CN203614145U - Air distribution mechanism for engine - Google Patents

Abstract

The utility model discloses an air distribution mechanism for an engine. The air distribution mechanism comprises a first air distribution mechanism and a second air distribution mechanism which can be used in a matched manner, so that the air distribution mechanism is more compact in structure and convenient in arrangement, can achieve the function of stopping parts or all of cylinders of the engine, and has the advantages of high efficiency, fast response, simple structure, long service life and low maintenance cost.

Description

For the distribution device of motor

Technical field

The present invention relates to automotive field, especially relate to a kind of distribution device for motor.

Background technique

Nowadays along with the shortage of petroleum resources and the raising of emission request, increasing motor new technology is applied to mini engine to obtain good emission performance, and cylinder stopping technique is as a kind of concern that is more and more subject to people in numerous motor new technologies.As everyone knows, vehicular petrol engine in the process of moving, most of the time all works under middle small load condition, and from engine MAP, Economy and the emission performance of motor under medium and small load is all poor, if adopt cylinder stopping technique to come in good time closed portion or whole cylinder according to the loading condition of motor, thereby can reduce pumping loss and mechanical loss, can improve again Economy and emission performance in guaranteeing power performance.

Method or the device of realizing engine section cylinder deactivation have had a large amount of products, and are mainly used in large discharge capacity as on V6 and V8 motor, and small displacement engine is less.Existing cylinder stopping technique has a lot of defects, as some is applicable to tappet engine and is not suitable for overhead camshaft engine, some adopts sliding pin linkage structure, the cylinder stopping technique of this employing sliding pin structure generally adopts spring to separate sliding pin, causing thus spring to produce pressure makes to be contacted all the time driving pin by untie-sell, thereby cause lasting sliding friction, affect working life.

Summary of the invention

The utility model is intended to solve at least to a certain extent one of above-mentioned technical problem of the prior art.

For this reason, an object of the present utility model is to propose a kind of distribution device for motor, and this distribution device can be realized the cylinder deactivation function of engine section or whole cylinders, it is high that this distribution device has efficiency, respond fast and simple in structure, long service life, maintenance cost is low.

The distribution device of the motor providing according to model utility, comprising: the first distribution device and the second distribution device, and the first distribution device comprises the first pitman arm shaft, the first master rocker, described the first master rocker rotationally empty set on described the first pitman arm shaft, in described the first master rocker, be formed with the first main oil gallery and the first lock pin chamber along the described master of the axial perforation first rocking arm bi-side of the first pitman arm shaft, described the first main oil gallery is communicated with described the first lock pin chamber, the first auxiliary rocker arm, described the first auxiliary rocker arm rotationally empty set on described the first pitman arm shaft and be close to respectively on the bi-side of described the first master rocker, in described the first auxiliary rocker arm, be formed with the first receiving cavity and the first auxiliary oil channel, described the first auxiliary oil channel is communicated with described the first receiving cavity, and described the first auxiliary rocker arm is used for driving the first valve motion, the first lock pin group, described the first lock pin group comprises two along described the first lock pin being axially spaced apart from each other and is connected to the first elastic component between described two the first lock pins, each described the first lock pin is engaged in the first lock pin chamber hermetically, each described the first lock pin is removable between unlocked position and lock position, described in the time that described the first lock pin is positioned at described unlocked position, the first lock pin entirety is accommodated in described the first lock pin chamber, described in the time that described the first lock pin is positioned at described lock position, a part for the first lock pin is positioned at described lock pin chamber and another part and is positioned at the first receiving cavity of corresponding side, with by the first auxiliary rocker arm of this corresponding side and described the first master rocker locking, the first camshaft, described the first camshaft has the cam for driving described the first master rocker, the second distribution device comprises the second pitman arm shaft, the second master rocker, described the second master rocker rotationally empty set on described the second pitman arm shaft, in described the second master rocker, be formed with the second main oil gallery and the second lock pin chamber along the wherein side of described second master rocker of axial perforation of the second pitman arm shaft, described the second main oil gallery is communicated with described the second lock pin chamber, the second auxiliary rocker arm, described the second auxiliary rocker arm rotationally empty set on described the second pitman arm shaft and be close on a described wherein side of described the second master rocker, in described the second auxiliary rocker arm, be formed with the second receiving cavity and the second auxiliary oil channel, described the second auxiliary oil channel is communicated with described the second receiving cavity, and described the second auxiliary rocker arm is used for driving duaspiracle motion, the second lock pin, described the second lock pin is engaged in described the second lock pin chamber hermetically, described the second lock pin is removable between unlocked position and lock position, described in the time that described the second lock pin is positioned at described unlocked position, the second lock pin entirety is accommodated in described the second lock pin chamber, in the time that described the second lock pin is positioned at described lock position described in the part of the second lock pin be positioned at described the second lock pin chamber and another part be positioned at described the second receiving cavity, with by described the second auxiliary rocker arm and described the second master rocker locking, the second elastic component, described the second elastic component is positioned at described the second lock pin chamber, and one end of described the second elastic component is connected with described the second lock pin, and the other end of described the second elastic component is connected with the diapire in described the second lock pin chamber, and second camshaft, described the second camshaft has the cam for driving described the second master rocker, and the first master rocker of the first distribution device is located between the second auxiliary rocker arm of two the second distribution devices.

