CN101694169A - Lubricating system of internal combustion engine and internal combustion engine thereof - Google Patents
Lubricating system of internal combustion engine and internal combustion engine thereof Download PDFInfo
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- CN101694169A CN101694169A CN200910236206A CN200910236206A CN101694169A CN 101694169 A CN101694169 A CN 101694169A CN 200910236206 A CN200910236206 A CN 200910236206A CN 200910236206 A CN200910236206 A CN 200910236206A CN 101694169 A CN101694169 A CN 101694169A
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 73
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- 239000010687 lubricating oil Substances 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims description 46
- 239000000314 lubricant Substances 0.000 claims description 41
- 238000009826 distribution Methods 0.000 claims description 27
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- 239000000567 combustion gas Substances 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a lubricating system of an internal combustion engine, which is applied to a crank round-slider internal combustion engine. The lubricating system comprises a main oil passage of the engine body, a crank round-slider lubricating system, a distributing cam lubricating system, a high-pressure pump camshaft lubricating system and a rocker shaft lubricating system, wherein the main oil passage of the engine body is communicated with an oil storage device via an oil pump, the crank round-slider lubricating system is communicated with the main oil passage of the engine body and supplies lubricating oil to a friction pair of a motion pair of a crank round-slider mechanism of the internal combustion engine, the distributing cam lubricating system is communicated with the main oil passage of the engine body and used for lubricating a front bearing and a rear bearing of a distributing cam shaft, the high-pressure pump cam shaft lubricating system is communicated with the distributing cam lubricating system and used for lubricating a front bearing and a rear bearing of a high-pressure pump cam shaft, and the rocker shaft lubricating system is communicated with the distributing cam lubricating system and lubricates a bearing of a cylinder rocker shaft. The lubricating system can lubricate the crank round-slider mechanism of the internal combustion engine and cam shaft bearings, high-pressure pump bearings and a rocker shaft bearing in the internal combustion engine, and guarantees normal operation of the crank round-slider internal combustion engine. The invention further provides a crank round-slider internal combustion engine.
Description
Technical field
The present invention relates to 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 internal-combustion engine, lubrication system of the present invention can realize lubricated to the circular slider-crank mechanism of internal-combustion engine and the camshaft bearing in the internal-combustion engine, high-pressure service pump bearing and pitman arm shaft bearing, guarantees the proper functioning of crank circular slider internal-combustion engine.The present invention also provides a kind of crank circular slider internal-combustion engine.
The lubrication system of a kind of internal-combustion engine provided by the invention, be applied to crank circular slider internal-combustion engine, 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; Be communicated with described body main oil gallery, be used for providing lubricated valve cam lubricating system to the distribution cam axle front and back bearings; Be communicated with described valve cam lubricating system, be used for to high-pressure service pump camshaft front and back bearings provide lubricated high-pressure service pump camshaft lubrication system and be communicated with described valve cam lubricating system, provide lubricated pitman arm shaft lubricating system to cylinder pitman arm shaft bearing.
Optionally, described valve cam lubricating system comprise along described distribution cam axle central axial direction with and the oil duct that radially is provided with, be communicated with the front and back bearings of valve cam; The fore bearing of distribution cam axle is communicated with described body main oil gallery by bent axle rotor plate bearing.
Optionally, the fore bearing of described internal-combustion engine is communicated with described valve cam fore bearing by the oil duct that is arranged on the body.
Optionally, described high-pressure service pump camshaft lubrication system comprise be communicated with described high-pressure service pump camshaft rear bearing and the oil duct of described valve cam rear bearing, along high-pressure service pump camshaft central axis and radially be provided with, be communicated with the oil duct of described high-pressure service pump camshaft front and back bearings.
Optionally, described pitman arm shaft lubricating system comprise be arranged at pitman arm shaft cylinder-body oil duct on the internal combustion engine cylinders, that be communicated with described distribution cam axle rear bearing, be arranged in the pitman arm shaft cylinder cap oil duct that is communicated with described pitman arm shaft cylinder-body oil duct on the cylinder cap, the pedestal oil duct that is arranged at the connection pitman arm shaft cylinder cap oil duct on the pitman arm shaft pedestal, the pitman arm shaft along the pitman arm shaft central oil passage that is communicated with described pedestal oil duct of its central axis setting and be arranged at the pitman arm shaft two end part along its oilhole radially.
Optionally, described crank round slider lubricating system is communicated with described body main oil gallery by the rear bearing of bent axle.
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 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;
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;
Described piston oil duct comprises oil groove that is arranged at described piston guide side plate outer side surface and the fuel feeding oil duct that is communicated with the circular slider accommodation hole of described oil groove and described piston.
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 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, 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; Be communicated with described body main oil gallery, be used for providing lubricated valve cam lubricating system to the valve cam front and back bearings; Be communicated with described valve cam lubricating system, be used for to high-pressure service pump cam front and back bearings provide lubricated high-pressure service pump camshaft lubrication system and be communicated with described valve cam lubricating system, provide lubricated pitman arm shaft lubricating system to cylinder pitman arm shaft bearing.The present invention can realize lubricated to the circular slider-crank mechanism of internal-combustion engine and the camshaft bearing in the internal-combustion engine, high-pressure service pump bearing and pitman arm shaft bearing, guarantees 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 embodiment's the schematic representation of the lubrication system of a kind of V-type crank circular slider internal-combustion engine of the present invention.
Embodiment
Be elaborated below in conjunction with embodiment and accompanying drawing lubrication system (being also referred to as the lubrication system of crank circular slider internal-combustion engine) to internal-combustion engine of the present invention.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 that Fuel Tanking Unit 101, oil pump 100, oil filter 103, body main oil gallery 104, crank round slider lubricating system 10, valve cam lubricating system 200, high-pressure service pump camshaft lubrication are 300 and pitman arm shaft lubricating system 400.
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-limit 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 that (bearing of the support bent axle the other end relative with described crankshaft rear bearing is called crankshaft front bearing for the bearing of bent axle clutch end.In addition, in this specification, the front and back of the bearing of the axle in the internal-combustion engines such as distribution cam axle, high-pressure service pump camshaft and the self-consistentency of crankshaft bearing).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.
Valve cam lubricating system 200 also is communicated with described body main oil gallery 104.The part of the lubricant oil of body main oil gallery 104 can enter valve cam lubricating system 200, and the front and back bearings of the distribution cam axle of internal-combustion engine is lubricated, and guarantees the revolute pair proper functioning of distribution cam axle and its bearing formation.
The high-pressure service pump camshaft lubrication is 300 to be communicated with described valve cam lubricating system 200, be dispensed to the lubricant oil of valve cam lubricating system 200 except that guaranteeing through body main oil gallery 104 to distribution cam axle bearing lubrication, it is 300 that a part also is dispensed to the high-pressure service pump camshaft lubrication, is used for the front and back bearings of high-pressure service pump camshaft is lubricated.
In addition, valve cam lubricating system 200 also is communicated with pitman arm shaft lubricating system 400, to the pitman arm shaft lubricating system, provides lubricated to the pitman arm shaft bearing of cylinder of internal-combustion engine with a part of distribution of lubrication oil.
Below in conjunction with a kind of V-type crank circular slider internal-combustion engine lubrication system of the present invention is described.Fig. 2 is the schematic representation of the lubrication system of a kind of V-type crank circular slider internal-combustion engine of the present invention.
Please refer to Fig. 2, oil sump 101a (being also referred to as Fuel Tanking Unit) is used to store lubricant oil, and the lubricant oil among the oil sump 101a communicates with oil pump 100 oil input channels by the oil duct that is arranged among the oil sump 101a behind strainer, makes machine oil enter oil pump 100.Wherein, described oil pump 100 can be arranged on the gear chamber cover plate of internal-combustion engine, bent axle driver plate bearing, water pump bearing and valve cam fore bearing etc. can also be set on described gear chamber cover plate, and the part that described gear chamber cover can be used as body is assemblied on the body by bolt.
The extreme pressure lubricant that flows out from oil pump 100 is divided into two-way, and the pressure-limit valve 102 that is arranged on the described gear chamber cover plate of leading up to is back to oil sump 101a.Promptly when oil pressure was higher than predetermined value, pressure-limit valve 102 was opened, and by pressure-limit valve 102 a part of lubricant oil was back to oil sump 101a, realized the purpose of pressure limiting.The common oil duct a that constitutes enters among the secondary filter 103a (being also referred to as oil filter) that is arranged on the body on described gear chamber cover plate and the internal combustion (IC) engine airframe by being arranged on another road.
Through the lubricant oil of secondary filter 103a, enter crankshaft rear bearing 106 by oil duct b on the internal combustion (IC) engine airframe, crankshaft rear bearing 106 is lubricated.Enter in the bent axle driver plate bearing 195 that is arranged on the described gear chamber cover plate by internal combustion (IC) engine airframe and common another oil duct c that constitutes of gear chamber cover plate in addition.
Entering described bent axle transmission shaft bearing 195 lubricant oil can enter among the distribution cam axle fore bearing 200a that is arranged on the described gear chamber cover plate by the oil duct d that is arranged on the described gear chamber cover plate, and described valve cam fore bearing 200a is lubricated.
In the embodiments of the invention, the valve cam lubricating system comprise along described distribution cam axle central axial direction with and the fore bearing 200a that radially is provided with, be communicated with distribution cam axle and the oil duct f of rear bearing 200b.The lubricant oil that enters the fore bearing 200a of described distribution cam axle can be imported rear bearing 200b by described oil duct f, thereby realize lubricating rear bearing 200b.
In addition, by being arranged on the oil duct e on described internal combustion (IC) engine airframe and the gear chamber cover plate, can be communicated with distribution cam axle fore bearing 200a and crankshaft front bearing 106b.Thereby the another part that leads to the lubricant oil of distribution cam axle fore bearing 200a can import crankshaft front bearing 106b, and 106b is lubricated to crankshaft front bearing.
In addition, on internal combustion (IC) engine airframe rear-end plate can be set, described distribution cam axle rear bearing 200b can be arranged on the described rear-end plate, and the rear bearing of high-pressure service pump camshaft can also be set on described rear-end plate.
In the embodiments of the invention, high-pressure service pump camshaft lubrication system comprise the oil duct g that is communicated with described high-pressure service pump camshaft rear bearing 300b and described valve cam rear bearing 200b, along high-pressure service pump camshaft central axis with and radially be provided with, be communicated with the oil duct i of described high-pressure service pump camshaft front and back bearings 300b and 300a.
Described oil duct g can be arranged on the described rear-end plate, the lubricant oil that is supplied to valve cam rear bearing 200b is fed high-pressure service pump camshaft rear bearing 300b, and by described oil duct i, make lubricant oil enter high-pressure service pump camshaft fore bearing 300a.Thereby realize lubricating to high-pressure service pump camshaft front and back bearings 300a and 300b.
In the present embodiment, the pitman arm shaft lubricating system also is communicated with described valve cam rear bearing 200b.Wherein, the pitman arm shaft lubricating system can comprise be arranged at pitman arm shaft cylinder-body oil duct on the internal combustion engine cylinders, that be communicated with described distribution cam axle rear bearing 200b, be arranged at the pitman arm shaft cylinder cap oil duct that is communicated with described pitman arm shaft cylinder-body oil duct on the cylinder cap, be arranged on the pitman arm shaft pedestal and be communicated with in the pedestal oil duct, pitman arm shaft of pitman arm shaft cylinder cap oil duct along the pitman arm shaft central oil passage that is communicated with the pedestal oil duct of its central axis setting and be arranged at the pitman arm shaft two end part along its oilhole radially.
Two cylinders about the V-type internal combustion engine of present embodiment comprises at least are so comprise left cylinder distribution pitman arm shaft lubricating system 400a and right cylinder distribution pitman arm shaft lubricating system 400b at least.Two lubricating system 400a and 400b all are communicated with described valve cam rear bearing 200b.Can realize left cylinder pitman arm shaft bearing 401a, 401b and right cylinder pitman arm shaft bearing 402a and 402b fuel feeding lubricated by described lubricating system 400a and 400b.Certainly, the distribution device of the cylinder in the present embodiment is two air valve structures, and for four air valve structures, the pitman arm shaft lubricating system of every cylinder needs four bearings of lubricated pitman arm shaft simultaneously, repeats no more here.
In addition, distribution cam axle to the transmission of power between the high-pressure service pump camshaft also needs idle pulley as drive wheel sometimes, when lubricating oil path is set, distribution cam axle to the oil circuit between the high-pressure service pump camshaft is got final product through described idle pulley bearing.And, oil duct to the pitman arm shaft fuel feeding of a certain cylinder can be communicated with described idle pulley bearing, and needn't directly be communicated with described valve cam rear bearing 200b again, and this can shorten the distance of oil duct, and avoid repeating to be provided with oil duct, also make oil duct manufacture simplification on body and the cylinder cap.
The lubricant oil that leads to above-mentioned distribution cam axle lubricating system, high-pressure service pump camshaft lubrication system and pitman arm shaft lubricating system all can be back to oil sump 101a.As shown in Figure 2.
In addition, enter the lubricant oil of crankshaft rear bearing 106 by oil duct b on the internal combustion (IC) engine airframe, except that crankshaft rear bearing 106 is lubricated, there is parts of lubricating oil to enter crank round slider lubricating system 10 through described crankshaft rear bearing 106, the kinematic pair in the crank round slider lubricating system 10 is lubricated.
