CN100540875C - Internal-combustion engine and black box - Google Patents
Internal-combustion engine and black box Download PDFInfo
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- CN100540875C CN100540875C CN 200510054254 CN200510054254A CN100540875C CN 100540875 C CN100540875 C CN 100540875C CN 200510054254 CN200510054254 CN 200510054254 CN 200510054254 A CN200510054254 A CN 200510054254A CN 100540875 C CN100540875 C CN 100540875C
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Abstract
The present invention relates to a kind of internal-combustion engine and black box.Internal-combustion engine of the present invention comprises :-at least one motor body (2) has at least one first through hole (2 ');-at least one engine shaft (3) has first free end (3 '), and this axle (3) is connected with housing (2), extends to such an extent as to the free end (3 ') of axle (3) passes first through hole (2 ');-at least one chamber (4) is used to locate at least one axial brake device, and this chamber is connected with motor body (2), and this chamber has at least one second through hole (4 ') that matches with first through hole (2 ') of housing (2).This motor also comprises at least one black box (5), sealing assembly (5) preferably is connected with second through hole (4 '), sealing assembly (5) has the body (50) that is connected with chamber (4) or housing (2), body (50) is connected with seal element (51), and seal element (51) can compress and be resisted against on the motor body (2).Body (50) has columniform basically shape, and seal element (51) is the form of elastic ring basically.Equally also describe sealing assembly (5) in detail.
Description
Technical field
The present invention relates to a kind of internal-combustion engine, particularly a kind of quartastroke engine, this internal-combustion engine has the black box that is used to prevent the internal combustion engine lubrication oil leakage, the invention still further relates to this described black box.
Background technique
As a rule, according to the quartastroke engine of Otto cycle and diesel cycle operation within it portion have at least two rotating axles, that is: the bent axle that is connected with piston/link assembly rotatingshaft in other words and is camshaft or the rotatable shaft that 1: 2 the method for synchronization links to each other with this bent axle with the angular velocity ratio.
Motor with conventional construction has formed a lot of years, and camshaft is positioned on the cylinder body, the side of bent axle, and because the close bent axle of camshaft, so the driving of camshaft is subjected to the influence of a pair of gear or gimmal.In general, this driving is carried out in cylinder interior, perhaps this chain/gear and external isolation at least, thus any end of camshaft can not stretched out from engine cylinder-body.Therefore, the leakage of lubricant oil is also uncorrelated therewith in this zone.
In this respect, as a rule, the motor that moves according to diesel cycle has the camshaft that is positioned on the cylinder body, and by crank-driven, this chain also drives fuel oil injectionpump to this camshaft by chain.This chain is arranged in suitable chamber, and this chamber housing has engine lubricating oil, is used to guarantee the suitable operation of motor.
However, can draw such conclusion, promptly owing to the minimizing of detachable block quantity, camshaft is positioned at engine head can bring higher efficient to motor.
Camshaft is positioned at engine head makes and to utilize the method for gear drive camshaft unworkable that this mainly is because the distance problem between camshaft and the bent axle.Therefore, be necessary to use chain or rubber cam to bring drive cam shaft.
In these systems each all has its merits and demerits, and the great advantage of rubber cam band is low-cost and quiet operation.Yet, when with for example be grease, when the petroleum derivative of lubricant oil and fuel oil (gasoline or diesel oil) and so on contacted, can greatly reduce its working life.
On the contrary, use chain also can have quiet operation, working life (with consequent reliability) is more than the cam belt length, although the cost of chain is higher and very high to lubricated requirement.
Therefore, the cam of motor by the chain-drive situation under, stable lubricated be necessary, motor preferably uses same lubricant oil; Otherwise will reduce greatly the working life of this driving and motion chain.
But in the regions of lubrication of chain drive-belt, it is very necessary that there is not any leakage in motor, is the seal washer that utilizes plastic materials or polymeric material in the past, perhaps uses sealer to realize.Yet, although it is gratifying adopting the effect of above-mentioned these parts, but, when being carried out maintenance work, they need be taken apart by motor (for example when dismounting engine timing case, chain is positioned at this timing case), in assembling process again, the margin of error that causes oil leak is very important, this can cause carrying out maintenance service again, otherwise motor can constantly leak.
