CN105604708B - A kind of cylinder deactivation engine is stopped the supple of gas or steam a camshaft device - Google Patents
A kind of cylinder deactivation engine is stopped the supple of gas or steam a camshaft device Download PDFInfo
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- CN105604708B CN105604708B CN201610079071.4A CN201610079071A CN105604708B CN 105604708 B CN105604708 B CN 105604708B CN 201610079071 A CN201610079071 A CN 201610079071A CN 105604708 B CN105604708 B CN 105604708B
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- cam
- camshaft
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- profile line
- skewed slot
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/02—Cutting-out
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
A kind of cylinder deactivation engine is stopped the supple of gas or steam a camshaft device category technical field of engines, hydraulic control system, skewed slot sliding system and camshaft main body system are respectively placed in the left right part of camshaft in the present invention, wherein valve guide rod a upper ends are slidably connected with cam a, and valve guide rod b upper ends are slidably connected with cam b；When alignment pin slides in chute a, valve guide rod c upper ends are slidably connected with normal profile line cam a, and valve guide rod d upper ends are slidably connected with normal profile line cam b；When alignment pin slides in chute b, valve guide rod c upper ends are slidably connected with basic circle profile line cam a, and valve guide rod d upper ends are slidably connected with basic circle profile line cam b.The present invention can make to realize that working cylinder is not taken a breath no longer, ensures the excess air coefficient of exhaust using the engine of cylinder stopping technique, take into account the discharge performance of cylinder deactivation engine.Control accuracy of the present invention is high, excessively steady and simple in construction, manufacture easily, cost it is low, be easy to promote.
Description
Technical field
The invention belongs to technical field of engines, and in particular to a kind of cylinder deactivation engine is stopped the supple of gas or steam a camshaft device.
Background technology
In orthodox car engine, Smaller load work when, throttle opening is small, and pumping loss is big；Take a breath bad, engine
Residual waste gas quantity in cylinder is big, and combustion stability and completeness are poor, cause oil consumption to deteriorate.If multicylinder engine is middle or small
Load condition uses cylinder stopping technique, makes PSD Partical Shut Down for example：Four cylinder engine stops two cylinder workings, then is guarantee phase
Same power output, remaining working cylinder are necessarily required to improve air inflow, and admission pressure rise, pumping loss reduce；Meanwhile air inlet
Pressure, which improves, also can improve engine charging efficiency, and the residual waste gas quantity in remaining cylinder reduces, and then improve gaseous mixture
Burning quality.After engine uses cylinder stopping technique, total combustor surface can also accumulated and is greatly reduced, and then reduce heat transfer damage
Lose, be advantageous to the improvement of the cycle of engine thermal efficiency and oil consumption.
However, when using cylinder stopping technique using engine, the oil spout and igniting of the cylinder that is stopped if only interruption, that
Be stopped cylinder still can constantly air inlet and exhaust, this will engine emission produce extremely severe negative effect.
Automobile engine is handled using Three Way Catalytic Converter on Exhaust Gas Emission mostly at present, and triple effect catalytic converter is only in mistake
Measure when air coefficient is near 1 to have well to three kinds of hydrocarbon, carbon monoxide and nitrogen oxides emissions simultaneously
Transformation efficiency, if working cylinder does not continue air inlet, it will cause the air capacity of go in engine exhaust manifold significantly to carry
Height, excess air coefficient are much larger than 1, and the conversion efficiency of nox in exhaust is remarkably decreased, deterioration of emission.Thus, using
On the engine of cylinder stopping technique, working cylinder does not stop valve mechanism and is necessary for design.
The content of the invention
Stopped the supple of gas or steam a camshaft device it is an object of the invention to provide a kind of cylinder deactivation engine, when realizing cylinder deactivation of engine not
Working cylinder is no longer taken a breath, and improves the discharge performance of cylinder deactivation engine.
The present invention by camshaft main body system I, skewed slot sliding system II and hydraulic control system III, valve guide rod a 40,
Valve guide rod c 41, valve guide rod d42 and valve guide rod b43 compositions, camshaft main body system I, skewed slot sliding system II and liquid
Pressure control system III is using same root camshaft 1, and camshaft main body system I is placed in the right part of camshaft 1, and skewed slot sliding system II is put
In the middle part of camshaft 1, hydraulic control system III is placed in the left part of camshaft 1, wherein valve guide rod a40 upper ends and camshaft main body system
The I cam a19 that unites is slidably connected, and valve guide rod b43 upper ends are slidably connected with camshaft main body system I cam b11.
When alignment pin 18 slides in chute a5 in camshaft main body system I, valve guide rod c 41 upper end and camshaft
Normal profile line cam a8 is slidably connected in system of subject I, valve guide rod d42 upper end and normal type in camshaft main body system I
Line cam b13 is slidably connected.
When alignment pin 18 slides in chute b7, the upper ends of valve guide rod c 41 and basic circle molded line in camshaft main body system I
Cam a9 is slidably connected, and valve guide rod d42 upper ends are slidably connected with basic circle profile line cam b12 in camshaft main body system I.
In skewed slot a27 and skewed slot b25 groove body axial center points and camshaft main body system I in skewed slot sliding system II
Cam a19 and cam b11 maximums protruding point and the axial line of camshaft 1 are in the same plane.
