CN104948251A - Engine valve hydraulic driving and motion allocating device - Google Patents
Engine valve hydraulic driving and motion allocating device Download PDFInfo
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- CN104948251A CN104948251A CN201410123441.0A CN201410123441A CN104948251A CN 104948251 A CN104948251 A CN 104948251A CN 201410123441 A CN201410123441 A CN 201410123441A CN 104948251 A CN104948251 A CN 104948251A
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Abstract
The invention discloses an engine valve hydraulic driving and motion allocating device. The engine valve hydraulic driving and motion allocating device comprises a supporting and allocating system and a cam shaft system. An air inlet cam (8) and an exhaust cam (9) are installed on a cam shaft (7) to form the cam shaft system installed in the supporting and allocating system. Inlet valve oil cylinder installing hole sets (10) evenly distributed are arranged at the positions, corresponding to the air inlet cam (8), of the supporting and allocating system along the circumference. Exhaust valve oil cylinder installing hole sets (11) evenly distributed are arranged at the positions, corresponding to the exhaust cam (9), of the supporting and allocating system along the circumference. The engine valve hydraulic driving and motion allocating device is simple and compact in structure and high in integrity and can carry out structure integration and centralized control with a hydraulically-driven engine variable air distribution system, the engine cylinder cover structure can be simplified, and the manufacturing cost is reduced.
Description
Technical field
The invention belongs to field of electromechanical technology, relate in particular to a kind of engine hydraulic valve and drive and motion assignment device.
Background technique
During engine operation, the intake valve of each cylinder and exhaust valve need open successively in a certain order, close, to ensure that the cylinder of motor normally works in order.At present, the motion of engine valve mainly adopts the mode of dispersion driving, now conventional form covers employing two camshafts at engine cylinder, wherein one is admission cam shaft, another root is exhaust cam shaft, every root camshaft needs the cam arranging same number according to valve quantity, and each cam is distributed in corresponding operating angle according to the requirement of cylinder job order again.The arrangement complex structure that this dispersion drives, is not easy to carry out structure assembly and centralized control with hydraulically powered engine variable gas distribution system.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming and the one provided is simple and compact for structure, level of integration is high, be easy to carry out structure assembly and centralized control with hydraulically powered engine variable gas distribution system, can simplify engine cylinder cover structure, the engine hydraulic valve reducing manufacture cost drives and motion assignment device.
The object of the invention and solve its technical problem underlying and realize by the following technical solutions:
A kind of engine hydraulic valve of the present invention drives and motion assignment device, comprise support and distribution system and cam shaft system, wherein: intake cam and exhaust cam are arranged on camshaft and form cam shaft system, cam shaft system is installed in support and distribution system, and support and the corresponding intake cam position of distribution system are circumferentially provided with equally distributed intake valve oil cylinder mounting hole group; Support and the corresponding exhaust cam position of distribution system are circumferentially provided with equally distributed exhaust valve oil cylinder mounting hole group.
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: support and distribution system are made up of protecgulum, distributor body, bonnet, by screw, protecgulum, distributor body, bonnet are connected as a single entity, the center of protecgulum and bonnet is separately installed with bearing A, bearing B, and camshaft is arranged in bearing A, bearing B; Intake cam and exhaust cam are arranged on camshaft; Circumferentially equally distributed intake valve oil cylinder mounting hole group is provided with between the distributor body of corresponding intake cam position and protecgulum; Circumferentially equally distributed exhaust valve oil cylinder mounting hole group is provided with between the distributor body of corresponding exhaust cam position and bonnet.
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: intake cam and exhaust cam make integrated camshaft with axle, or is assembled into one after manufacturing respectively.
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: each intake valve oil cylinder in intake valve oil cylinder group is arranged in each mounting hole in support and distribution system intake valve oil cylinder mounting hole group respectively, the intake valve Cylinder Plunger of each intake valve oil cylinder keeps contacting with intake cam by the intake valve oil cylinder spring of bottom; Each exhaust valve oil cylinder in exhaust valve oil cylinder group is arranged in each mounting hole in support and distribution system exhaust valve oil cylinder mounting hole group respectively, and the exhaust valve Cylinder Plunger of each exhaust valve oil cylinder keeps contacting with exhaust cam by the exhaust valve oil cylinder spring of bottom.
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: the number of the output oil hole of bonnet end face, equal with the sum of the exhaust valve oil cylinder in the intake valve oil cylinder of intake valve oil cylinder group and exhaust valve oil cylinder group, each output oil hole communicates with corresponding intake valve oil cylinder oilhole, exhaust valve oil cylinder oilhole respectively;
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: in intake valve oil cylinder group, in the number of intake valve oil cylinder, exhaust valve oil cylinder group, the number of exhaust valve oil cylinder is all equal with number of engine cylinders.
