CN206233981U - Engine piston cooling unit - Google Patents
Engine piston cooling unit Download PDFInfo
- Publication number
- CN206233981U CN206233981U CN201621352814.2U CN201621352814U CN206233981U CN 206233981 U CN206233981 U CN 206233981U CN 201621352814 U CN201621352814 U CN 201621352814U CN 206233981 U CN206233981 U CN 206233981U
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- Prior art keywords
- piston cooling
- engine
- cylinder
- piston
- nozzle
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- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of engine piston cooling unit, including piston cooling nozzle and at least provided with two engine cylinder-bodies of cylinder, piston cooling nozzle is correspondingly arranged in the casing wall lower section between engine cylinder-body adjacent cylinders, and piston cooling nozzle correspondence both sides cylinder is respectively arranged with a nozzle opening to piston base oil spout；The piston in two cylinders can be cooled down by a piston cooling nozzle, can in engine operation process efficient cooling piston base, save piston cooling nozzle usage quantity, save use cost；Piston cooling nozzle is directly installed on the reserved installation position of the crankcase of engine simultaneously, then engine cylinder-body 2 is connected with crankcase again, to realize the casing wall lower section that piston cooling nozzle is located between adjacent cylinders, install and easily realize, it is installed without being separately provided frock again, it is not only convenient and swift, erection schedule is saved, and also cost is substantially reduced.
Description
Technical field
The utility model is related to engine art, more particularly to a kind of engine piston cooling unit.
Background technology
Automobile in the process of running, in order to ensure piston of automobile engine head be unlikely to overheat, it is necessary to piston crown
Cooled down, the principle of cooling is that cooling oil duct is set in the head of piston, then the piston by being installed on cylinder head is cooled down
Nozzle, to spray cooling machine oil in cooling oil duct, the purpose of piston crown temperature is reduced to reach.Designed in traditional engine
In, a piston generally sets a cooling nozzles, and oil spout direction immobilizes, and needs to set multiple cold in multicylinder engine
But nozzle holder, and be arranged on cylinder body piston cooling nozzle, due to needing that combustion chamber and piston mounting structure are kept away. more
Allow, it usually needs special frock is set piston cooling nozzle is arranged on engine cylinder-body 2, installation procedure is complicated, and makes
With relatively costly.
Accordingly, it would be desirable to existing engine piston cooling unit is improved, in energy re-generating engine running efficiently
Rate cooling piston, and the usage quantity of parts can be saved, it is cost-effective.
Utility model content
In view of this, the utility model provides a kind of engine piston cooling unit, high in energy re-generating engine running
Efficiency cooling piston, and the usage quantity of parts can be saved, it is cost-effective.
Engine piston cooling unit of the present utility model, including piston cooling nozzle and at least provided with two hairs of cylinder
Motivation cylinder body, piston cooling nozzle is correspondingly arranged in the casing wall lower section between engine cylinder-body adjacent cylinders, piston cooling nozzle pair
Both sides cylinder is answered to be respectively arranged with a nozzle opening to piston base oil spout.
Further, the fuel feed hole of the crankcase oil leab for being communicated in engine is formed on the bottom of piston cooling nozzle,
Nozzle opening is connected with the fuel feed hole and is obliquely installed upwardly toward the piston base in respective side cylinder.
Further, the angle of the vertical center line of the corresponding side cylinder of the elongated central line of each nozzle opening be 32 °-
36°。
Further, the body of piston cooling nozzle upwardly extend be formed with it is spacing for the casing wall bottom between adjacent cylinders
The limited post of cooperation.
Further, the gap length between the casing wall bottom between the end face and adjacent cylinders of limited post is 1-2mm.
Further, the ring that location and installation is formed for the crankcase with engine is additionally provided with piston cooling nozzle
Shoulder.
Further, the body lower part of piston cooling nozzle is provided with the sealing ring mounting groove for installing sealing ring.
Further, fuel feed hole is Venturi tube structure.
Further, the symmetrical center line of each piston cooling nozzle two cylinder just adjacent to engine cylinder-body is set.
The beneficial effects of the utility model：Engine piston cooling unit of the present utility model, piston cooling nozzle is installed
On the crankcase of engine, and the casing wall lower section positioned between multicylinder engine adjacent cylinders, by piston cooling nozzle
Two nozzle openings for setting are carried out cold respectively to the vapour cylinder-in oil-jet positioned at piston cooling nozzle both sides with the bottom to piston
But, and connecting rod can also be cooled down；Engine piston cooling unit i.e. of the present utility model passes through a piston cooling nozzle
Piston in two cylinders can be cooled down, can in engine operation process efficient cooling piston base, save live
The usage quantity of cooling nozzles is filled in, use cost is saved；Piston cooling nozzle is directly installed on the crankcase of engine simultaneously
On the reserved installation position of body, engine cylinder-body 2 is connected with crankcase again then, to realize that it is adjacent that piston cooling nozzle is located at
Casing wall lower section between cylinder, installs and easily realizes, it is installed without being separately provided frock again, not only convenient and swift, section
About erection schedule, and cost is substantially reduced.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model Standard view；
Fig. 3 is the piston cooling spray nozzle structure schematic diagram in the utility model；
Fig. 4 is piston cooling nozzle and engine cylinder-body cooperation schematic diagram in the utility model.