Described hub body system I is by camshaft 1, axle sleeve 2, gear 3, spacing convex shoulder a20, spacing convex shoulder b22, upper lid
Plate a21, lower cover a4, cam a19, cam b11, cam c14, cam d10, basic circle profile line cam a9, normal profile line cam a8,
Basic circle profile line cam b12, normal profile line cam b13, upper cover plate b17, lower cover b6, chute a5, chute b7, alignment pin 18, bullet
Spring 15, bolt a16 compositions, its bottom bracket axle 2 are connected through spline with the right-hand member of camshaft 1, and gear 3 is fixed in the right-hand member of axle sleeve 2, axle sleeve 2
Left end and upper cover plate a21 and lower cover b7 gaps coordinate, and upper cover plate a21 and lower cover a4 both sides are by spacing convex shoulder a20 and spacing
Convex shoulder b22 is spacing；Spacing convex shoulder a20 and spacing convex shoulder b22 is spacing to be fixed in the outer surface of axle sleeve 2.
Cam a19, cam c14, cam d10 and cam b11 are fixed in the center outer surface of camshaft 1, cam from right-to-left
A19, cam c14, cam d10 are identical with cam b11 axial width；Cam a19 and cam b11 is molded line identical monotype line
Cam, cam b11 arrange compared with cam a19 difference 180 degrees；Cam c14 is by basic circle profile line cam a9 and normal profile line cam a8 groups
Into；Basic circle profile line cam a9 and normal profile line cam a8 axial widths are respectively the 1/2 of cam c14；Cam d10 is by basic circle molded line
Cam b12 and normal profile line cam b13 compositions；Basic circle profile line cam b12 and normal profile line cam b13 axial widths are respectively convex
Take turns the 1/2 of d10；Normal profile line cam a8 and normal profile line cam b13 cam profile is identical with cam a19, outside camshaft 1
Surface differs 90 degree and 270 degree arrangements compared with cam a19 respectively；Basic circle profile line cam a9 and basic circle profile line cam b12 sections are circle
Shape is identical with normal profile line cam a8 and normal profile line cam b13 molded line basic circles radius；Section between cam a19 and cam c14
The outer surface of camshaft 1 or so be additionally provided with chute b7 and chute a5, the axial distance between two chutes is cam a19 axial widths
1/2.
Upper cover plate b17 holes are equipped with alignment pin 18 and spring 15 from inside to outside, and spacing through bolt a16.
Alignment pin 18 contacts with chute b7 under cylinder deactivation work state, and alignment pin 18 and chute a5 connects under normal operating conditions
Touch；Upper cover plate a21 and lower cover a4, upper cover plate b17 and lower cover b6 are bolted；Lower cover a4 and lower cover b6 consolidate
Engine cylinder is connected on to cover.
Described skewed slot sliding system II is by slide bar 24, slide bar bearing 23, annular groove a26, annular groove b28, skewed slot a27, skewed slot
B25 is formed；The lower end of slide bar 24 is fixed in slide bar bearing 23；Slide bar bearing 23 is fixed in engine cylinder and covered；Annular groove a26 is located at
Skewed slot a27 and skewed slot b25 sides, annular groove b28 are located at skewed slot a27 and skewed slot b25 opposite sides, annular groove a26 and annular groove b28 with tiltedly
Groove a27 connects with skewed slot b25, and groove depth is identical；The circumferential span of camshaft 1 is respectively less than 180 at skewed slot a27 and skewed slot b250,
Oppositely oriented, length is identical, and identical with the angle of the axis of camshaft 1；The upper end of cylinder deactivation work state drop shot 24 is in annular groove a26
Interior slip, the upper end of normal work drop shot 24 are slided in annular groove b28；Slide bar 24 and annular groove a26 and annular groove b28 bottom lands gap are matched somebody with somebody
Close.
The hydraulic control system III is by lower cover c30, upper cover plate c37, annular stop a29, annular stop b31, positioning
Bolt a39, bolt b36, rotary-type slide valve valve element 32, camshaft configured left boss 35, catch 34, bolt b33, unload oilhole
38th, hollow oil guide bolt a44, magnetic valve a45, oil pipe a46, engine lubricating oil high-pressure oil duct 47, hollow oil guide bolt b48,
Magnetic valve b49, oil pipe b50 are formed, wherein
Annular groove is provided with left and right sides of upper cover plate c37 and lower cover c30；Upper cover plate c37 centre positions are provided with and unload oilhole 38；On
Cover plate c37 is affixed through bolt with lower cover c30, and lower cover c30 is fixed in engine cylinder and covered；Annular stop a29 and upper cover plate
Right side annular groove between c37 and lower cover c30 is connected；Positioning hole and the positioning in upper cover plate c37 are also set up on annular stop a29
Bolt a39 is connected；Annular stop a29 coordinates with the gap of camshaft 1；Annular stop b31 and upper cover plate c37 and lower cover c30 it
Between left side annular groove be connected；Positioning hole is also provided with annular stop b31 with the bolt b36 in upper cover plate c37 to be connected；It is convex
The left side of wheel shaft 1 is provided with camshaft configured left boss 35, and both axial lines overlap；32 located pin of rotary-type slide valve valve element and camshaft
Configured left boss 35 is connected, and catch 34 is fixed in the left end of camshaft configured left boss 35, the outer ring of rotary-type slide valve valve element 32 through bolt b33
Coordinate with ring gap in lower cover c30 and upper cover plate c37；When rotary-type slide valve valve element 32 is moved to right-hand member, unload oilhole 38 with
Cavity connection between annular stop b31 and rotary-type slide valve valve element 32, when rotary-type slide valve valve element 32 is moved to left end, is unloaded
Cavity between oilhole 38 and annular stop a29 and rotary-type slide valve valve element 32 connects；When rotary-type slide valve valve element 32 is moved to
When low order end or high order end, certain interval be present with annular stop a29 and annular stop b31.