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: each intake valve oil cylinder in intake valve oil cylinder group is consistent with cylinder job order with each exhaust valve oil cylinder erection sequence in exhaust valve oil cylinder group, and be connected with driving the hydraulic pipe line of corresponding valve respectively by with the output oil hole that bonnet end face communicates; Output oil hole also can be arranged in the circumferencial direction of the circumferencial direction of bonnet, the end face of protecgulum or circumferencial direction and distributor body as required.
Above-mentioned engine hydraulic valve drives and motion assignment device, wherein: when contacting to the exhaust valve Cylinder Plunger of exhaust valve oil cylinder with exhaust cam lift starting point when contacting with intake cam lift starting point from the intake valve Cylinder Plunger of intake valve oil cylinder for the same cylinder of motor, the angle that camshaft turns over and cylinder are opened to exhaust valve from intake valve to open required cam angle consistent.
The present invention compared with the existing technology has obvious advantage and beneficial effect.From above technological scheme, the present invention adopts a camshaft, an intake cam, and an exhaust cam forms motion assignment device, and the driving of all valves shares this motion assignment device, and thus simple and compact for structure, level of integration is high; All output circuits are all at grade integrated or circumferentially same, are easy to carry out structure assembly and centralized control with hydraulically powered engine variable gas distribution system; Driving due to valve adopts hydraulic circuit to connect, and engine hydraulic valve drives and motion assignment device can be arranged in any rational position, makes engine cylinder cover design have larger flexibility, is convenient to simplify engine cylinder cover structure, reduces manufacture cost; The motor arranged for cylinder array only need increase/subtract the oil cylinder number in air inlet oil cylinder group and the oil cylinder number in exhaust oil cylinder group according to engine cylinder number, and is evenly arranged in the demand that intake cam, exhaust cam circumferentially can meet the engine valve actuations of the different cylinder numbers such as 2 cylinders, 3 cylinders, 4 cylinders, 6 cylinders respectively; The motor arranged for cylinder V-type only need increase by one group of intake cam and intake valve oil cylinder group and one group of exhaust cam and exhaust valve oil cylinder group more respectively on camshaft, increase/subtract the oil cylinder number in air inlet oil cylinder group and the oil cylinder number in exhaust oil cylinder group according to engine cylinder number simultaneously, and be evenly arranged in the demand that intake cam, exhaust cam circumferentially can meet the engine valve actuations of the different cylinder numbers such as 6 cylinders, 8 cylinders, 12 cylinders respectively, thus strong adaptability.
Accompanying drawing explanation
Fig. 1 is appearance schematic diagram of the present invention;
Fig. 2 is the reciprocal appearance schematic diagram of Fig. 1;
Fig. 3 is cam shaft system schematic diagram of the present invention;
Fig. 4 is cam shaft system of the present invention and air inlet oil cylinder group and is vented oil cylinder group mounting point schematic diagram;
Fig. 5 is intake valve oil cylinder schematic diagram of the present invention.
Fig. 6 is exhaust valve oil cylinder schematic diagram of the present invention.
Mark in figure:
1, protecgulum, 2, distributor body, 3, bonnet, 4, screw, 5, bearing A,
6, bearing B,7, camshaft, 8, intake cam, 9, exhaust cam, 10, intake valve oil cylinder mounting hole group; 11, exhaust valve oil cylinder mounting hole group; 12, intake valve oil cylinder group, 13, exhaust valve oil cylinder group, 14, intake valve oil cylinder, 15, intake valve Cylinder Plunger, 16, intake valve oil cylinder spring, 17, exhaust valve oil cylinder, 18, exhaust valve Cylinder Plunger, 19, exhaust valve oil cylinder spring, 20, output oil hole, 21, intake valve oil cylinder oilhole, 22, exhaust valve oil cylinder oilhole.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the engine hydraulic valve driving propose foundation the present invention and the embodiment of motion assignment device, structure, feature and effect thereof, be described in detail as follows.
As Figure 1-5, for four cylinder engine, a kind of engine hydraulic valve drives and motion assignment device, comprise support and distribution system and cam shaft system, support and distribution system are made up of protecgulum 1, distributor body 2, bonnet 3, protecgulum 1, distributor body 2, bonnet 3 are connected as a single entity by screw 4, wherein: the center of protecgulum 1 and bonnet 3 is separately installed with bearing A5, bearing B6, camshaft 7 is arranged in bearing A5, bearing B6; Intake cam 8 and exhaust cam 9 are arranged on camshaft 7; Circumferentially equally distributed intake valve oil cylinder mounting hole group 10 is provided with between the distributor body 2 of corresponding intake cam 8 position and protecgulum 1; Circumferentially equally distributed exhaust valve oil cylinder mounting hole group 11 is provided with between the distributor body 2 of corresponding exhaust cam 9 position and bonnet 2.
Intake cam 8 and exhaust cam 9 can make integrated camshaft 7 with axle, are assembled into one after also can manufacturing respectively.
Each intake valve oil cylinder 14 in intake valve oil cylinder group 12 is arranged in each mounting hole in support and distribution system intake valve oil cylinder mounting hole group 10 respectively, and the intake valve Cylinder Plunger 15 of each intake valve oil cylinder 14 keeps contacting with intake cam 8 by the intake valve oil cylinder spring 16 of bottom; Each exhaust valve oil cylinder 17 in exhaust valve oil cylinder group 13 is arranged in each mounting hole in support and distribution system exhaust valve oil cylinder mounting hole group 11 respectively, and the exhaust valve Cylinder Plunger 18 of each exhaust valve oil cylinder 17 keeps contacting with exhaust cam 9 by the exhaust valve oil cylinder spring 19 of bottom.
The number of the output oil hole 20 of bonnet 3 end face is 8, equal with the sum of the exhaust valve oil cylinder 17 in the intake valve oil cylinder 14 in intake valve oil cylinder group 12 and exhaust valve oil cylinder group 13, each output oil hole 20 communicates with corresponding intake valve oil cylinder oilhole 21, exhaust valve oil cylinder oilhole 22 respectively;
In intake valve oil cylinder group 12, intake valve oil cylinder 14 is 4, equal with number of engine cylinders, and in exhaust valve oil cylinder group 13, the number of exhaust valve oil cylinder 17 is 4, equal with number of engine cylinders.
Each intake valve oil cylinder 14 in intake valve oil cylinder group 12 is consistent with cylinder job order with each exhaust valve oil cylinder 17 erection sequence in exhaust valve oil cylinder group 13, and is connected with driving the hydraulic pipe line of corresponding valve respectively by with the output oil hole 20 that bonnet 3 end face communicates; Output oil hole 20 also can be arranged in the circumferencial direction of the circumferencial direction of bonnet 3, the end face of protecgulum 1 or circumferencial direction and distributor body 2 as required.
When contacting to the exhaust valve Cylinder Plunger 18 of exhaust valve oil cylinder 17 with exhaust cam 9 lift starting point when contacting with intake cam 8 lift starting point from the intake valve Cylinder Plunger 15 of intake valve oil cylinder 14 for the same cylinder of motor, the angle that camshaft 7 turns over and cylinder are opened to exhaust valve from intake valve to open required cam angle consistent.
Working procedure is as follows:
After the present invention has been connected with the hydraulic system of all valves of driving, by engine crankshaft drive cam shaft 7, just the exhaust valve Cylinder Plunger 18 of each exhaust valve oil cylinder 17 in the intake valve Cylinder Plunger 15 of each intake valve oil cylinder 14 in intake valve oil cylinder group 12 and exhaust valve oil cylinder group 13 can be driven according to order pump oil, the oil return successively of regulation by intake cam 8 and exhaust cam 9, the intake valve and the exhaust valve that realize per cylinder engine are opened successively according to the order of regulation, are closed, and ensure that each cylinder of motor normally works.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, anyly do not depart from technical solution of the present invention content, the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (8)
1. an engine hydraulic valve drives and motion assignment device, comprise support and distribution system and cam shaft system, it is characterized in that: intake cam (8) and exhaust cam (9) are arranged on camshaft (7) and form cam shaft system, cam shaft system is installed in support and distribution system, and support and corresponding intake cam (8) position of distribution system are circumferentially provided with equally distributed intake valve oil cylinder mounting hole group (10); Support and corresponding exhaust cam (9) position of distribution system are circumferentially provided with equally distributed exhaust valve oil cylinder mounting hole group (11).
2. engine hydraulic valve as claimed in claim 1 drives and motion assignment device, it is characterized in that: support and distribution system are made up of protecgulum (1), distributor body (2), bonnet (3), by screw (4), protecgulum (1), distributor body (2), bonnet (3) are connected as a single entity, the center of protecgulum (1) and bonnet (3) is separately installed with bearing A(5), bearing B(6), camshaft (7) is arranged on bearing A(5), bearing B(6) in; Intake cam (8) and exhaust cam (9) are arranged on camshaft (7); Circumferentially equally distributed intake valve oil cylinder mounting hole group (10) is provided with between the distributor body (2) of corresponding intake cam (8) position and protecgulum (1); Circumferentially equally distributed exhaust valve oil cylinder mounting hole group (11) is provided with between the distributor body (2) of corresponding exhaust cam (9) position and bonnet (3).
3. engine hydraulic valve as claimed in claim 1 or 2 drives and motion assignment device, it is characterized in that: intake cam (8) and exhaust cam (9) make integrated camshaft (7) with axle, or is assembled into one after manufacturing respectively.