According to the utility model embodiment's the distribution device for motor, because the first lock pin is connected with the first elastic component in the first master rocker, can guarantee cylinder deactivation time, the first lock pin is in the first lock pin chamber, can be because engine vibration etc. is former thereby part is stretched out lock pin chamber and by the first master rocker and the first auxiliary rocker arm locking, avoided the sliding friction of the first lock pin and the first auxiliary rocker arm simultaneously.And, need to carry out cylinder deactivation order and when cylinder deactivation at the part or all of cylinder of motor, because the first lock pin is subject to the elastic force effect of oil pressure and the first elastic component simultaneously, therefore speed of response is faster; Because the second lock pin is connected with the second elastic component in the second master rocker, can guarantee cylinder deactivation time, the second lock pin is in the second lock pin chamber, can be because engine vibration etc. is former thereby part is stretched out the second lock pin chamber and by the second master rocker and the second auxiliary rocker arm locking, avoided the sliding friction of the second lock pin and the second auxiliary rocker arm simultaneously.And in the partial cylinders cylinder deactivation process of motor, because the second lock pin is subject to the elastic force effect of oil pressure and the second elastic component simultaneously, therefore speed of response is faster; The first distribution device and the second distribution device can be used in conjunction with, and for example, each cylinder is two and enters two and go out form, i.e. two suction ports and two relief openings, and air inlet side can adopt above-mentioned the first distribution device, and the every cylinder of exhaust side can adopt above-mentioned the second distribution device.The first master rocker of the first distribution device of air inlet side can be located between the second auxiliary rocker arm of two the second distribution devices of exhaust side, and structure is compacter thus, is convenient to arrange.

In addition, according to the utility model embodiment's distribution device, can also there is following additional technical feature:

According to embodiments more of the present utility model, the middle part of described the first elastic component is fixed in described the first lock pin chamber.

According to embodiments more of the present utility model, described the first elastic component is spring, is provided with the first lock pin chamber spiral chute in described the first lock pin chamber, and the middle part of described spring is fixed in described the first lock pin chamber spiral chute.

According to embodiments more of the present utility model, the two ends of described spring extend into respectively in described two the first lock pins and fix with described two the first lock pins respectively.

According to embodiments more of the present utility model, in each described the first lock pin, be provided with the first lock pin spiral chute for fixing described spring.

According to embodiments more of the present utility model, described the first valve is intake valve or exhaust valve.

In addition, according to the utility model embodiment's distribution device, can also there is following additional technical feature:

According to embodiments more of the present utility model, on the diapire in described the second lock pin chamber, be provided with the second lock pin chamber spiral chute, described the second elastic component is spring, one end of described spring is fixed in described the second lock pin chamber spiral chute.

According to embodiments more of the present utility model, in a side relative with described diapire of described the second lock pin, be provided with the second lock pin spiral chute, the other end of described spring is fixed in described the second lock pin spiral chute.

According to embodiments more of the present utility model, described duaspiracle is intake valve or exhaust valve.

Accompanying drawing explanation

Fig. 1 is according to the stereogram of the utility model embodiment's distribution device;

Fig. 2-Fig. 3 is according to the sectional view of the utility model embodiment's distribution device;

Fig. 4 and Fig. 5 are according to the schematic diagram of the master rocker in two different embodiments of the utility model.

Embodiment

Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.

In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term at this practical concrete meaning in new.

This practical new in, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.

Engine body group is the support of motor, is the matrix of connecting rod, distribution device and the assembling of each system.Body group is mainly made up of cylinder block, cylinder head, cylinder head gasket and oil sump etc., oil sump is generally located at the bottom of cylinder block, cylinder head is located at the top of cylinder block, and cylinder head gasket is located between the end face of cylinder block and the bottom surface of cylinder head, for sealing the gap between the two.

