CN208605287U

CN208605287U - Automobile engine variable cycle low-resistance Force control system

Info

Publication number: CN208605287U
Application number: CN201620386840.0U
Authority: CN
Inventors: 莫嘉林
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-22
Filing date: 2016-04-22
Publication date: 2019-03-15
Anticipated expiration: 2026-04-22

Abstract

The utility model is a kind of automobile engine variable cycle control system；The system can make four-stroke engine automatically become the passive transport with two-stroke cycle, make exhaust-driven turbo-charger exhaust-gas turbo charger fuel feeding from uninterrupted while keeping engine rotation when automobile belt keeps off and sliding；And be transferred to gear Accelerating running when sliding shape, automobile can be made to have coasting distance and oil-saving effect close to engine misses neutral position sliding in the state of keeping due braking ability without carrying out neutral gear, quenching operations；When being transferred to acceleration mode by sliding with gear, neutral gear can not had to or stepping on clutch pedal carries out start-up operation.

Description

Automobile engine variable cycle low-resistance Force control system

One, technical field

The utility model relates to a kind of automobile engine variable cycle low-resistance Force control system, which entered in automobile After band gear sliding state, changes the circulation pattern of automobile engine immediately, automobile engine is made to be in passive rotation status when institute The resistance of generation and vibration minimize.

Two, background techniques

Currently, especially truck, sliding state account for automobile total run time or traveling when well known automobilism 30% or more of mileage, the mode slided have: idling neutral position sliding, and forced idling band gear slides, and close engine neutral position sliding, It closes engine band gear to slide, closes engine band gear stepping on clutch and slide.

Various sliding modes are all each defective:

Idling neutral position sliding, engine operate under idling, this method coasting distance is long, and oil-saving effect is preferable, but period is sent out Though motivation still idling oil consumption starts to need to carry out off-gear operation, terminates to need to carry out band gear operation, electricity generation efficiency, efficiency of air conditioner Maintain idling area.

Forced idling band gear slides, and no requirement (NR) in operation, braking reliability is constant, but coasting distance is short, and fuel-economizing is unobvious.

Engine neutral position sliding is closed, is that gear lever is put into neutral gear position, by engine misses, when not needing to slide Engine is restarted, gear lever is hung into people's gear appropriate.This mode slided can save idle oil consumption when sliding, section Oily effect is good.The disadvantage is that need to restart engine with gear, and it is troublesome in poeration, vehicle braking reliability is reduced, is not generated electricity, is not had There is air-conditioning.

It closes engine band gear to slide, manual control engine to open, guard's valve, it is troublesome in poeration, and coasting distance is short, section Oil is unobvious.

It closes engine band gear stepping on clutch pedal to slide, disengages reasonable match system, shift gear invariant position will Engine misses slide, and open ignition switch therebetween, when not sliding, while lifting clutch pedal and can continue to travel.This Method oil-saving effect is good, easy to use, the disadvantage is that increasing labor intensity, and larger to wearing from release bearing containing device, increases Failure rate does not generate electricity, without air-conditioning to increase automobilism cost during sliding.

Three, summary of the invention

In order to overcome existing present automobile all to have the defects that different in different sliding modes, the utility model is mentioned For a kind of automobile engine variable cycle low-resistance Force control system, after which can make automobile enter band gear sliding state, immediately Change automobile engine operation mode, by original: air-breathing, compress, splash rise, the four-stroke cycle Mode change that be vented is at suction Gas, exhaust, air-breathing, the two-stroke cycle mode of exhaust.

