CN109827778B - Engine differential angle adjustment test device with dividing disc - Google Patents
Engine differential angle adjustment test device with dividing disc Download PDFInfo
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- CN109827778B CN109827778B CN201910254681.7A CN201910254681A CN109827778B CN 109827778 B CN109827778 B CN 109827778B CN 201910254681 A CN201910254681 A CN 201910254681A CN 109827778 B CN109827778 B CN 109827778B
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- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000013508 migration Methods 0.000 abstract description 3
- 230000005012 migration Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model provides a take differential angle of engine of graduated disk to adjust test device, includes, the lead screw of horizontal migration, the output of lead screw is connected the one end of push rod through an annular cover for the drive push rod horizontal migration, the other end of push rod is connected a set of rotary driving mechanism that is used for converting horizontal driving force into the rotation force of two different directions through a tooth socket, right cam and left cam are connected respectively to the output of the rotation force of two different directions of rotary driving mechanism, rotary driving device is kept away from the one end of push rod is connected on the inner circle of the bearing that is located the bearing frame, still be provided with on the push rod and be used for adjusting and prescribe a limit to right cam and left cam and set for the corner adjustment mechanism of corner. The invention can realize the accurate adjustment of different cam shaft angles, and adjust the different angles of the two air inlet cams (left cam and right cam) in a certain range, thereby changing the lift difference of the air inlet valve to generate and adjust vortex and obtaining the characteristic parameters of the gas in the cylinder.
Description
Technical Field
The invention relates to an engine differential angle adjusting device. In particular to an engine differential angle adjustment test device with an index plate.
Background
For engines, both tumble and swirl flow exist in a more favorable organization for the combustion process. However, in the four-valve engine, since the double air inlet channel structure is symmetrically arranged and two cam molded lines driving the air inlet valves are almost identical, the two air inlet valves are opened to the same degree at the same moment, so that the air inlet speeds and the air inlet amounts of the two air inlet valves are the same at the same moment, the rotating air flows in the cross section direction of the cylinder body are mutually counteracted, the whole movement of the air in the cylinder is in a single longitudinal rolling flow mode, and vortex is hardly existed, so that the phenomenon of poor formation of mixed gas and poor combustion is an important factor. If a tangential air passage or a rotary air passage is adopted to obtain vortex flow, the structure of the cylinder cover is complicated, and the air flow resistance is increased. When one air inlet valve is opened, the other air inlet valve is closed, so that larger vortex flow (Wang Jian, liu Dexin, liu Shuliang and the like) can be generated, and the flow characteristic of the air inlet channel of the four-valve gasoline engine is researched by a steady flow test [ J ]. Inlet engine school newspaper, 2004,22 (2): 182-186); the internal combustion engine adopts a sliding type variable air inlet structure, and vortex and control vortex can be generated by arranging valves in an air inlet manifold respectively (Liu Ruilin, liu Zengyong, high intake, etc. the experimental research on the characteristics of the vortex in the cylinder generated by a four-valve gasoline engine variable inclined shaft vortex system [ J ] internal combustion engine engineering, 2006,27 (3): 29-32; li Ming, liu Dexin, yang Yanxiang. The influence of a gasoline engine variable vortex air inlet pipe on the characteristics of the vortex in the cylinder [ J ] combustion science and technology, 2009, 4:146-150), but the experimental research is equivalent to reducing or cutting off part of an air inlet channel, and the air inflow is influenced. The variable valve lift technique also produces swirl, control swirl (Wang Tianyou, liu Daming, zhang Xueen. Research of gas flow characteristics in gasoline engines cylinders under variable valve lift [ J ] internal combustion engine journal, 2008, 26 (5): 420-428; zhao Changpu, zhong Bo, zhu Yunyao, etc.. Influence of variable valve lift on flow characteristics in direct injection gasoline cylinders in turbocharged cylinders [ J ]. University of Tianjin journal (edition of natural science and engineering technology), 2013, 46 (8): 737-742). However, in these structures, whether the lift of the two intake cams is reduced at the same time or one of the intake cams is reduced, obtaining a stronger swirl is equivalent to partially closing both or one of the valves, which results in a flow capacity that is less than the full opening of the double intake valve (or intake port), at the expense of intake flow.