Cylinder head forms firing chamber together with cylinder with piston head, the top of firing chamber has suction port and relief opening, and valve mechanism is located in cylinder head and sealing suction port and relief opening.For existing general motor, adopt two valve mechanisms that enter scene 2 more, minority also has the valve mechanism that adopts one-in-and-one-out or three to enter scene 2.

For same motor, generally all there is multiple different operating mode, such as little load, medium and small load, middle load, middle high load and high load etc., when motor is under little load, medium and small load, middle load condition, the power output of motor is relatively low, therefore the air entering in firing chamber can be relatively less, and at motor under middle high load and high load operating mode, the power output of motor is relatively higher, therefore needs more air to enter in firing chamber and more oil inflame.

For urban traffic situation, often there will be jam, motor can be for a long time under little load, medium and small load, middle load condition; oil gas is abundant not in burning Indoor Combustion like this; oil consumption is relatively high, and fuel economy is poor, and noxious gas emission increases greatly simultaneously.Motor cylinder stopping technique can solve this technical problem to a certain extent, under some special operation conditions, for example, when city blocks up, can make a part of cylinder of motor quit work, and remaining a part of cylinder operation is normally moved to maintain motor.

As shown in Figures 1 to 5, comprise the first distribution device 100 and the second distribution device 200 for the distribution device of motor, described the first distribution device 100 and the second distribution device 200 are used in conjunction with.

Describe in detail according to the first distribution device 100 for motor of first aspect present invention embodiment below with reference to Fig. 1-Fig. 4.

As shown in Figure 1-Figure 3, can comprise the first pitman arm shaft 110, the first master rocker 120, the first auxiliary rocker arm 130, the first lock pin group and the first camshaft 170 according to the first distribution device 100 of the embodiment of the present invention.

The first pitman arm shaft 110 can be arranged in cylinder head.The first master rocker 120 rotationally empty set on the first pitman arm shaft 110, in other words, the first master rocker 120 be enclosed within on the first pitman arm shaft 110 and the first master rocker 120 rotatable with respect to the first pitman arm shaft 110.For example, between the first master rocker 120 and the first pitman arm shaft 110, ball bearing can be set, the surface friction drag can reduce like this two and relatively rotate time.

As shown in Figures 2 and 3, in the first master rocker 120, be formed with the first main oil gallery 121 and the first lock pin chamber 122, wherein in the first pitman arm shaft 110, can be formed with main for oil duct, the main oil duct that supplies is connected with the first main oil gallery 121, and hydraulic oil can be exported in the first main oil gallery 121 in the first master rocker 120 by the main oil duct that supplies in the first pitman arm shaft 110.The first lock pin chamber 122 is along the bi-side of axial perforation first master rocker 120 of the first pitman arm shaft 110, for example, in the example of Fig. 2 and Fig. 3, the first lock pin chamber 122 connects respectively left surface and the right flank of the first master rocker 120, and the first main oil gallery 121 and the first lock pin chamber 122 communicate with each other.

The first auxiliary rocker arm 130 rotationally empty set on the first pitman arm shaft 110, in other words, the first auxiliary rocker arm 130 be enclosed within on the first pitman arm shaft 110 and the first auxiliary rocker arm 130 rotatable with respect to the first pitman arm shaft 110, in order to reduce the surface friction drag between the first auxiliary rocker arm 130 and the first pitman arm shaft 110, between the first auxiliary rocker arm 130 and the first pitman arm shaft 110, can be provided with ball bearing, but be not limited to this.

In the example of Fig. 2 and Fig. 3, the first auxiliary rocker arm 130 is two and is close to respectively on the bi-side of the first master rocker 120, in the first auxiliary rocker arm 130, be formed with the first receiving cavity 131 and the first auxiliary oil channel 132, wherein the first auxiliary oil channel 132 is communicated with the first receiving cavity 131, in the first pitman arm shaft 110, can correspondence be formed with auxiliary feed-oil road, auxiliary feed-oil road is communicated with the first auxiliary oil channel 132, thus, hydraulic oil can be exported to the first auxiliary oil channel 132 in the first auxiliary rocker arm 130 by the auxiliary feed-oil road in the first pitman arm shaft 110, the first auxiliary oil channel 132 is supplied with hydraulic oil the first receiving cavity 131 again.

Shown in Fig. 1, the first auxiliary rocker arm 130 is for driving the first valve 140 to move, in other words, the top of one end of the first auxiliary rocker arm 130 and the first valve 140 against, the first auxiliary rocker arm 130 can be around the axis oscillating of the first pitman arm shaft 110, thereby the first auxiliary rocker arm 130 drives the first valve 140 to pump to open or closed chamber along the center line of the first valve 140.

