CN202250390U - Internal combustion engine with multi-link piston-crank mechanism - Google Patents
Internal combustion engine with multi-link piston-crank mechanism Download PDFInfo
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- CN202250390U CN202250390U CN2011201665983U CN201120166598U CN202250390U CN 202250390 U CN202250390 U CN 202250390U CN 2011201665983 U CN2011201665983 U CN 2011201665983U CN 201120166598 U CN201120166598 U CN 201120166598U CN 202250390 U CN202250390 U CN 202250390U
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Abstract
The utility model provides an internal combustion engine with a multi-link piston-crank mechanism. If whole height of the internal combustion engine in a multi-link mechanism is reduced and oil surface height is increased, and interference is produced between engine oil in an oil pan and the shaft side end part (30) of a control lever link (an auxiliary link) (26), thus a frictional force is increased. The multi-link mechanism connects a piston (12) with a crank pin (17) of a crank shaft (16) by utilizing multiple links (21 and 22), and a control shaft (an auxiliary shaft) (27) below the crank shaft (16) is connected with a lower link (21) by utilizing the control level link (26). A separation cup (40) which surrounds the shaft side end part (30) of the control level link (26) from downside is arranged, so as to inhibit interference produced between the engine oil in the oil pan and the shaft side end part (30) of the control level link (26) which is arranged on the control eccentric shaft part (28) of the control shaft (27) in a swinging way.
Description
Technical field
The utility model relates to a kind of internal-combustion engine with many linkage types piston-crank mechanism.
Background technique
In patent documentation 1; Put down in writing a kind of internal-combustion engine, it utilizes many linkage types piston-crank mechanism (below, abbreviate " multi-connecting-rod mechanism " as); Can change piston upper dead center position and then change compression ratio of internal-combustion engine; This multi-connecting-rod mechanism utilizes between the crank pin of a plurality of connecting rods with piston and crankshaft and connects, and, utilize auxiliary connecting rod (control link) that one in above-mentioned a plurality of connecting rods is linked with the auxiliary axis (Control Shaft) that is configured in the crankshaft below.
Patent documentation 1: TOHKEMY 2003-322036 communique
The model utility content
In above-mentioned multi-connecting-rod mechanism, the internal-combustion engine of the single linkage type piston-crank mechanism of piston and crank pin binding (below, abbreviate " single linkage mechanism " as) is compared with using by a connecting rod (connecting rod); Below crankshaft, there are parts such as auxiliary axis and auxiliary connecting rod; Therefore, produce following problems, promptly; The trend that exists the whole internal-combustion engine height to uprise is to the lift-launch property reduction of vehicle.
If the position in order to suppress the whole internal-combustion engine height lower with food tray promotes to the top, the fuel head that then accumulates in the engine oil in the food tray rises.Therefore, in the internal-combustion engine actual act, be accompanied by the rotation of crankshaft and the axle side end of the auxiliary connecting rod swung produces interference with pasta; Be submerged under the pasta, frictional force increases owing to stir engine oil, in addition; Produce the situation that auxiliary connecting rod bounces pasta; Produce bubble, make air sneak in the oil, thereby might cause greasy property to reduce.
The utility model is exactly In view of the foregoing to propose; It provides a kind of internal-combustion engine with many linkage types piston-crank mechanism; It utilizes many connecting rods that the piston of internal-combustion engine and the crank pin of crankshaft are connected; And utilize auxiliary connecting rod will be configured in the auxiliary axis of crankshaft below and a binding in above-mentioned a plurality of connecting rod; It is characterized in that, be provided with the separation cup (baffle cup) of the part of the axle side end that surrounds above-mentioned auxiliary connecting rod at least, produce with the engine oil in axle side end that suppresses to be installed in swingably the auxiliary connecting rod on the above-mentioned auxiliary axis and the food tray that accumulates in above-mentioned auxiliary axis below and interfere.
The effect of model utility
According to the utility model; Even the influence of shortening owing to the whole internal-combustion engine height in the multi-connecting-rod mechanism makes fuel head become than higher position; Also can utilize and separate cup; The axle side end of the auxiliary connecting rod of high speed swinging produces interference with the engine oil that accumulates in the food tray when being suppressed at the internal-combustion engine actual act, increases thereby suppress frictional force.Thus, can not produce the frictional force increase and shorten the whole internal-combustion engine height in the multi-connecting-rod mechanism, improve vehicle boarded property.
