CN101694170A - Lubricating system of crank circular slide block combustion engine and combustion engine thereof - Google Patents

Lubricating system of crank circular slide block combustion engine and combustion engine thereof Download PDF

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Publication number
CN101694170A
CN101694170A CN200910236207A CN200910236207A CN101694170A CN 101694170 A CN101694170 A CN 101694170A CN 200910236207 A CN200910236207 A CN 200910236207A CN 200910236207 A CN200910236207 A CN 200910236207A CN 101694170 A CN101694170 A CN 101694170A
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China
Prior art keywords
oil
piston
crank
smooth block
combustion engine
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CN200910236207A
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Chinese (zh)
Inventor
黎明
黎正中
谭智民
冯德坤
缪会元
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Beijing Sinocep Engine Technology Co Ltd
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Beijing Sinocep Engine Technology Co Ltd
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Priority to CN200910236207A priority Critical patent/CN101694170A/en
Publication of CN101694170A publication Critical patent/CN101694170A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a lubricating system of a crank circular slide block combustion engine. The lubricating system comprises a body main oil gallery which is communicated with an oil storage device through an engine oil pump, and further consists of a crank circular slide block lubricating system which is communicated with the body main oil gallery and supplies lubricating oil for a friction pair of a motion pair of a crank circular slide block mechanism in an combustion engine. The lubricating system of the invention can realize the lubrication for the crank circular slide block mechanism in the combustion engine, and guarantees the normal work of the crank circular slide block combustion engine. The invention further provides a crank circular slide block combustion engine.

Description

The lubrication system of crank circular slider internal-combustion engine and internal-combustion engine thereof
Technical field
The present invention relates to crank circular slider internal-combustion engine, be specifically related to a kind of lubrication system of crank circular slider internal-combustion engine.The present invention also relates to a kind of crank circular slider internal-combustion engine simultaneously.
Background technique
In traditional internal-combustion engine and compressor, realize conversion between the rotatablely moving of the to-and-fro motion of piston and bent axle by connecting rod.Yet defectives such as in described connecting rod, because the existence of connecting rod, that the internal-combustion engine of connecting rod and compressor have is bulky, heavy, balance quality difference.
For addressing the above problem, the authorization day for announcing is that the Chinese patent that January 13, notification number in 1988 are CN85200358B discloses a kind of " crankshaft circular slide block reciprocating piston internal combustion engine ".Notice of authorization day is June 27 calendar year 2001, notice of authorization number to disclose a kind of " crank and double-round slide reciprocating piston internal combustion engine " for the Chinese patent of CN1067741C.Notice of authorization day is June 27 calendar year 2001, notice of authorization number to disclose a kind of " crank and multi-round slide reciprocating piston internal combustion engine " for the Chinese patent of CN1067742C.
The disclosed internal-combustion engine common feature of above-mentioned Chinese patent is in wherein to-and-fro motion and the switching mechanism that rotatablely moves, to have replaced connecting rod with circular slider-crank mechanism.Smooth block in the circular slider-crank mechanism is provided with eccentric circular hole.The piston seat of piston is provided with circular slider accommodation hole.During assembling, smooth block is placed described circular slider accommodation hole, smooth block can rotate in described circular slider accommodation hole; The crank pin of bent axle is assemblied in the described eccentric circular hole, and crank pin can rotate in described eccentric circular hole.
During work, combustion gas in the firing chamber expand and promote piston motion, driving the smooth block that is arranged at wherein by piston moves reciprocatingly, and smooth block rotates in described piston simultaneously, and described to-and-fro motion rotates around the central axis of bent axle with the synthetic central axis of the eccentric circular hole on the smooth block that makes that rotatablely moves; And the dead in line of the crank pin of the central axis of described eccentric circular hole and bent axle, thereby can realize the conversion that rotatablely moves that reciprocates to bent axle of piston.
In crank circular slider internal-combustion engine, replaced traditional brace and connecting rod framework by circular slider-crank mechanism, the lubrication system in traditional internal-combustion engine can't directly apply in the crank circular slider internal-combustion engine.Thereby the lubrication system of needs redesign crank circular slider internal-combustion engine is to satisfy the crank circular slider internal-combustion engine requirements of one's work.
Summary of the invention
The invention provides a kind of lubrication system of crank circular slider internal-combustion engine, lubrication system of the present invention can realize lubricated to the circular slider-crank mechanism of internal-combustion engine, guarantees the proper functioning of crank circular slider internal-combustion engine.
