1 Mounted on the gear shaft via the connection key 5-3
- the gear shaft 5-2 is connected to the rotary spool 3 via the cross slide coupling 5-4.
- One end of the rotary valve core 3 is provided with an axial blind hole 3-2 and a radial oil hole 3-1 communicating therewith, and the end portion is provided with a retaining ring groove, and the other end is provided with a connection with the cross slider coupling 5-4.
- the tooth groove is matched with the connecting tooth 3-3; the rotary valve core 3 is installed in the rotary valve sleeve 2, and the axially positioned retaining ring is installed in the retaining ring groove; the radial oil hole 3 on the rotary wide sleeve 2 and the rotary wide core 3
- the radial oil hole 2-5 is disposed corresponding to the axial position of the -1, and the annular groove 2-4 is disposed at the position of the radial oil hole 2-5 of the rotary valve sleeve, and the rotary valve sleeve 2 equipped with the rotary valve core 3 is installed.
- the inner cavity of the casing 1 is provided with a high-pressure oil hole 1-1 at a corresponding position on the casing 1 and the annular groove 2-4, and a low-pressure oil hole 1-2 is disposed at a position corresponding to the axial direction of the energy storage cavity.
- the bottom of the inner casing of the piston can be provided with a diametrical oil drain hole 1-3, and the end cover 4-4 has an air outlet 4-3.
- the radial oil hole 2-5 of the rotary valve sleeve is evenly distributed on the circumference of the axial position corresponding to the rotary wide core radial oil hole 3-1, and the radial oil hole of the rotary valve sleeve 2-5
- the number is equal to the speed ratio N of the valve camshaft to the rotary spool, and N is a positive integer.
- the high pressure oil hole 1-1, the rotary wide sleeve annular groove 2-4, the rotary valve sleeve radial oil hole 2-5 and the rotary valve core radial oil hole 3-1 are provided on the casing 1.
- At least one set of rotary valve KK is set in one oil control device, and the number of rotary valve switches ⁇ is equal to the number of cylinders of the internal combustion engine.
- the gap between the rotary valve core 3 and the rotary valve sleeve 2 is sealed by a gap, and the rotary valve sleeve 2 and the housing 1 are sealed by a gap seal or a seal ring.
- a gap seal or a seal ring When the seal is sealed by a seal ring, both sides of the annular sleeve 2-4 are swiveled.
- the gap sealing is adopted, the sealing ring groove is not required to be processed, and the rotary valve sleeve 2 is directly installed. It is loaded into the inner cavity of the housing 1.
- the sealing seat 4-6 of the hydraulic accumulator is installed in the inner cavity of the casing 1 to adopt an interference fit, and the rubber pad 4-5 is fixed and fixed on the sealing seat 4-6 by a vulcanization process; the accumulator piston 4-1 and The inner cavity of the casing 1 is a clearance fit, the end cover 4-4 is fixedly mounted on the end surface of one end of the casing 1, and the energy storage compression spring 4-2 is installed between the energy storage piston 4-1 and the end cover 4-4.
- the transmission gear 5-1 is mounted on the gear shaft 5-2 via a connecting key 5-3 and is positioned by the shoulder and the retaining ring.
- the gear shaft 5-2 is in clearance fit with the inner cavity of the housing 1, and one end thereof is provided with connecting teeth 5-5 matched with the connecting slots of the cross-slider coupling 5-4, and the cross-slider coupling 5 is passed.
- -4 connects the gear shaft 5-2 and the rotary valve core 3, so that the gear shaft 5-2 can drive the rotary valve core 3 to rotate at the same time.
- connecting teeth can be provided at both ends of the gear shaft 5-2, so that two independent sets of oil control devices of the present invention can be connected.
- the invention is connected to the hydraulic full variable valve system of the internal combustion engine, and the transmission gear 5-1 and the valve camshaft N-2 are connected through the transmission chain, and the camshaft N-2 is provided.
- the ratio of the rotational speed to the transmission gear 5-1 is a positive integer N.