Description of drawings
Fig. 1 is the sectional drawing of the related internal-combustion engine with many linkage types piston-crank mechanism of the 1st embodiment of expression the utility model.
Fig. 2 is near above-mentioned the 1st embodiment's of expression the oblique drawing of control link.
Fig. 3 is near above-mentioned the 1st embodiment's of expression the front view of control link.
Fig. 4 is near above-mentioned the 1st embodiment's of expression the sectional drawing of control link.
Fig. 5 is the oblique drawing of above-mentioned the 1st embodiment's of expression separation cup.
Fig. 6 is the plan view of the separation cup of Fig. 5.
Fig. 7 is the sectional drawing of the related separation cup of the 2nd embodiment of expression the utility model.
Fig. 8 is the sectional drawing of the related separation cup of the 3rd embodiment of expression the utility model.
Fig. 9 is near the side view the control link of the expression internal-combustion engine of having used the related separation cup of the 4th embodiment of the utility model.
Figure 10 is the oblique drawing of the related separation cup of above-mentioned the 4th embodiment of expression.
Figure 11 is the oblique drawing of the related separation cup of the 5th embodiment of expression the utility model.
Figure 12 is near the sectional drawing of control link of the related separation cup of the 6th embodiment of expression the utility model.
Figure 13 is near the sectional drawing of control link of the related separation cup of the 7th embodiment of expression the utility model.
Figure 14 is the sectional drawing under the state of high compression ratio (a) and low compression ratio (b) of the related separation cup of the 7th embodiment of expression the utility model.
Figure 15 is the section corresponding diagram of the related separation cup of above-mentioned the 7th embodiment of expression.
Embodiment
Below, with reference to accompanying drawing, the preferred embodiment of the utility model is described.Fig. 1～Fig. 6 shows the 1st embodiment who in 4 cylinder internal-combustion engines in upright arrangement, uses the utility model.With reference to Fig. 1, on cylinder body 11, form cylinder 13, it is the piston 12 of chimeric each cylinder reciprocatingly.At the fixing food tray top 14 of the lower surface of this cylinder body 11, the lip part 15A of the food tray bottom 15 of shape at the fixing shallow end of lower surface on this food tray top 14.Utilize above-mentioned food tray top 14 and food tray bottom 15, constitute the food tray that accumulates engine oil.Here, extend in the roughly whole length of internal-combustion engine fore-and-aft direction in a big way food tray bottom 15, forms the so-called flat food tray that does not have dark bottom, with when suppressing the whole internal-combustion engine height, guarantees the oil mass of engine oil.
Variable compression ratio has been utilized the many linkage types piston-crank mechanism that the crank pin 17 of piston 12 and crankshaft 16 is connected through a plurality of connecting rods 21,22; Its basic structure is through above-mentioned TOHKEMY 2003-322036 communique and by known; Therefore, only carry out simple declaration here.This mechanism has: lower link 21, and it is rotatably installed on the crank pin 17 of crankshaft 16; Last connecting rod 22, its upper end is rotatably installed on the piston 12 via wrist pin 23, and the lower end utilizes the 1st connection pin 24 and is rotatably installed on the lower link 21; And control link (auxiliary connecting rod) 26, its upper end portion rotatably links with lower link 21 via the 2nd connection pin 25.
In addition, below crankshaft 16, Control Shaft (auxiliary axis) 27 rotatably is supported on cylinder body 11 sides.On this Control Shaft 27, be provided with the control eccentric axial portion 28 eccentric with respect to the rotating center of Control Shaft 27 to each cylinder, on this control eccentric axial portion 28, the axle side end 30 of control link 26 lower ends is installed rotatably.In addition; According to shown in Figure 4; For can after be assembled on the control eccentric axial portion 28, this side end 30 becomes the structure that cuts in half, a part of 30A and the cap 30B that clamping is controlled the main body of eccentric axial portion 28 utilizes bolt 30C to tighten together and fixes.
When the internal-combustion engine actual act; Be accompanied by the rotation of crankshaft 16; Via lower link 21 and go up connecting rod 22 and piston 12 goes up and down, and with the variation of the posture of lower link 21 accordingly, control link 26 is a fulcrum and in predetermined range, swinging with control eccentric axial portion 28.