Specific embodiment
Fig. 1 is the utility model structural representation, and Fig. 2 is the utility model Standard view, and Fig. 3 is this reality
With the piston cooling spray nozzle structure schematic diagram in new, Fig. 4 is that piston cooling nozzle is matched somebody with somebody with engine cylinder-body in the utility model
Schematic diagram is closed, dotted line represents machine oil oil spout direction in figure, as shown in the figure：The engine piston cooling unit of the present embodiment, including
Piston cooling nozzle 1 and the engine cylinder-body 2 at least provided with two cylinders (being cylinder 3 and cylinder 3a in figure), piston cooling spray
Mouth 1 is correspondingly arranged in the lower section of casing wall 4 between the adjacent cylinders of engine cylinder-body 2 (being cylinder 3 and cylinder 3a in figure), piston cooling spray
The corresponding both sides cylinder of mouth 1 (being cylinder 3 and cylinder 3a in figure) is respectively arranged with one to piston (being piston 6 and piston 6a in figure)
The nozzle opening (being nozzle opening 5 and nozzle opening 5a in figure) of bottom oil spout；As illustrated, engine cylinder-body 2 sets at least two vapour
Cylinder (being cylinder 3 and cylinder 3a in figure), for installing piston, can be two cylinders, three cylinders or four cylinder engine, in adjacent cylinders (in figure
Be cylinder 3 and cylinder 3a) the bottom part down of casing wall 4 be each provided with a piston cooling nozzle 1, piston cooling nozzle 1 can be to position
Cylinder (being cylinder 3 and cylinder 3a in figure) interior oil spout in its both sides is cooled down with to piston base；Wherein, piston cooling spray
Mouth 1 is arranged on the crankcase 7 of engine, and piston cooling nozzle mounting seat 10 is provided with the crankcase 7 of engine,
The lower end of piston cooling nozzle 1 is inserted directly into be formed in mounting seat and installs, and engine cylinder-body 2 is assembled with crankcase 7 again then,
To realize that piston cooling nozzle 1 is located at the lower section of casing wall 4 of adjacent cylinders (being cylinder 3 and cylinder 3a in figure)；Piston is in cylinder (figure
In be cylinder 3 and cylinder 3a) in pump, during engine acting, the heat transfer of generation to piston bottom
Portion, using above-mentioned cooling body, a piston cooling nozzle 1 can be in two cylinders (being cylinder 3 and cylinder 3a in figure)
Piston is cooled down, and sprays machine oil upward from cylinder (being cylinder 3 and cylinder 3a in figure) lower section, and the bottom to piston is entered
Row cooling, the heat produced during piston movement is taken away, and heat engine portion temperature is reduced so as to reach.
In the present embodiment, entering for the oil leab of crankcase 7 for being communicated in engine is formed on the bottom of piston cooling nozzle 1
Oilhole 8, nozzle opening (being nozzle opening 5 and nozzle opening 5a in figure) is connected and upwardly toward respective side cylinder (figure with the fuel feed hole 8
In be cylinder 3 and cylinder 3a) in piston base be obliquely installed；As illustrated, fuel feed hole 8 is the pore passage structure being vertically arranged,
It extends inward to be formed from the bottom of piston cooling nozzle 1, the fuel-displaced side of nozzle opening (being nozzle opening 5 and nozzle opening 5a in figure)
To upwardly and outwardly and towards the direction of piston base, to form incline structure.
In the present embodiment, the corresponding sides of elongated central line d of each nozzle opening (being nozzle opening 5 and nozzle opening 5a in figure)
The angle α of the vertical center line D of cylinder (being cylinder 3 and cylinder 3a in figure) is 32 ° -36 °；Wherein, preferred angle α can be
32 °, 33 °, 34 °, 35 ° or 36 °, i.e. two nozzle openings (in figure for nozzle opening 5 and nozzle opening 5a) and its respective respective side cylinder (figure
In be cylinder 3 and cylinder 3a) vertical center line angle it is equal, in this angular range, piston pumps from upper
To bottom dead center position, the machine oil that nozzle opening (by nozzle opening 5 and nozzle opening 5a in figure) sprays can reach piston base to stop,
And as the up and down motion of piston can carry out Oil injection cooling to the diverse location of piston base.