Obviously, except causing that the client is discontented, also can produce economic loss owing to carry out maintenance service again.
Unfortunately, also do not develop such four stroke engine, particularly according to the motor of diesel cycle work, this motor has the device that prevents that the oil leab of lubricant oil by the timing case from leaking out from motor, the chain drive-belt of camshaft is positioned at the timing case, this device can bring and prevent oil leak and the effect that is easy to mount and dismount, and can obtain good sealing more like a dream.
Summary of the invention
Main purpose of the present invention provides a kind of quartastroke engine, preferably but be not to have the camshaft that is positioned at engine head, be provided with at least one black box, the sealing assembly can prevent that lubricant oil from leaking out by the oil leab of timing case, and make people when motor is carried out maintenance service, can guarantee sealing without leakage simultaneously with simple and safe mode assembly and disassembly motor.
Second purpose of the present invention provides a kind of black box, and the sealing assembly can prevent that lubricant oil from leaking out from the oil leab of timing case, and the sealing assembly can be easily mounted on the motor, thereby can guarantee sealing in simple and safe mode.
First purpose of the present invention is by a kind of internal-combustion engine, and particularly a kind of four stroke engine realizes that this motor comprises:
-at least one motor body has at least one first through hole;
-at least one engine shaft has first free end, and this axle is connected by this way with housing, and promptly Zhou free end passes the extension of first through hole;
-at least one chamber is used to locate at least one axial brake device, and this chamber is connected with motor body, and this chamber has at least one second through hole that matches with first through hole of housing.
This motor also comprises at least one black box, when the chamber that is used for the positioning shaft drive unit is connected with motor body, the sealing assembly provides the sealing of first and second through holes, the sealing assembly comprises a body, seal element is connected with described body, body and chamber are rigidly connected, and the seal element compression is resisted against on the motor body.
Next, second purpose of the present invention is by a kind of black box, and particularly a kind of black box that is used on the internal-combustion engine realizes that this internal-combustion engine has:
-at least one motor body has first through hole;
-at least one engine shaft has first free end;
-and at least one chamber, be used to locate at least one axial brake device;
This axle is connected by this way with housing, and promptly Zhou free end passes the extension of first through hole, and this chamber is connected with motor body, and this chamber has at least one second through hole that matches with first through hole of housing;
Black box also comprises body, and seal element is connected on the body, and body and chamber are rigidly connected, and book seal element compression is resisted against on the motor body, and when chamber is compressed when being resisted against on the motor body, seal element is compressible.
Except other advantage, the present invention especially has following advantage:
Guarantee engine lubricating oil lubricated to chain, prevent oil leak by first and second through holes;
Convenient maintenance to motor need not adjusted assembly in order to ensure desirable sealing, and this is that the timing case can be fixed on engine head and/or the cylinder body suitably because assembly can seal automatically.
Reduce manufacture cost, the installation of black box is carried out easily.
Description of drawings
Embodiment shown in inciting somebody to action with reference to the accompanying drawings now describes the present invention in detail.Accompanying drawing is depicted as:
-shown in Figure 1 be the perspective back view of internal combustion engine cylinders of the present invention, this cylinder body is that the timing case is connected with the chamber at chain place;
-shown in Figure 2 be the perspective view of engine head of the present invention, this engine head is connected with the timing case, and comprises camshaft and chain drive-belt;
-shown in Figure 3 be the detailed perspective view of internal-combustion engine of the present invention, therefrom can see engine head, camshaft and timing case;
-shown in Figure 4 be the detailed perspective view of engine cam among Fig. 3, and black box of the present invention;
-shown in Figure 5 be the cross-sectional perspective view of motor among Fig. 3, therefrom can see the engine head, camshaft, timing case and the black box that link together among the present invention;
-shown in Figure 6 be detailed view with Fig. 5 of black box;
-shown in Figure 7 be the cross-sectional perspective view of motor of the present invention, therefrom can see the engine head, camshaft, timing case, camshaft actuated chain and the black box that link together among the present invention, the arrow among the figure is represented flowing of lubricant oil;
-shown in Figure 8 be the detailed view of the engine head of motor of the present invention, comprise camshaft and actuation gear thereof, do not comprise the timing case; With
-shown in Figure 9 be the perspective plan view of the engine head of the present invention that is connected with the timing case, therefrom can see black box, the arrow among the figure is represented flowing of lubricant oil.