Oil pipe a46 one end connects with engine lubricating oil high-pressure oil duct 47, and the other end is through hollow oil guide bolt a44 and annular
Cavity connection between link stopper a29 and rotary-type slide valve valve element 32, oil pipe a46 middle parts are provided with magnetic valve a45.
Oil pipe b50 one end connects with engine lubricating oil high-pressure oil duct 47, and the oil pipe b50 other ends are through hollow oil guide bolt
Cavity between b48 and annular stop b31 and rotary-type slide valve valve element 32 is connected, and magnetic valve b49 is provided with the middle part of oil pipe b50.
Annular stop a29, annular stop b31 and rotary-type slide valve valve element 32 axial line overlap with camshaft axial line.
Magnetic valve a45 and magnetic valve b49 is two-bit triplet magnetic valve.
According to specific decision principle in the present invention, if engine need to be changed into cylinder deactivation work state by normal operating conditions
When, magnetic valve b49 is powered, and the mesohigh lubricating oil of control engine lubricating oil high-pressure oil duct 47 flows through magnetic valve by oil pipe b50
The cavity that b49, hollow oil guide bolt b48 enter between annular stop b31 and rotary-type slide valve valve element 32；Rotary-type slide valve valve element
32 under arranged on left and right sides differential pressure action Slideslip to the right, promote the overall Slideslip to the right of camshaft 1, slide bar 24 is bonded annular groove b28
Left side wall；When the left view of camshaft 1 turns clockwise slide bar 24 enter skewed slot a27, camshaft 1 skewed slot a27 guiding under to the right
Move side；Camshaft 1 moves right and unloaded between oilhole 38 and annular stop b31 and rotary-type slide valve valve element 32 after specific range
Cavity is connected, and magnetic valve b49 is closed；After skewed slot a27 integrally slips over slide bar 24, slide bar 24 enters annular groove a26, basic circle profile line cam
A9 has slided into original normal profile line cam a8 axial location, and it is convex that basic circle profile line cam b12 has slided into original normal molded line
B13 axial location is taken turns, alignment pin 18 enters chute b7, and is kept not in the axial location of guiding lower cam axle 1 of alignment pin 18
Become；Valve guide rod c41 and valve guide rod d42 upper ends are respectively basic circle profile line cam a9 and basic circle profile line cam b12, the two gas
Door enters a working condition of stopping the supple of gas or steam.
If engine need to be changed into normal operating conditions by cylinder deactivation work state, magnetic valve a45 is powered, and controls engine
The mesohigh lubricating oil of lubricating oil high-pressure oil duct 47 flows through magnetic valve a45, hollow oil guide bolt a44 by oil pipe a46 and enters annular
Cavity between link stopper a29 and rotary-type slide valve valve element 32；Rotary-type slide valve valve element 32 under arranged on left and right sides differential pressure action to the left
Slideslip, wall on the right side of rotating ring groove a26 is promoted to be bonded with slide bar 24；Slide bar 24 enters oblique when the left view of camshaft 1 turns clockwise
Groove b25, camshaft 1 move to the left under skewed slot b25 guiding；Camshaft 1 unloads oilhole 38 and ring after being moved to the left specific range
Cavity between shape link stopper b31 and rotary-type slide valve valve element 32 can also be connected, and magnetic valve a45 is closed；Skewed slot b25 integrally slips over cunning
After bar 24, normal profile line cam a8 and normal profile line cam b13 move to left back original axial location, and slide bar 24 enters annular groove b28, fixed
Position pin 18 enters chute a5, keeps constant in the axial location of guiding lower cam axle 1 of alignment pin 18, two valves recover normal work
State.
If during 1 left view rotate counterclockwise of camshaft, slide bar 24 enter skewed slot b25, camshaft 1 skewed slot b25 guiding under to
Move on right side；Slide bar 24 enters skewed slot a27, and camshaft 1 moves to the left under skewed slot a27 guiding.
Compared with prior art, the beneficial effects of the present invention are：
The present invention can make the engine using cylinder stopping technique, realize that the valve of not working cylinder is stopped simultaneously, no
Working cylinder is no longer taken a breath, and ensures the excess air coefficient of exhaust, takes into account the discharge performance of cylinder deactivation engine.
The present invention controls the axial movement of camshaft, control accuracy is high, camshaft axial movement by skewed slot sliding system
Speed is fast, and the circle of cam axle 1 can be achieved cylinder deactivation of engine working condition and turn with normal operation condition valve operation state
Change；Meanwhile can also effectively avoid cam shaft that rigid collision occurs between sliding process cam and valve, it is excessively steady.