In order to solve the problems, a device for acquiring vortex flow (Zhang Shijiang, liu Ruilin, liu Wuquan, and the like) of the variable intake valve differential lift of the engine is designed, the device for acquiring the variable intake valve differential lift of the engine is disclosed in the patent ZL201310029510.7, 2015.2 and authorized, a corresponding device for adjusting the variable intake valve differential lift differential angle of the engine (Liu Ruilin, zhang Shijiang, liu Wuquan, and the like) is disclosed, and the device for adjusting the variable intake valve differential lift differential angle of the engine is disclosed in the patent ZL201310265094.0, 2016.01 and authorized.
Disclosure of Invention
The invention aims to solve the technical problem of providing an engine differential angle adjustment test device with an index plate, which can simulate an actual intake cam differential angle adjustment device.
The technical scheme adopted by the invention is as follows: the utility model provides a take different angle adjustment test device of engine of graduated disk, is the device that is used for reaching the adjustment engine intake valve aperture through adjusting engine left cam and right cam rotation angle, includes, the horizontally movable's lead screw, the output of lead screw passes through the one end of annular cover connection push rod for driving the push rod horizontal migration, the other end of push rod passes through a tooth socket and connects a set of rotary driving mechanism that is used for converting horizontal driving force into the rotation force of two different directions, right cam and left cam are connected respectively to the output of the rotation force of two different directions of rotary driving mechanism, rotary driving device is kept away from the one end of push rod is connected on the inner circle of the bearing that is located the bearing frame, still be provided with the corner adjustment mechanism that is used for adjusting and prescribes a limit to right cam and left cam setting angle on the push rod.
The screw rod is connected with the nut through threads, and a supporting frame is integrally formed at the lower part of the nut.
The output end of the screw rod is integrally connected with a push plate, the inner annular wall of the annular sleeve is of a stepped structure with different diameters, the output end of the screw rod can be rotationally embedded into the inner annular wall part with the relatively small diameter of the annular sleeve, the push plate formed at the output end of the screw rod can be rotationally embedded into the inner annular wall part with the relatively large diameter of the annular sleeve, the push rod is positioned at one end of the annular sleeve, and the push rod flange is fixedly connected with the annular sleeve through an annular sleeve bolt, so that the horizontal movement of the push rod driven by the screw rod is realized.
The rotary driving mechanism comprises an inner tooth sleeve and an outer tooth sleeve which are fixedly connected with the tooth sleeve disc of the tooth sleeve seat through tooth sleeve screws, an inner gear is connected with the outer side of the inner tooth sleeve in a meshed mode, a root tooth part of an inner cam shaft is connected with the inner side of the inner tooth sleeve in a meshed mode, a left cam is sleeved on the cam shaft of the inner cam shaft at the side of the root tooth part, the left cam is fixedly connected with a connecting sleeve at the center of a connecting flange through a locating pin, a flange disc of the connecting flange is fixedly connected with the inner gear through an inner gear screw, a right cam is arranged on the cam shaft of the inner cam shaft at a set distance from the left cam, the right cam is fixedly connected with the cam shaft through a locating key, and the end portion of the cam shaft is connected with an inner ring of a bearing in a bearing seat.
The left cam and the cam shaft of the inner cam shaft are movably connected, two limiting arc holes are formed in the shaft sleeve of the left cam in a radial symmetry mode, limiting pins used for preventing the left cam from moving along the axial direction of the cam shaft are arranged on the cam shaft corresponding to the two limiting arc holes, and two ends of each limiting pin correspondingly penetrate through the two limiting arc holes.
And a sleeve used for limiting the axial movement of the right cam is arranged between the right cam and the bearing on the cam shaft.
The angle adjusting mechanism comprises an index plate sleeved on the push rod and an index plate seat sleeved on a shaft sleeve of the index plate, wherein a guide key groove is formed in the inner periphery of the index plate, a guide key is formed on the push rod corresponding to the guide key groove, and the push rod is fixedly connected with the index plate by embedding the guide key into the guide key groove; the indexing disc comprises a disc body, wherein a plurality of indexing holes for determining and adjusting the right cam and the left cam angles are formed in the disc body of the indexing disc at equal intervals along the circumferential direction, a through hole is formed in the indexing disc seat, the through hole can be coaxial with any one of the indexing holes, a spring seat is inserted into the through hole, a positioning pin shaft sleeved with a reset spring is arranged in the spring seat, one end of the positioning pin shaft is of a cone structure capable of being inserted into the indexing hole, and a hand wheel for conveniently inserting and pulling the positioning pin shaft is integrally formed at the other end of the positioning pin shaft.