Embodiment
According to preferred embodiment, as can be seen from Figure 1, the present invention relates to a kind of internal-combustion engine 1, particularly a kind of four stroke engine according to the diesel cycle operation, apparently, also can relate to a kind of according to the motor of Otto cycle operation or even the motor of any kind.Therefore, the four-stroke diesel motor of this preferred embodiment is not a limitation of the present invention.
No matter which kind of motor motor 1 is, as a rule, with respect to the combination of engine structure and inner member thereof, no matter fix or movable member, for example piston, connecting rod, bent axle, valve or the like, this motor all must comprise engine head 21.
In addition, motor 1 comprises an axle 3 that rotates at least in housing 2, thereby can make engine running.This can be bent axle, camshaft or the jack shaft of parts around driving, or the axle that must or need on any other motor.No matter which kind of axle this axle is, it all has a free end 3 ' that is used to connect pulley or gear, and this pulley or gear are used for transmitting or accepting angular motion, for example can be toothed pulleys.
In order to make axle 3 appropriate location, will mainly consider the free end 3 ' of axle 3, housing 2 has at least one through hole 2 '.
For most of internal-combustion engines according to diesel cycle and Otto cycle operation, motor body 2 comprises engine cylinder-body 20, this engine cylinder-body 20 has the chamber (also being cylinder) that is used to hold piston, is used to make the oil duct that lubricant oil flows and is used to the passage that makes cooling fluid mobile as a rule.Shown in this specification Fig. 1 is engine cylinder-body.
This internal-combustion engine comprises the engine head 21 that at least one is connected with cylinder body 20, and this engine head 21 is parts of Fig. 2,3,5,6,7,8,9 middle shells 2, and in general comprises (not shown) such as engine valve, rocking arm.
Therefore, term " motor body " typically refers to engine cylinder-body and/or head.
In the preferred embodiment, motor 1 comprises the engine head 21 with through hole 2 ', and this through hole 2 ' is used for the free end 3 ' of positioning cam axle 3, extends thereby this free end 3 ' can pass first through hole 2 '.
Clearly, through hole 2 ' can have any shape essential or that need, for example is cylindrical hole or part-annular breach etc.
In order to make motor 1 operation, need the device of drive cam shaft 3, this device should be synchronized with the movement with the bent axle (not shown), and its angular velocity is half of angular velocity of crankshaft.In order to reach this purpose, under any circumstance, these drive units have to prevent bent axle and camshaft 3 or the slip between another.
Adopt metal to distribute chain (among Fig. 2 and 7 shown in the reference character 41) in the preferred embodiment, if carry out proper lubrication, this metal distributes chain except having long working life, and motor is undisturbedly moved.Because these features and their high reliability and long working life (both are mutually related), the preferred employing distributed chain in to the new design of motor, and makes camshaft on engine head.But obviously, also can adopt rubber cam band, gear or any other driver part.
For to distributing chain 41 to carry out proper lubrication, and guarantee its serviceability and quiet operation, preferably adopt same engine lubricating oil, for this lubricant oil of this purpose by the oil leab water conservancy diversion.Like this, eliminate the needs that distribute the special and lubricant agent special that chain uses, thereby reduced manufacturing and the maintenance cost of motor.Can explain in more detail this point below.
In order to make motor 1 operation, bent axle comprises driving uses toothed pulley, this toothed pulley to make the bent axle can chain drive-belt and drive cam shaft 3 correspondingly, and, camshaft 3 also has at its free end 3 ' and drives with toothed pulley 30, and this can find out from Fig. 2,7 and 8.