The lubrication system of a kind of crank circular slider internal-combustion engine provided by the invention, comprise the body main oil gallery that is communicated with Fuel Tanking Unit by oil pump, also comprise be communicated with described body main oil gallery, to the crank round slider lubricating system of the friction pair supplying lubricating oil of the kinematic pair of the circular slider-crank mechanism of described internal-combustion engine.
Optionally, described crank round slider lubricating system is communicated with described body main oil gallery by the rear bearing of bent axle.
Optionally, described crank round slider lubricating system comprises the crankshaft oil gallery that is arranged on the described bent axle, is arranged at the smooth block oil duct on the smooth block and is arranged at piston oil duct on the described piston.
Optionally, the kinematic pair of described circular slider-crank mechanism comprises the sliding pair of revolute pair and piston and the cylinder or the cylinder sleeve formation of revolute pair, smooth block and piston formation that bent axle and smooth block constitute at least;
The friction pair of the revolute pair that the friction pair of the revolute pair that described crank round slider lubricating system constitutes to described bent axle smooth block successively, smooth block and piston constitute and piston lubricate with the friction pair fuel feeding of cylinder or cylinder sleeve formation sliding pair.
Optionally, described crankshaft oil gallery comprise in the crank pin that is arranged at bent axle central oil passage along central axis, with described central oil passage be communicated with and lead to bent axle the main journal outer circumferential face oilhole and with described central oil passage the oilhole of the smooth block fitting surface of crank pin that be communicated with and that lead to bent axle;
Described smooth block oil duct comprise the outer circumferential face that is communicated with described smooth block with and the fuel feeding path of eccentric circular hole;
The fuel feeding oil duct that described piston oil duct comprises the oil groove that is arranged at described piston guide side plate and is communicated with the circular slider accommodation hole of described oil groove and described piston.
Optionally, can intermittent aim at when the aperture position of the fuel feeding path that position and described smooth block oil duct are set on described eccentric circular hole inner peripheral surface of the oilhole of the smooth block fitting surface of the described crank pin that leads to bent axle is arranged so that the revolute pair work that bent axle and smooth block constitute, thereby realize by described crankshaft oil gallery to described smooth block oil duct intermittence fuel feeding;
The fuel feeding path of described smooth block oil duct can intermittent be aimed at when the aperture position of oil supply gallery on the inner peripheral surface of described circular slider accommodation hole of the aperture position of its outer circumferential face and described piston oil duct is arranged so that the revolute pair work that smooth block and piston constitute, thereby realization is by the intermittent fuel feeding of described smooth block oil duct to described piston oil duct.
Optionally, described smooth block oil duct also be included in be provided with on the end face of described smooth block, with the oil groove that its eccentric circular hole is communicated with, the lubricant oil that is used for the friction pair of revolute pair that smooth block and bent axle are constituted is derived.
Preferably, in the top of described piston, also be provided with the cooling oil duct that is communicated with described piston oil duct, described cooling oil duct is communicated with return port on being arranged at piston, and lubricant oil is through described cooling oil duct and return port and be back to Fuel Tanking Unit and can realize cooling to piston head.
Preferably, on described piston, also be provided with lubricant oil nozzle towards the piston head back side, described lubricant oil nozzle is communicated with the piston oil duct on the described piston, lubricant oil in the described piston oil duct can be by described lubricant oil nozzle to the oil spout of the back side of described piston head, so that described piston head is cooled off.
The present invention also provides a kind of crank circular slider internal-combustion engine, comprises the lubrication system of the described crank circular slider internal-combustion engine of above-mentioned arbitrary technological scheme.
Compared with prior art, in the lubrication system of crank circular slider internal-combustion engine of the present invention, comprise be communicated with the body main oil gallery, to the crank round slider lubricating system of the friction pair supplying lubricating oil of the kinematic pair of the circular slider-crank mechanism of described internal-combustion engine, can realize lubricated to the circular slider-crank mechanism of internal-combustion engine, guarantee the proper functioning of crank circular slider internal-combustion engine.
In a preferred embodiment of the invention, in the top of described piston, also be provided with the cooling oil duct that is communicated with described piston oil duct or lubricant oil nozzle towards the piston head back side is arranged, can realize oil spout cooling,, guarantee the proper functioning of piston to reduce the temperature of piston head to piston head.
Description of drawings
Fig. 1 is embodiment's the schematic representation of the lubrication system of crank circular slider internal-combustion engine of the present invention;
Fig. 2 is the embodiment's of a crank round slider lubricating system of the present invention schematic representation;
Fig. 3 is a kind of schematic representation that is applied to the bent axle of circular slider-crank mechanism;
Fig. 4 is a kind of schematic representation that is applied to the smooth block of circular slider-crank mechanism;
Fig. 5 is a kind of schematic representation that is applied to the piston of circular slider-crank mechanism.
Embodiment
In crank circular slider internal-combustion engine, replaced brace and connecting rod framework in traditional internal-combustion engine with circular slider-crank mechanism.The invention provides a kind of lubrication system of crank circular slider internal-combustion engine, comprise the body main oil gallery that is communicated with Fuel Tanking Unit by oil pump, wherein, also comprise be communicated with described body main oil gallery, be used for crank round slider lubricating system to the friction pair fuel feeding of the kinematic pair of the circular slider-crank mechanism of described internal-combustion engine.
The circular slider-crank mechanism of crank circular slider internal-combustion engine comprises piston, smooth block and bent axle at least; Wherein, bent axle and smooth block constitute revolute pair, and smooth block and piston constitute revolute pair, and piston and cylinder or cylinder sleeve constitute sliding pair, and bent axle smooth block motion of mechanism pair comprises above-mentioned revolute pair and sliding pair at least.Described crank round slider lubricating system can be to the friction pair supplying lubricating oil of described kinematic pair, thereby can realize lubricated to described friction pair.
Below in conjunction with embodiment the lubrication system of crank circular slider internal-combustion engine of the present invention is described in detail.Fig. 1 is embodiment's the schematic representation of the lubrication system of crank circular slider internal-combustion engine of the present invention.
As shown in Figure 1, the lubrication system of crank circular slider internal-combustion engine of the present invention comprises Fuel Tanking Unit 101, oil pump 100, oil filter 103, body main oil gallery 104 and crank round slider lubricating system 10.
Wherein, described Fuel Tanking Unit 101 is used to store lubricant oil, and accepts the lubricant oil reflux after the lubrication system of internal-combustion engine.In internal-combustion engine, oil sump is the parts as Fuel Tanking Unit 101 commonly used.
One end of described oil pump 100 is communicated with described Fuel Tanking Unit 101, and the other end is communicated with described oil filter 103.Be used for the lubricant oil of Fuel Tanking Unit 101 is extracted out, and be delivered in the oil filter 103.In addition, oil pump 100 also provides pressure for the lubricant oil in the lubricating system of IC engine, is the critical piece of pressure lubrication in the internal-combustion engine.Be to adjust the pressure of entire internal combustion engine lubrication system, an end that is communicated with described oil filter 103 in described oil pump 100 also is provided with pressure regulator valve 102, as shown in Figure 1, and with the pressure of the lubricant oil of adjusting oil pump 100 outputs.
The other end of oil filter 103 is communicated with body main oil gallery 104.Enter body main oil gallery 104 through the lubricant oil after oil filter 103 filtrations.Crank round slider lubricating system 10 is communicated with described body main oil gallery 104.A lubricant oil part that enters into body main oil gallery 104 after oil filter 103 enters crank round slider lubricating system 10, and circular slider-crank mechanism is lubricated.
Wherein, described crank round slider lubricating system 10 can be communicated with described body main oil gallery 104 by the rear bearing of bent axle.Crankshaft rear bearing is meant the bearing of bent axle clutch end.Because in the dynamic output of this end bent axle, it is bigger load, is communicated with the body main oil gallery by this end, can guarantee lubricant oil is lubricated assurance bent axle proper functioning to the crankshaft rear bearing friction pair.
Fig. 2 is the embodiment's of crank round slider lubricating system 10 an of the present invention schematic representation.Wherein, the schematic representation shown in Fig. 2 for the crank round slider lubricating system of single-cylinder engine (situation that comprises single-cylinder single-acting piston and single-cylinder dual-action piston).
As shown in Figure 2, among the embodiment of crank round slider lubricating system 10 of the present invention, comprise 106 that be communicated with crankshaft rear bearing seat oil duct, be arranged at the crankshaft oil gallery 108 on the I. C. engine crankshaft, be arranged at the smooth block oil duct 110 on the smooth block and be arranged at piston oil duct 112 on the piston.
In circular slider-crank mechanism, piston is provided with guide portion and circular slider accommodation hole, and smooth block is provided with eccentric circular hole, and bent axle comprises crank pin and main journal.Piston places cylinder of internal-combustion engine or cylinder sleeve, constitutes sliding pair with cylinder or cylinder sleeve; Smooth block integral body places the circular slider accommodation hole of piston, constitutes revolute pair with piston; Crankshaft pin passes the eccentric circular hole of smooth block, constitutes revolute pair with smooth block.
The friction pair of the revolute pair that the friction pair of the revolute pair that described crank round slider lubricating system 10 can be successively constitutes to described bent axle and smooth block, smooth block and piston constitute and piston lubricate with the friction pair fuel feeding of cylinder or cylinder sleeve formation sliding pair.That is to say that crankshaft oil gallery 108, smooth block oil duct 110 and piston oil duct 112 can link together successively, a wherein end of crankshaft oil gallery 108 is communicated with crankshaft bearing oil duct 106.
Described crankshaft oil gallery 108 is used to be communicated with the friction pair that crankshaft rear bearing and bent axle and other parts form for being arranged at the lubricating oil path in the bent axle.A kind of schematic representation that is applied to the bent axle of circular slider-crank mechanism as shown in Figure 3.Bent axle comprises crank pin 1 and main journal 2 at least.Can fix assembling crank (scheming not shown) in the end relative of described crank pin 1 with end, described main journal 2 place.
The crankshaft oil gallery 108 that in bent axle illustrated in fig. 3, is provided with can comprise in the crank pin 1 that is arranged at bent axle central oil passage 3 along central axis, with described central oil passage 3 be communicated with and lead to bent axle main journal 2 outer circumferential faces oilhole 5 and be communicated with and lead to the oilhole 4 of smooth block fitting surface of the crank pin 1 of bent axle with described central oil passage 3.
Wherein, described main journal 2 constitutes revolute pair with the crankshaft rear bearing of internal-combustion engine, and oilhole 5 can be connected with oil duct on the rear bearing.Oilhole 4 is arranged at described crank pin 1 radially, be used for being communicated with the central oil passage 3 of crank pin 1 and the smooth block fitting surface of crank pin 1, after smooth block is socketed on the described crank pin 1, oilhole 5 can feed the lubricant oil in the central oil passage 3 surface of contact of the eccentric circular hole of crank pin and smooth block, to the friction pair fuel feeding of bent axle and smooth block.In addition, also be provided with oil duct on smooth block, the lubricant oil part of oilhole 5 also can enter among the smooth block oil duct.
A kind of schematic representation that is applied to the smooth block of circular slider-crank mechanism as shown in Figure 4.Smooth block 6 is provided with eccentric circular hole 8, and the crank pin 1 of bent axle shown in Figure 3 passes described eccentric circular hole 8, constitutes revolute pair with smooth block 6.
Described smooth block 6 is provided with fuel feeding path 7, the outer circumferential face that described fuel feeding path 7 is communicated with described smooth block 6 with and eccentric circular hole 8.Described fuel feeding path 7 is used to be communicated with crankshaft oil gallery and piston oil duct, and to the friction pair fuel feeding of smooth block 6 with the piston formation.Described fuel feeding path 7 can also have other set-up mode, and any path that can be communicated with the outer circumferential face of eccentric circular hole 8 and smooth block 6 all can be used as the smooth block oil duct among the present invention.Here be not described in detail.
In addition, the position of oilhole 4 of crank pin 1 of bent axle and the fuel feeding path 7 on the smooth block 6 can be set in the aperture position of described eccentric circular hole 8 inner peripheral surfaces, corresponding opening can intermittent be aimed at when the revolute pair that makes described bent axle and smooth block 6 constitute was worked, thereby can realize by crankshaft oil gallery 108 to described smooth block oil duct 110 intermittent fuel feeding.
In addition, smooth block oil duct 110 can also comprise the oil groove that is communicated with eccentric circular hole 8 (figure does not show) on the end face that is arranged at smooth block 6, this oil groove is used for the lubricant oil on the friction pair of the revolute pair of smooth block and bent axle formation is derived the end face of Castor Oil smooth block 6.Particularly, when perhaps the both ends of the surface part has the anti-attrition sheet, help alleviating friction for when the end face distance crankshaft main journal end face of described smooth block 6 is nearer.In addition, the lubricant oil of derivation is partly refluxed in the Fuel Tanking Unit shown in Figure 1 101.
A kind of as shown in Figure 5 schematic representation that is applied to the piston of circular slider-crank mechanism, guide portion 9 and circular slider accommodation hole 13 are set on the piston, and the piston oil duct comprises the oil groove 11 of the guiding side plate that is arranged at guide portion 9 and the oil supply gallery 12 that is communicated with described oil groove 11 and circular slider accommodation hole 13.
By described oil supply gallery 12, can be communicated with the smooth block oil duct that is arranged in the circular slider accommodation hole 13, lubricant oil is supplied to guide portion 9 and the cylinder of internal-combustion engine or the cylinder sleeve that contact with sliding pair with this guide portion 9.In addition, but storage area lubricant oil in the described oil groove 11, to guarantee sufficient lubrication.
In addition, the oil supply gallery 12 that described piston oil duct can be set on the inner peripheral surface of described circular slider accommodation hole 13 aperture position and the fuel feeding path 7 (as shown in Figure 4) of smooth block oil duct in the aperture position of smooth block outer circumferential face, can intermittent aim at when the revolute pair that makes smooth block and piston constitute is worked, thereby realize by the intermittent fuel feeding of described smooth block oil duct to the piston oil duct.Here be not described in detail.
In addition, on piston shown in Figure 5, can also be provided with lubricant oil nozzle 14 and oil supply gallery 15 towards the piston head back side, described lubricant oil nozzle 14 is communicated with an end of oil supply gallery 15 on the described piston, and the other end of oil supply gallery 15 is communicated with described circular slider accommodation hole 13.Thereby, can spray to the back side at the top of piston by described lubricant oil nozzle 14 by the lubricant oil of oil supply gallery 15, described piston head is cooled off.Wherein, by the position of described oil supply gallery 15 on the inner peripheral surface of circular slider accommodation hole 13 is set, can realize that oil supply gallery 15 and smooth block oil duct opening are intermittent and aim at, thereby can make the lubricant oil in the smooth block oil duct import oil supply gallery 15, realize the intermittent oil spout cooling in the back side of piston head with certain pressure intermittence.For example, cool off in the time of can being provided with piston difference stroke.
In addition, except that the oil spout cooling, at described piston head the cooling oil duct (figure does not show) that is communicated with the piston oil duct can also be set, described cooling oil duct is communicated with return port (figure do not show) on being arranged at piston, at the lubricant oil described cooling oil duct of process and when return port is back to Fuel Tanking Unit shown in Figure 1, can realize cooling, repeat no more here piston head.
In the above embodiments, with Fig. 3, Fig. 4 and bent axle, smooth block and piston shown in Figure 5 crankshaft oil gallery, smooth block oil duct and piston oil duct are illustrated, need to prove that the bent axle in circular slider-crank mechanism, smooth block and piston are not limited to Fig. 3, Fig. 4 and structure shown in Figure 5.
In addition, in the above embodiments, only be that example is illustrated with the single-cylinder engine.For the situation of multi-cylinder, with crank round slider lubricating system parallel connection shown in Figure 2, and a shared crankshaft oil gallery 108 gets final product, and no longer describes in detail here.
In addition, in the lubricating system of IC engine of the above embodiments, can also comprise cooling unit, temperature-detecting device, pressure-detecting device etc., in the mode of routine said apparatus be inserted and get final product, launch description here no longer in detail.
In addition, can also comprise the lubricating system to other parts of internal-combustion engine among the embodiment of above-mentioned lubricating system of IC engine, for example distribution cam axle, fuel cam axle and pitman arm shaft etc. launch here no longer one by one.
Crank circular slider internal-combustion engine lubrication system of the present invention can be applicable in the crank circular slider internal-combustion engine, and the present invention also provides a kind of internal-combustion engine of crank round slider, is not described in detail here.
Though the present invention with preferred embodiment openly as above; but it is not to be used for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.

Claims (10)

1. the lubrication system of a crank circular slider internal-combustion engine, comprise the body main oil gallery that is communicated with Fuel Tanking Unit by oil pump, it is characterized in that: also comprise be communicated with described body main oil gallery, to the crank round slider lubricating system of the friction pair supplying lubricating oil of the kinematic pair of the circular slider-crank mechanism of described internal-combustion engine.
2. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 1 is characterized in that: described crank round slider lubricating system is communicated with described body main oil gallery by the rear bearing of bent axle.
3. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 2 is characterized in that: described crank round slider lubricating system comprises the crankshaft oil gallery that is arranged on the described bent axle, be arranged at the smooth block oil duct on the smooth block and be arranged at piston oil duct on the described piston.
4. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 3 is characterized in that: the kinematic pair of described circular slider-crank mechanism comprises the revolute pair that revolute pair that bent axle and smooth block constitute, smooth block and piston constitute and the sliding pair of piston and cylinder or cylinder sleeve formation at least;
The friction pair of the revolute pair that the friction pair of the revolute pair that described crank round slider lubricating system constitutes to described bent axle smooth block successively, smooth block and piston constitute and piston lubricate with the friction pair fuel feeding of cylinder or cylinder sleeve formation sliding pair.
5. as the lubrication system of claim 3 or 4 described crank circular slider internal-combustion engines, it is characterized in that: described crankshaft oil gallery comprise in the crank pin that is arranged at bent axle central oil passage along central axis, with described central oil passage be communicated with and lead to bent axle the main journal outer circumferential face oilhole and with described central oil passage the oilhole of the smooth block fitting surface of crank pin that be communicated with and that lead to bent axle;
Described smooth block oil duct comprise the outer circumferential face that is communicated with described smooth block with and the fuel feeding path of eccentric circular hole;
The fuel feeding oil duct that described piston oil duct comprises the oil groove that is arranged at described piston guide side plate and is communicated with the circular slider accommodation hole of described oil groove and described piston.
6. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 5, it is characterized in that: can intermittent aim at when the aperture position of the fuel feeding path that position and described smooth block oil duct are set on described eccentric circular hole inner peripheral surface of the oilhole of the smooth block fitting surface of the described crank pin that leads to bent axle is arranged so that the revolute pair work that bent axle and smooth block constitute, thereby realize by described crankshaft oil gallery to described smooth block oil duct intermittence fuel feeding;
The fuel feeding path of described smooth block oil duct can intermittent be aimed at when the aperture position of oil supply gallery on the inner peripheral surface of described circular slider accommodation hole of the aperture position of its outer circumferential face and described piston oil duct is arranged so that the revolute pair work that smooth block and piston constitute, thereby realization is by the intermittent fuel feeding of described smooth block oil duct to described piston oil duct.
7. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 5, it is characterized in that: described smooth block oil duct also be included in be provided with on the end face of described smooth block, with the oil groove that its eccentric circular hole is communicated with, the lubricant oil that is used for the friction pair of revolute pair that smooth block and bent axle are constituted is derived.
8. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 5, it is characterized in that: in the top of described piston, also be provided with the cooling oil duct that is communicated with described piston oil duct, described cooling oil duct is communicated with return port on being arranged at piston, and lubricant oil is through described cooling oil duct and return port and be back to Fuel Tanking Unit and can realize cooling to piston head.
9. the lubrication system of crank circular slider internal-combustion engine as claimed in claim 5, it is characterized in that: on described piston, also be provided with lubricant oil nozzle towards the piston head back side, described lubricant oil nozzle is communicated with the piston oil duct on the described piston, lubricant oil in the described piston oil duct can be by described lubricant oil nozzle to the oil spout of the back side of described piston head, so that described piston head is cooled off.
10. a crank circular slider internal-combustion engine is characterized in that, comprises the described lubrication system of aforesaid right requirement 1 to 9 arbitrary claim.
CN200910236207A 2009-10-22 2009-10-22 Lubricating system of crank circular slide block combustion engine and combustion engine thereof Pending CN101694170A (en)

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CN200910236207A CN101694170A (en) 2009-10-22 2009-10-22 Lubricating system of crank circular slide block combustion engine and combustion engine thereof

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Application Number Priority Date Filing Date Title
CN200910236207A CN101694170A (en) 2009-10-22 2009-10-22 Lubricating system of crank circular slide block combustion engine and combustion engine thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588137A (en) * 2012-03-28 2012-07-18 东风朝阳朝柴动力有限公司 Pulse oil-supply type oil duct of engine cylinder body
CN104975902A (en) * 2014-04-14 2015-10-14 比亚迪股份有限公司 Engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102588137A (en) * 2012-03-28 2012-07-18 东风朝阳朝柴动力有限公司 Pulse oil-supply type oil duct of engine cylinder body
CN102588137B (en) * 2012-03-28 2014-03-12 东风朝阳朝柴动力有限公司 Pulse oil-supply type oil duct of engine cylinder body
CN104975902A (en) * 2014-04-14 2015-10-14 比亚迪股份有限公司 Engine
CN104975902B (en) * 2014-04-14 2018-08-14 比亚迪股份有限公司 Engine

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Application publication date: 20100414