On Control Shaft 27, link variable compression ratio actuators 33 such as motor is arranged.In the present embodiment, this variable compression ratio actuator 33 is horizontally installed on the sidewall on food tray top 14, via the arm (omitting diagram) that is arranged on bar on the Control Shaft 27 (omitting diagram) or runs through the sidewall on food tray top 14 wait and with Control Shaft 27 bindings.Through utilizing the rotational position of this actuator 33 change Control Shafts 27, thereby make change in location, make the posture change of lower link 21 as the axle side end 30 of the swing fulcrum of control link 26.Thus, comprise the piston stroke characteristic variations of piston upper dead center position and piston lower dead point position, make compression ratio of internal-combustion engine change.
The main shaft neck part of crankshaft 16 is rotatably supported by the partition board portion 35 of cylinder body 11 and the main bearing cap 36 that is installed in partition board portion 35 lower surfaces.In addition, as shown in Figure 2, the collar 27A of Control Shaft 27 is rotatably supported by main bearing cap 36 and the supplementary bearing lid 37 that is installed in main bearing cap 36 lower surfaces.Here, Control Shaft 27 be configured in crankshaft 16 under the position, promptly along the axial lower position of cylinder.Therefore; The general a pair of regulation bolt 38 that utilization runs through two bearing caps 36,37 and screws togather with partition board portion 35; Can on one side two bearing caps 36,37 be fixed on the cylinder body side, guarantee the two shaft bearing rigidity partly of crankshaft 16 and Control Shaft 27 on one side.As implied above, through Control Shaft 27 is configured in crankshaft 16 under on the position, thereby realize the sharing of fixing bolt 38, realize minimizing and lightweight, the simplification of number of components.
And; As the structure of wanting portion that forms present embodiment; Be rotatably installed in the axle side end 30 of the control link 26 on the Control Shaft 27; Be provided with the separation cup 40 that stops parts as stirring, it surrounds a side end 30 of control link 26 from the below, produces interference to suppress crankshaft 16 and Control Shaft 27 with the engine oil that accumulates in the food tray of below.
In the present embodiment, forming a plurality of the separation cups 40 that are provided with to each cylinder links through binding beam 41 and is the structure of one.This binding beam 41 is compared wall thickening in order to ensure rigidity intensity with separating cup 40, on the assembly department 42 of the side of 5 main bearing cap 36 with stepped formation, utilizes fixing bolt 43 to fix respectively.It is integrated with a plurality of separation cups 40 to link beam through utilization as implied above, thereby can reduce number of components, and improves assembling operation property.
At the central part of side wall portion 44, be formed with the notch 46 that makes the semicircle shape that Control Shaft 27 runs through with concentric circles.As shown in Figure 3; The upper end position of separating cup 40 is formed at least with the center of the collar 27A of Control Shaft 27 and compares higher position; The lower end position 46A of notch 46 is set at; At least be positioned at the top of lower end position of the axle side end 30 of control link 26, and the lowest positions of the rotating locus of the control eccentric axial portion 28 of displacement is compared with the rotation that is accompanied by Control Shaft 27 lower.
In addition; Owing to be provided with the bar that actuator is used, so like Fig. 5 and shown in Figure 6, on the side wall portion 44 near the 3rd cylinder of the separation cup 40 corresponding (beginning the 2nd separation cup) from the left side of Fig. 6 with the 2nd cylinder in the position between the 2nd cylinder and the 3rd cylinder of Control Shaft 27; Be formed with significantly and be used to avoid produce the opening portion 49 of interfering with above-mentioned bar; Become the structure that omits more than half side wall portion 44, separate cup with other and compare, it is relatively poor to produce the effect of interfering between inhibition and the engine oil.In addition, between the 2nd cylinder that has the bar that actuator uses and the 3rd cylinder, adjacent separation cup 40 is connected through web 47, this web 47 utilizes the bolt in through bolt hole 48 and is fixed on the supplementary bearing lid 37.Thus, rigidity of support improves, and separates that cup 40 can not rock and stably supported.
The axle side end 30 of control link 26 is accompanied by the rotation of crankshaft 16 and swings; And the position that is accompanied by the rotation of Control Shaft 27 and swings fulcrum changes; The size shape of separating cup 40 is set at, does not interfere fully with the movement locus of this side end 30.