The technical solution adopted in the utility model is: by camshaft, first row valve rocker, second row valve rocker, becoming Circulation rocker arm, the first roller bearing, the second roller bearing, third roller bearing, retaining spring, timing piston, first synchronize work Plug, stops piston, reset spring, rocker arm shaft, machine oil pipe, pressure maintaining valve, solenoid valve, electronic oil pump, change to follow at the second synchronous piston Loop control circuit composition.The utility model is suitable on the double overhead camshaft engine with double inlet and exhaust valves, on camshaft Equipped with first exhaust cam, second exhaust cam, become circulation cam；When the first synchronous piston enters the second synchronous piston hole and pushes away After dynamic second synchronous piston enters blocking piston hole, when engine original compression stroke starts, becomes circulation cam and also start to drive Third roller bearing makes first row valve rocker, second row valve rocker, becomes the corresponding exhaust of circulation synchronous rocker shake opening Door；In expansion stroke, becomes circulation cam and continue that third roller bearing is driven to shake first row valve rocker, second row valve Arm becomes the corresponding exhaust valve of circulation synchronous rocker shake opening；And cam and third are recycled close to end of a period time-varying in expansion stroke Roller bearing disengages；First roller bearing is installed on first row valve rocker and is equipped with the first positioning and is floatd platform, oil duct, the One synchronous piston hole, the first synchronous piston hole are connected to the oil hole on oil duct and rocker arm shaft, are equipped in the first synchronous piston hole Timing piston and the first synchronous piston；Be equipped on second row valve rocker the second roller bearing and be equipped with second positioning float platform, Stop piston hole, stops that blocking piston and reset spring are installed in piston hole；Become on circulation rocker arm and third Roller Shaft is installed Positioning plane, the second synchronous piston hole are held and be equipped with, the second synchronous piston is installed in the second synchronous piston hole；Become circulation rocker arm with Retaining spring is installed, one end of retaining spring heads on change circulation rocker arm, the other end heads on cylinder head between cylinder head；First row Valve rocker, second row valve rocker, change circulation rocker arm are all mounted on rocker arm shaft, and installation, which is matched, is combined into clearance fit, first row Oil duct junction in valve rocker is opposite with the oilhole on rocker arm shaft；Machine oil pipe and the A of hollow oil duct, solenoid valve on rocker arm shaft connect Mouthful, the connection of the oil outlet of electronic oil pump, be mounted with a pressure maintaining valve on machine oil pipe；Become circulating controling circuit and controls solenoid valve With being turned on or off for the power circuit of electronic oil pump.

When engine is in power output, first exhaust cam in camshaft and second exhaust cam pass through driving the One roller bearing and the second roller bearing realize driving first row valve rocker and second row valve rocker arms roll, make corresponding row Valve is opened in instroke；Change circulation cam in camshaft makes to become circulation rocker arm by driving third roller bearing realization Make idle freely to shake.

When automobile belt keeps off sliding state, as long as accelerator pedal, clutch pedal, brake pedal, change do not follow driver Loop control circuit can enable solenoid valve close drain tap, lubricating oil pump in due course and machine oil is in time pumped into machine oil pipe to push timing piston To push the first synchronous piston and the second synchronous piston, makes first row valve rocker, second row valve rocker, becomes circulation rocker arm After being connected, first row valve rocker, second row valve rocker become circulation rocker arm both with the first exhaust cam in camshaft And second exhaust actuated by cams shakes together, opens exhaust valve in former instroke, cylinder exhaust；Again in camshaft Become circulation actuated by cams to shake together, opens exhaust valve also in former compression stroke, former expansion stroke, engine is enabled to press in original The not air in compression cylinder when contracting stroke, reduces running resistance, and the air-breathing when original splashes and rises by stroke, reduces top land and generate Negative pressure resistance.When former expansion stroke is ended, becomes circulation cam and disengaged with third roller bearing, in former induction stroke When, IO Intake Valve Opens air inlet.So far the two-stroke cycle state all in air inlet, exhaust of each cylinder of engine.

When automobile be in non-band gear sliding state when, become circulation rocker arm immediately with first row valve rocker, second row valve Rocker arm releases interaction relation, and engine restores four-stroke cycle mode again

The utility model has the advantages that: vehicle can not change the reliability of the original braking of vehicle, not change when band gear slides The normal driver behavior habit of the former vehicle of change, the efficiency of air conditioner for not changing corresponding speed, the electricity generation efficiency for not changing corresponding speed In the state of, the resistance and vibration for generating engine minimize, and are effectively prevented from automobile slide speed and decline too fast lack Point, fuel-saving efficiency are high.

Four, Detailed description of the inventions

The invention will be further described with implementation with reference to the accompanying drawing.

Fig. 1 is the camshaft of the utility model and the relative position of each cam and corresponding direction of rotation schematic diagram

Fig. 2 is each cam of the utility model and the corresponding relationship of each rocker arm and rocker arm and rocker arm shaft partial cutaway schematic

Fig. 3 is the relative positional relationship signal of the first row valve rocker and valve and first exhaust cam of the utility model Figure

Fig. 4 is the change circulation rocker arm of the utility model and the relative positional relationship schematic diagram for becoming circulation cam

Fig. 5 is the second exhaust rocker arm of the utility model and the corresponding position relation schematic diagram of valve and second exhaust cam

Fig. 6 is the movable control system schematic diagram of synchronous piston of the utility model

In figure: 1. camshafts, 2. first exhaust cams, 3. become circulation cam, 4. second exhaust cams, 5. first row valves Rocker arm, 6. become circulation rocker arm, and 7. second row valve rockers, 8. rocker arm shafts, 9. oil holes, 10. timing pistons, 11. first is synchronous Piston, 12. hollow oil ducts, 13. first positioning are floatd platform, 14 second synchronous pistons, and 15. second positioning are floatd platform, 16. oil ducts, and 17. Reset spring, 18. blocking pistons, 20 blocking piston holes, 21. first synchronous piston holes, 23. cylinder head, 24. positioning planes, 25. Second synchronous piston hole, 26. retaining spring, 27. solenoid valve, 28 valve core reseting springs, 29. spools, 30. electromagnetic valve coils, 31. Become circulating controling circuit, 32. machine oil pipes, 33. first roller bearings, 34. third roller bearings, 35. second roller bearings, 36 electricity Motivation oil pump, 37. pressure maintaining valves.

Five, specific embodiments

Automobile engine variable cycle low-resistance Force control system is shaken by cylinder head (23), camshaft (1), first exhaust Arm, second exhaust rocker arm (7) become circulation rocker arm (6), rocker arm shaft (8), timing piston (10), the first synchronous piston (11), second Synchronous piston (14) stops piston (18), reset spring (17), the first roller bearing (33), the second roller bearing (35), third Roller bearing (34), machine oil pipe (32), solenoid valve (27), electronic oil pump (36), pressure maintaining valve (37) and change circulating controling circuit (31) it forms.

In Fig. 1, there are first exhaust cam (2), second exhaust cam (4) on camshaft (1) and becomes circulation cam (3), N display in direction of rotation becomes the corresponding position of circulation cam (3) and the first admission cam (2) and the second admission cam (4).

In Fig. 2, the effect of first exhaust cam (2) and second exhaust cam (4) is: passing through driving in exhaust stroke First roller bearing (33) and the second roller bearing (35) make first row valve broadcast arm (5) and second row valve rocker (7) opening Exhaust valve.The effect for becoming circulation cam (3) is: being shaken by driving third roller bearing (34) to make to become circulation rocker arm (6) It is dynamic.First row valve rocker (5), second row valve rocker (7), change circulation rocker arm (6) are all mounted on rocker arm shaft (8), are installed With being combined into clearance fit.Set on the hollow oil duct (12) of rocker arm shaft (8) oil hole (9) and in first row valve rocker (5) Oil duct (16) and the first synchronous piston hole (21) communicate.Be equipped on first row valve rocker (5) the first roller bearing (33) and Float platform (13) and the first synchronous piston hole (21) are positioned equipped with first, timing piston is housed in the first synchronous piston hole (21) (10) and the first synchronous piston (11), when the first synchronous piston (11) does not enter into the second synchronous piston hole (25), and become and follow For third roller bearing (34) on ring rocker arm (6) in the state of becoming circulation cam (3) without contact, first positions the platform that floats It (13) is all to be contacted with the positioning plane (24) become in circulation rocker arm (6), to make the first synchronous piston hole (21) and become to recycle The center line in the second synchronous piston hole (25) in rocker arm (6) is overlapped.Second row valve rocker is equipped with the second Roller Shaft on (7) It holds (35) and is equipped with second and positions and float platform (15) and stop piston hole (20), piston hole (20) is stopped to be provided with blocking piston (18) and reset spring (17), the second synchronous piston (14) do not enter into stop piston hole (20) when, and become circulation rocker arm (6) third roller bearing (34) on is in become without contact and follow in the state of cam (3), the second positioning float platform (15) be all with Become positioning plane (24) contact in circulation rocker arm (6), to make the second synchronous piston hole (25) and second row valve rocker (7) center line of the blocking piston hole (20) in is overlapped.Become and third roller bearing (34) is installed in circulation rocker arm (6) and is equipped with Plane (24) and the second synchronous piston hole (25) are positioned, is mounted with the second synchronous piston (14) in the second synchronous piston hole (25), As long as the third roller bearing (34) become in circulation rocker arm (6) is not contacted with change circulation cam (3), positioning plane (24) is all It positions the platform (15) that floats with the first positioning platform (13) and second that floats and contacts, make the first synchronous piston hole (21) and the second synchronous piston hole (25) and the center line of piston hole (20) is stopped to be overlapped.

In Fig. 3, first exhaust cam (2) is in exhaust stroke by driving the first roller bearing (33) to make first row valve Rocker arm (5) opens exhaust valve, and oil duct (16) are equipped in first row valve rocker (5), first are floatd platform (13), the first synchronous piston Hole (21), and the first roller bearing (33) are installed.

In Fig. 4, the retaining spring (26) being mounted on cylinder head (23) is popped up circulation rocker arm (8) is become, and becomes circulation Rocker arm (6) is mounted on rocker arm shaft (8), is become circulation rocker arm (6) and is equipped with positioning plane (24), the second synchronous piston hole (25), And third roller bearing (34) are installed, become circulation cam (3) and drives third roller in former compression stroke and former expansion stroke Bearing (34) makes to become circulation rocker arm (6) shake.

In Fig. 5, second exhaust cam (4) is in exhaust stroke by driving the second roller bearing (35) to make second row valve Rocker arm (7) opens exhaust valve, second row valve rocker (7) be equipped with second float platform (15) stop piston hole (20), and be equipped with Second roller bearing (35).

In Fig. 6, machine oil pipe (32) is connected to hollow oil duct (12), the A interface of solenoid valve (27), electronic oil pump (36) simultaneously Oil outlet, a pressure maintaining valve is installed on machine oil pipe (32)；When electromagnetic valve coil (30) is powered, spool (29) is in closing electromagnetism The A interface of valve and the position of B interface, when electromagnetic valve coil (30) powers off, effect of the spool (29) in valve core reseting spring (28) Lower to be in the position for making solenoid valve A orifice B interface, becoming circulating controling circuit (31) is according to motoring condition and driving The intention of member is appropriately energized or disconnects the power circuit of electromagnetic valve coil (30) and electronic oil pump (36).

The course of work of the utility model:

1. in running car and when not entering into band gear sliding state, it is possible to be that speed changer is in neutral gear or clutch When device pedal is operated or brake pedal is operated or gas pedal is operated, becomes circulating controling circuit (31) and disconnect solenoid valve The power circuit of coil (30) and electronic oil pump (36), spool (29) is under the action of valve core reseting spring (28) makes electricity The position of magnet valve (27) A orifice B interface causes the machine oil in solenoid valve (27) and in machine oil pipe (32) to return by B interface It is flow to engine sump tank, so that acting on timing piston (10) without oil pressure, stopping piston (18) in reset spring (17) Under the action of by the second synchronous piston (14) intercept stop except piston hole (20), the second synchronous piston (14) at the same time First synchronous piston (11) are intercepted except the second synchronous piston hole (25), due to stopping the length of piston reset spring (17) It is limited, stop piston (18) that the second synchronous piston hole (25) can't be entered, therefore the second synchronous piston (14) will not enter First synchronous piston hole (21)；At this point, first row valve rocker (5) and second row valve rocker (7) are in first exhaust cam (2) and under the driving of second exhaust cam (4) it shakes, floats platform (13) in the first positioning and the second positioning is floatd the effects of platform (15) Under, also make to become circulation rocker arm (6) in company with shaking, makes the first synchronous piston hole (21), the second synchronous piston hole (25) and stop to live The center line of consent (20) is overlapped；Under driving of the third valve roller bearing (34) in change circulation cam (3), plane is positioned (24) float platform (13) with the first positioning and the second positioning float platform (15) disengage, make alone it is invalid shake, recycle cam when becoming (3) after disengaging with third valve roller bearing (34), become circulation rocker arm (6) under the action of retaining spring (26), it is fixed to make Bit plane (24) keeps floaing platform (13) with the first positioning and the second positioning is floatd, and platform (15) contacts simultaneously adjoint first row valve rocker (5), second row valve rocker (7) shakes, to make the first synchronous piston hole (21), the second synchronous piston hole (25) and stop to live The center line of consent (20) is overlapped.

2. that is, speed changer is not operated in non-neutral gear position, clutch pedal, makes when automobile is in band gear sliding state When dynamic pedal is not operated, gas pedal is not operated, become circulating controling circuit (31) immediately connect electromagnetic valve coil (30) and The power circuit of electronic oil pump (36), spool (29) overcome the elastic force of valve core reseting spring (28) under the action of electromagnetic force, Machine oil is pumped into machine oil pipe (32) and gone forward side by side by the position in closing solenoid valve (27) A interface and B interface, electronic oil pump (36) Enter hollow oil duct (12), then enters oil duct (16) and the first synchronous piston hole (21) through oil hole (9) and push timing piston (10), timing piston (10) pushes the first synchronous piston (11) again, in the first synchronous piston hole (21), the second synchronous piston hole (25) and stop piston hole (20) center line be overlapped when, by the first synchronous piston (11) be pushed into the second synchronous piston hole (25), While it pushing the second synchronous piston (14) to be allowed to enter blocking piston hole (20) simultaneously and while pushing blocking piston (18) and pressing Contracting reset spring (17), being so far completed makes first row valve rocker (5), becomes circulation rocker arm (6), second row valve rocker (7) It is combined together the operation of shake, first row valve rocker (5) at this time, change circulation rocker arm (6), second row valve rocker (7) Both the first admission cam (2), the second admission cam (4) driving under synchronous shake complete to open air inlet in former induction stroke Door, and synchronous under the driving for becoming circulation cam (3) can shake, complete in former compression stroke, the former unlatching exhaust of stroke of rising of splashing The operation of door；Former expansion stroke end when, become circulation cam (3) disengaged with third roller bearing (34), original into When gas stroke, IO Intake Valve Opens cylinder interior suction body；Later, former induction stroke, cylinder pass through inlet valve air inlet；Former compression stroke cylinder It is vented by exhaust valve；Former expansion-stroke cylinder passes through exhaust valve air-breathing；Former exhaust stroke, cylinder are vented by exhaust valve；Hair Motivation constantly repeats above-mentioned two-stroke cycle.Automobile engine at this time by automobile driving wheel by transmission system drive under with most Low running resistance and vibration operating；To guarantee that electronic oil pump (33) do not occur overloading phenomenon and guarantee that machine oil pipe (32) are interior Oil pressure stablize, when oil pressure in machine oil pipe (32) is higher than setting machine oil extraction pressure, pressure maintaining valve (34) is opened at once to starting Oil pan draining.