The present invention is simple in construction, easily manufactured, cost is low, easy to spread.
Brief description of the drawings
Fig. 1 is a camshaft device schematic diagram of being stopped the supple of gas or steam under normal operating conditions
Fig. 2 is Section A-A left view
Fig. 3 is section B-B left view
Fig. 4 is C-C sections left view
Fig. 5 is D-D sections left view
Fig. 6 is E-E sections left view
Fig. 7 is the top view of skewed slot sliding system II
Fig. 8 is the upward view of skewed slot sliding system II
Fig. 9 is F-F sections left view
Figure 10 is G-G sections left view
Figure 11 be camshaft 1 it is right depending on turning clockwise when the centre position of chute 27 move to right to the schematic diagram above slide bar 23
Figure 12 be camshaft 1 it is right depending on turning clockwise when the integral right of chute 27 move past the schematic diagram of slide bar 23
Figure 13 be camshaft 1 it is right depending on turning clockwise when camshaft 1 be moved to the left schematic diagram above slide bar 23
Wherein：The axle sleeve of I, camshaft main bodies system, II 1. camshaft of skewed slots III, hydraulic control systems of sliding system 2.
3. 6. lower cover b of gear 4. lower cover a, 5. chute a, 7. chute b, the 8. normal basic circle profile line cam a of profile line cam a 9.
10. the bolt a of 11. cam b of cam d, 12. basic circle profile line cam b, 13. 15. springs of normal 14. cam c of profile line cam b 16.
17. 18. alignment pins of upper cover plate b, 19. cam a, 20. spacing 21. upper cover plate a of convex shoulder a, the 22. spacing slide bar branch of convex shoulder b 23.
The rings of 30. lower cover c of seat 24. slide bar, 25. skewed slot b, 26. annular groove a, 27. skewed slot a, 28. annular groove b, 29. annular stop a 31.
The bolt b 37. of 35. camshaft configured left boss of shape link stopper b 32. rotary-type slide valve valve element, 33. bolt b, 34. catch 36.
Upper cover plate c 38. unloads the valves of 42. valve guide rod d of oilhole 39. bolt a, 40. valve guide rod a, 41. valve guide rod c 43.
Hollow 45. magnetic valve a of oil guide bolt a, 46. oil pipe a47. engine lubricating oils high-pressure oil ducts, the 48. hollow Oil Guides of guide rod b 44.
The oil pipe b of 49. magnetic valve b of bolt b 50.
Embodiment
The present invention is described in detail with reference to Fig. 1-Figure 13.
As shown in figure 1, the present invention is by camshaft main body system I, skewed slot sliding system II and hydraulic control system III, valve
Guide rod a 40, valve guide rod c 41, valve guide rod d42 and valve guide rod b43 compositions, camshaft main body system I, skewed slot slide system
Using same root camshaft 1, camshaft main body system I is placed in the right part of camshaft 1 for system II and hydraulic control system III, and skewed slot slides
System II is placed in the middle part of camshaft 1, and hydraulic control system III is placed in the left part of camshaft 1, wherein valve guide rod a40 upper ends and cam
The cam a19 of axle system of subject I is slidably connected, and valve guide rod b43 upper ends are slided with camshaft main body system I cam b11 to be connected
Connect.
When alignment pin 18 slides in chute a5 in camshaft main body system I, valve guide rod c 41 upper end and camshaft
Normal profile line cam a8 is slidably connected in system of subject I, valve guide rod d42 upper end and normal type in camshaft main body system I
Line cam b13 is slidably connected.
When alignment pin 18 slides in chute b7, the upper ends of valve guide rod c 41 and basic circle molded line in camshaft main body system I
Cam a9 is slidably connected, and valve guide rod d42 upper ends are slidably connected with basic circle profile line cam b12 in camshaft main body system I.
The camshaft main body system I mainly includes camshaft 1, is placed in the axle sleeve 2 of the right-hand member of camshaft 1, is fixed in axle sleeve 2
On gear 3, cam a19, cam b11, cam c14, the cam d10 being fixed on camshaft 1, the upper lid on axle sleeve 2
Plate a21, lower cover a4, and upper cover plate b17, lower cover b6 on camshaft 1.
Spline is set in the axle sleeve 2, is connected with the left end of cam 1 by spline；Spacing convex shoulder a20 is additionally provided with axle sleeve 2
With spacing convex shoulder b22, the upper cover plate a21 and lower cover a4 are placed between spacing convex shoulder a20 and spacing convex shoulder b22, to axle sleeve 2
Carried out with the axial movement of gear 3 spacing.
It is additionally provided with chute a5 and chute b7 on the camshaft 1, the spacing between two chute longitudinal center lines is cam
The 1/2 of a19 axial widths.Alignment pin 18 is set in the upper cover plate b17, its one end is connected with spring 15, and enters by bolt a16
Row is spacing；The alignment pin 18 is connected with chute a5 during engine work, alignment pin 18 and chute b7 phases during cylinder deactivation work
Even, ensure that camshaft axial location when without engine work state and cylinder deactivation work condition conversion is kept not
Become.