And the included angle between the hole centers of two adjacent indexing holes on the indexing disc and the connecting line of the disc centers of the indexing disc is 10 degrees.
The periphery of the index plate is provided with a handle for manually rotating the index plate.
The baffle plate used for limiting the index plate is fixedly arranged on the index plate seat through a baffle plate bolt.
The engine differential angle adjustment test device with the dividing disc can simulate an actual intake cam differential angle adjustment device, and an in-cylinder gas flow characteristic experiment of an engine is performed on an airway steady flow simulation test bed. The experimental device determines the rotation angle of the cam shaft through the dividing disc, so that vortex and tumble conditions under different rotation angles of the cam shaft are simulated on the airway steady flow simulation test bed. The cam shaft rotation angle is determined through the dividing disc, the operation is convenient, and the precision is improved. The right end of the device is provided with the bearing and the bearing seat, so that the device is more flexible, stable and reliable.
The invention can realize the accurate adjustment of different cam shaft angles, and adjust the different angles of the two air inlet cams (left cam and right cam) in a certain range, thereby changing the lift difference of the air inlet valve to generate and adjust vortex and obtaining the characteristic parameters of the gas in the cylinder.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an engine differential angle adjustment test device with an index plate according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the indexing disk of the present invention.
In the figure
1: And (2) a screw rod: nut
3: Annular sleeve 4: guide key
5: Positioning pin 6: handle
7: Spring seat 8: spring
9: Hand wheel 10: tooth socket
10.1: Sleeve 10.2: toothed sleeve disk
11: Tooth cover screw 12: internal gear
13: Internal gear screw 14: positioning pin
15: Stop pin 16: inner cam shaft
16.1: Root tooth 16.2: cam shaft
17: Positioning key 18: sleeve barrel
19: Bearing 20: bearing pedestal
21: Right cam 22: left cam
23: Limiting arc hole 24: connecting flange
24.1: Connecting sleeve 24.2: flange plate
25: Inner and outer gear sleeve 26: connecting pin
27: Push rod 28: dividing plate seat
29: Dividing disk 29.1: shaft sleeve
29.2: Tray 29.3: guide key groove
30: Baffle 31: baffle bolt
32: Annular sleeve bolt 33: push plate
34: Indexing hole 35: push rod flange
Detailed Description
The following describes an engine differential angle adjustment test device with an index plate according to the present invention in detail with reference to the examples and the accompanying drawings.
The invention provides an engine differential angle adjustment test device with an index plate, which provides an engine differential angle adjustment test device with an index plate for a variable valve differential lift method. The experimental device determines the rotation angle of the cam shaft through the dividing disc, so that vortex and tumble conditions under different rotation angles of the cam shaft are simulated on the airway steady flow simulation test bed.
As shown in fig. 1, the engine differential angle adjustment test device with the index plate is used for adjusting the opening degree of an engine intake valve by adjusting the rotation angles of a left cam and a right cam of an engine, and comprises a horizontally moving screw rod 1, wherein the screw rod 1 is connected with a nut 2 through threads, and a supporting frame is integrally formed at the lower part of the nut 2. The output end of the screw rod 1 is connected with one end of a push rod 27 through an annular sleeve 3 and used for driving the push rod 27 to horizontally move, the other end of the push rod 27 is connected with a group of rotary driving mechanisms for converting horizontal driving force into rotary force in two different directions through a tooth sleeve seat 10, the output of the rotary force in two different directions of the rotary driving mechanisms is respectively connected with a right cam 21 and a left cam 22, one end of the rotary driving device, which is far away from the push rod 27, is connected with an inner ring of a bearing 19 positioned in a bearing seat 20, and a corner adjusting mechanism for adjusting and limiting a set corner of the right cam 21 and the left cam 22 is further arranged on the push rod 27.
The output end of the screw 1 is integrally connected with a push plate 33, the inner annular wall of the annular sleeve 3 is of a stepped structure with different diameters, the output end of the screw 1 can be rotationally embedded into the inner annular wall part with the relatively small diameter of the annular sleeve 3, the push plate 33 formed at the output end of the screw 1 can be rotationally embedded into the inner annular wall part with the relatively large diameter of the annular sleeve 3, the push rod 27 is positioned at one end of the annular sleeve 3 and is integrally provided with a push rod flange 35, and the push rod flange 35 is fixedly connected with the annular sleeve 3 through an annular sleeve bolt 32, so that the screw 1 drives the push rod 27 to horizontally move.
The tooth socket 10 comprises a sleeve 10.1 which penetrates through the sleeve and a tooth socket disk 10.2 which protrudes outwards radially along a port on one side of the sleeve, the sleeve 10.1 is fixedly connected with the push rod 27 through a connecting pin 26, the rotary driving mechanism comprises an inner tooth socket 25 which is fixedly connected with the tooth socket disk 10.2 of the tooth socket 10 through a tooth socket screw 11, the outer side of the inner tooth socket 25 is meshed with an inner gear 12, the inner side of the inner tooth socket 25 is meshed with a root tooth 16.1 of an inner cam shaft 16, a left cam 22 is sleeved on the cam shaft 16.2 of the inner cam shaft 16 at the side of the root tooth 16.1, the left cam 22 is fixedly connected with a connecting sleeve 24.1 in the center of a connecting flange 24 through a locating pin 14, the flange 24.2 of the connecting flange 24 is fixedly connected with the inner gear 12 through an inner gear screw 13, a right cam 21 is arranged on the cam shaft 16.2 of the inner cam shaft 16 at a set distance from the left cam 22, and the right cam 21 is fixedly connected with the end of the inner cam shaft 16.2 through a locating key 17 at the end of the inner bearing seat 20.2.
As shown in fig. 2, the left cam 22 is movably connected with the cam shaft 16.2 of the inner cam shaft 16, two limiting arc holes 23 are formed on the shaft sleeve of the left cam 22 in a radially symmetrical manner, a limiting pin 15 for preventing the left cam 22 from moving axially along the cam shaft 16.2 is arranged on the cam shaft 16.2 corresponding to the two limiting arc holes 23, and two ends of the limiting pin 15 correspondingly penetrate through the two limiting arc holes 23.
The camshaft 16.2 is provided with a sleeve 18 for restricting the axial movement of the right cam 21 between the right cam 21 and the bearing 19.
As shown in fig. 2 and 3, the rotation angle adjusting mechanism comprises an index plate 29 sleeved on the push rod 27, an index plate seat 28 sleeved on a shaft sleeve 29.1 of the index plate 29, and a baffle 30 for limiting the index plate 29 is fixedly arranged on the index plate seat 28 through a baffle bolt 31. Wherein, the inner circumference of the index plate 29 is formed with a guide key groove 29.3, the push rod 27 is formed with a guide key 4 corresponding to the guide key groove 29.3, and the push rod 27 is fixedly connected with the index plate 29 by embedding the guide key 4 into the guide key groove 29.3; the indexing disc comprises a disc body 29.2 of an indexing disc 29, a plurality of indexing holes 34 used for determining and adjusting the rotation angles of a right cam 21 and a left cam 22 are formed in the disc body 29.2 at equal intervals along the circumferential direction, a through hole is formed in the indexing disc seat 28 coaxially with any one of the indexing holes 34, a spring seat 7 is inserted into the through hole, a positioning pin 5 sleeved with a return spring 8 is arranged in the spring seat 7, one end of the positioning pin 5 is of a cone structure capable of being inserted into the indexing hole 34, and a hand wheel 9 used for conveniently inserting and pulling the positioning pin 5 is integrally formed at the other end of the positioning pin 5. The periphery of the index plate 29 is provided with a handle 6 for manually rotating the index plate 29.
As shown in fig. 3, the included angle a between the centers of two adjacent indexing holes 34 on the indexing disk 29 and the line connecting the centers of the indexing disk 29 is 10 °.
The invention relates to an engine differential angle adjustment test device with an index plate, which comprises the following working principles:
referring to fig. 1, the left end of the screw 1 is rotated clockwise as seen from left to right, and since the nut 2 is fixed, the screw 1 is moved rightward while being rotated, and the push plate 33 at the right end of the screw 1 is rotated in the cavity formed by the annular sleeve 3 and the left end of the push rod 27 and is also moved rightward, so that the push rod 27 is moved rightward. The push rod 27, the tooth sleeve seat 10 and the inner tooth sleeve 25 are connected into a whole, so that the inner tooth sleeve 25 moves rightwards, the inner gear 12 rotates clockwise, the inner cam shaft 16 rotates anticlockwise integrally, the left cam 22 rotates clockwise, the right cam 21 rotates anticlockwise, and the left cam 22 and the right cam 21 simultaneously rotate reversely to form an included angle-different angle. The size of the different angles can be adjusted by adjusting the distance the screw 1 moves.
The right handle wheel 9 compresses the spring 8, the positioning pin shaft 5 is pulled out, the index plate 29 is rotated by rotating the handle 6, the push rod 27, the tooth sleeve seat 10, the inner tooth sleeve 25, the inner gear 12, the connecting flange 24, the inner cam shaft 16, the left cam 22 and the right cam 21 are driven by the guide key 4 to simultaneously rotate in the same direction, the whole structure is equivalent to that of one cam shaft, the index plate 29 rotates by 10 degrees, the hand wheel is put down, the spring returns, and the positioning pin shaft 5 is inserted into the index hole 34 on the index plate to realize positioning. In this way, different camshaft angles can be adjusted.
Claims (5)
1. The device is used for adjusting the opening degree of an engine intake valve by adjusting the rotation angles of a left cam and a right cam of the engine, and is characterized by comprising a horizontally moving screw rod (1), wherein the output end of the screw rod (1) is connected with one end of a push rod (27) through an annular sleeve (3) and is used for driving the push rod (27) to horizontally move, the other end of the push rod (27) is connected with a group of rotation driving mechanisms for converting horizontal driving force into rotation forces in two different directions through a tooth sleeve seat (10), the output of the rotation driving forces in two different directions of the rotation driving mechanisms is respectively connected with a right cam (21) and a left cam (22), one end of the rotation driving mechanism, which is far away from the push rod (27), is connected with an inner ring of a bearing (19) positioned in a bearing seat (20), and the push rod (27) is also provided with a rotation angle adjusting mechanism for adjusting and limiting the set rotation angles of the right cam (21) and the left cam (22);
The output end of the screw rod (1) is integrally connected with a push plate (33), the inner annular wall of the annular sleeve (3) is of a stepped structure with different diameters, the output end of the screw rod (1) can be rotationally embedded into the inner annular wall part with the relatively small diameter of the annular sleeve (3), the push plate (33) formed at the output end of the screw rod (1) can be rotationally embedded into the inner annular wall part with the relatively large diameter of the annular sleeve (3), the push rod (27) is positioned at one end of the annular sleeve (3) and is integrally provided with a push rod flange (35), and the push rod flange (35) and the annular sleeve (3) are fixedly connected through an annular sleeve bolt (32), so that the screw rod (1) drives the push rod (27) to horizontally move;
The tooth socket (10) comprises a sleeve (10.1) which penetrates through the sleeve back and forth and a tooth socket disc (10.2) which protrudes outwards radially along a port on one side of the sleeve, the sleeve (10.1) is fixedly connected with the push rod (27) through a connecting pin (26), the rotary driving mechanism comprises an inner tooth socket and an outer tooth socket (25) which are fixedly connected with the tooth socket (10.2) through tooth socket screws (11), the outer sides of the inner tooth socket and the outer tooth socket (25) are meshed with an inner gear (12), the inner sides of the inner tooth socket and the outer tooth socket (25) are meshed with a root tooth part (16.1) which is connected with an inner cam shaft (16), a left cam (22) is sleeved on the cam shaft (16.2) of the inner cam shaft (16) on the side of the root tooth part (16.1), the left cam (22) is fixedly connected with a connecting sleeve (24.1) in the center of a connecting flange (24) through a positioning pin (14), the inner gear (24.2) of the connecting flange (24) is fixedly connected with the inner cam shaft (16) through a positioning pin (21) through a positioning pin (13), and the distance between the inner cam (2) and the inner cam (16) is set up on the cam shaft (16) and the cam shaft (16) is fixedly separated from the cam shaft (2), the end of the camshaft (16.2) is connected to the inner ring of a bearing (19) located in a bearing seat (20);
The left cam (22) is movably connected with a cam shaft (16.2) of the inner cam shaft (16), two limiting arc holes (23) are formed in the shaft sleeve of the left cam (22) in a radial symmetrical mode, limiting pins (15) used for preventing the left cam (22) from moving axially along the cam shaft (16.2) are arranged on the cam shaft (16.2) corresponding to the two limiting arc holes (23), and two ends of each limiting pin (15) correspondingly penetrate through the two limiting arc holes (23); a sleeve (18) for limiting the axial movement of the right cam (21) is arranged between the right cam (21) and the bearing (19) on the cam shaft (16.2);
The angle adjusting mechanism comprises an index plate (29) sleeved on the push rod (27), and an index plate seat (28) sleeved on a shaft sleeve (29.1) of the index plate (29), wherein a guide key groove (29.3) is formed in the inner periphery of the index plate (29), a guide key (4) is formed on the push rod (27) corresponding to the guide key groove (29.3), and the push rod (27) is fixedly connected with the index plate (29) by embedding the guide key (4) into the guide key groove (29.3); the indexing disc comprises a disc body (29.2) of an indexing disc (29), wherein a plurality of indexing holes (34) used for determining and adjusting the rotation angles of a right cam (21) and a left cam (22) are formed in the disc body (29.2) at equal intervals along the circumferential direction, a through hole is formed in a position on an indexing disc seat (28) and can be coaxial with any one of the indexing holes (34), a spring seat (7) is inserted into the through hole, a positioning pin shaft (5) sleeved with a return spring (8) is arranged in the spring seat (7), one end of the positioning pin shaft (5) is of a cone structure capable of being inserted into the indexing hole (34), and a hand wheel (9) used for conveniently inserting and pulling the positioning pin shaft (5) is integrally formed at the other end of the positioning pin shaft.