3. when driver, which has cancelled band gear, slides instruction, it may be assumed that or speed changer be in neutral gear or clutch riding boogie board be operated, Or gas pedal is operated or brake pedal is operated, become circulating controling circuit (31) then turn off electromagnetic valve coil (30) and The power circuit of electronic oil pump (36), spool (29) is under the action of reset spring (28) immediately makes solenoid valve (27) A The position of orifice B interface causes the machine oil in solenoid valve (27) and machine oil pipe (32) to be back to by B interface and starts Oil pan, so that acted on timing piston (10) without oil pressure, it is then convex not with change circulation in third roller bearing (34) When taking turns (3) contact, stops piston (18) to release the second synchronous piston (14) under the action of reset spring (17) and stop piston First synchronous piston (11) are also released the second synchronous piston hole (25) by hole (20), at the same time, the second synchronous piston (14)； Due to the limited length of reset spring (17), stop piston (18) that the second synchronous piston hole (25), therefore second can't be entered Synchronous piston (14) will not enter the first synchronous piston hole (21), hereafter, as long as third roller bearing (34) is not followed with change Ring convex wheel (3) contact, the first inlet valve rocker (5), the second inlet valve rocker (7) shake under respective corresponding actuated by cams, Platform (13) is floatd in first positioning and the second positioning is floatd under the action of platform (15), also makes to become circulation rocker arm (6) in company with shake, makes the from face The center line of one synchronous piston hole (21), the second synchronous piston hole (25) and blocking piston hole (20) is overlapped；When third Roller Shaft (34) are held under the driving for becoming circulation cam (3), locating platform (24), which floats with the first positioning, platform (13) and second to be positioned and float platform (15) it disengages, make invalid shake alone.

Claims

1. a kind of automobile engine variable cycle low-resistance Force control system, by cylinder head, camshaft, first row valve rocker, Two exhaust valve rockers become circulation rocker arm, retaining spring, the first roller bearing, the second roller bearing, third roller bearing, timing Piston, the second synchronous piston, stops piston, reset spring, rocker arm shaft, machine oil pipe, solenoid valve, motor at the first synchronous piston Oil pump, pressure maintaining valve become circulating controling circuit composition；It is characterized by: camshaft is convex equipped with first exhaust cam, second exhaust Wheel becomes circulation cam；When the first synchronous piston enters the second synchronous piston hole and the second synchronous piston is pushed to enter blocking piston Kong Hou becomes circulation cam and also starts to drive third roller bearing, shake first row valve when engine original compression stroke starts Arm, second row valve rocker become the corresponding exhaust valve of circulation synchronous rocker shake opening；In expansion stroke, become circulation cam Continue that third roller bearing is driven to make first row valve rocker, second row valve rocker, become circulation synchronous rocker shake opening pair The exhaust valve answered；And it is disengaged close to end of a period time-varying circulation cam with third roller bearing in expansion stroke；First row valve First roller bearing is installed on rocker arm and is equipped with first and positions float platform, oil duct, the first synchronous piston hole, the first synchronous piston hole The oil hole being connected on oil duct and rocker arm shaft is equipped with timing piston and the first synchronous piston in the first synchronous piston hole；Second Second roller bearing is installed on exhaust valve rocker and is equipped with second and positions the platform that floats, stop piston hole, stops installation in piston hole Have and stops piston and reset spring；Become on circulation rocker arm and third roller bearing is installed and synchronizes work equipped with positioning plane, second Consent installs the second synchronous piston in the second synchronous piston hole；Become between circulation rocker arm and cylinder head and retaining spring is installed, it is fixed One end of position spring heads on change circulation rocker arm, the other end heads on cylinder head；First row valve rocker, becomes second row valve rocker Circulation rocker arm is all mounted on rocker arm shaft, and installation, which is matched, is combined into clearance fit, oil duct junction and rocker arm shaft in first row valve rocker On oilhole it is opposite；Machine oil pipe is connected to the A interface of hollow oil duct, solenoid valve, the oil outlet of electronic oil pump on rocker arm shaft, A pressure maintaining valve is mounted on machine oil pipe；Change circulating controling circuit controls leading for the power circuit of solenoid valve and electronic oil pump On-off is opened.