Shown in Fig. 2 and Fig. 3, the first lock pin group comprises two the first lock pins 150 that are spaced apart from each other vertically and is connected to the first elastic component 160 between these two the first lock pins 150, each the first lock pin 150 is all engaged in the first lock pin chamber 122 hermetically, flow into the first lock pin chamber 122 between these two the first lock pins 150 when interior at hydraulic oil from the first main oil gallery 121 of the first master rocker 120 thus, due to the perisporium sealing in the first lock pin 150 and the first lock pin chamber 122, along with fluid constantly enters, the first interior oil pressure in lock pin chamber 122 increases, therefore two the first lock pins 150 by towards each other away from direction motion, first elastic component 160 that simultaneously stretches makes the first elastic component 160 accumulation of energys.

Each the first lock pin 150 is removable between unlocked position and lock position, and in the time that the first lock pin 150 is positioned at unlocked position, the first lock pin 150 entirety are accommodated in the first lock pin chamber 122, as shown in Figure 2.In the time that the first lock pin 150 is positioned at lock position a part for the first lock pin 150 be positioned at the first lock pin chamber 122 and another part be positioned at the first receiving cavity 131 of corresponding side, with by the first auxiliary rocker arm 130 of corresponding side and the first master rocker 120 lockings, as shown in Figure 3.

Particularly, main oil duct and the auxiliary feed-oil road of supplying in the first pitman arm shaft 110 can be by the turnover of one or more electromagnetic valve fluid.In the time that cylinder is normally worked, solenoid valve can be controlled main the supply oil duct of hydraulic oil from the first pitman arm shaft 110, the first main oil gallery 121 of the first master rocker 120 enters into the first lock pin chamber 122 in the first master rocker 120, the first interior oil pressure in lock pin chamber 122 increases, hydraulic oil by promote two the first lock pins 150 towards each other away from direction motion, it is each the first lock pin 150 all moves to a part and be positioned at the first lock pin chamber 122 and another part and be positioned at the first receiving cavity 131 lock position (as shown in Figure 3) from being accommodated in unlocked position (as shown in Figure 2) in the first lock pin chamber 122 completely, thereby two the first auxiliary rocker arms 130 and the first master rocker 120 lockings are integrated, the first master rocker 120 is by its swing of actuated by cams of the first camshaft 170, the first master rocker 120 and then two the first auxiliary rocker arms 130 of drive swing, two the first auxiliary rocker arms 130 drive respectively the first valve 140 separately to pump, thereby periodically open or close firing chamber.

In this process, because two the first lock pins 150 deviate from motion, therefore the first elastic component 160 is in extended state, and the first elastic component 160 is laid in elastic potential energy.Simultaneously, because a part for each the first lock pin 150 is positioned at the first corresponding receiving cavity 131, therefore the part hydraulic oil in the first receiving cavity 131 can flow out by the first auxiliary oil channel 132 of the first auxiliary rocker arm 130 and the auxiliary feed-oil road of the first pitman arm shaft 110.

At motor during in medium and small load or little load, can be by electromagnetic valve hydraulic oil successively from the auxiliary feed-oil road of the first pitman arm shaft 110, the first auxiliary oil channel 132 of the first auxiliary rocker arm 130 is to the interior fuel feeding of the first receiving cavity 131 of the first auxiliary rocker arm 130, cuts off the fuel feeding in the first lock pin chamber 122 simultaneously.Thus, along with fluid constantly enters the first receiving cavity 131, the interior oil pressure of the first receiving cavity 131 increases, while is due to the pulling force effect of the first elastic component 160, thereby under the effect aspect oil pressure and elastic force two, the first lock pin 150 will move from lock position to unlocked position until two the first lock pins 150 are all accommodated in the first lock pin chamber 122, thereby two the first auxiliary rocker arms 130 and the first master rocker 120 releases, now the first camshaft 170 drives the empty pendulum of the first master rocker 120, the first auxiliary rocker arm 130 and the first valve 140 are all motionless, and cylinder is in closed condition.

Should be understood that, the first valve 140 that above-mentioned the first auxiliary rocker arm 130 drives can be intake valve, can certainly be exhaust valve, in other words, air inlet side can be applied to according to the first distribution device 100 of the embodiment of the present invention, exhaust side can certainly be applied to.Or, this first distribution device 100 can be applied to air inlet side and exhaust side simultaneously, thereby at motor under the operating modes such as middling speed load or low speed load, can intelligent cylinder deactivation, enter in the first receiving cavity 131 by controlling hydraulic oil, thereby promote that the first lock pin 150 is accommodated in the first lock pin chamber 122 so that the first auxiliary rocker arm 130 and the first master rocker 120 releases, and then intake valve and exhaust valve be all in closed condition, its corresponding cylinder does not participate in work by combustion.

