CN106704022A - Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine - Google Patents
Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine Download PDFInfo
- Publication number
- CN106704022A CN106704022A CN201710060872.0A CN201710060872A CN106704022A CN 106704022 A CN106704022 A CN 106704022A CN 201710060872 A CN201710060872 A CN 201710060872A CN 106704022 A CN106704022 A CN 106704022A
- Authority
- CN
- China
- Prior art keywords
- piston
- cooling
- oil
- cooling oil
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/10—Cooling by flow of coolant through pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/066—Connecting rod with passageways
Abstract
The invention relates to a cooling and lubricating structure for a reciprocating piston type V-shaped engine, in particular to the cooling and lubricating structure for a piston connecting rod of the reciprocating piston type V-shaped engine. The cooling and lubricating structure comprises a machine body; a set of piston assemblies are arranged in each of two air cylinder sleeves of the machine body in a matched mode; each piston assembly comprises a piston skirt part and a piston head part connected to the end part of the piston skirt part; a cooling oil guide hole is formed in each piston skirt part in the axial direction; a cooling nozzle is arranged at the oil inlet end of each cooling oil guide hole; a cooling oil guide sleeve is arranged at the oil outlet end of each cooling oil guide hole; an inner cooling oil cavity is formed in the lower end of each piston head part; and a piston spring sheet is arranged at the opening end of each inner cooling oil cavity. The cooling and lubricating structure is simple and reasonable in structure and ingenious in design concept, cooling oil is sprayed into the inner cooling oil cavities in the moving process, the flow loss along the flowing path is small, the spayed oil divergence is small, and sufficient flow and pressure or flow velocity are ensured to realize cooling and lubricating of a piston, a piston pin, a piston bush and a connecting rod bush.
Description
Technical field
The present invention relates to reciprocating-piston V-type engine cooling and lubricating structure, specific land tax is a kind of reciprocating-piston V-type
Engine piston connecting rod cooling and lubricating structure.
Background technology
In prior art, the piston of reciprocating-piston V-type engine, piston pin, gudgeon pin bush, connecting rob bushing are to use
Machine oil carrys out cooling and lubricating, and prevents from blocking or burn.Usual top land is designed using inner-cooling oil recess, makees reciprocal at a high speed in piston
During motion, cooling machine oil being sprayed into and being flowed out through fuel feed hole, spill port after vibrated in inner-cooling oil recess absorption piston heat.Through oil-feed
Hole, the machine oil of spill port outflow cool down and lubricate piston, piston pin, gudgeon pin bush.And as V-type engine is continually strengthened,
The thermic load more and more higher of piston, is not enough to piston, piston pin, gudgeon pin bush, connecting rob bushing cooling and lubricating.
The content of the invention
The present invention is regarding to the issue above, there is provided a kind of reciprocating-piston V-type engine piston rod cooling and lubricating structure, should
Cooling machine oil is sprayed into inner-cooling oil recess when lubrication system is moved, small along journey flow losses, oily misconvergence of beams is few, it is ensured that flow enough
Amount, pressure（Flow velocity）To meet piston, piston pin, piston bushing, the cooling of connecting rob bushing and lubrication problem.
According to technical scheme：A kind of reciprocating-piston V-type engine piston rod cooling and lubricating structure, including
Body, is respectively cooperating with setting one group of piston component in two cylinder sleeves of body, and the piston component includes piston skirt and company
It is connected to the piston crown of piston skirt end, it is characterised in that：The piston skirt is provided with cooling oil pilot hole vertically, cooling
The oil inlet end of oily pilot hole is provided with cooling nozzles, and the oil outlet end of cooling oil pilot hole is provided with cooling oil fairlead；The piston head
Subordinate end forms inner-cooling oil recess, and the openend of inner-cooling oil recess sets piston spring piece, and fairlead section of stretching out passes through piston spring piece
On fuel feed hole stretch into inner-cooling oil recess, piston spill port is additionally provided with piston spring piece；It is additionally provided with piston crown in connection
The oilhole in cold oil chamber, piston skirt also connects connecting rod by connecting rob bushing, and the connecting rod is provided with connecting rod oilhole.
As a further improvement on the present invention, the connecting rob bushing is connected by piston pin with piston skirt.
As a further improvement on the present invention, the part that the cooling nozzles stretch into cooling oil pilot hole is cooling nozzles
Head, the part being connected with cooling nozzles head in cooling nozzles is cooling nozzles pressure accumulation chamber, the internal diameter of cooling nozzles head
Less than the internal diameter in cooling nozzles pressure accumulation chamber.
As a further improvement on the present invention, correspond on the body at each cylinder sleeve and be respectively provided with the main oil of body
Road oilhole, each described body main oil gallery oilhole is connected with adjoining cooling nozzles respectively.
As a further improvement on the present invention, during the centerline parallel of the center line of the connecting rod and piston skirt, connecting rod
Oilhole is near oilhole.