In addition; Separate the size shape of cup 40 so long as do not produce to interfere and get final product with the axle side end 30 of control link 26; Be not limited to above-mentioned the 1st embodiment, for example, also can be shown in the 2nd embodiment shown in Fig. 7; The 45A of periphery wall portion of separation cup 40 of the periphery of the axle side end 30 of Coverage Control connecting rod 26 forms with respect to smooth bottom wall portion 50 and the rectangular channel shape that the vertical wall portion 51 of both sides erects vertically.In addition, also can be shown in the 3rd embodiment shown in Fig. 8, the inclined wall portion 52 that forms the both sides among the 45B of periphery wall portion is with respect to bottom wall portion 50, along with towards the top and the dish shape shape of outward inclining.
In addition, in Fig. 9 and the 4th embodiment shown in Figure 10, replace above-mentioned the 1st embodiment's binding beam 41 and use web 54, each bottom of separating the periphery wall portion 45 of cup 40 is connected integratedly.This web 54 utilizes bolt 53 to be fixed on 5 supplementary bearing lids 37.In addition, as shown in Figure 9 in the present embodiment, an axial end of Control Shaft 27 is provided with variable compression ratio actuator 33A.
Because space or design are separated under glass situation of 40 one binding a plurality of and be difficult to beam or the plate of utilizing as noted above, also can shown in the 5th embodiment shown in Figure 11, each be separated cup 40 be individually fixed on the supplementary bearing lid 37.In this example, to separate on the cup 40 at each and to be provided with plate 55 integratedly, this plate 55 utilizes the bolt of through bolt hole 55A and is fixed on supplementary bearing and covers on 37 grades.In the present example, plate 55 is separately positioned on the both sides of separating cup 40.
Below, with reference to illustrated embodiment, the feature structure and the action effect of the utility model is described.But the utility model is not limited to the structure of illustrated embodiment.
(1) shown in above-mentioned embodiment; Owing to below crankshaft 16, dispose in the multi-connecting-rod mechanism of Control Shaft (auxiliary axis) 27, the trend that exists the whole internal-combustion engine height to uprise, institute is not so that 15 formation of food tray bottom have the flat pattern of dark bottom; When guaranteeing oil mass, shorten the whole height of food tray; Thereby promote whole food tray, shorten the whole internal-combustion engine height thus, improve internal-combustion engine lift-launch property.Under this influence; Fuel head during the internal-combustion engine actual act rises; If with the axle side end 30 of the control link 26 of the rotation of crankshaft 16 interlock ground high speed swinging with accumulate in engine oil in the food tray and interfere and be submerged in the engine oil; Then increased oily stirring resistance, frictional force increases.
Therefore, in order to suppress above-mentioned engine oil and the interference of axle between the side end 30, and be provided with the separation cup 40 of the part of the axle side end 30 that surrounds control link 26 at least.Thus; As shown in Figure 3; Possibly produce the place, higher position that interferes with axle side end 30 even the fuel head L1 when the internal-combustion engine actual act is positioned at, also can suppress, avoid engine oil to get into axle side end 30 sides, suppress to cause frictional force to increase owing to producing to interfere with oil through separating cup 40; Thereby control link 26 can not bounce pasta, can suppress air and sneak in the engine oil.
Here; In above-mentioned multi-connecting-rod mechanism, because because of its structure, the axle side end 30 of control link 26 is accompanied by the rotation of crankshaft 16 and in predetermined range, swings; Its movement locus drops in the small range; Therefore, can utilize less separation cup 40 to surround, get into to avoid engine oil.
(2) geomery of separation cup 40 is set at, and the movement locus of the axle side end 30 of the control link of avoiding in predetermined range, swinging 26 has: pair of sidewalls portion 44, and its side across the axle side end 30 of predetermined gap and control link 26 is relative; And periphery wall portion 45, it is erected in the pair of sidewalls portion 44, and the periphery of the axle side end 30 of Coverage Control connecting rod 26, and, on side wall portion 44, be formed with the notch 46 that Control Shaft 27 is run through.As stated, separate cup 40 and form the shape of surrounding, get into and separate in the cup 40 thereby can suppress engine oil reliably from periphery and this three parts of bi-side of axle side end 30 through making.
(3) with reference to Fig. 3; Size design and oil mass with each parts are set at; Fuel head L1 when the internal-combustion engine actual act is lower than under the situation of lower end position 46A of notch 46, and some engine oils that in cylinder body, disperse can get into to be separated in the cup 40, can not flow into via notch 46 and separates in the cup 40 but accumulate in engine oil in the food tray; Therefore, can be with owing to interfering the frictional force produce to suppress fully lowly with engine oil.According to the inventor's test, to confirm to compare with not having the mode of separating cup, the frictional force that obtains more than or equal to 30% reduces effect.In addition, be set under the operating condition of stipulating at least, fuel head is than (L1 of Fig. 3) under the high situation of the lower end position of Control Shaft 27, and the collar that forms Control Shaft 27 immerses the form in the engine oil, improves its lubricity.
(4) on the other hand; In order to make whole internal-combustion engine height shorteningization; And the fuel head L2 when being set at the internal-combustion engine actual act is positioned under the situation of the position higher than the lower end position 46A of notch 46, fuel head than the low operational situation of the lower end position 46A of notch 46 in, can prevent that engine oil from getting into to separate in the cup 40; If but fuel head L2 rises to the lower end position 46A that is higher than notch 46, then engine oil can get into via notch 46 and separate in the cup 40.In the case, accumulate in and separate axle side end 30 stirrings that cup 40 interior engine oils can be swung, frictional force increases.
(5) therefore, preferably as after shown in the 6th～the 8th embodiment that states, form a structure that has getting into the oil extraction unit that the engine oils separated in the cup 40 discharge.Thus, can suppress to accumulate in the engine oil separated in the cup 40 and the frictional force that interference caused between the axle side end 30 increases.
(6) as the oil extraction unit, in the 6th embodiment shown in Figure 12 and the 7th embodiment shown in Figure 13, utilize and the rotation interlock ground of crankshaft 16 wobbling action with the control link 26 of high speed swinging, discharge the engine oil of separating in the cup 40.Through utilizing control link 26 to carry out oil extraction as stated, eliminate the number of components that is used to discharge thereby can reduce, and, because control link 26 and engine speed high speed swinging synchronously so its energy is bigger, can obtain higher discharging performance.
(7) in the 6th embodiment of Figure 12; Internal surface in the periphery wall portion 45 of separating cup 40; Be provided with the face 56 relatively that raises and form from periphery wall portion 45; Its at control link 26 when a side (clockwise direction among the figure) is swung, with the part of the axle side end 30 of this control link 26, specifically be arranged on the head of fixing bolt 30C and the face 60 of periphery office thereof, at interval and relatively across small ground.That is, the inboard through making periphery wall portion 45 is wall thickening partly, thereby forms relatively facial 56.In addition, the inside in the periphery wall portion 45 of separating cup 40 is formed with the oil circuit 57 along extending circumferentially.One end of this oil circuit 57 is in above-mentioned facial relatively 56 upper sheds, and the other end is the open upper end of surrounding wall portion 45 outside.Thus; Shown in figure 12, accumulate under the state of separating in the cup 40 at engine oil, if the control link of high speed swinging 26 is towards facial relatively 56 rotations; Then near facial 56 oil pressure relatively of an end opening of oil circuit 57 raise; Engine oil flows to the other end from an end of oil circuit 57, and through the other end of the open upper end of surrounding wall portion 45 outside, engine oil sprays to the outside.That is, the oil extraction unit has: opposing side, it is arranged on the internal surface of separating cup, when auxiliary connecting rod swings aside, with the part of the axle side end of this auxiliary connecting rod relatively; And oil circuit, the one of which end constitutes via this oil circuit and discharges the engine oil of separating in the cup in this opposing side upper shed.
(8) with reference to Figure 13; In the control link of when the internal-combustion engine actual act, swinging 26 with high speed; With respect to the axle side end 30 as the downside of swing fulcrum, approaching with at a high speed significantly mobile upper end portion, i.e. the bearing end 25A side of the 2nd connection pin 25, centrifugal force is big more.Therefore; In this 7th embodiment; Run through in the inside of control link 26 and to be formed with internal oil passages 58, one of which end 58A is at the lower face side opening of the axle side end 30 of control link 26, and near the other end 58B opening 25A of the bearing end of the upper end of control link 26.In the case; The centrifugal force of the control link of swinging with high speed when being utilized in the internal-combustion engine actual act 26; Make that accumulating in the engine oil of separating in the cup 40 is attracted in the internal oil passages 58 from the end 58A at axle side end 30 openings, 58B discharges to the outside via the other end.That is, the oil extraction unit has internal oil passages, and it is formed in the auxiliary connecting rod, and an end is at the axle side end opening of above-mentioned auxiliary connecting rod, and near the other end opening end side of above-mentioned auxiliary connecting rod.