Thus, according to first distribution device 100 for motor of the embodiment of the present invention, because the first lock pin 150 is connected with the first elastic component 160 in the first master rocker 120, can guarantee cylinder deactivation time, the first lock pin 150 is in the first lock pin chamber 122, can be because engine vibration etc. is former thereby part is stretched out the first lock pin chamber 122 and by the first master rocker 120 and the first auxiliary rocker arm 130 lockings, avoided the sliding friction of the first lock pin 150 and the first auxiliary rocker arm 130 simultaneously.And, need to carry out cylinder deactivation order and when cylinder deactivation at the part or all of cylinder of motor, because the first lock pin 150 is subject to the elastic force effect of oil pressure and the first elastic component 160 simultaneously, therefore speed of response is faster.

According to some embodiments of the present invention, as shown in Figure 4, the middle part of the first elastic component 160 is fixed in the first lock pin chamber 122, the two end part of the first elastic component 160 can free-extension, can prevent that thus the first elastic component 160 from reversing, misplacing in course of action, affect the normal work of cylinder or cylinder deactivation action.

Alternatively, the first elastic component 160 can be spring, is provided with lock pin chamber spiral chute in the first lock pin chamber 122, and the middle part of spring is fixed in the spiral chute of lock pin chamber.Thus, convenient fixing, firm.But, should be appreciated that the means of fixation of the first elastic component 160 in the first lock pin chamber 122 is not limited to this, for example the middle part of the first elastic component 160 also can be fixed in the first lock pin chamber 122 by pin or alternate manner.

The means of fixation of spring and the first lock pin 150 has multiple.For example, the two ends of spring extend into respectively in two the first lock pins 150 and respectively and fix with two the first lock pins 150.Particularly, in each the first lock pin 150, be provided with the first lock pin spiral chute 190 for fixing spring.Thus, convenient fixing, firm.But, should be appreciated that the means of fixation of the first elastic component 160 and the first lock pin 150 is not limited to this, for example the first elastic component 160 also can be fixed in the first lock pin 150 by pin or alternate manner.

Describe in detail according to the second distribution device 200 for motor of second aspect present invention embodiment below with reference to Fig. 1-Fig. 3, Fig. 5.

As shown in Figure 1-Figure 3, can comprise the second pitman arm shaft 210, the second master rocker 220, the second auxiliary rocker arm 230, the second lock pin 250, the second elastic component 260 and the second camshaft 270 according to the second distribution device 200 of the embodiment of the present invention.

The second pitman arm shaft 210 can be arranged in cylinder head.The second master rocker 220 rotationally empty set on the second pitman arm shaft 210, in other words, the second master rocker 220 be enclosed within on the second pitman arm shaft 210 and the second master rocker 220 rotatable with respect to the second pitman arm shaft 210.For example, between the second master rocker 220 and the second pitman arm shaft 210, ball bearing can be set, the surface friction drag can reduce like this two and relatively rotate time.

As shown in Figures 2 and 3, in the second master rocker 220, be formed with the second main oil gallery 221 and the second lock pin chamber 222, wherein in the second pitman arm shaft 210, can be formed with main for oil duct, the main oil duct that supplies is connected with the second main oil gallery 221, and hydraulic oil can be exported in the second main oil gallery 221 in the second master rocker 220 by the main oil duct that supplies in the second pitman arm shaft 210.The second lock pin chamber 222 is along a wherein side of axial perforation second master rocker 220 of the second pitman arm shaft 210, and for example the second lock pin chamber 222 can be blind hole structure, and the second main oil gallery 221 and the second lock pin chamber 222 communicate with each other.

The second auxiliary rocker arm 230 rotationally empty set on the second pitman arm shaft 210, in other words, the second auxiliary rocker arm 230 be enclosed within on the second pitman arm shaft 210 and the second auxiliary rocker arm 230 rotatable with respect to the second pitman arm shaft 210, in order to reduce the surface friction drag between the second auxiliary rocker arm 230 and the second pitman arm shaft 210, between the second auxiliary rocker arm 230 and the second pitman arm shaft 210, can be provided with ball bearing, but be not limited to this.