The upper cover plate a21 and lower cover a4, upper cover plate b17 and lower cover b6 are affixed by bolt, the lower cover a4
Engine cylinder is fixed in lower cover b6 to cover.
The upper cover plate a21 and lower cover a4 coordinate with the gap of axle sleeve 2, it is ensured that axle sleeve 2 can be rotated freely；The upper lid
Plate b17 and lower cover b6 coordinates with camshaft 1 also gap, it is ensured that camshaft 1 can be rotated freely.
As Figure 1-Figure 5, the cam a19, cam b11, cam c14 are identical with cam d10 axial widths；It is described convex
Wheel a19 and cam b11 is monotype line cam, and cam profile is identical, and cam b11 differs 180 ° of corners compared with cam a19 and arranged.
The cam c14 is made up of basic circle profile line cam a9 and normal profile line cam a8；Basic circle profile line cam a9 and normal
Profile line cam a8 axial widths are identical, are the 1/2 of cam c14；The cam d10 is by basic circle profile line cam b12 and normal molded line
Cam b13 is formed；Basic circle profile line cam b12 and normal profile line cam b13 axial widths are respectively the 1/2 of cam d10.
The cam profile and cam a19 all sames of the normal profile line cam a8 and normal profile line cam b13, it is more convex respectively
Take turns a19 and differ 90 ° and 270 ° of corner arrangements；Basic circle profile line cam a9 and basic circle profile line cam the b12 sections are circle, with institute
It is identical with the radius of normal profile line cam b13 molded line basic circles to state normal profile line cam a8.Under cylinder deactivation of engine working condition, basic circle
Profile line cam a9 and basic circle profile line cam b12 are moved respectively to valve guide rod c41 and valve guide rod d42 tops, and two valves are no longer
Open, be stopped；Under engine work state, normal profile line cam a8 and normal profile line cam b13 are moved respectively to
Valve guide rod c41 and valve guide rod d42 tops, two valves recover normally-open and closed.
As shown in Fig. 1, Fig. 6-Fig. 8, the skewed slot sliding system II mainly include slide bar 24 vertically disposed with camshaft,
It is placed in slide bar bearing 23, the annular groove a26 on camshaft outer surface, annular groove b28, skewed slot a27 that engine cylinder covers and tiltedly
Groove b25.
The slide bar 24 is fixed in slide bar bearing 23, the corresponding annular groove b28 of slide bar 24 during engine work, cylinder deactivation work
The corresponding annular groove a26 of slide bar 24 when making, and 0.1-0.5mm gaps be present with annular groove a 26 and annular groove b28 bottom lands.
The annular groove a26 and annular groove b28 are respectively arranged in skewed slot a 27 and skewed slot b25 both sides, and respectively with skewed slot a27 and
Skewed slot b25 is connected, and groove depth is identical, two annular groove centerline axis to spacing be cam a19 1/2.
The 1 circumferential span of skewed slot a27 and skewed slot b25 camshaft is respectively less than 180 °, the angle phase with the axis of camshaft 1
Together, length is identical, oppositely oriented, guarantees to realize the axial movement back and forth of camshaft 1, and ensure camshaft 1 move back and forth away from
From consistent.
Skewed slot a27 and skewed slot the b25 axial length can make camshaft 1 move axially the 1/2 of cam a19 axial widths,
At two skewed slot groove body axial centres and cam a19 and cam b11 maximum protrusions and the axial line of camshaft 1 in the same plane, really
Protect valve guide rod c41 upper end basic circle profile line cam a9 and normal profile line cam a8, valve guide rod d42 upper ends basic circle profile line cam
A12 goes to corresponding valve to normal profile line cam b13 in normal profile line cam a8 and normal profile line cam b13 base circle portion
During upper end carry out camshaft 1 axial movement, namely ensure valve guide rod c41 and valve guide rod d42 not with cam a19 and
The cam conversion of upper end is carried out when cam b11 is in close contact, avoids that rigid collision occurs.
As shown in Fig. 1, Fig. 9, Figure 10, hydraulic control system III is mainly by lower cover c30, upper cover plate c37, annular stop
A29, annular stop b31, bolt a39, bolt b36, rotary-type slide valve valve element 32, camshaft configured left boss 35, gear
Piece 34, bolt b33, unload oilhole 38, hollow oil guide bolt a44, magnetic valve a45, oil pipe a46, engine lubricating oil high-pressure oil duct
47th, hollow oil guide bolt b48, magnetic valve b49, oil pipe b50 are formed.
Annular groove is had at left and right sides of the upper cover plate c37 and lower cover c30, centre position is provided with and unloads oilhole 38；Institute
State that upper cover plate c37 and lower cover c30 is affixed by bolt, and lower cover c30 is fixed in engine cylinder and covered.
The annular stop a29 is closely placed in the right side annular groove between upper cover plate c37 and lower cover c30, is installed on
Bolt a39 in cover plate c37 gos deep into its upper Positioning holes, it is ensured that annular stop a29 and upper cover plate c37 and lower cover c30
Between it is affixed.
The annular stop b31 is also in left side annular groove of the close installation between upper cover plate c37 and lower cover c30；Annular
Positioning hole is also provided with link stopper b31 with the bolt b36 in upper cover plate c37 to be connected, and ensures that annular stop b31 is fixed in
Within cover plate c37 and lower cover c30.