(9) in the above-described embodiments, realized utilizing multi-connecting-rod mechanism to make the variable variable compression ratio of compression ratio of internal-combustion engine.Specifically; On the control eccentric axial portion 28 in being arranged on Control Shaft 27 prejudicially; The axle side end 30 of control link 26 is installed swingably, changes the rotational position of Control Shafts 27 through utilizing variable compression ratio actuator 33, thereby compression ratio of internal-combustion engine is changed.
But; The utility model is not limited thereto; It also can be multi-connecting-rod mechanism with variable compression ratio function; That is, the auxiliary connecting rod that is equivalent to above-mentioned Control Shaft 27 can't be fixed on the cylinder body side rotatably, and the axle side end that is equivalent to the auxiliary connecting rod of above-mentioned control link 26 is installed on the auxiliary axis swingably.In above-mentioned multi-connecting-rod mechanism, though do not have the variable compression ratio function, compare with single linkage mechanism, also can obtain the action effect such as rationalization and high compression ratioization of piston stroke characteristic.
(10) in addition, as above-mentioned oil extraction unit, in the 8th embodiment of Figure 14 and Figure 15, utilize the spinning movement of Control Shaft 27 to discharge the engine oil of separating in the cup 40.As stated, discharge engine oil through the spinning movement that utilizes the Control Shaft 27 that actuator 33 produces, thereby the number of components that can suppress to be used to discharge increases.
(11) in addition; If be conceived to utilize the direction of Control Shaft 27 rotations that actuator 33 produces; Then the time from the lower low compression ratio sideway swivel of the higher high compression ratio side direction in-cylinder pressure of in-cylinder pressure; The driving force addition of in-cylinder pressure and actuator 33 and to the effect of low compression ratio side, therefore with from the sideway swivel of low compression ratio side direction high compression ratio the time, compare the trend that exists rotating speed to increase.Therefore, when low compression ratio side (b) is rotated, discharge the engine oil of separating in the cup 40 from high compression ratio side (a) through constituting, thereby can discharge engine oil efficiently at Control Shaft 27.
(12) in compression ratio control, for example have the sensor (omitting diagram) of the actual angle of rotation that detects Control Shaft 27, based on this signal of sensor, the angle of rotation of Control Shaft 27 is carried out feedback control.In the case; Through constituting the sensing station that to internal combustion engine start the time, carries out compression ratio control when carrying out initialization; Make Control Shaft 27 towards initial position when prescribed direction (low compression ratio direction or high compression ratio direction) is rotated; Discharge the engine oil of separating in the cup 40; Thereby can when internal combustion engine start, be about to discharge the engine oil of separating in the cup 40 before the actual act by internal-combustion engine, can be suppressed at transmission machine oil effectively and accumulate in situation about turning round under the state of separating in the cup 40.
(13) as utilizing the oil extraction unit of the spinning movement of Control Shaft 27, in Figure 14 and the 8th embodiment shown in Figure 15, being provided with Control Shaft 27 is that the fulcrum discharge of swinging is with blade 59.Discharge with blade 59 as this, the cardinal extremity of excellent 59A is fixed on the periphery of Control Shaft 27, and is equipped with at the swing front end of excellent 59A and is used to catch engine oil and suitably crooked plate 59B, and this plate 59B and axle side end 30 are adjacent and get into and separate in glasss 40.And, being accompanied by Control Shaft 27 and rotating to low compression ratio side (b) from high compression ratio side (a), engine oils that make plate 59B will separate in the cup 40 are scooped out to the outside.That is, the oil extraction unit have discharge use blade, one of which end to be installed on the auxiliary axis, be that fulcrum is swung with this auxiliary axis, discharge and separate the interior engine oil of cup.
As implied above, based on specific embodiment the utility model is illustrated, but the utility model is not limited to the structure of illustrated embodiment, comprise various distortion, change.For example, in the above-described embodiments, will link with lower link 22, but also can link with last connecting rod 21 as the control link 26 of auxiliary connecting rod.In addition, in the above-described embodiments, as the Control Shaft 27 of auxiliary axis be configured in crankshaft under the position, but also can be configured in the oblique below of crankshaft.