In the V-type internal combustion engine of present embodiment, about the piston, smooth block of two cylinders constitute circular slider-crank mechanism with bent axle and can have identical lubrication system, be the example explanation only in the present embodiment to the lubrication system of the circular slider-crank mechanism of a cylinder wherein.
In circular slider-crank mechanism, its kinematic pair 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 crank round slider lubricating system 10 can be successively constitutes to described bent axle smooth block, smooth block and piston constitute and piston lubricate with the friction pair fuel feeding of cylinder or cylinder sleeve formation sliding pair.
As shown in Figure 2, in the crank round slider lubricating system 10 of the present invention, comprise and be arranged on the bent axle and be communicated with crankshaft rear bearing seat 106 and the crankshaft oil gallery k of crank pin bearing 108, be arranged on the smooth block and be communicated with crank pin bearing 108 and the smooth block oil duct l of smooth block lining 110, be arranged on the piston and be communicated with smooth block lining 110 and the piston oil duct m of piston guide side.
Described crankshaft oil gallery k is the lubricating oil path that is arranged in the bent axle, 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 be communicated with and lead to the oilhole of the smooth block fitting surface (being the crank pin bearing inner peripheral surface) of the crank pin of bent axle with described central oil passage.
Wherein, the crankshaft rear bearing 106 of described crankshaft main journal and internal-combustion engine constitutes revolute pair, and the oilhole that leads to the main journal outer circumferential face of bent axle can be connected with crankshaft rear bearing 106.The oilhole of smooth block fitting surface that leads to the crank pin of bent axle is arranged at described crank pin radially, is used for being communicated with the central oil passage of crank pin and the smooth block fitting surface of crank pin.
Described smooth block oil duct l comprise the outer circumferential face that is communicated with described smooth block with and the fuel feeding path of eccentric circular hole.The position of oilhole of the smooth block fitting surface that leads to crankshaft pin and the fuel feeding path on the smooth block can be set in the aperture position of described eccentric circular hole inner peripheral surface, corresponding opening can intermittent be aimed at when the revolute pair that makes described bent axle and smooth block constitute was worked, thereby can realize by crankshaft oil gallery k to the intermittent fuel feeding of described smooth block oil duct l.
In addition, smooth block oil duct l can also comprise the oil groove that is communicated with eccentric circular hole on the end face that is arranged at smooth block, and 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.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 is nearer.In addition, the lubricant oil of derivation is partly refluxed among the Fuel Tanking Unit 101a shown in Figure 2.
Described piston oil duct m comprises oil groove that is arranged at described piston guide side plate outer side surface direction (promptly towards the cylinder of internal-combustion engine direction) and the fuel feeding oil duct that is communicated with the circular slider accommodation hole of described oil groove and described piston.
By described piston oil duct m, can be communicated with the smooth block oil duct l that is arranged in the circular slider accommodation hole, lubricant oil is supplied to piston guide side plate outer side surface.In addition, but storage area lubricant oil in the described oil groove, to guarantee sufficient lubrication.
In addition, can be provided with described piston oil duct m on the inner peripheral surface of described circular slider accommodation hole aperture position and smooth block oil duct l 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 l to piston oil duct m.Here be not described in detail.
In addition, can also be provided with the lubricant oil nozzle towards the piston head back side on piston, described lubricant oil nozzle is communicated with described piston oil duct m.Thereby, can spray to the back side at the top of piston by described lubricant oil nozzle by the lubricant oil of piston oil duct m, described piston head is cooled off.Wherein, by the position of described piston oil duct m on the inner peripheral surface of circular slider accommodation hole is set, can realize that piston oil duct m and smooth block oil duct l are intermittent and aim at, thereby can make the lubricant oil in the smooth block oil duct import piston oil duct m, 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 that is communicated with piston oil duct m can also be set, described cooling oil duct m is communicated with return port 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 101a shown in Figure 2, can realize cooling, repeat no more here piston head.
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 the embodiments of the invention, make full use of internal combustion (IC) engine airframe space and gear chamber cover, rear-end plate and arrange oil duct, and make as far as possible and shorten oil duct length, reduce and repeat to arrange, make the body simplified manufacturing process.
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 an internal-combustion engine, be applied to 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; Be communicated with described body main oil gallery, be used for providing lubricated valve cam lubricating system to the distribution cam axle front and back bearings; Be communicated with described valve cam lubricating system, be used for to high-pressure service pump camshaft front and back bearings provide lubricated high-pressure service pump camshaft lubrication system and be communicated with described valve cam lubricating system, provide lubricated pitman arm shaft lubricating system to cylinder pitman arm shaft bearing.