The rotary-type slide valve valve element 32 is installed on camshaft left end boss 35, one end and the bottom of camshaft left end boss 35
Portion is connected, and provided with positioning finger setting, one end is in close contact with catch 34, ensured by the bolt b33 being threadedly coupled with boss
Catch 34 and rotary-type slide valve valve element 32 rotate in the same direction, at the same speed with camshaft 1.
The annular stop a29 and camshaft 1, annular stop b31 and rotary-type slide valve valve element 32, rotary-type slide valve valve element
Equal gap coordinates between 32 and lower cover c30 and upper cover plate c37, it is ensured that camshaft and rotary-type slide valve valve element 32 can freely turn
It is dynamic.
The upper cover plate c37 axial directions centre position is provided with and unloads oilhole 38, when rotary-type slide valve valve element 32 is moved to right-hand member
The cavity unloaded between oilhole 38 and annular stop b31 and rotary-type slide valve valve element 32 is connected, and carries out emptying；When rotary-type slide valve valve
The cavity that core 32 is unloaded when being moved to left end between oilhole 38 and annular stop a29 and rotary-type slide valve valve element 32 is connected, and is unloaded
Oil.
The engine lubricating oil high-pressure oil duct 47, oil pipe a46, magnetic valve a45, hollow oil guide bolt a44 and annular shelves
Cavity between block a29 and rotary-type slide valve valve element 32 is connected in series, and magnetic valve a45 is into annular stop a29 and rotatably
The extreme pressure lubricant of cavity is controlled between valve core of the spool valve 32.
The engine lubricating oil high-pressure oil duct 47, oil pipe b50, magnetic valve b49, hollow oil guide bolt b48 and annular shelves
Cavity is same between block b31 and rotary-type slide valve valve element 32 is connected in series, and magnetic valve b49 is to entering annular stop a29 and rotation
The extreme pressure lubricant of cavity is controlled between formula valve core of the spool valve 32.
Described magnetic valve a45 and magnetic valve b49 is two-bit triplet magnetic valve, when magnetic valve a45 is powered, engine profit
Turned between the hollow oil guide bolts 44 of lubricating oil high-pressure oil duct 47- oil pipes a46-；When magnetic valve b49 is powered, engine lubricating oil is high
Turned between the force feed road hollow oil guide bolt b48 of 47- oil pipes b50-.When magnetic valve a45 is powered off, annular stop a29 and rotation
Cavity between formula valve core of the spool valve 32 is communicated by hollow oil guide bolt a44 and oil pipe a46 with engine low pressure drainback passage；When
When magnetic valve b49 is powered off, cavity between annular stop b31 and rotary-type slide valve valve element 32 by hollow oil guide bolt b48 and
Oil pipe b50 communicates with engine low pressure drainback passage.
The engine is stopped the supple of gas or steam door control method, is realized using above-mentioned controlling device for doors of stopping the supple of gas or steam, is specially：According to specifically sentencing
Disconnected principle, during engine low load, magnetic valve b49 is opened, and the mesohigh lubricating oil of engine lubricating oil high-pressure oil duct 47 passes through oil
Pipe b50 flows through the sky that magnetic valve b49, hollow oil guide bolt b48 enter between annular stop b31 and rotary-type slide valve valve element 32
Chamber；The Slideslip to the right under differential pressure action of rotary-type slide valve valve element 32, drives the Slideslip to the right of camshaft 1, and slide bar 24 is bonded ring
Wall on the left of groove b28；Skewed slot a27 can be such that slide bar 24 enters in its groove when camshaft 1 turns clockwise, and camshaft 1 is in skewed slot a27
Moved to the right under guiding and control；Camshaft move right unload after specific range oilhole 38 and annular stop b31 with it is rotary
Cavity connection between valve core of the spool valve 32, magnetic valve b49 are closed, the sky between annular stop b31 and rotary-type slide valve valve element 32
The hydraulic oil of intracavitary is by pressure release；It may proceed to move to the right in skewed slot a27 guiding lower cam axle, skewed slot a27 integrally slips over cunning
After bar 24, slide bar 24 enters annular groove a26, and alignment pin 18 enters chute b7, and basic circle profile line cam a9 has slided into original normal type
Line cam a8 axial location, basic circle profile line cam b12 have slided into original normal profile line cam a13 axial location；Valve
Guide rod c41 and valve guide rod d42 upper ends are basic circle profile line cam, are stopped.
In the big load of engine, magnetic valve a45 is opened, and the mesohigh lubricating oil of engine lubricating oil high-pressure oil duct 47 passes through
Oil pipe a46 flows through the sky that magnetic valve a45, hollow oil guide bolt a44 enter between annular stop a29 and rotary-type slide valve valve element 32
Chamber；Slideslip, drive annular groove a26 right sides wall are bonded rotary-type slide valve valve element 32 with slide bar 24 to the left under hydraulic pressure difference control；
Slide bar 24 enters skewed slot b25 when camshaft 1 turns clockwise, and camshaft 1 moves to the left under skewed slot b25 guiding；Camshaft 1
Being moved to the left the cavity unloaded after specific range between oilhole 38 and annular stop a29 and rotary-type slide valve valve element 32 can also connect,
Magnetic valve a45 is closed；After skewed slot b25 integrally slips over slide bar 24, slide bar 24 enters annular groove b28, and alignment pin 18 enters chute a5, just
Normal profile line cam a8 and normal profile line cam b13 moves to left back original axial location.