The technical effects of the invention are that：Product structure advantages of simple of the present invention, design concept are ingenious, will cooling during motion
Machine oil is sprayed into inner-cooling oil recess, and small along journey flow losses, oily misconvergence of beams is few, it is ensured that enough flow, pressure（Flow velocity）To meet work
Plug, piston pin, piston bushing, the cooling of connecting rob bushing and lubrication problem.
Brief description of the drawings
Fig. 1 operates in top dead centre and bottom dead center position sectional view for piston.
Fig. 2 operates in the enlarged drawing of bottom dead center position sectional view for piston.
Specific embodiment
Specific embodiment of the invention is further described below in conjunction with the accompanying drawings.
In Fig. 1,2, including piston crown 1, inner-cooling oil recess 2, piston spring piece 3, cooling oil fairlead 4, piston skirt 5,
Connecting rod 6, connecting rob bushing 7, piston pin 8, cooling oil pilot hole 9, cooling nozzles chamfering 10, cooling nozzles 11, cooling nozzles head
12nd, cooling nozzles pressure accumulation chamber 13, fairlead section of stretching out 14, oilhole 15, connecting rod oilhole 16, body main oil gallery oilhole 17, machine
Body 18, cylinder sleeve 19, piston spill port 20, piston component 21 etc..
As shown in Figure 1, 2, the present invention is a kind of reciprocating-piston V-type engine piston rod cooling and lubricating structure, including
Body 18, is respectively cooperating with setting one group of piston component 21 in two cylinder sleeves of body 18, and the piston component 21 includes piston
Skirt section 5 and the piston crown 1 of the end of piston skirt 5 is connected to, the piston skirt 5 is provided with cooling oil pilot hole 9 vertically, cold
The oil inlet end of oily pilot hole 9 is provided with cooling nozzles 11, and the oil outlet end of cooling oil pilot hole 9 is provided with cooling oil fairlead 4；It is described
The lower end of piston crown 1 forms inner-cooling oil recess 2, and the openend of inner-cooling oil recess 2 sets piston spring piece 3, and fairlead section of stretching out 14 is worn
The fuel feed hole 22 crossed on piston spring leaf 3 is stretched into inner-cooling oil recess 2, and piston spill port 20 is additionally provided with piston spring piece 3；Piston
The oilhole 15 of connection inner-cooling oil recess 2 is additionally provided with head 1, piston skirt 5 also connects connecting rod 6 by connecting rob bushing 7, described
Connecting rod 6 is provided with connecting rod oilhole 16.
Connecting rob bushing 7 is connected by piston pin 8 with piston skirt 5.
Cooling nozzles 11 stretch into part in cooling oil pilot hole 9 for cooling nozzles head 12, in cooling nozzles 11 with it is cold
But the part that nozzle head 12 is connected is cooling nozzles pressure accumulation chamber 13, and the internal diameter of cooling nozzles head 12 stores less than cooling nozzles
Press the internal diameter in chamber 13.
Correspond on body 18 at each cylinder sleeve 19 and be respectively provided with a body main oil gallery oilhole 17, each described body master
Oil duct oilhole 17 is connected with adjoining cooling nozzles 11 respectively.
During the centerline parallel of the center line of connecting rod 6 and piston skirt 5, connecting rod oilhole 16 is near oilhole 15.
The course of work of the invention is as follows：Machine oil（Pressure oil）Cooling spray is flowed through by the main oil gallery oilhole 17 on body 18
Mouth 11, the pressure accumulation that machine oil passes through cooling nozzles pressure accumulation chamber 13, then to cooling nozzles head 12 and cooling nozzles chamfering 10, cool down spray
More than 3.2, chamfering is not more than 0.3 to surface roughness at cooling nozzles chamfering 10 at mouth portion 12, makes machine oil oil misconvergence of beams few.
The machine oil that cooling nozzles 11 spray by cooling oil pilot hole 9 to cooling oil fairlead 4 again in inner-cooling oil recess 2, cooling oil guiding
The machine oil in hole 9 flows into fairlead section of stretching out 14, and fairlead section of stretching out 14 puts in inner-cooling oil recess 2 by fuel feed hole 22, is sparged into interior
The machine oil in cold oil chamber 2 is enough.Because piston component 21 moves reciprocatingly the machine oil being sparged into interior cold oil in cylinder sleeve 19
Concussion cooling piston crown 1, takes away most of heat of piston crown 1 in chamber 2.A machine oil part passes through fuel feed hole 22 and piston
Spill port 20 flows out, and is also flowed out at least partially through oilhole 15, and the machine oil of the outflow of oilhole 15 flows into connecting rod oilhole 16
Interior, part machine oil is stored in connecting rod oilhole 16, the rotation process of the opposing pistons pin 8 of connecting rob bushing 7 is cooled down and is lubricated
It is more abundant.