2. The device for testing the differential angle adjustment of the engine with the index plate according to claim 1, wherein the screw rod (1) is connected with the nut (2) through threads, and a supporting frame is integrally formed at the lower part of the nut (2).
3. The device according to claim 1, characterized in that the angle between the centers of two adjacent indexing holes (34) on the indexing disc (29) and the line connecting the centers of the indexing disc (29) is 10 °.
4. The engine differential angle adjustment test device with the index plate according to claim 1, wherein a handle (6) for manually rotating the index plate (29) is arranged on the periphery of the index plate (29).
5. The device for testing the differential angle adjustment of the engine with the index plate according to claim 1, wherein a baffle (30) for limiting the index plate (29) is fixedly arranged on the index plate seat (28) through a baffle bolt (31).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910254681.7A CN109827778B (en) | 2019-03-31 | 2019-03-31 | Engine differential angle adjustment test device with dividing disc |
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| CN201910254681.7A CN109827778B (en) | 2019-03-31 | 2019-03-31 | Engine differential angle adjustment test device with dividing disc |
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| CN209656285U (en) * | 2019-03-31 | 2019-11-19 | 唐山学院 | A kind of different angle of the engine with index dial adjusts experimental rig |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07286507A (en) * | 1994-04-19 | 1995-10-31 | Toyota Motor Corp | Cam angle adjusting device |
| KR100199138B1 (en) * | 1996-12-14 | 1999-06-15 | 정몽규 | A cam shaft angle adjustable device for measuring opening time of valve of a car |
| JP3945234B2 (en) * | 2001-12-04 | 2007-07-18 | 日産自動車株式会社 | Inspection device for variable valve timing device for internal combustion engine |
| KR200385973Y1 (en) * | 2005-02-22 | 2005-06-07 | 홍길철 | Multiple or 3-dimensional picture display apparatus using lens sheet |
| KR20060133272A (en) * | 2005-06-20 | 2006-12-26 | 정택 | Engin of weight bar regulator operation |
| JP5582195B2 (en) * | 2010-11-08 | 2014-09-03 | トヨタ自動車株式会社 | Variable valve gear |
| JP5835070B2 (en) * | 2012-04-05 | 2015-12-24 | トヨタ自動車株式会社 | Variable valve gear |
| CN202710313U (en) * | 2012-07-12 | 2013-01-30 | 奇瑞汽车股份有限公司 | Air valve unlatching device for airway current stabilization test |
| CN103061846B (en) * | 2013-01-25 | 2015-02-25 | 唐山学院 | Variable air intake valve different lift device of motor |
| CN103323254B (en) * | 2013-06-28 | 2016-01-20 | 中国人民解放军军事交通学院 | The different lift of engine variable inlet valve different angle regulation experiment device |
| CN203420755U (en) * | 2013-06-28 | 2014-02-05 | 中国人民解放军军事交通学院 | Adjusting testing device of dissimilar angles and dissimilar lift ranges of variable inlet valve of engine |
| CN206073936U (en) * | 2016-09-30 | 2017-04-05 | 陕西科技大学 | A kind of general cambered surface cam mechanism accuracy detection experimental provision |
| CN106640250A (en) * | 2016-12-21 | 2017-05-10 | 朱譞晟 | Full variable valve timing and lifting device with nested and coaxial cam shaft and control shafts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209656285U (en) * | 2019-03-31 | 2019-11-19 | 唐山学院 | A kind of different angle of the engine with index dial adjusts experimental rig |
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