If during 1 left view rotate counterclockwise of camshaft, skewed slot b25 drive cams axle 1 moves to the right；Skewed slot a27 guiding is convex
Wheel shaft 1 moves to the left.
Claims (4)
- A camshaft device 1. a kind of cylinder deactivation engine is stopped the supple of gas or steam, it is characterised in that system is slided by camshaft main body system (I), skewed slot Unite (II) and hydraulic control system (III), valve guide rod a (40), valve guide rod c (41), valve guide rod d (42) and valve guide rod b (43) form, camshaft main body system (I), skewed slot sliding system (II) and hydraulic control system (III) use same root camshaft (1), camshaft main body system (I) is placed in camshaft (1) right part, and skewed slot sliding system (II) is placed in the middle part of camshaft (1), hydraulic pressure Control system (III) is placed in camshaft (1) left part, wherein valve guide rod a (40) upper ends and camshaft main body system (I) cam a (19) it is slidably connected, valve guide rod b (43) upper ends are slidably connected with camshaft main body system (I) cam b (11)；Work as camshaft Alignment pin (18) is when chute a (5) is slided in system of subject (I), valve guide rod c (41) upper end and camshaft main body system (I) normal profile line cam a (8) is slidably connected in, valve guide rod d (42) upper end and normal type in camshaft main body system (I) Line cam b (13) is slidably connected；When alignment pin (18) slides in chute b (7), valve guide rod c (41) upper ends and camshaft master Basic circle profile line cam a (9) is slidably connected in system system (I), valve guide rod d (42) upper ends and base in camshaft main body system (I) Round line cam b (12) is slidably connected；Skewed slot a (27) and skewed slot b (25) groove body axial centre in skewed slot sliding system (II) Point is with the cam a (19) in camshaft main body system (I) and the maximum protruding points of cam b (11) and camshaft (1) axial line same In one plane.
- A camshaft device 2. a kind of cylinder deactivation engine as described in claim 1 is stopped the supple of gas or steam, it is characterised in that described camshaft System of subject（ Ⅰ）By camshaft (1), axle sleeve (2), gear (3), spacing convex shoulder a (20), spacing convex shoulder b (22), upper cover plate a (21), lower cover a (4), cam a (19), cam b (11), cam c (14), cam d (10), basic circle profile line cam a (9), normal Profile line cam a (8), basic circle profile line cam b (12), normal profile line cam b (13), upper cover plate b (17), lower cover b (6), chute a (5), chute b (7), alignment pin (18), spring (15), bolt a (16) compositions, its bottom bracket axle (2) are right through spline and camshaft (1) End connection, gear (3) are fixed in axle sleeve (2) right-hand member, and axle sleeve (2) left end coordinates with upper cover plate a (21) and lower cover b (7) gap, Upper cover plate a (21) and lower cover a (4) both sides are spacing by spacing convex shoulder a (20) and spacing convex shoulder b (22)；Spacing convex shoulder a (20) and Spacing convex shoulder b (22) is spacing to be fixed in axle sleeve (2) outer surface；Cam a (19), cam c (14), cam d (10) and cam b (11) Camshaft (1) center outer surface is fixed in from right-to-left, cam a (19), cam c (14), cam d (10) and cam b (11) Axial width is identical；Cam a (19) and cam b (11) is molded line identical monotype line cam, and cam b (11) is compared with cam a (19) Differ 180 degree arrangement；Cam c (14) is made up of basic circle profile line cam a (9) and normal profile line cam a (8)；Basic circle profile line cam a (9) and normal profile line cam a (8) axial width is respectively the 1/2 of cam c (14)；Cam d (10) is by basic circle profile line cam b (12) formed with normal profile line cam b (13)；Basic circle profile line cam b (12) and normal profile line cam b (13) axial width difference For the 1/2 of cam d (10)；Normal profile line cam a (8) and normal profile line cam b (13) cam profile and cam a (19) phase Together, 90 degree and 270 degree arrangements are differed compared with cam a (19) respectively in camshaft (1) outer surface；Basic circle profile line cam a (9) and basic circle Profile line cam b (12) section is circle, with normal profile line cam a (8) and the radius phase of normal profile line cam b (13) molded line basic circle Together；Camshaft (1) outer surface of section or so is additionally provided with chute b (7) and chute a (5) between cam a (19) and cam c (14), and two Axial distance between chute is the 1/2 of cam a (19) axial width；Upper cover plate b (17) hole is equipped with alignment pin from inside to outside (18) it is and spring (15), and spacing through bolt a (16)；Alignment pin (18) contacts with chute b (7) under cylinder deactivation work state, normally Alignment pin (18) contacts with chute a (5) under working condition；Upper cover plate a (21) and lower cover a (4), upper cover plate b (17) and lower cover Plate b (6) is bolted；Lower cover a (4) and lower cover b (6) are fixed in engine cylinder and covered.