In the present embodiment, the body of piston cooling nozzle 1 is upwardly extended and is formed with for (being cylinder in figure with adjacent cylinders
3 and cylinder 3a) between the spacing cooperation in the bottom of casing wall 4 limited post 7；I.e. the bottom of casing wall 4 can prevent piston cooling nozzle 1 upward
Play, to ensure its working stability.
In the present embodiment, between the bottom of casing wall 4 between the end face and adjacent cylinders (being cylinder 3 and cylinder 3a in figure) of limited post
Gap length be 1-2mm；Preferably, can be 1mm, 1.5mm or 2mm, herein in interstice coverage, piston cooling nozzle tool
There is activity surplus, interference is installed to tackle the issuable movement under machine oil high pressure, and will not be formed with casing wall bottom, and
Casing wall bottom it is spacing under will not also deviate from from installation position.
In the present embodiment, it is additionally provided with piston cooling nozzle 1 and forms location and installation for the crankcase 7 with engine
Ring shoulder 8；It is easily formed positioning assembling.
In the present embodiment, the body lower part of piston cooling nozzle 1 is provided with the sealing ring mounting groove for installing sealing ring
9；For installing sealing ring, sealing is formed with to the connection between piston cooling nozzle and crankcase oil leab.
In the present embodiment, fuel feed hole 8 is Venturi tube structure；I.e. self-lubricating oil duct can be formed into the machine oil of fuel feed hole 8 and added
Effect, sprays with jet power higher to piston base.
In the present embodiment, two cylinder just adjacent to engine cylinder-body 2 of each piston cooling nozzle 1 (is cylinder 3 and vapour in figure
Cylinder 3a) symmetrical center line L set；I.e. each piston cooling nozzle 1 (is vapour in figure just to the adjacent cylinders of engine cylinder-body 2
Cylinder 3 and cylinder 3a) the bottom of casing wall 4 set, with preferable centering, and ensure that to both sides cylinder (be the He of cylinder 3 in figure
Cylinder 3a) in piston oil spout it is uniform.
Finally illustrate, above example is only used to illustrate the technical solution of the utility model and unrestricted, although ginseng
The utility model has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, without deviating from the objective and model of technical solutions of the utility model
Enclose, it all should cover in the middle of right of the present utility model.
Claims (9)
1. a kind of engine piston cooling unit, it is characterised in that：Including piston cooling nozzle and at least provided with two cylinders
Engine cylinder-body, the piston cooling nozzle is correspondingly arranged in the casing wall lower section between engine cylinder-body adjacent cylinders, the piston
Cooling nozzles correspondence both sides cylinder is respectively arranged with a nozzle opening to piston base oil spout.
2. engine piston cooling unit according to claim 1, it is characterised in that：The bottom of the piston cooling nozzle
Formation be communicated in engine crankcase oil leab fuel feed hole, the nozzle opening connected with the fuel feed hole and up towards
It is obliquely installed to the piston base in respective side cylinder.
3. engine piston cooling unit according to claim 1, it is characterised in that：Prolong at the center of each nozzle opening
The angle of the vertical center line of the corresponding side cylinder of line long is 32 ° -36 °.
4. engine piston cooling unit according to claim 1, it is characterised in that：The body of the piston cooling nozzle
Upwardly extend the limited post being formed with for the spacing cooperation in casing wall bottom between adjacent cylinders.
5. engine piston cooling unit according to claim 4, it is characterised in that：The end face of the limited post with it is adjacent
The gap length between casing wall bottom between cylinder is 1-2mm.
6. engine piston cooling unit according to claim 1, it is characterised in that：Also set on the piston cooling nozzle
It is equipped with the ring shoulder that location and installation is formed for the crankcase with engine.
7. engine piston cooling unit according to claim 1, it is characterised in that：The body of the piston cooling nozzle
Bottom is provided with the sealing ring mounting groove for installing sealing ring.
8. engine piston cooling unit according to claim 2, it is characterised in that：The fuel feed hole is venturi knot
Structure.
9. the engine piston cooling unit according to claim 1-8 any claims, it is characterised in that：It is each described
The symmetrical center line of piston cooling nozzle two cylinder just adjacent to engine cylinder-body is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621352814.2U CN206233981U (en) | 2016-12-09 | 2016-12-09 | Engine piston cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621352814.2U CN206233981U (en) | 2016-12-09 | 2016-12-09 | Engine piston cooling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206233981U true CN206233981U (en) | 2017-06-09 |
Family
ID=58991730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621352814.2U Active CN206233981U (en) | 2016-12-09 | 2016-12-09 | Engine piston cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206233981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762079A (en) * | 2016-12-09 | 2017-05-31 | 重庆小康工业集团股份有限公司 | Engine piston cooling body |
-
2016
- 2016-12-09 CN CN201621352814.2U patent/CN206233981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762079A (en) * | 2016-12-09 | 2017-05-31 | 重庆小康工业集团股份有限公司 | Engine piston cooling body |
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