- Rack 2-2 ⁇ servo motor or proportional solenoid control, high pressure oil hole 1-1 on the housing is connected with high pressure oil passage N-10, low pressure oil hole 1-2 on the housing and low pressure oil passage ⁇ -6 connection.
- valve camshaft ⁇ -2 drives the transmission gear 5-1 through the transmission chain.
- the rotary valve switch ⁇ drives the tappet ⁇ -3 to generate high-pressure oil, and the high-pressure oil pushes the hydraulic piston ⁇ -9 against the resistance of the valve spring ⁇ -7 to open the valve ⁇ -8;
- the rotary valve switch ⁇ is in an open state, and the oil in the high pressure oil passage N-10 and the internal combustion engine lubrication system ⁇ -5 The oil inside is connected to each other, the high-pressure oil flows out, and the valve ⁇ -8 is closed by the valve spring ⁇ -7.
- the circumferential position of the rotary valve sleeve radial oil hole 2-5 is adjustable.
- the ratio of the rotation speed of the valve camshaft ⁇ -2 to the rotary spool 3 is 1, then the number of the radial oil holes 2-5 of the rotary wide sleeve is 1, when the rotary valve sleeve 2
- the phase angle of the radial oil hole 3-1 of the rotary valve core and the radial oil hole 2-5 of the rotary valve sleeve will be delayed by 2 ⁇ ⁇ , degree
- the crank angle that is, the opening and closing timing of the rotary valve switch is delayed by 2 ⁇ ⁇ , the crank angle;
- the rotary valve sleeve 2 is rotated over the direction of the rotary valve core 3 by
- the coaxiality of the gear shaft 5-2 and the rotary spool 3 is required to be high when driving through the transmission gear 5-1, using the cross
- the slider coupling 5-4 can reduce the requirement for coaxiality, thereby simplifying the manufacturing process and reducing the cost. Since the rotary valve switch is intermittently opened and closed, the oil pressure in the accumulator chamber is unstable, and the accumulator is used to store and release the hydraulic pressure energy, which can reduce the fluctuation of the hydraulic system pressure.
- the oil control device of the present invention can be matched correspondingly according to the number of cylinders of the internal combustion engine to form an oil control device suitable for single-cylinder and multi-cylinder internal combustion engines.
- radial oil holes and corresponding annular grooves are respectively provided at two different axial positions on the outer casing 1, the rotary valve sleeve 2 and the rotary valve core 3, thereby forming two independent rotary valve switches.
- this oil control device with two rotary valve switches has only one rotary valve plug 3 and rotary valve sleeve 2, and only one accumulator and one transmission mechanism are used.
- three sets of independent rotary wide switch ⁇ can be arranged in the oil control device to form an oil control device suitable for the three-cylinder internal combustion engine.
- four independent rotary valve switches are provided, and so on.
- a gear shaft 5-2 is formed to drive the two oil control devices, which can also meet the requirements of the multi-cylinder internal combustion engine. Therefore, the multi-cylinder internal combustion engine can also adopt two or more sets of oil control devices, and the combination of the cylinder numbers can be satisfied by different combinations.
- a two-cylinder internal combustion engine can use two gear shafts 5-2 to drive two sets of oil control devices including a single rotary wide switch; a three-cylinder internal combustion engine can use a gear shaft 5-2 to drive a set of two rotary wide switches.
- the oil control device drives the oil control device with a single rotary valve switch at the other end; the two oil control devices with two rotary valve switches can be used for the four-cylinder internal combustion engine; the two oil control valves with three rotary valves can be used for the six-cylinder internal combustion engine.
- the oil control device of the present invention has the function of opening and closing valves between the hydraulic drive device and the low pressure system, and the opening and closing timing (phase angle) can be operated with the internal combustion engine over a wide range.
- the working conditions can be adjusted freely.
- the device also has the functions of energy storage and sealing, and the manufacturing process is simple, and can meet the requirements of the multi-cylinder internal combustion engine through different combinations, and the matching application is convenient and flexible.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Device For Special Equipments (AREA)
- Sliding Valves (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016526386A JP6169795B2 (ja) | 2013-07-15 | 2013-08-12 | 内燃機関の完全可変油圧バルブシステムのオイル制御装置 |
RU2015154820A RU2642946C2 (ru) | 2013-07-15 | 2013-08-12 | Регулятор масла во всережимной системе клапанного гидрораспределителя двигателя внутреннего сгорания |
KR1020157037248A KR101730375B1 (ko) | 2013-07-15 | 2013-08-12 | 내연기관의 완전 가변 유압 밸브 시스템의 오일 제어 장치 |
US14/902,268 US9995188B2 (en) | 2013-07-15 | 2013-08-12 | Oil control device for fully variable hydraulic valve system of internal combustion engine |
EP13889659.2A EP3023607B1 (en) | 2013-07-15 | 2013-08-12 | Oil control device for fully variable hydraulic valve system of internal combustion engine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320419127.8U CN203347871U (zh) | 2013-07-15 | 2013-07-15 | 一种内燃机全可变液压气门系统的控油装置 |
CN201310296611.0A CN103334805B (zh) | 2013-07-15 | 2013-07-15 | 一种内燃机全可变液压气门系统的控油装置 |
CN201320419127.8 | 2013-07-15 | ||
CN201310296611.0 | 2013-07-15 |
Publications (1)
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EP (1) | EP3023607B1 (zh) |
JP (1) | JP6169795B2 (zh) |
KR (1) | KR101730375B1 (zh) |
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Cited By (4)
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CN110318836A (zh) * | 2019-08-12 | 2019-10-11 | 绵阳富临精工机械股份有限公司 | 一种径向回路节能型机油控制阀 |
CN110985156A (zh) * | 2020-01-04 | 2020-04-10 | 潍坊力创电子科技有限公司 | 具有缓冲功能的全可变电液气门系统 |
CN111075531A (zh) * | 2020-01-10 | 2020-04-28 | 潍坊力创电子科技有限公司 | 全可变电液气门系统 |
CN111173585A (zh) * | 2020-01-10 | 2020-05-19 | 潍坊力创电子科技有限公司 | 全可变电液气门系统 |
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CN110344908B (zh) * | 2019-07-12 | 2020-04-03 | 龙口中宇汽车风扇离合器有限公司 | 一种实现气门开启次数可变的液压气门机构及内燃机 |
CN115071011B (zh) * | 2022-08-22 | 2022-11-04 | 佛山市德亿盛业制辊有限公司 | 一种表面加热均匀的加热辊 |
CN116771460B (zh) * | 2023-08-17 | 2023-11-07 | 潍坊力创电子科技有限公司 | 液压全升程连续可变气门系统 |
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- 2013-08-12 EP EP13889659.2A patent/EP3023607B1/en active Active
- 2013-08-12 WO PCT/CN2013/000948 patent/WO2015006886A1/zh active Application Filing
- 2013-08-12 KR KR1020157037248A patent/KR101730375B1/ko active IP Right Grant
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CN110318836A (zh) * | 2019-08-12 | 2019-10-11 | 绵阳富临精工机械股份有限公司 | 一种径向回路节能型机油控制阀 |
CN110985156A (zh) * | 2020-01-04 | 2020-04-10 | 潍坊力创电子科技有限公司 | 具有缓冲功能的全可变电液气门系统 |
CN111075531A (zh) * | 2020-01-10 | 2020-04-28 | 潍坊力创电子科技有限公司 | 全可变电液气门系统 |
CN111173585A (zh) * | 2020-01-10 | 2020-05-19 | 潍坊力创电子科技有限公司 | 全可变电液气门系统 |
Also Published As
Publication number | Publication date |
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EP3023607B1 (en) | 2017-06-21 |
EP3023607A1 (en) | 2016-05-25 |
RU2642946C2 (ru) | 2018-01-29 |
US9995188B2 (en) | 2018-06-12 |
EP3023607A4 (en) | 2016-08-03 |
KR20160034859A (ko) | 2016-03-30 |
US20160237865A1 (en) | 2016-08-18 |
JP2016528427A (ja) | 2016-09-15 |
RU2015154820A (ru) | 2017-06-22 |
KR101730375B1 (ko) | 2017-04-26 |
JP6169795B2 (ja) | 2017-07-26 |
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