- A camshaft device 3. a kind of cylinder deactivation engine as described in claim 1 is stopped the supple of gas or steam, it is characterised in that described skewed slot is slided Dynamic system (II) is by slide bar (24), slide bar bearing (23), annular groove a (26), annular groove b (28), skewed slot a (27), skewed slot b (25) group Into；Slide bar (24) lower end is fixed in slide bar bearing (23)；Slide bar bearing (23) is fixed in engine cylinder and covered；Annular groove a (26) Located at skewed slot a (27) and skewed slot b (25) side, annular groove b (28) is located at skewed slot a (27) and skewed slot b (25) opposite side, annular groove a (26) connected with annular groove b (28) with skewed slot a (27) and skewed slot b (25), and groove depth is identical；Skewed slot a (27) and skewed slot b (25) place The circumferential span of camshaft (1) is respectively less than 180 °, and oppositely oriented, length is identical, and identical with the angle of camshaft (1) axis； Cylinder deactivation work state drop shot (24) upper end is slided in annular groove a (26), and normal work drop shot (24) upper end is in annular groove b (28) Middle slip；Slide bar (24) coordinates with annular groove a (26) and annular groove b (28) bottom land gap.
- A camshaft device 4. a kind of cylinder deactivation engine as described in claim 1 is stopped the supple of gas or steam, it is characterised in that the hydraulic control System (III) by lower cover c (30), upper cover plate c (37), annular stop a (29), annular stop b (31), bolt a (39), Bolt b (36), rotary-type slide valve valve element (32), camshaft configured left boss (35), catch (34), bolt b (33), unload oilhole (38), hollow oil guide bolt a (44), magnetic valve a (45), oil pipe a (46), engine lubricating oil high-pressure oil duct (47), hollow lead Oil draining bolt b (48), magnetic valve b (49), oil pipe b (50) compositions, wherein upper cover plate c (37) and lower cover c (30) left and right sides are opened There is annular groove；Upper cover plate c (37) centre position is provided with and unloads oilhole (38)；Upper cover plate c (37) and lower cover c (30) is affixed through bolt, Lower cover c (30) is fixed in engine cylinder and covered；The right side between annular stop a (29) and upper cover plate c (37) and lower cover c (30) Side ring groove is connected；Positioning hole is also set up on annular stop a (29) with the bolt a (39) in upper cover plate c (37) to be connected；Annular Link stopper a (29) coordinates with camshaft (1) gap；A left side between annular stop b (31) and upper cover plate c (37) and lower cover c (30) Side ring groove is connected；Positioning hole is also provided with annular stop b (31) with the bolt b (36) in upper cover plate c (37) to be connected；It is convex Camshaft configured left boss (35) is provided with the left of wheel shaft (1), both axial lines overlap；Rotary-type slide valve valve element (32) located pin with Camshaft configured left boss (35) is connected, and catch (34) is fixed in camshaft configured left boss (35) left end through bolt b (33), rotatably Valve core of the spool valve (32) outer ring coordinates with the interior ring gaps of lower cover c (30) and upper cover plate c (37)；When rotary-type slide valve valve element (32) moves When moving to right-hand member, the cavity unloaded between oilhole (38) and annular stop b (31) and rotary-type slide valve valve element (32) connects, and works as rotation When formula valve core of the spool valve (32) is moved to left end, unload between oilhole (38) and annular stop a (29) and rotary-type slide valve valve element (32) Cavity connection；When rotary-type slide valve valve element (32) is moved to low order end or high order end, with annular stop a (29) and annular shelves Certain interval be present in block b (31)；Oil pipe a (46) one end connects with engine lubricating oil high-pressure oil duct (47), in other end warp Empty oil guide bolt a (44) connects with the cavity between annular stop a (29) and rotary-type slide valve valve element (32), in oil pipe a (46) Portion is provided with magnetic valve a (45)；Oil pipe b (50) one end connects with engine lubricating oil high-pressure oil duct (47), oil pipe b (50) other end Connected through hollow oil guide bolt b (48) with the cavity between annular stop b (31) and rotary-type slide valve valve element (32), oil pipe b (50) middle part is provided with magnetic valve b (49)；Annular stop a (29), annular stop b (31) and rotary-type slide valve valve element (32) axle center Line overlaps with camshaft axial line；Magnetic valve a (45) and magnetic valve b (49) is two-bit triplet magnetic valve.
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| US10151223B2 (en) * | 2016-06-09 | 2018-12-11 | Ford Global Technologies, Llc | Valve deactivating system for an engine |
| US10024256B2 (en) * | 2016-06-09 | 2018-07-17 | Ford Global Technologies, Llc | System and method for intake manifold pressure control |
| CN108105356B (en) * | 2017-12-06 | 2020-10-16 | 肖光宇 | Piston reciprocating engine cylinder deactivation system |
| CN109209543A (en) * | 2018-11-27 | 2019-01-15 | 安徽江淮汽车集团股份有限公司 | A kind of mechanical tappets |
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| JP4484843B2 (en) * | 2006-04-28 | 2010-06-16 | 日立オートモティブシステムズ株式会社 | Valve timing control device for internal combustion engine |
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| CN101535614A (en) * | 2006-11-16 | 2009-09-16 | 洋马株式会社 | Method of controlling internal combustion engine |
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