CN201165888Y - Motor vehicle engine structure - Google Patents
Motor vehicle engine structure Download PDFInfo
- Publication number
- CN201165888Y CN201165888Y CNU2008200975054U CN200820097505U CN201165888Y CN 201165888 Y CN201165888 Y CN 201165888Y CN U2008200975054 U CNU2008200975054 U CN U2008200975054U CN 200820097505 U CN200820097505 U CN 200820097505U CN 201165888 Y CN201165888 Y CN 201165888Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- motor
- motor vehicle
- valve
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003756 stirring Methods 0.000 claims description 12
- 230000003139 buffering effect Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 description 14
- 238000010304 firing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Valve Device For Special Equipments (AREA)
Abstract
Disclosed is a motor vehicle engine structure, which comprises a cylinder cover (1), a cam (2), a valve rod (3), a top barrel (4) of the valve rod and an air inlet and outlet valve (5), the cylinder cover is equipped with an actuating mechanism, the actuating mechanism comprises a sliding sleeve (6), a shifting gear (7) and a gear rack (8), the sliding sleeve (6) is coated on and axially contacted with the top barrel (4) of the valve rod, the gear rack (8) is fixedly arranged on the sliding sleeve (6), the shifting gear (7) is meshed with the gear rack (8), and a shaft of the shifting gear (7) is connected with a driving motor. The motor vehicle engine structure can effectively eliminate reverse drawing of the motor vehicle during running under the state without supplying oil, and enables the motor vehicle to run farther depending on the inertia, thereby achieving the effect of saving energy.
Description
Technical field
The utility model relates to a kind of structure of motor car engine.
Background technique
During motor vehicle starting, keep motor and be called free idling with the stable rotating speed that runs well of minimum speed; And some special state in vehicle driving, as long descending, the engine speed when vehicle is forced to travel by self inertia is called forced idling.Motor is referred to as the idling oil consumption with oil mass under above-mentioned two kinds of operating modes.Oil consumption during free idling is necessary, is used for keeping the minimum running of motor; And the oil consumption during forced idling then there is no need fully, because this moment, vehicle relies on self inertia to force to advance, and need not motor driving power is provided, and fuel feeding at this moment is a kind of great waste.
In fact, from the whole service process of Motor Vehicle, the factor that influences the Motor Vehicle cumulative fuel consumption not only is the fuel feeding problem on opportunity under the different operating modes, and " counter dragging " phenomenon also is a problem that can not be ignored.So-called " counter dragging " be mean engine under situation not out of supply, rely on inertia positive to move ahead, vehicle forms the phenomenon of reverse towing tension to motor, at this moment throttle is in oil return state or idle position.Although (as utilizing engine retard or when braking) counter dragging is positive, necessary under the situation that has, in most cases, this anti-phenomenon of dragging but is unnecessary, passive.It is estimated that the oiling endurance of stepping on the gas when the ordinary people drives a car probably is 4: 1 with unclamping the throttle oil return time ratio of (comprising the time of touching on the brake).If with oil return during this period of time the anti-phenomenon of dragging of motor eliminate, Motor Vehicle will advance fartherly by inertia, thereby can yet be regarded as a kind of method for saving energy, also be a kind of approach of covert fuel-economizing.
The model utility content
Problem to be solved in the utility model provides a kind of in the motor-driven vehicle going process, can realize energy-conservation motor car engine structure by eliminating the anti-phenomenon of dragging of motor.
For solving the problems of the technologies described above, the utility model is to realize by such technological scheme: a kind of motor car engine structure, comprise cylinder cap, cam, valve stem, valve masthead tube and inlet and outlet door, cylinder cap is provided with actuating mechanism, this actuating mechanism comprises sliding sleeve, stirs gear and tooth bar, and sliding sleeve is enclosed within valve stem top tube outward and goes up and axially contact, and tooth bar is installed on the sliding sleeve, stir the wheel and rack engagement, the axle of stirring gear connects drive motor.
The work of motor is divided into air inlet, compression, acting and four circulations of exhaust, and in air inlet and exhaust process, intake valve or exhaust valve are opened, and piston moves smooth and easy in cylinder body, the anti-phenomenon of dragging can not occur; In compression and acting process, because the inlet and outlet door is in closed condition, if motor fuel feeding not, then there is not mixture combustion, if at this moment Motor Vehicle relies on inertia advancing, then piston can hinder because of the malleation in the firing chamber or negative pressure form the rotation of bent axle, the anti-phenomenon of dragging promptly occurs.As seen, if when throttle not fuel feeding and motor be in and instead allow inlet and outlet Men Jun be in opening state when dragging operating mode, just can eliminate malleation or negative pressure in burning, thus the anti-phenomenon of dragging of elimination.Counter drag phenomenon to eliminate after, Motor Vehicle relies on inertia can advance fartherly, thereby realizes energy-conservation.In the utility model, fuel feeding and motor are not in anti-when dragging operating mode when throttle, the Motor Vehicle automatical control system sends instruction rotates motor, motor drives by axle and stirs the gear rotation, sliding sleeve drives valve stem by valve masthead tube and moves a certain distance towards the firing chamber direction, and the inlet and outlet door all can not be closed fully, promptly is in the gas leakage state, eliminate malleation or negative pressure in compression, the working stroke, thereby eliminated counter dragging; When throttle recovery fuel feeding, brake or engine speed were reduced near idling, automatical control system sent the counter-rotating of command control motor, so that valve stem resets.The automatical control system of existing electronic fuel injection engine calculates, judges and send above-mentioned instruction according to the detection information that obtains.