In order to protect chain 41 not influenced by external factor; and guarantee to come the also not loss of lubricant oil of lubricating engine from motor; motor 1 comprises the chamber 4 that is used to locate chain, hereinafter is called the timing case, and chamber 4 preferably is connected with engine cylinder-body 20 with engine head 21.Yet, also have the timing case only to be fixed on engine cylinder-body 20 or only be fixed on motor on the engine head 21.
The structure of timing case 4 makes it have the device that will himself be fixed on engine cylinder-body 20 and/or the engine head 21, this device comprises second through hole 4 ', this second through hole 4 ' allows the free end 3 ' of camshaft 3 to pass, this device has at least one third through-hole 4 in addition "; this third through-hole 4 " can allow the free end of bent axle pass, also promptly, toothed pulley separately is arranged in this third through-hole 4 ".In order to be positioned properly chain, the structure of timing case has chamber 40.Timing case 4 also has a protective cover (not shown).
For the preferred embodiment of the motor of the disclosure, second through hole 4 ' has circular basically shape, but clearly, it also can have any shape that other must or need, and for example is cylindrical hole, part-annular groove or any other shape.
For the motor in the preferred embodiment of the present invention 1, timing case 4, still clearly, also can adopt any other fixing device, even also timing case 4 can be fixed on the engine head 21 to engine cylinder-body 20 by bolt.
But, as selectable way, also can provide a kind of according to motor 1 of the present invention, wherein through hole 2 ' is positioned on the engine cylinder-body 20, just as those have the motor of the camshaft 3 that is positioned on the engine cylinder-body.In addition, also can provide a kind of motor 1, wherein utilize existing through hole to come appropriate location other axle rather than camshaft 3, for example always be positioned at the bent axle on the engine cylinder-body 20.Adopt the timing case 4 of the motor of this configuration to have special geometrical construction, can be so that the motor proper functioning, but these timing casees 4 are at the conceptive casing 4 that discloses later that is equal to.
As mentioned above, engine lubricating oil is used for suitably distribution chain 41 being lubricated, thereby guarantees its serviceability and quietly running.
At first, lubricant oil is by first through hole 2 ' of engine head 2, and second through hole 4 ' by timing case 4 arrives chain 41 then.Clearly, the free end 3 ' at camshaft 3 does not provide the oiling agent holding device of any kind that above-mentioned lubricant oil is flowed.Should flow and from Fig. 7 and 9, to find out that wherein white arrow was represented lubricant oil.
To after distributing chain 41 and each toothed pulley to be lubricated, lubricant oil is by third through-hole 4 " or any other through hole turn back to oil pan (fuel tank is not shown).
But,, press for engine lubricating oil and do not leak when engine lubricating oil during by first and second through holes 2 ', 4 '.In the motor of prior art, the seal washer of making by polymeric material or by using sealer to solve this problem, although this measure is effective for the motor that newly comes into operation, but along with the time of using motor increases, especially when the maintaining motor, if because of very important, or even the mechanic's that may often occur reason, and do not have suitable location seal washer or not do not apply the sealer of q.s in abundant position, above-mentioned measure will end with very weak effect.Therefore, if oil leak occurred in this zone, mechanic's maintenance service of just having to carry out again.
In order to prevent to occur leaking sign during by first and second through holes 2 ', 4 ', provide a kind of black box 5 at lubricant oil.Preferably, this assembly 5 is fixed on the timing case 4 and is positioned at second through hole 4 ', and outstanding towards engine head 21.
When the timing case 4 that is used for the positioning shaft drive unit was connected on engine cylinder-body 20 and the engine head 21, black box 5 provided the sealing between first and second through holes 2 ', 4 '.Even timing case 4 and not alignment of engine head 21, this assembly 5 also can be guaranteed sealing.
Body 50 is rigidly connected in the zone of second through hole 4 ' with timing case 4, and preferred mode is to connect by three fixing bolts that are in 120 ° of arrangements.But clearly, also can fix with any other device, also can casing 4 other the zone rather than second through hole 4 ' near be connected.In addition, clearly, body 50 also can be fixed on the engine head 21 in the zone of first through hole 2 '.