Claims (5)
1. internal-combustion engine with many linkage types piston-crank mechanism, it utilizes many connecting rods that the piston of internal-combustion engine and the crank pin of crankshaft are connected, and utilizes auxiliary connecting rod will be configured in the auxiliary axis of crankshaft below and a binding in above-mentioned a plurality of connecting rod,
It is characterized in that,
Be provided with the separation cup of the part of the axle side end that surrounds above-mentioned auxiliary connecting rod at least, and above-mentioned auxiliary connecting rod is installed in swingably on the above-mentioned auxiliary axis.
2. the internal-combustion engine with many linkage types piston-crank mechanism according to claim 1 is characterized in that,
Above-mentioned separation cup has: pair of sidewalls portion, and its side across the axle side end of specified gap and above-mentioned auxiliary connecting rod is relative; And periphery wall portion, it is erected in the above-mentioned pair of sidewalls portion, and covers the periphery of the axle side end of above-mentioned auxiliary connecting rod, on above-mentioned side wall portion, is formed with the notch that above-mentioned auxiliary axis is run through.
3. the internal-combustion engine with many linkage types piston-crank mechanism according to claim 1 and 2 is characterized in that,
Oil extraction unit with the engine oil discharge that will get in the above-mentioned separation cup.
4. the internal-combustion engine with many linkage types piston-crank mechanism according to claim 3 is characterized in that,
The wobbling action of the above-mentioned auxiliary connecting rod that the rotation interlock ground of above-mentioned oil extraction unit by using and crankshaft is swung is discharged the engine oil in the above-mentioned separation cup.
5. the internal-combustion engine with many linkage types piston-crank mechanism according to claim 3 is characterized in that,
The axle side end of above-mentioned auxiliary connecting rod is installed on the control eccentric axial portion swingably, and this control eccentric axial portion is arranged on the above-mentioned auxiliary axis prejudicially,
And internal-combustion engine has the variable compression ratio actuator, and it passes through the rotational position of the above-mentioned auxiliary axis of change, and makes compression ratio of internal-combustion engine variable,
The engine oil in the above-mentioned separation cup is discharged in the spinning movement of the above-mentioned auxiliary axis of above-mentioned oil extraction unit by using.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-116836 | 2010-05-21 | ||
| JP2010116836A JP5625481B2 (en) | 2010-05-21 | 2010-05-21 | Internal combustion engine having a multi-link type piston-crank mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN202250390U true CN202250390U (en) | 2012-05-30 |
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| CN2011201665983U Expired - Lifetime CN202250390U (en) | 2010-05-21 | 2011-05-23 | Internal combustion engine with multi-link piston-crank mechanism |
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| JP (1) | JP5625481B2 (en) |
| CN (1) | CN202250390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159426A (en) * | 2019-06-28 | 2019-08-23 | 长城汽车股份有限公司 | The assembly method and engine of engine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150143861A (en) * | 2013-05-03 | 2015-12-23 | 스캇 블랙스탁 | Variable compression ratio engine |
| CN104265451A (en) * | 2014-08-04 | 2015-01-07 | 朱譞晟 | Double-cylinder engine capable of evenly adjusting compression ratio and mechanical supercharging |
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| US1870139A (en) * | 1929-02-25 | 1932-08-02 | Pierotti Angelo | Internal combustion engine |
| JPH0629447Y2 (en) * | 1987-08-26 | 1994-08-10 | トヨタ自動車株式会社 | Engine lubricator |
| JPH078804Y2 (en) * | 1989-04-14 | 1995-03-06 | 日産自動車株式会社 | Engine oil pan |
| JPH0617879A (en) * | 1992-07-01 | 1994-01-25 | Nissan Motor Co Ltd | Oil pan structure of engine with balancer shaft |
| JP4430519B2 (en) * | 2004-11-18 | 2010-03-10 | 本田技研工業株式会社 | Variable stroke characteristics engine |
| JP4303189B2 (en) * | 2004-11-18 | 2009-07-29 | 本田技研工業株式会社 | Variable stroke characteristics engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110159426A (en) * | 2019-06-28 | 2019-08-23 | 长城汽车股份有限公司 | The assembly method and engine of engine |
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|---|---|
| JP5625481B2 (en) | 2014-11-19 |
| JP2011241795A (en) | 2011-12-01 |
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