Claims (5)
1. a kind of reciprocating-piston V-type engine piston rod cooling and lubricating structure, including body（18）, body（18）Two
It is respectively cooperating with setting one group of piston component in cylinder sleeve（21）, the piston component（21）Including piston skirt（5）And be connected to
Piston skirt（5）The piston crown of end（1）, it is characterised in that：The piston skirt（5）Cooling oil pilot hole is provided with vertically
（9）, cooling oil pilot hole（9）Oil inlet end be provided with cooling nozzles（11）, cooling oil pilot hole（9）Oil outlet end be provided with cooling oil
Fairlead（4）；The piston crown（1）Lower end forms inner-cooling oil recess（2）, inner-cooling oil recess（2）Openend set piston spring
Piece（3）, fairlead section of stretching out（14）Through piston spring piece（3）On fuel feed hole（22）Stretch into inner-cooling oil recess（2）In, piston bullet
Reed（3）On be additionally provided with piston spill port（20）；Piston crown（1）On be additionally provided with connection inner-cooling oil recess（2）Oilhole
（15）, piston skirt（5）Also pass through connecting rob bushing（7）Connection connecting rod（6）, the connecting rod（6）It is provided with connecting rod oilhole（16）.
2. reciprocating-piston V-type engine piston rod cooling and lubricating structure as claimed in claim 1, it is characterised in that：Institute
State connecting rob bushing（7）By piston pin（8）With piston skirt（5）It is connected.
3. reciprocating-piston V-type engine piston rod cooling and lubricating structure as claimed in claim 1, it is characterised in that：Institute
State cooling nozzles（11）Stretch into cooling oil pilot hole（9）In part be cooling nozzles head（12）, cooling nozzles（11）It is upper with
Cooling nozzles head（12）The part being connected is cooling nozzles pressure accumulation chamber（13）, cooling nozzles head（12）Internal diameter less than cold
But nozzle pressure accumulation chamber（13）Internal diameter.
4. reciprocating-piston V-type engine piston rod cooling and lubricating structure as claimed in claim 1, it is characterised in that：Institute
State body（18）It is upper to correspond to each cylinder sleeve（19）Place is respectively provided with a body main oil gallery oilhole（17）, each described body master
Oil duct oilhole（17）Respectively with adjoining cooling nozzles（11）It is connected.
5. reciprocating-piston V-type engine piston rod cooling and lubricating structure as claimed in claim 1, it is characterised in that：Institute
State connecting rod（6）Center line and piston skirt（5）Centerline parallel when, connecting rod oilhole（16）Near oilhole（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060872.0A CN106704022A (en) | 2017-01-25 | 2017-01-25 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060872.0A CN106704022A (en) | 2017-01-25 | 2017-01-25 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704022A true CN106704022A (en) | 2017-05-24 |
Family
ID=58909951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710060872.0A Pending CN106704022A (en) | 2017-01-25 | 2017-01-25 | Cooling and lubricating structure for piston connecting rod of reciprocating piston type V-shaped engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704022A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653895A (en) * | 2018-11-15 | 2019-04-19 | 北京理工大学 | A kind of device improving small end of connecting rod lubrication state |
| CN111412055A (en) * | 2020-03-27 | 2020-07-14 | 河北科技大学 | Piston cooling device |
| CN111622856A (en) * | 2019-02-28 | 2020-09-04 | 强莉莉 | Piston group that V type was arranged |
| CN112963260A (en) * | 2021-03-29 | 2021-06-15 | 潍柴动力股份有限公司 | Piston structure, engine and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132101A (en) * | 1997-10-29 | 1999-05-18 | Komatsu Ltd | Cooling system of piston for internal combustion engine |
| CN201050413Y (en) * | 2007-05-26 | 2008-04-23 | 潍柴动力股份有限公司 | Engine piston |
| CN202220674U (en) * | 2011-08-05 | 2012-05-16 | 无锡开普动力有限公司 | Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod |
| CN103388537A (en) * | 2012-05-11 | 2013-11-13 | 曼柴油机和涡轮机欧洲股份公司 | Piston of internal combustion engine |
-
2017
- 2017-01-25 CN CN201710060872.0A patent/CN106704022A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132101A (en) * | 1997-10-29 | 1999-05-18 | Komatsu Ltd | Cooling system of piston for internal combustion engine |
| CN201050413Y (en) * | 2007-05-26 | 2008-04-23 | 潍柴动力股份有限公司 | Engine piston |
| CN202220674U (en) * | 2011-08-05 | 2012-05-16 | 无锡开普动力有限公司 | Cooling lubricating structure for a reciprocating piston type internal combustion engine piston connection rod |
| CN103388537A (en) * | 2012-05-11 | 2013-11-13 | 曼柴油机和涡轮机欧洲股份公司 | Piston of internal combustion engine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653895A (en) * | 2018-11-15 | 2019-04-19 | 北京理工大学 | A kind of device improving small end of connecting rod lubrication state |
| CN111622856A (en) * | 2019-02-28 | 2020-09-04 | 强莉莉 | Piston group that V type was arranged |
| CN111412055A (en) * | 2020-03-27 | 2020-07-14 | 河北科技大学 | Piston cooling device |
| CN112963260A (en) * | 2021-03-29 | 2021-06-15 | 潍柴动力股份有限公司 | Piston structure, engine and vehicle |
| CN112963260B (en) * | 2021-03-29 | 2022-04-26 | 潍柴动力股份有限公司 | Piston structure, engine and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |