CN2581698Y - Hydraulic distributing device for engine - Google Patents
Hydraulic distributing device for engine Download PDFInfo
- Publication number
- CN2581698Y CN2581698Y CN 02262354 CN02262354U CN2581698Y CN 2581698 Y CN2581698 Y CN 2581698Y CN 02262354 CN02262354 CN 02262354 CN 02262354 U CN02262354 U CN 02262354U CN 2581698 Y CN2581698 Y CN 2581698Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- pump
- valve
- shaped
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Valve Device For Special Equipments (AREA)
Abstract
The utility model relates to a hydraulic distributing device for an engine, which is composed of a hydraulic distributing phase pump and a valve hydraulic driving device, wherein, the hydraulic distributing phase pump is composed of a cam shaft, a casing, a front cover, a back cover, a sealing rubber ring, an oil guiding disk and a pump disk assembly; the pump disk assembly is composed of a pump disk, a plunger, a positioning and returning pin, a worm gear, a returning disk and a worm. The cam shaft is supported in the casing through the front cover and the back cover; the cam shaft is provided with a cam; a pump disk is sheathed on the cam and is positioned in the casing capable of turning around the casing; the returning disk is arranged on the cam shaft; the shape of an inner curved surface is correspondingly similar to the shape of a contour curve of the cam according to rotary angles; the oil guiding disk is positioned on one end in the casing; an annular oil guiding groove on the oil guiding disk is communicated with annular oil guiding grooves on both sides of the pump disk through oil guiding holes. The casing is provided with an oil outlet, and the oil outlet is connected with an oil inlet of the valve hydraulic driving device; the back cover is provided with a low-pressure oil inlet, and the low-pressure oil inlet is communicated with the oil guiding groove on the oil guiding disk. The utility model can make the distributing phase change according to the change of rotary speed of the engine, working temperature, ambient temperature, altitude and pressure condition, and can achieve an optimum state of mixture ratio of combustion, feeding gas and waste gas of the engine to achieve an optimum effect of reducing discharge of harmful gas. The utility model has the advantage of little space occupation, and is favorable for optimum design for the engine.
Description
Technical field
The utility model relates to a kind of engine liquid and is press-fitted device of air.
Background technique
The unlatching of valve and closing motion all are to finish by mechanical transmission in the available engine air distributing device, its port timing is difficult to variable significantly at random regulation and control, can not change according to rotating speed, operating temperature and the ambient temperature of motor and the variation of altitude air pressure conditions, make burning, air inlet and the waste gas proportions of ingredients of motor be difficult to reach the optimum state, do not reach the optimum efficiency that reduces noxious gas emission, and it is big to take up room, and influences the optimal design of motor.
Summary of the invention
Technical problem to be solved in the utility model: design a kind of engine liquid and be press-fitted device of air, its port timing can variable significantly at random regulation and control, can change according to rotating speed, operating temperature and the ambient temperature of motor and the variation of altitude air pressure conditions, easily make burning, air inlet and the waste gas proportions of ingredients of motor reach the optimum state, reach the optimum efficiency that reduces noxious gas emission, and it is little to take up room, and is beneficial to the optimal design of motor.
Design proposal of the present utility model: a kind of engine liquid is press-fitted device of air, be made of hydraulic pressure port timing pump and valve fluid pressure drive device, hydraulic pressure port timing pump is made of camshaft (1), housing (2), protecgulum (3), bonnet (4), O-ring seal (13), Oil Guide dish (14) and pump dise assembly; The pump dise assembly is made of pump dise (5), plunger (6), location and return pin (7), turbo tooth (10), backhaul dish (11), worm screw (12); Camshaft (1) is by protecgulum (3), bonnet (4) is bearing in the housing (2), be shaped on cam (15) on the camshaft (1), pump dise (5) is enclosed within and is positioned at housing (2) on the cam (15) and can rotates around housing (2), radially be shaped on plunger tube (16) and the measure-alike plunger tube filler opening (17) of radial position on the pump dise (5) corresponding to cylinder number and operation range angle, turbo tooth (10) is housed on the cylindrical of pump dise (5), and turbo tooth (10) is meshed with worm screw (12) on being installed in housing (2), the both sides that are positioned at each plunger tube (16) on pump dise (5) cylindrical are shaped on oil guide slot (18), on pump dise (5) cylindrical O-ring seal (13) is housed, make pump dise (5) when housing (2) rotates, keep sealing, the both sides of pump dise (5) are shaped on annular oil guide slot (19) respectively, and the annular oil guide slot (19) of both sides is by oil guiding hole (20) UNICOM, plunger tube filler opening (17) is positioned on the annular oil guide slot (19), the same side of plunger tube (16) on the pump dise (5) all is shaped on guiding groove (21), plunger (6) is arranged in plunger tube (16), one end of location and return pin (7) inserts in the plunger (6), and can with relative the trackslipping of plunger (6), the other end is positioned at guiding groove (21) and backhaul dish (11), backhaul dish (11) is installed on the camshaft (1), and it is corresponding similar that its negative camber shape and the outer profile curve shape of cam (15) are pressed corner; Oil Guide dish (14) is positioned at an end of housing (2), is shaped on annular oil guide slot (22) on the Oil Guide dish (14), and annular oil guide slot (22) is by annular oil guide slot (19) UNICOM of oil guiding hole (23) with pump dise (5) one sides; Be shaped on oil outlet (24) on the housing (2), and oil outlet (24) and plunger tube (16) outer end UNICOM; Bonnet (4) is provided with low pressure filler opening (25), and low pressure filler opening (25) and annular oil guide slot (22) UNICOM.
The inner of plunger (6) is provided with rotary roller (8).Be shaped on a plurality of cams (15) on the camshaft (1), be provided with a plurality of pump dise assemblies side by side, the corresponding pump dise assembly of each cam (15), and a plurality of pump dises (5) on the pump dise assembly can trackslip the mutual UNICOM of the annular oil guide slot (19) on it mutually.Housing (2) is provided with position limit pin (26), limiting stopper (27) and stop screw (28), and position limit pin (26), limiting stopper (27) and stop screw (28) are positioned between adjacent two pump dises (5).
The valve fluid pressure drive device is made of plane rotation valve (31), plane valve seat (32), valve guide bushing (33), packing ring (34), dish-shaped reed (35), jump ring (36), platen (37), steel ball (38), locating cover (39), revolution dial (40), roll sleeve (41), group plate (42), plunger body (43), plunger (44) and stroke limit drawing device (45); Plane rotation valve (31) is inserted into cylinder head (46) by valve guide bushing (33) and goes up rotatable, its lower end surface is shaped on vent (47), plane valve seat (32) is fixed on the cylinder head (46), be shaped on vent (48) on it, locating cover (39) is fixed on the cylinder head (46), platen (37) is fixed on the middle part of plane rotation valve (31) and is positioned at locating cover (39), the inboard of locating cover (39) upper-end surface is shaped on ball-and-socket (49), be shaped on two groups of four ball-and-sockets (50) on the upper-end surface of platen (37) corresponding to valve standard-sized sheet and complete shut-down, steel ball (38) major part is arranged in ball-and-socket (49), small part is arranged in ball-and-socket (50), dish reed (35) is positioned between two packing rings (34) and the middle part that is sleeved on plane rotation valve (31) is positioned at locating cover (39), and be close on the lower end surface of plane valve seat (32) by the spacing plane rotation valve (31) that makes of jump ring (36) precompressed, revolution dial (40) is fixed on the top of plane rotation valve (31), roll sleeve (41) is arranged on the upper-end surface of revolution dial (40), an end and the roll sleeve (41) of dialling plate (42) are hinged, the other end is fixed on the plunger (44), plunger (44) is positioned at plunger body (43), plunger body (43) is fixed on the cylinder head (46), its lower end is shaped on oil input channel (51), is provided with stroke limit drawing device (45).
Run distance caging device (45) is by stroke limit arm-tie (52), eccentric shaft (53), eccentric shaft positioning block (54), dish reed (55), adjust pad (56), micrometer adjusting screw (57) and positioning runner (58) constitute, one end of stroke limit arm-tie (52) is hinged on the plunger (44), the other end is hinged on the eccentric shaft (53), eccentric shaft (53) is arranged in eccentric shaft positioning block (54), adjusting pad (56) is arranged between eccentric shaft positioning block (54) interior edge face and the positioning runner (58), dish reed (55) is arranged in the eccentric shaft positioning block (54), between exterior edge face and the positioning runner (58), micrometer adjusting screw (57) is provided with on the positioning runner (58), withstands on the exterior edge face of eccentric shaft positioning block (54).
The valve fluid pressure drive device is made of spring valve (61), sleeve pipe (62), plunger body (63), plunger (64) and damping device (65); Plunger body (63) by sleeve pipe (62) be supported and fixed on cylinder head (66) go up and be positioned at spring valve (61) directly over, plunger (64) is arranged in the plunger tube (67) on the plunger body (63), its lower end withstands on the upper end of spring valve (61), damping device (65) is equipped with in the upper end, be shaped on filler opening (68) and oil outlet (69) on the plunger body (63), and filler opening (68) and oil outlet (69) communicate with plunger tube (67).Damping device (65) is an elastic buffer head.
Advantage that the utlity model has and effect:
1, has port timing that mechanical transmission is difficult to the realize function of variable regulation and control significantly at random.Therefore, can be according to rotating speed, operating temperature and the ambient temperature of motor and the variation demand of altitude air pressure conditions, the switch phase of motor-driven change air intake-exhaust reaches the compensation air inlet and improves burning and control air inlet and waste gas proportions of ingredients, reduces the optimum efficiency of noxious gas emission.
2, utilize the discharge capacity of hydraulic pressure port timing pump delivery, and the little characteristics of respective element inertia can make effective ventilation the open amount of valve in the unit time increase greater than the hydraulic valve driver.This to improve the inflation rate, moment of torsion when reducing exhaust resistance and improving high rotating speed is very favourable.
3, in multicylinder engine, all intake valve switches of hydraulic pressure port timing pump control, an all shared separately phase cam makes the port timing uniformity improve, phase cam manufacture and design simplification.
4, according to the modification scope of needed port timing,, just can be applicable to the valve control of multiple motor as long as change the phase cam of pairing and the corner lift curve of backhaul dish.
5, this hydraulic pressure air distributing device can make engines distribution save in the past mechanical rotation rod member and corresponding location and occupation space, and the structural design that can make motor more flexibly and simplification (as V-type engine).
6, owing to adopt hydraulic driving,, just can realize exhaust brake and emergency shutdown as long as increase simple electromagnetism hydraulic control valve.If be used with electric jet technology, can realize multicylinder engine easily according to the load state needs, only allow the wherein control of partial cylinders participation work, to energy-conservation and to reduce noxious emission very favourable.
7, can change air inlet phase in the engine start stage, improve starting performance.
8, because the variable significantly at random adjusting function of port timing that this device had, when it was applied in the motor of " discharge capacity working form less ", the reserve function that this standard motor is had was given full play to and is utilized.
Description of drawings
Fig. 1 is the utility model hydraulic pressure port timing pump structure schematic representation,
Fig. 2 is the structure left view of the utility model pump dise,
Fig. 3 is the local cylindrical planar development schematic representation of the utility model pump dise,
Fig. 4 is the structure left view of the utility model backhaul dish,
Fig. 5 is the structural representation of the utility model plane rotation valve and fluid pressure drive device thereof,
Fig. 6 is plunger body, plunger and the oil channel structure schematic representation among Fig. 5,
Fig. 7 is the fluid pressure drive device structural representation of the utility model tradition valve.
Embodiment
1,2,3,4,5,6 first kind of embodiment of the present utility model described in conjunction with the accompanying drawings: convection type.Be applicable to plane rotation valve and fluid pressure drive device thereof.
Engine liquid is press-fitted device of air, is made of hydraulic pressure port timing pump and valve fluid pressure drive device, and hydraulic pressure port timing pump is made of camshaft (1), housing (2), protecgulum (3), bonnet (4), O-ring seal (13), Oil Guide dish (14) and pump dise assembly; The pump dise assembly is made of pump dise (5), plunger (6), location and return pin (7), turbo tooth (10), backhaul dish (11), worm screw (12); Camshaft (1) is by protecgulum (3), bonnet (4) is bearing in the housing (2), be shaped on cam (15) on the camshaft (1), pump dise (5) is enclosed within and is positioned at housing (2) on the cam (15) and can rotates around housing (2), radially be shaped on plunger tube (16) and the measure-alike plunger tube filler opening (17) of radial position on the pump dise (5) corresponding to cylinder number and operation range angle, turbo tooth (10) is housed on the cylindrical of pump dise (5), and turbo tooth (10) is meshed with worm screw (12) on being installed in housing (2), the both sides that are positioned at each plunger tube (16) on pump dise (5) cylindrical are shaped on oil guide slot (18), on pump dise (5) cylindrical O-ring seal (13) is housed, make pump dise (5) when housing (2) rotates, keep sealing, the both sides of pump dise (5) are shaped on annular oil guide slot (19) respectively, and the annular oil guide slot (19) of both sides is by oil guiding hole (20) UNICOM, plunger tube filler opening (17) is positioned on the annular oil guide slot (19), the same side of plunger tube (16) on the pump dise (5) all is shaped on guiding groove (21), plunger (6) is arranged in plunger tube (16), and the inner of plunger (6) is provided with rotary roller (8).One end of location and return pin (7) inserts in the plunger (6), and can with relative the trackslipping of plunger (6), the other end is positioned at guiding groove (21) and backhaul dish (11), backhaul dish (11) is installed on the camshaft (1), and it is corresponding similar that its negative camber shape and the outer profile curve shape of cam (15) are pressed corner; Oil Guide dish (14) is positioned at an end of housing (2), is shaped on annular oil guide slot (22) on the Oil Guide dish (14), and annular oil guide slot (22) is by annular oil guide slot (19) UNICOM of oil guiding hole (23) with pump dise (5) one sides; Be shaped on oil outlet (24) on the housing (2), and oil outlet (24) and plunger tube (16) outer end UNICOM; Bonnet (4) is provided with low pressure filler opening (25), and low pressure filler opening (25) and annular oil guide slot (22) UNICOM.
With four-in-line formula motor is example: be shaped on four cams (15) on the camshaft (1), be provided with four pump dise assemblies side by side, the corresponding pump dise assembly of each cam (15), and four pump dises (5) on the pump dise assembly can trackslip the mutual UNICOM of the annular oil guide slot (19) on it mutually.Housing (2) is provided with position limit pin (26), limiting stopper (27) and stop screw (28), and position limit pin (26), limiting stopper (27) and stop screw (28) are positioned between adjacent two pump dises (5).
The valve fluid pressure drive device is made of plane rotation valve (31), plane valve seat (32), valve guide bushing (33), packing ring (34), dish-shaped reed (35), jump ring (36), platen (37), steel ball (38), locating cover (39), revolution dial (40), roll sleeve (41), group plate (42), plunger body (43), plunger (44) and stroke limit drawing device (45); Plane rotation valve (31) is inserted into cylinder head (46) by valve guide bushing (33) and goes up rotatable, the lower end surface is shaped on vent (47), plane valve seat (32) is fixed on the cylinder head (46), be shaped on vent (48) on it, locating cover (39) is fixed on the cylinder head (46), platen (37) is fixed on the middle part of plane rotation valve (31) and is positioned at locating cover (39), the inboard of locating cover (39) upper-end surface is shaped on ball-and-socket (49), be shaped on two groups of four ball-and-sockets (50) on the upper-end surface of platen (37) corresponding to valve standard-sized sheet and complete shut-down, steel ball (38) major part is arranged in ball-and-socket (49), small part is arranged in ball-and-socket (50), dish reed (35) is positioned between two packing rings (34) and the middle part that is sleeved on plane rotation valve (31) is positioned at locating cover (39), and be close on the lower end surface of plane valve seat (32) by the spacing plane rotation valve (31) that makes of jump ring (36) precompressed, revolution dial (40) is fixed on the top of plane rotation valve (31), roll sleeve (41) is arranged on the upper-end surface of revolution dial (40), an end and the roll sleeve (41) of dialling plate (42) are hinged, the other end is fixed on the plunger (44), plunger (44) is positioned at plunger body (43), plunger body (43) is fixed on the cylinder head (46), its lower end is shaped on oil input channel (51), is provided with stroke limit drawing device (45).Stroke limit drawing device (45) is made of stroke limit arm-tie (52), eccentric shaft (53), eccentric shaft positioning block (54), dish-shaped reed (55), adjustment pad (56), micrometer adjusting screw (57) and positioning runner (58).One end of stroke limit arm-tie (52) is hinged on the plunger (44), the other end is hinged on the eccentric shaft (53), eccentric shaft (53) is arranged in eccentric shaft positioning block (54), adjusting pad (56) is arranged between eccentric shaft positioning block (54) interior edge face and the positioning runner (58), dish reed (55) is arranged between inside and outside end face of eccentric shaft positioning block (54) and the positioning runner (58), micrometer adjusting screw (57) is provided with on the positioning runner (58), withstands on the exterior edge face of eccentric shaft positioning block (54).Can adjust the stroke of plunger (44) by adjusting pad (56) and micrometer adjusting screw (57),, plunger stroke is increased, otherwise then reduce even eccentric shaft positioning block (54) moves near plunger (44).
Plane rotation valve and fluid pressure drive device are housed respectively on the intake valve of cylinder and the exhaust valve, four oil outlets of hydraulic pressure port timing pump join by the filler opening of the plane rotation valve fluid pressure drive device on high-pressure oil pipe and intake valve and the exhaust valve respectively, with the unlatching of first pump dise assembly and corresponding cam control intake valve thereof (hereinafter to be referred as the turn on pump dish and open cam), control close (hereinafter to be referred as closing pump dise and closing cam) of intake valve with second pump dise assembly and corresponding cam thereof, with the unlatching of the 3rd pump dise assembly and corresponding cam control exhaust valve thereof, control closing of exhaust valve with the 4th pump dise assembly and corresponding cam thereof.The pump oil content of controlling same valve does not act on two of plunger of plane rotation valve fluid pressure drive device to the top direction, the corner resorption discharge capacity Q when opening cam and beginning to descend from crossing peak
α hCorner pump oil discharge capacity Q in the time of must beginning from closing pump dise plunger filler opening more than or equal to the pass cam
α bIf, Q
α h＜Q
α b, oil then can take place hit damage.Satisfy Q
α h=Q
α bThe minimum angle of opening cam and closing between the highest 2 of the cam be the minimum valve timing diagram Q that can realize
MinQ
MinAfter determining in specific design, it is spacing that the limit stoper of compositions such as available stop screw, position limit pin and limiting stopper carries out safety.
Hydraulic pressure port timing pump work principle: hydraulic oil enters the Oil Guide dish by the low pressure filler opening, by oil guide slot on it and oil guiding hole low pressure oil is delivered to pump dise, pump dise can rotate around housing, and adjacent two pump dises can trackslip mutually, therefore all there are oil guide slot and oil guiding hole in the both sides of each pump dise, no matter how pump dise rotates and all can obtain low pressure oil supply.Engine crankshaft drives the camshaft rotation with 2: 1 speed ratio, cam promotes plunger motion from inside to outside in plunger tube by rotary roller, begin pump oil when plunger moves from inside to outside when closing filler opening on the plunger tube, high pressure oil is connected to corresponding valve fluid pressure drive device by the oil outlet on the housing.Backhaul dish and camshaft rotate synchronously, do drawback movement from outside to inside by guiding groove, location and return pin pulling plunger, make the filler opening plunger tube oil-feed that is opened, and prepare for pump oil next time, so move in circles.First and second pump dise assembly and corresponding cam thereof are one group and form the assembly control relation, third and fourth pump dise assembly and corresponding cam thereof are one group and form the assembly control relation, can be according to rotating speed, operating temperature and ambient temperature and the altitude air pressure conditions of motor, send rotation command according to the best simulation laboratory data to actuating motor by electronic measurement and control system, make pump dise rotate a predetermined angle by the worm and worm wheel tooth, the air intake-exhaust phase place is regulated, when pump dise rotates along camshaft, pump oil phase position will lag behind, otherwise then can shift to an earlier date.Cooperatively interact between two pump dises in one group, just can control the unlatching moment and the close moment of valve.Stop screw defines the limit position that every group of pump dise rotates, and position limit pin and limiting stopper define the minimum valve timing diagram Qmin between two pump dises on the same group.To play safety protection effect and assembling and positioning effect.
Plane rotation valve and fluid pressure drive device working principle: by the next high pressure oil of the corresponding oil outlet of hydraulic pressure port timing pump turn on pump dish, enter an end of plunger from a wherein end of plunger body oil input channel, promote plunger motion, plunger drives the plate of dialling fixed thereon and moves, stir rotary disk by roll sleeve, and then drive the plane rotation valve and rotate, make it with the plane valve seat between the former vent that is in the staggered seal state lead to complete matching mutually from beginning and open, finish open function.When platen is followed the valve rotation, ball-and-socket on it will leave original position, thereon under the forcing of steel ball, platen overcomes the distance of the rebounding force of dish-shaped reed to a Δ h of bottom offset, drive valve also to the distance of a Δ h of bottom offset, so just alleviated pivoting friction and wearing and tearing between valve and the valve seat.When valve arrived the position of opening fully, another group ball-and-socket on the platen alignd with steel ball again, and under the effect of dish-shaped reed, valve is adjacent to again with valve seat again.Close the high pressure oil that the corresponding oil outlet of pump dise comes by hydraulic pressure port timing pump, enter the other end of plunger from the other end of plunger body oil input channel, promote plunger and do drawback movement, plunger drives the plate of dialling fixed thereon and moves, stir rotary disk by roll sleeve, and then drive the plane rotation valve and rotate, make it and the plane valve seat between vent get back to the staggered seal state again from the complete matching open mode, finish closing function.Valve also to the distance of a Δ h of bottom offset, just is adjacent to valve seat when closing fully in closing closed procedure.
The reciprocating stroke volume in the plunger left and right sides is identical, and the little XQ discharge capacity of supplying with than hydraulic pressure port timing pump of quantitative high pressure oil.When plunger motion will arrive predetermined stroke, the plunger back oil road begins to communicate with the plunger body back oil road, the high pressure oil of XQ discharge capacity begins to discharge, because XQ discharge capacity and effect of inertia, the plunger very little distance, delta S that also will travel forward, the area that back oil road is communicated continues to increase, up to being held by the arm-tie of run distance caging device and stopping.Unidirectional back pressure valve is housed on the back oil road of plunger body, is provided with suitable back pressure value, only allow to be higher than the oil outflow of back pressure value or to flow back to fuel tank, do not allow suck-back refluence phenomenon.
The XQ discharge capacity has emptying, heat radiation, speed and opens, compensates four effects greatly of leaking.Can make valve that an accelerated motion more superior than mechanical type distribution device is arranged when opening movement, the effective ventilation amount of opening in the unit time is increased, on the other hand, at the port timing total angle of rotation greater than minimum valve timing diagram Q
MinSituation under, valve has the time of a stop in the position of standard-sized sheet, this also is that the mechanical type distribution device is difficult to realize.Because these characteristics, to improving the inflation rate and reduce exhaust resistance, and the moment of torsion when improving the high rotating speed of motor is very favourable.
1,2,3,4,7 second kind of embodiment of the present utility model described in conjunction with the accompanying drawings: flow deviding type.Be applicable to conventional springs valve and fluid pressure drive device thereof.
Engine liquid is press-fitted device of air and is made of hydraulic pressure port timing pump and valve fluid pressure drive device.Hydraulic pressure port timing pump structure and working principle and first kind of embodiment are basic identical, and difference just can be cancelled the limit stoper that position limit pin (26), limiting stopper (27) and stop screw (28) are formed.
The valve fluid pressure drive device is made of spring valve (61), sleeve pipe (62), plunger body (63), plunger (64) and damping device (65); Plunger body (63) by sleeve pipe (62) be supported and fixed on cylinder head (66) go up and be positioned at spring valve (61) directly over, plunger (64) is arranged in the plunger tube (67) on the plunger body (63), its lower end withstands on the upper end of spring valve (61), damping device (65) is equipped with in the upper end, be shaped on filler opening (68) and oil outlet (69) on the plunger body (63), and filler opening (68) and oil outlet (69) communicate with plunger tube (67).Damping device (65) is an elastic buffer head.
On two intake valves of cylinder and two exhaust valves spring valve and fluid pressure drive device are housed all, four oil outlets of hydraulic pressure port timing pump join by the filler opening of the valve fluid pressure drive device on high-pressure oil pipe and intake valve and the exhaust valve respectively, control the unlatching of an intake valve with first pump dise assembly and corresponding cam thereof, control the unlatching of another intake valve with second pump dise assembly and corresponding cam thereof, with the unlatching of the 3rd pump dise assembly and a corresponding exhaust valve of cam control thereof, control the unlatching of another exhaust valve with the cam of the 4th pump dise assembly and correspondence thereof.Adopt synthetic method regulation and control valve of the time difference to open and close phase place.
Working principle: the high pressure oil that is come by the corresponding oil outlet of hydraulic pressure port timing pump enters plunger body by the filler opening on the plunger body and promotes plunger and move downward, and then promotes the spring valve and move downward and open valve.The stroke volume that plunger pumps is identical, and the little XQ discharge capacity of supplying with than hydraulic pressure port timing pump of quantitative high pressure oil.When plunger arrives predetermined stroke, filler opening on the plunger body communicates with oil outlet, the XQ discharge capacity begins to discharge, after the XQ discharge capacity has been arranged, under the effect of valve spring, plunger is upwards pushed up back, until cutting off the filler opening on the plunger body and the path of oil outlet, after this, when the cam of hydraulic pressure port timing pump when peak begins to descend, spring valve and plunger are followed and are moved upward until closing, and wait for entering next circulation.When valve was closed fully, the buffer head of plunger head and plunger tube afterbody kept suitable gap, for plunger inertia buffering, and guaranteed fitting tightly of valve and valve seat.
1,2,3,4,7 the third embodiment of the present utility model is described in conjunction with the accompanying drawings: the interflow formula.Be applicable to conventional springs valve and fluid pressure drive device thereof.
Engine liquid is press-fitted device of air and is made of hydraulic pressure port timing pump and valve fluid pressure drive device, and the structure of hydraulic pressure port timing pump and valve fluid pressure drive device and working principle are identical with second kind of embodiment, and difference is:
Spring valve and fluid pressure drive device all are housed on the intake valve of cylinder and the exhaust valve, four oil outlets of hydraulic pressure port timing pump join by the filler opening of the valve fluid pressure drive device on high-pressure oil pipe and intake valve and the exhaust valve respectively, with the unlatching of two the common control in back, pumps oil interflow intake valves of first pump dise assembly and corresponding cam thereof and second pump dise assembly and corresponding cam thereof, control the unlatching of exhaust valves jointly with the back, two pumps oil interflow of the 3rd pump dise assembly and corresponding cam thereof and the 4th pump dise assembly and corresponding cam thereof.Utilize the generated time difference of two pump oil to regulate and control valve switching phase place.
Claims (8)
1, a kind of engine liquid is press-fitted device of air, be made of hydraulic pressure port timing pump and valve fluid pressure drive device, it is characterized in that: hydraulic pressure port timing pump is made of camshaft (1), housing (2), protecgulum (3), bonnet (4), O-ring seal (13), Oil Guide dish (14) and pump dise assembly; The pump dise assembly is made of pump dise (5), plunger (6), location and return pin (7), turbo tooth (10), backhaul dish (11), worm screw (12); Camshaft (1) is by protecgulum (3), bonnet (4) is bearing in the housing (2), be shaped on cam (15) on the camshaft (1), pump dise (5) is enclosed within and is positioned at housing (2) on the cam (15) and can rotates around housing (2), radially be shaped on plunger tube (16) and the measure-alike plunger tube filler opening (17) of radial position on the pump dise (5) corresponding to cylinder number and operation range angle, turbo tooth (10) is housed on the cylindrical of pump dise (5), and turbo tooth (10) is meshed with worm screw (12) on being installed in housing (2), the both sides that are positioned at each plunger tube (16) on pump dise (5) cylindrical are shaped on oil guide slot (18), on pump dise (5) cylindrical O-ring seal (13) is housed, make pump dise (5) when housing (2) rotates, keep sealing, the both sides of pump dise (5) are shaped on annular oil guide slot (19) respectively, and the annular oil guide slot (19) of both sides is by oil guiding hole (20) UNICOM, plunger tube filler opening (17) is positioned on the annular oil guide slot (19), the same side of plunger tube (16) on the pump dise (5) all is shaped on guiding groove (21), plunger (6) is arranged in plunger tube (16), one end of location and return pin (7) inserts in the plunger (6), and can with relative the trackslipping of plunger (6), the other end is positioned at guiding groove (21) and backhaul dish (11), backhaul dish (11) is installed on the camshaft (1), and it is corresponding similar that its negative camber shape and the outer profile curve shape of cam (15) are pressed corner; Oil Guide dish (14) is positioned at an end of housing (2), is shaped on annular oil guide slot (22) on the Oil Guide dish (14), and annular oil guide slot (22) is by annular oil guide slot (19) UNICOM of oil guiding hole (23) with pump dise (5) one sides; Be shaped on oil outlet (24) on the housing (2), and oil outlet (24) and plunger tube (16) outer end UNICOM; Bonnet (4) is provided with low pressure filler opening (25), and low pressure filler opening (25) and annular oil guide slot (22) UNICOM.
2, engine liquid according to claim 1 is press-fitted device of air, it is characterized in that: the inner of plunger (6) is provided with rotary roller (8).
3, engine liquid according to claim 1 is press-fitted device of air, it is characterized in that: be shaped on a plurality of cams (15) on the camshaft (1), be provided with a plurality of pump dise assemblies side by side, the corresponding pump dise assembly of each cam (15), and a plurality of pump dises (5) on the pump dise assembly can trackslip mutually, and the annular oil guide slot (19) on it is UNICOM mutually.
4, engine liquid according to claim 3 is press-fitted device of air, it is characterized in that: housing (2) is provided with position limit pin (26), limiting stopper (27) and stop screw (28), and position limit pin (26), limiting stopper (27) and stop screw (28) are positioned between adjacent two pump dises (5).
5, engine liquid according to claim 1 is press-fitted device of air, it is characterized in that: the valve fluid pressure drive device is made of plane rotation valve (31), plane valve seat (32), valve guide bushing (33), packing ring (34), dish-shaped reed (35), jump ring (36), platen (37), steel ball (38), locating cover (39), revolution dial (40), roll sleeve (41), group plate (42), plunger body (43), plunger (44) and stroke limit drawing device (45); Plane rotation valve (31) is inserted into cylinder head (46) by valve guide bushing (33) and goes up rotatable, its lower end surface is shaped on vent (47), plane valve seat (32) is fixed on the cylinder head (46), be shaped on vent (48) on it, locating cover (39) is fixed on the cylinder head (46), platen (37) is fixed on the middle part of plane rotation valve (31) and is positioned at locating cover (39), the inboard of locating cover (39) upper-end surface is shaped on ball-and-socket (49), be shaped on two groups of four ball-and-sockets (50) on the upper-end surface of platen (37) corresponding to valve standard-sized sheet and complete shut-down, steel ball (38) major part is arranged in ball-and-socket (49), small part is arranged in ball-and-socket (50), dish reed (35) is positioned between two packing rings (34) and the middle part that is sleeved on plane rotation valve (31) is positioned at locating cover (39), and be close on the lower end surface of plane valve seat (32) by the spacing plane rotation valve (31) that makes of jump ring (36) precompressed, revolution dial (40) is fixed on the top of plane rotation valve (31), roll sleeve (41) is arranged on the upper-end surface of revolution dial (40), an end and the roll sleeve (41) of dialling plate (42) are hinged, the other end is fixed on the plunger (44), plunger (44) is positioned at plunger body (43), plunger body (43) is fixed on the cylinder head (46), its lower end is shaped on oil input channel (51), is provided with stroke limit drawing device (45).
6, engine liquid according to claim 5 is press-fitted device of air, it is characterized in that: run distance caging device (45) is by stroke limit arm-tie (52), eccentric shaft (53), eccentric shaft positioning block (54), dish reed (55), adjust pad (56), micrometer adjusting screw (57) and positioning runner (58) constitute, one end of stroke limit arm-tie (52) is hinged on the plunger (44), the other end is hinged on the eccentric shaft (53), eccentric shaft (53) is arranged in eccentric shaft positioning block (54), adjusting pad (56) is arranged between eccentric shaft positioning block (54) interior edge face and the positioning runner (58), dish reed (55) is arranged in the eccentric shaft positioning block (54), between exterior edge face and the positioning runner (58), micrometer adjusting screw (57) is provided with on the positioning runner (58), withstands on the exterior edge face of eccentric shaft positioning block (54).
7, engine liquid according to claim 1 is press-fitted device of air, it is characterized in that: the valve fluid pressure drive device is made of spring valve (61), sleeve pipe (62), plunger body (63), plunger (64) and damping device (65); Plunger body (63) by sleeve pipe (62) be supported and fixed on cylinder head (66) go up and be positioned at spring valve (61) directly over, plunger (64) is arranged in the plunger tube (67) on the plunger body (63), its lower end withstands on the upper end of spring valve (61), damping device (65) is equipped with in the upper end, be shaped on filler opening (68) and oil outlet (69) on the plunger body (63), and filler opening (68) and oil outlet (69) communicate with plunger tube (67).
8, engine liquid according to claim 7 is press-fitted device of air, it is characterized in that: damping device (65) is an elastic buffer head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262354 CN2581698Y (en) | 2002-10-12 | 2002-10-12 | Hydraulic distributing device for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262354 CN2581698Y (en) | 2002-10-12 | 2002-10-12 | Hydraulic distributing device for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581698Y true CN2581698Y (en) | 2003-10-22 |
Family
ID=33728929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02262354 Expired - Fee Related CN2581698Y (en) | 2002-10-12 | 2002-10-12 | Hydraulic distributing device for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581698Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010017759A1 (en) * | 2008-08-13 | 2010-02-18 | 奇瑞汽车股份有限公司 | A hydraulic camshaft and a hydraulic controlling system thereof |
| CN102678220A (en) * | 2011-03-08 | 2012-09-19 | 朱譞晟 | Axial-driven single-axis double-control arc chute-type fully variable valve timing and lifting mechanism |
-
2002
- 2002-10-12 CN CN 02262354 patent/CN2581698Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010017759A1 (en) * | 2008-08-13 | 2010-02-18 | 奇瑞汽车股份有限公司 | A hydraulic camshaft and a hydraulic controlling system thereof |
| CN102678220A (en) * | 2011-03-08 | 2012-09-19 | 朱譞晟 | Axial-driven single-axis double-control arc chute-type fully variable valve timing and lifting mechanism |
| CN102678220B (en) * | 2011-03-08 | 2016-04-20 | 朱譞晟 | Axially drive the single shaft dual control full Variable Valve Time of arc chute formula and lift mechanisms |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5558049A (en) | Variable orbital aperture valve system for fluid processing machines | |
| EP1851419B1 (en) | Device for combustion engine | |
| US20130074790A1 (en) | Electrohydraulic valve actuator with reciprocating cam | |
| KR101029350B1 (en) | Variable flow reducing valve and gradual control valve distribution system for a compressed air injection engine operating on mono or multi energy and other engines or compressors | |
| CN100410513C (en) | Valve timing continuously variable internal combustion engine valve system | |
| CN101377138B (en) | Sliding valve type two-mode engine intake valve delaying shutdown system | |
| CN111173585B (en) | Full-variable liquid valve system | |
| CN101446214A (en) | Continuously adjustable mechanical hydraulic valve lift device | |
| CN1289796C (en) | Hydraulic distributing mechanism for engine rotary valve | |
| CN100523461C (en) | Load responding engine | |
| CN112096477B (en) | Mechanism for controlling opening and closing of valve, variable valve apparatus and method | |
| CN2581698Y (en) | Hydraulic distributing device for engine | |
| CN101509404B (en) | Variable valve system | |
| AU2003269033B2 (en) | Hydraulic valve actuator for reciprocating engine | |
| CN1189878A (en) | Variable displacement metering pump | |
| CN211343052U (en) | Fully variable electro-hydraulic valve system | |
| CN111075531B (en) | Full-variable liquid valve system | |
| CN108798818B (en) | Valve mechanism and engine system | |
| CN107762587B (en) | Actuating mechanism, variable valve lift device, engine and automobile | |
| CN100344863C (en) | Valve throttling engine speed reducer | |
| WO2021136225A1 (en) | Fully variable electro-hydraulic valve system having buffering function | |
| RU2406831C2 (en) | Device for control over drive of valve of internal combustion engine | |
| CN100376773C (en) | Apparatus for an internal combustion engine | |
| US5911203A (en) | Modular rotary discoid valve assembly for engines and other applications | |
| CN202176410U (en) | Novel high-efficiency energy-saving internal-combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031022 Termination date: 20101012 |