In order to make black box 5 proper functioning, should allow lubricant oil to flow to timing case 4 (by first and second through holes 2 ', 4 ') from engine head 21, in order to reach this purpose, the diameter of the through hole of body 50 should be bigger a little than the diameter of the free end 3 ' of camshaft 3, can form the annular pass 52 that makes lubricant oil mobile like this.
When being fixed on the motor, timing case 4 (preferably is fixed on the engine cylinder-body 20), elastic ring 51 is compressed and is resisted against on the head 21, and the distortion of this mode can prevent to appear at the oil leak in the space between first and second through holes 2 ', 4 '.Can from Fig. 6 and 7, see the details that black box 5 is installed.
Body 50 is preferably made by No. 1010 steel, points out that this point is very important, and body does not produce deformation when being compressed like this, guarantees to have only seal ring 51 to produce compression, so always can provide suitable sealing.
Because 5 of black boies are fixed on the timing case 4, and because by making elastic ring 51 compression/deformation realize sealing between first and second through holes 2 ', 4 ', therefore when needing repairing motor, dismounting and assembling casing 4 become easily, do not reach suitable sealing again and do not need to adjust assembly 5.
When timing case 4 being reinstalled on engine cylinder-body 20 and the engine head 21, two kinds of situations may take place.
First kind of situation if black box 5 keeps good shape, that is to say that if seal ring 51 does not have sizable permanent set, as long as can guarantee excellent sealing, the timing case just can fit together once more with same assembly 5.Because casing is securely fixed on cylinder body 20 and the head 21 with bolt,, seal ring 51 guarantees sealing thereby being gradually reduced.
Second kind of situation if black box 5 does not keep good state (for example, permanent deformation has taken place seal ring, is unfavorable for whole sealing like this), just should be changed it, timing case 4 can be installed on the engine cylinder-body 20 then.
In addition, can provide a kind of black box 5, wherein seal ring 51 can be replaced by body 50 separately.
As mentioned above, black box can be fixed on the head 21, seal ring 51 is compressed and is resisted against on the timing case then and since the timing case by bolt on engine cylinder-body and engine head 20,21, this for the sealing and the dismounting easiness have same effect.
Clearly, the shape of body 50 can change, and mainly is the variation owing to second through hole, 4 ' shape, and seal element 51 also can be other shape outside the O shape ring in addition.
Should further be pointed out that,,, in the dependent claims they done further qualification as invention because black box 5 has novelty and creativeness.
In addition, the motor 1 that has more than a black box can also be provided, for example, motor have be used for sealed cam axle 3 (if motor have a plurality of camshafts also can) first black box 5 of through hole, be used to seal second black box 5 of the through hole of bent axle, motor also can have a plurality of black boies 5 of the through hole that is used to seal other different axle, for example around the jackshaft of parts.
Guarantee engine lubricating oil lubricated to chain, prevent by first and second through holes 2 ', 4 ' oil leak;
Convenient maintenance to motor need not adjusted assembly 5 in order to ensure desirable sealing, and this is because assembly 5 can seal automatically; For this purpose, timing case 4 can be fixed on the engine cylinder-body 20 suitably;
Reduce manufacture cost, the installation of black box 5 is carried out easily;
Even timing case 4 and not alignment of head 21 also can be guaranteed sealing.
Although described preferred embodiment at this, should be understood that scope of the present invention also comprises the modification that other is possible, only the content by the dependent claims that comprises possible equivalent limits.
Claims (14)
1, a kind of internal-combustion engine comprises:
-at least one motor body (2) has at least one first through hole (2 ');
-at least one engine shaft (3) has first free end (3 '), and this axle (3) is connected with housing (2), extends to such an extent as to the free end (3 ') of axle (3) passes first through hole (2 ');
-at least one chamber (4), be used to locate at least one axial brake device, this chamber is connected with motor body (2), this chamber has at least one second through hole (4 ') that matches with first through hole (2 ') of housing (2), and this motor (1) is characterised in that described motor comprises at least one black box (5), when the chamber that is used for the positioning shaft drive unit (4) and motor body (2) when being connected, sealing assembly (5) is used to seal first and second through holes (2 ', 4 ')
Described black box (5) comprises a body (50), and seal element (51) is connected with described body (50), and body (50) is rigidly connected with chamber (4), and described seal element (51) compression is resisted against on the motor body (2).