In the example of Fig. 2 and Fig. 3, the second auxiliary rocker arm 230 and the second master rocker 220 are one to one, the second auxiliary rocker arm 230 is close on a described wherein side of the second master rocker 220, in the second auxiliary rocker arm 230, be formed with the second receiving cavity 231 and the second auxiliary oil channel 232, wherein the second auxiliary oil channel 232 is communicated with the second receiving cavity 231, in the second pitman arm shaft 210, can correspondence be formed with auxiliary feed-oil road, auxiliary feed-oil road is communicated with the second auxiliary oil channel 232, thus, hydraulic oil can be exported to the second auxiliary oil channel 232 in the second auxiliary rocker arm 230 by the auxiliary feed-oil road in the second pitman arm shaft 210, the second auxiliary oil channel 232 is supplied with hydraulic oil the second receiving cavity 231 again.

Shown in Fig. 1, the second auxiliary rocker arm 230 is for driving duaspiracle 240 to move, in other words, the top of one end of the second auxiliary rocker arm 230 and duaspiracle 240 against, the second auxiliary rocker arm 230 can be around the axis oscillating of the second pitman arm shaft 210, thereby the second auxiliary rocker arm 230 drives duaspiracle 240 to pump along the center line of duaspiracle 240, thereby opens or closed chamber.

Shown in Fig. 2 and Fig. 3, the second lock pin 250 is engaged in the second lock pin chamber 222 hermetically, the second elastic component 260 is positioned at the second lock pin chamber 222, one end of the second elastic component 260 is connected with the second lock pin 250, the other end of the second elastic component 260 is connected with the diapire in the second lock pin chamber 222, and this diapire is the wall relative with the second lock pin 250 in the second lock pin chamber 222.Flow into the second lock pin chamber 222 when interior at hydraulic oil from the second main oil gallery 221 of the second master rocker 220 thus, due to the perisporium sealing in the second lock pin 250 and the second lock pin chamber 222, along with fluid constantly enters, the second interior oil pressure in lock pin chamber 222 increases, therefore the second lock pin 250 is by the direction motion to the second auxiliary rocker arm 230, and the second tensile elasticity part 260 makes the second elastic component 260 accumulation of energys simultaneously.

The second lock pin 250 is removable between unlocked position and lock position, and in the time that the second lock pin 250 is positioned at unlocked position, the second lock pin 250 entirety are accommodated in the second lock pin chamber 222, as shown in Figure 2.In the time that the second lock pin 250 is positioned at lock position a part for the second lock pin 250 be positioned at the second lock pin chamber 222 and another part be positioned at the second receiving cavity 231, with by the second auxiliary rocker arm 230 and the second master rocker 220 lockings, as shown in Figure 3.

Particularly, main oil duct and the auxiliary feed-oil road of supplying in the second pitman arm shaft 210 can be by the turnover of one or more electromagnetic valve fluid.In the time that cylinder is normally worked, solenoid valve can be controlled main the supply oil duct of hydraulic oil from the second pitman arm shaft 210, the second main oil gallery 221 of the second master rocker 220 enters into the second lock pin chamber 222 in the second master rocker 220, the second interior oil pressure in lock pin chamber 222 increases, hydraulic oil will promote the direction motion of the second lock pin 250 to the second auxiliary rocker arm 230, the second lock pin 250 moves to a part and is positioned at the second lock pin chamber 222 and another part and is positioned at the lock position (as shown in Figure 3) of the second receiving cavity 231 from being accommodated in unlocked position (as shown in Figure 2) in the second lock pin chamber 222 completely, thereby the second auxiliary rocker arm 230 and the second master rocker 220 lockings are integrated, the second master rocker 220 is by its swing of actuated by cams of the second camshaft 270, the second master rocker 220 and then drive the second auxiliary rocker arm 230 swing, the second auxiliary rocker arm 230 drives duaspiracle 240 to pump, thereby periodically open or close firing chamber.

In this process, because the second lock pin 250 moves to the second auxiliary rocker arm 230, therefore the second elastic component 260 is in extended state, and the second elastic component 260 is laid in elastic potential energy.Meanwhile, because a part for the second lock pin 250 is positioned at the second receiving cavity 231, therefore the part hydraulic oil in the second receiving cavity 231 can flow out by the second auxiliary oil channel 232 of the second auxiliary rocker arm 230 and the auxiliary feed-oil road of the second pitman arm shaft 210.