4. engine hydraulic valve as claimed in claim 1 or 2 drives and motion assignment device, it is characterized in that: each intake valve oil cylinder (14) in intake valve oil cylinder group (12) is arranged in each mounting hole in support and distribution system intake valve oil cylinder mounting hole group (10) respectively, the intake valve Cylinder Plunger (15) of each intake valve oil cylinder (14) keeps contacting with intake cam 8 by the intake valve oil cylinder spring (16) of bottom; Each exhaust valve oil cylinder (17) in exhaust valve oil cylinder group (13) is arranged in each mounting hole in support and distribution system exhaust valve oil cylinder mounting hole group (11) respectively, and the exhaust valve Cylinder Plunger (18) of each exhaust valve oil cylinder (17) keeps contacting with exhaust cam (9) by the exhaust valve oil cylinder spring (19) of bottom.
5. engine hydraulic valve as claimed in claim 4 drives and motion assignment device, it is characterized in that: the number of the output oil hole (20) of bonnet (3) end face, equal with the sum of the exhaust valve oil cylinder (17) in the intake valve oil cylinder (14) of intake valve oil cylinder group (12) and exhaust valve oil cylinder group (13), each output oil hole (20) communicates with corresponding intake valve oil cylinder oilhole (21), exhaust valve oil cylinder oilhole (22) respectively.
6. engine hydraulic valve as claimed in claim 5 drives and motion assignment device, it is characterized in that: the number of the middle intake valve oil cylinder (14) of intake valve oil cylinder group (12), the number of the middle exhaust valve oil cylinder (17) of exhaust valve oil cylinder group (13) are all equal with number of engine cylinders.
7. engine hydraulic valve as claimed in claim 6 drives and motion assignment device, it is characterized in that: each intake valve oil cylinder (14) in intake valve oil cylinder group (12) is consistent with cylinder job order with each exhaust valve oil cylinder (17) erection sequence in exhaust valve oil cylinder group (13), and be connected with driving the hydraulic pipe line of corresponding valve respectively by with the output oil hole 20 that bonnet (3) end face communicates; Output oil hole (20) also can be arranged in the circumferencial direction of the circumferencial direction of bonnet (3), the end face of protecgulum (1) or circumferencial direction and distributor body (2) as required.
8. engine hydraulic valve as claimed in claim 7 drives and motion assignment device, it is characterized in that: when contacting to the exhaust valve Cylinder Plunger (18) of exhaust valve oil cylinder (17) with exhaust cam (9) lift starting point when contacting with intake cam (8) lift starting point from the intake valve Cylinder Plunger (15) of intake valve oil cylinder (14) for the same cylinder of motor, the angle that camshaft (7) turns over and cylinder are opened to exhaust valve from intake valve to open required cam angle consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123441.0A CN104948251A (en) | 2014-03-31 | 2014-03-31 | Engine valve hydraulic driving and motion allocating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123441.0A CN104948251A (en) | 2014-03-31 | 2014-03-31 | Engine valve hydraulic driving and motion allocating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948251A true CN104948251A (en) | 2015-09-30 |
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ID=54163251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410123441.0A Pending CN104948251A (en) | 2014-03-31 | 2014-03-31 | Engine valve hydraulic driving and motion allocating device |
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| CN (1) | CN104948251A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225540Y (en) * | 1995-06-23 | 1996-04-24 | 张宇坤 | Eccentric wheel (Cam) hydraulic valve mechanism |
| CN1272590A (en) * | 1999-05-03 | 2000-11-08 | 周仲南 | Hydraulic transmission air valve mechanism |
| CN1374441A (en) * | 2002-04-19 | 2002-10-16 | 华南理工大学 | Hydraulic driver of internal combustion engine |
| CN101936198A (en) * | 2010-08-06 | 2011-01-05 | 大连理工大学 | Cam oil-supply type electro-hydraulic valve driving system |
| CN103216323A (en) * | 2013-04-19 | 2013-07-24 | 燕山大学 | Stroke changing engine stroke switching mechanism |
-
2014
- 2014-03-31 CN CN201410123441.0A patent/CN104948251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2225540Y (en) * | 1995-06-23 | 1996-04-24 | 张宇坤 | Eccentric wheel (Cam) hydraulic valve mechanism |
| CN1272590A (en) * | 1999-05-03 | 2000-11-08 | 周仲南 | Hydraulic transmission air valve mechanism |
| CN1374441A (en) * | 2002-04-19 | 2002-10-16 | 华南理工大学 | Hydraulic driver of internal combustion engine |
| CN101936198A (en) * | 2010-08-06 | 2011-01-05 | 大连理工大学 | Cam oil-supply type electro-hydraulic valve driving system |
| CN103216323A (en) * | 2013-04-19 | 2013-07-24 | 燕山大学 | Stroke changing engine stroke switching mechanism |
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Application publication date: 20150930 |