As further improvement in the technical proposal, on valve masthead tube and cam opposing end faces, the buffering pressing plate is installed by damping spring, be used for eliminating the valve clearance.
The beneficial effects of the utility model are: can effectively eliminate counter the drag phenomenon of Motor Vehicle under fuel feeding state not in advancing, make Motor Vehicle rely on inertia to advance fartherly, thereby reach energy-conservation effect.
Description of drawings
Fig. 1 is the schematic representation when valve stem is in reset mode in the utility model.
Fig. 2 is that valve stem moves schematic representation behind the setpoint distance towards the firing chamber direction in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As Fig. 1, shown in Figure 2, motor car engine structure of the present utility model, has cylinder cap 1, cam 2, valve stem 3, valve masthead tube 4 and advancing, exhaust valve 5, cylinder cap 1 is provided with actuating mechanism, this actuating mechanism is by sliding sleeve 6, stir gear 7, tooth bar 8 and drive motor constitute, drive motor does not draw in the drawings, sliding sleeve 6 outer being enclosed within on the valve stem top tube 4, contact by the flange hasp between sliding sleeve 6 and the valve masthead tube 4, the power that sliding sleeve 6 can be applied towards the firing chamber direction valve masthead tube 4, tooth bar 8 is installed on the sliding sleeve 6, stirs gear 7 and tooth bar 8 engagements, and the axle of stirring gear 7 connects drive motor.Sliding sleeve 6 is spacing to be used on the cylinder cap 1 installing in the hole seat of valve spring 12, and tooth bar 8 also can be replaced by the tooth that direct machine is added on sliding sleeve 6 outer walls.The drive signal input interface of drive motor is connected with the signal output interface of electronic fuel injection engine ECU, and ECU calculates, judges and send instruction and come the controlling and driving motor rotation according to the detection information that obtains.
Can find out from Fig. 1, Fig. 2, on valve masthead tube 4 and cam 2 opposing end faces, buffering pressing plate 10 is installed by damping spring 9, damping spring 9 is positioned in the groove on valve masthead tube 4 end faces, and on the sidewall of groove, be provided with step be used for buffering pressing plate 10 is carried out spacing, buffering pressing plate 10 when being depressed into extreme lower position by cam 2 its upper surface concordant with the end face of valve masthead tube 4.When valve stem 3 when the firing chamber direction moves down certain distance, bigger valve clearance can appear between valve masthead tube 4 upper-end surfaces and cam 2, engine noise is increased, at this moment cushion pressing plate 10 and under the effect of damping spring 9, fit with cam 2 all the time, just played the effect of eliminating the valve clearance.Because buffering pressing plate 10 is fitted all the time with cam 2, eliminated noise simultaneously because of existing big spiracular slit to produce.
Working principle: the Motor Vehicle in advancing is when being totally released gas pedal or manual accelerator control, if Motor Vehicle continues to move ahead by inertia, at this moment the complete fuel cut-off of the throttle of electronic fuel injection engine meeting, ECU judges and sends instruction according to these information, make motor rotation, motor makes sliding sleeve 6 by stirring gear 7 with tooth bar 8, top tube 4 moves together, thereby driving valve stem 3 takes place towards the displacement of the setpoint distance of firing chamber direction, order is advanced, exhaust valve 5 all can not cut out when up fully, the firing chamber is in gas leakage state (as shown in Figure 2), piston is last, under just do not have malleation or negative pressure when moving, thereby eliminate motor the counter of vehicle dragged.When throttle recovers fuel feeding, or brake operation occurs, or engine speed is when being reduced near idling, ECU sends instruction and makes motor antiport equal angular, makes to stir gear 7 and drive valve stems 3 reset (as shown in Figure 1) by tooth bar 8, sliding sleeve 6.In this process, Motor Vehicle can be eliminated the unnecessary anti-energy consumption of dragging in the time period of motor fuel cut-off, relies on the inertia farther distance of advancing, and has realized energy-conservation.
Claims (3)
1. a motor car engine is constructed, comprise cylinder cap (1), cam (2), valve stem (3), valve masthead tube (4) and inlet and outlet door (5), it is characterized in that: described cylinder cap (1) is provided with actuating mechanism, this actuating mechanism comprises sliding sleeve (6), stirs gear (7) and tooth bar (8), the outer valve stem top tube (4) that is enclosed within of sliding sleeve (6) is gone up also axially contact, tooth bar (8) is installed on the sliding sleeve (6), stirs gear (7) and tooth bar (8) engagement, and the axle of stirring gear (7) connects drive motor.
2. a kind of motor car engine structure according to claim 1 is characterized in that: by damping spring (9) buffering pressing plate (10) is installed on described valve masthead tube (4) and cam (2) opposing end faces.
3. a kind of motor car engine structure according to claim 1 and 2 is characterized in that: contact by the flange hasp between sliding sleeve (6) and the valve masthead tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200975054U CN201165888Y (en) | 2008-01-18 | 2008-01-18 | Motor vehicle engine structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200975054U CN201165888Y (en) | 2008-01-18 | 2008-01-18 | Motor vehicle engine structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165888Y true CN201165888Y (en) | 2008-12-17 |
Family
ID=40191274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200975054U Expired - Fee Related CN201165888Y (en) | 2008-01-18 | 2008-01-18 | Motor vehicle engine structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165888Y (en) |
-
2008
- 2008-01-18 CN CNU2008200975054U patent/CN201165888Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100220 |