At motor during in medium and small load or little load, can be by electromagnetic valve hydraulic oil successively from the auxiliary feed-oil road of the second pitman arm shaft 210, the second auxiliary oil channel 232 of the second auxiliary rocker arm 230 is to the interior fuel feeding of the second receiving cavity 231 of the second auxiliary rocker arm 230, cuts off the fuel feeding in the second lock pin chamber 222 simultaneously.Thus, along with fluid constantly enters the second receiving cavity 231, the interior oil pressure of the second receiving cavity 231 increases, while is due to the pulling force effect of the second elastic component 260, thereby under the effect aspect oil pressure and elastic force two, the second lock pin 250 will move from lock position to unlocked position until the second lock pin 250 entirety are accommodated in the second lock pin chamber 222, thereby the second auxiliary rocker arm 230 and the second master rocker 220 releases, now the second camshaft 270 drives the empty pendulum of the second master rocker 220, the second auxiliary rocker arm 230 and duaspiracle 240 are all motionless, and cylinder is in closed condition.

Should be understood that, the duaspiracle 240 that above-mentioned the second auxiliary rocker arm 230 drives can be intake valve, can certainly be exhaust valve, in other words, air inlet side can be applied to according to the second distribution device 200 of the embodiment of the present invention, exhaust side can certainly be applied to.Or, this second distribution device 200 can be applied to air inlet side and exhaust side simultaneously, thereby at motor under the operating modes such as middling speed load or low speed load, can intelligent cylinder deactivation, enter in the second receiving cavity 231 by controlling hydraulic oil, thereby promote that the second lock pin 250 is accommodated in the second lock pin chamber 222 so that the second auxiliary rocker arm 230 and the second master rocker 220 releases, and then intake valve and exhaust valve be all in closed condition, its corresponding cylinder does not participate in work by combustion.

Thus, according to second distribution device 200 for motor of the embodiment of the present invention, because the second lock pin 250 is connected with the second elastic component 260 in the second master rocker 220, can guarantee cylinder deactivation time, the second lock pin 250 is in the second lock pin chamber 222, can be because engine vibration etc. is former thereby part is stretched out the second lock pin chamber 222 and by the second master rocker 220 and the second auxiliary rocker arm 230 lockings, avoided the sliding friction of the second lock pin 250 and the second auxiliary rocker arm 230 simultaneously.And in the partial cylinders cylinder deactivation process of motor, because the second lock pin 250 is subject to the elastic force effect of oil pressure and the second elastic component 260 simultaneously, therefore speed of response is faster.

According to some embodiments of the present invention, as shown in Figure 5, on the diapire in the second lock pin chamber 222, be provided with the second lock pin chamber spiral chute 280, elastic component 260 can be spring, and one end of spring is fixed on the second lock pin chamber spiral chute interior 280.Can prevent that thus spring from reversing, misplacing in course of action, affect the normal work of cylinder or cylinder deactivation action, simultaneously convenient fixing, firm.But, should be appreciated that the means of fixation of the second elastic component 260 in the second lock pin chamber 222 is not limited to this, for example one end of the second elastic component 260 also can be fixed in the second lock pin chamber 222 by pin or alternate manner.

The means of fixation of spring and the second lock pin 250 has multiple.For example, on the relative wall of the diapire with the second lock pin chamber 222 of the second lock pin 250, be provided with the second lock pin spiral chute 290, the other end of spring is fixed in the second lock pin spiral chute 290.Thus, convenient fixing, firm.But, should be appreciated that the means of fixation of the second elastic component 260 and the second lock pin 250 is not limited to this, for example the second elastic component 260 also can be fixed in the second lock pin 250 by pin or alternate manner.

Be to be understood that, for the ordinary skill in the art, reading on the basis of the above-mentioned disclosure of specification, obviously the first distribution device 100 in first aspect embodiment can be combined with the second distribution device 200 in second aspect embodiment.

For example, each cylinder is two and enters two and go out form, i.e. two suction ports and two relief openings, air inlet side can adopt the first distribution device 100 of above-mentioned first aspect embodiment, and the every cylinder of exhaust side can adopt the second distribution device 200 of two above-mentioned second aspect embodiments.The first master rocker 120 of the first distribution device 100 of air inlet side can be located between the second auxiliary rocker arm 230 of two the second distribution devices 200 of exhaust side, and structure is compacter thus, is convenient to arrange.

Wherein, the first distribution device 100 of air inlet side and the second distribution device 200 of exhaust side can be driven by same the first camshaft 170 or the second camshaft 270, adopt the setting type of Single Over Head Camshaft, and this spline structure is compacter.But, the present invention is not limited to this, and the first distribution device 100 of air inlet side and the second distribution device 200 of exhaust side can, respectively by a camshaft actuated, adopt the setting type of Dual Over Head Camshaft, the structure of every camshaft is relatively simple like this, is convenient to processing.

In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiments or example.In addition, those skilled in the art can engage the different embodiments that describe in this specification or example and combine.

Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as that those of ordinary skill in the art can change above-described embodiment in scope of the present utility model to this practical new restriction, modification, replacement and modification.

Claims (9)

1. for a distribution device for motor, it is characterized in that, comprise the first distribution device and the second distribution device, the first distribution device comprises:

The first pitman arm shaft;

The first master rocker, described the first master rocker rotationally empty set on described the first pitman arm shaft, in described the first master rocker, be formed with the first main oil gallery and the first lock pin chamber along the described first master rocker bi-side of axial perforation of the first pitman arm shaft, described the first main oil gallery is communicated with described the first lock pin chamber;

The first auxiliary rocker arm, described the first auxiliary rocker arm rotationally empty set on described the first pitman arm shaft and be close to respectively on the bi-side of described the first master rocker, in described the first auxiliary rocker arm, be formed with the first receiving cavity and the first auxiliary oil channel, described the first auxiliary oil channel is communicated with described the first receiving cavity;

The first lock pin group, described the first lock pin group comprises two along described the first lock pin being axially spaced apart from each other and is connected to the first elastic component between described two the first lock pins, each described the first lock pin is engaged in the first lock pin chamber hermetically, each described the first lock pin is removable between unlocked position and lock position, described in the time that described the first lock pin is positioned at described unlocked position, the first lock pin entirety is accommodated in described the first lock pin chamber, described in the time that described the first lock pin is positioned at described lock position, a part for the first lock pin is positioned at described lock pin chamber and another part and is positioned at the first receiving cavity of corresponding side, with by the first auxiliary rocker arm of this corresponding side and described the first master rocker locking,

The first camshaft, described the first camshaft has the cam for driving described the first master rocker;

The second distribution device comprises:

The second pitman arm shaft;

The second master rocker, described the second master rocker rotationally empty set on described the second pitman arm shaft, in described the second master rocker, be formed with the second main oil gallery and the second lock pin chamber along the wherein side of described second master rocker of axial perforation of the second pitman arm shaft, described the second main oil gallery is communicated with described the second lock pin chamber;

The second auxiliary rocker arm, described the second auxiliary rocker arm rotationally empty set on described the second pitman arm shaft and be close on a described wherein side of described the second master rocker, in described the second auxiliary rocker arm, be formed with the second receiving cavity and the second auxiliary oil channel, described the second auxiliary oil channel is communicated with described the second receiving cavity;

The second lock pin, described the second lock pin is engaged in described the second lock pin chamber hermetically, described the second lock pin is removable between unlocked position and lock position, described in the time that described the second lock pin is positioned at described unlocked position, the second lock pin entirety is accommodated in described the second lock pin chamber, in the time that described the second lock pin is positioned at described lock position described in the part of the second lock pin be positioned at described the second lock pin chamber and another part be positioned at described the second receiving cavity, with by described the second auxiliary rocker arm and described the second master rocker locking;

The second elastic component, described the second elastic component is positioned at described the second lock pin chamber, and one end of described the second elastic component is connected with described the second lock pin, and the other end of described the second elastic component is connected with the diapire in described the second lock pin chamber; And

The second camshaft, described the second camshaft has the cam for driving described the second master rocker;

The first master rocker of the first distribution device is located between the second auxiliary rocker arm of two the second distribution devices.

2. the distribution device for motor according to claim 1, is characterized in that, the middle part of described the first elastic component is fixed in described the first lock pin chamber.

3. the distribution device for motor according to claim 2, is characterized in that, described the first elastic component is spring, is provided with the first lock pin chamber spiral chute in described the first lock pin chamber, and the middle part of described spring is fixed in described the first lock pin chamber spiral chute.

4. the distribution device for motor according to claim 3, is characterized in that, the two ends of described spring extend into respectively in described two the first lock pins and fix with described two the first lock pins respectively.

5. the distribution device for motor according to claim 4, is characterized in that, is provided with the first lock pin spiral chute for fixing described spring in each described the first lock pin.

6. the distribution device for motor according to claim 1, is characterized in that, also comprises the first valve, and described the first valve is intake valve or exhaust valve.

7. the distribution device for motor according to claim 1, it is characterized in that, on the diapire in described the second lock pin chamber, be provided with the second lock pin chamber spiral chute, described the second elastic component is spring, and one end of described spring is fixed in described the second lock pin chamber spiral chute.

8. the distribution device for motor according to claim 7, is characterized in that, is provided with the second lock pin spiral chute on described the second lock pin, and the other end of described spring is fixed in described the second lock pin spiral chute.

9. the distribution device for motor according to claim 1, is characterized in that, also comprises duaspiracle, and described duaspiracle is intake valve or exhaust valve.

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