2. the lubrication system of internal-combustion engine as claimed in claim 1 is characterized in that: described valve cam lubricating system comprise along described distribution cam axle central axial direction with and the oil duct that radially is provided with, be communicated with the front and back bearings of valve cam; The fore bearing of distribution cam axle is communicated with described body main oil gallery by bent axle rotor plate bearing.
3. the lubrication system of internal-combustion engine as claimed in claim 2, it is characterized in that: the fore bearing of described internal-combustion engine is communicated with described valve cam fore bearing by the oil duct that is arranged on the body.
4. the lubrication system of internal-combustion engine as claimed in claim 2 is characterized in that: described high-pressure service pump camshaft lubrication system comprise be communicated with described high-pressure service pump camshaft rear bearing and the oil duct of described valve cam rear bearing, along high-pressure service pump camshaft central axis and radially be provided with, be communicated with the oil duct of described high-pressure service pump camshaft front and back bearings.
5. the lubrication system of internal-combustion engine as claimed in claim 2 is characterized in that: described pitman arm shaft lubricating system comprise be arranged at pitman arm shaft cylinder-body oil duct on the internal combustion engine cylinders, that be communicated with described distribution cam axle rear bearing, be arranged in the pitman arm shaft cylinder cap oil duct that is communicated with described pitman arm shaft cylinder-body oil duct on the cylinder cap, the pedestal oil duct that is arranged at the connection pitman arm shaft cylinder cap oil duct on the pitman arm shaft pedestal, the pitman arm shaft along the pitman arm shaft central oil passage that is communicated with described pedestal oil duct of its central axis setting and be arranged at the pitman arm shaft two end part along its oilhole radially.
6. the lubrication system of 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.
7. the lubrication system of internal-combustion engine as claimed in claim 6 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.
8. the lubrication system of internal-combustion engine as claimed in claim 7 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;
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;
Described piston oil duct comprises oil groove that is arranged at described piston guide side plate outer side surface and the fuel feeding oil duct that is communicated with the circular slider accommodation hole of described oil groove and described piston.
9. the lubrication system of internal-combustion engine as claimed in claim 8, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910236206 CN101694169B (en) | 2009-10-22 | 2009-10-22 | Lubricating system of internal combustion engine and internal combustion engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910236206 CN101694169B (en) | 2009-10-22 | 2009-10-22 | Lubricating system of internal combustion engine and internal combustion engine thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101694169A true CN101694169A (en) | 2010-04-14 |
| CN101694169B CN101694169B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910236206 Expired - Fee Related CN101694169B (en) | 2009-10-22 | 2009-10-22 | Lubricating system of internal combustion engine and internal combustion engine thereof |
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| Country | Link |
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| CN (1) | CN101694169B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103282641A (en) * | 2010-12-28 | 2013-09-04 | 丰田自动车株式会社 | High-pressure pump |
| CN103867251A (en) * | 2014-01-01 | 2014-06-18 | 徐亚芹 | Engine lubricating system |
| CN107559063A (en) * | 2017-10-11 | 2018-01-09 | 芜湖钻石航空发动机有限公司 | A kind of engine lubrication system, engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100358B (en) * | 1985-04-01 | 1988-01-13 | 黎正中 | Crankshaft circular slide block reciprocating piston internal combustion engine |
| CN1067741C (en) * | 1995-06-13 | 2001-06-27 | 辽宁大安发动机研究所 | Crank and double-round slide reciprocating piston internal combustion engine |
| CN2331764Y (en) * | 1998-06-16 | 1999-08-04 | 重庆鼎立新型发动机有限公司 | Crank round block slider reciprocating piston engine |
| KR20040043760A (en) * | 2002-11-20 | 2004-05-27 | 현대자동차주식회사 | Oil jet apparatus using connecting rod |
-
2009
- 2009-10-22 CN CN 200910236206 patent/CN101694169B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103282641A (en) * | 2010-12-28 | 2013-09-04 | 丰田自动车株式会社 | High-pressure pump |
| CN103282641B (en) * | 2010-12-28 | 2015-11-25 | 丰田自动车株式会社 | High-pressure service pump |
| CN103867251A (en) * | 2014-01-01 | 2014-06-18 | 徐亚芹 | Engine lubricating system |
| CN107559063A (en) * | 2017-10-11 | 2018-01-09 | 芜湖钻石航空发动机有限公司 | A kind of engine lubrication system, engine |
| CN107559063B (en) * | 2017-10-11 | 2023-12-08 | 芜湖钻石航空发动机有限公司 | Engine lubricating system and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101694169B (en) | 2012-07-04 |
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