2, internal-combustion engine as claimed in claim 1 is characterized in that: described body is cylindrical, and described seal element (51) is the elastic ring shape.
3, internal-combustion engine as claimed in claim 1 or 2 is characterized in that: black box is connected with second through hole (4 ').
4, internal-combustion engine as claimed in claim 1 is characterized in that: body (50) is made by No. 1010 steel.
5, internal-combustion engine as claimed in claim 1 is characterized in that: motor body (2) comprises engine cylinder-body (20) and at least one engine head (21), and first through hole (2 ') is arranged in engine head (21).
6, internal-combustion engine as claimed in claim 1 is characterized in that: engine shaft (3) is a camshaft.
7, internal-combustion engine as claimed in claim 6 is characterized in that: the free end (3 ') of camshaft (3) has drive pulley or gear (30).
8, internal-combustion engine as claimed in claim 7 is characterized in that: the chamber (4) that is used for the positioning shaft drive unit is corresponding to the structure of having determined to be used for the chamber (40) of the form positioning shaft drive unit that distributes chain (41).
9, internal-combustion engine as claimed in claim 1 is characterized in that: described internal-combustion engine is a quartastroke engine.
10, a kind of black box is used for internal-combustion engine, and this internal-combustion engine has:
-at least one motor body (2) has at least one first through hole (2 ');
-at least one engine shaft (3) has first free end (3 '); With
-at least one chamber (4) is used to locate at least one axial brake device;
-this axle (3) is connected with housing (2), to such an extent as to passing first through hole (2 '), extends the free end (3 ') of axle (3), this chamber (4 ') is connected with motor body (2), and this chamber (4 ') has at least one second through hole (4 ') that matches with first through hole (2 ') of housing (2);
-black box (5), it is characterized in that, described black box comprises columniform body (50), seal element (51) is connected on the body (50), body (50) is rigidly connected with chamber (4), described seal element (51) compression is resisted against on the motor body (2), is resisted against motor body (2) when going up when chamber (4) is compressed, and seal element (51) is compressible.
11, assembly as claimed in claim 10 is characterized in that: seal element (51) is the form of elastic ring.
12, assembly as claimed in claim 11, it is characterized in that: when chamber (4) and housing (2) when being connected, first through hole (2 ') of this assembly canned motor housing (2) and second through hole (4 ') of chamber (4), chamber (4) is used for the positioning shaft drive unit.
13, assembly as claimed in claim 12 is characterized in that: body (50) is made by No. 1010 steel.
14, assembly as claimed in claim 13 is characterized in that: body (50) is connected with chamber (4) by bolt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPIO4002008 | 2004-02-03 | ||
| BRPI0400200 BRPI0400200B1 (en) | 2004-02-03 | 2004-02-03 | INTERNAL COMBUSTION ENGINE AND SEALING ASSEMBLY |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1654803A CN1654803A (en) | 2005-08-17 |
| CN100540875C true CN100540875C (en) | 2009-09-16 |
Family
ID=35044298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510054254 Active CN100540875C (en) | 2004-02-03 | 2005-02-03 | Internal-combustion engine and black box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100540875C (en) |
| BR (1) | BRPI0400200B1 (en) |
-
2004
- 2004-02-03 BR BRPI0400200 patent/BRPI0400200B1/en active IP Right Grant
-
2005
- 2005-02-03 CN CN 200510054254 patent/CN100540875C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0400200B1 (en) | 2013-12-17 |
| BRPI0400200A (en) | 2005-09-27 |
| CN1654803A (en) | 2005-08-17 |
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Effective date of registration: 20220822 Address after: Brazil, St Paul Patentee after: International Auto Industries America Ltd. Address before: Brazil, St Paul Patentee before: MWM International Engine Industries South America Ltd. Effective date of registration: 20220822 Address after: Brazil, St Paul Patentee after: MWM International Engine Industries South America Ltd. Address before: St. Bernardaud, Brazil Patentee before: INTERNATIONAL ENGINES SOUTH AMERICA Ltda |
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