CN202194713U - Diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston - Google Patents
Diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston Download PDFInfo
- Publication number
- CN202194713U CN202194713U CN2011202651333U CN201120265133U CN202194713U CN 202194713 U CN202194713 U CN 202194713U CN 2011202651333 U CN2011202651333 U CN 2011202651333U CN 201120265133 U CN201120265133 U CN 201120265133U CN 202194713 U CN202194713 U CN 202194713U
- Authority
- CN
- China
- Prior art keywords
- piston
- nozzle
- diesel engine
- cooling
- oilhole
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston, comprising a diesel engine body 1, a bearing bush 2, a crank shaft 3, a cylinder liner 6 and a piston connection rod assembly 7, a diesel engine body inner oil hole 4 arranged in an inner cavity of the diesel engine body, a piston oil return channel 8 on the piston and a cooling nozzle 5 mounted on the diesel engine body inner oil hole. The cooling nozzle 5 is a one-way valve mechanism formed by a nozzle body 9, a steel ball 10, a compression spring 11 and a spray head 12. The nozzle is mounted and fixed on the diesel engine body, the oil is continuously sprayed into the inner cavity of the piston and the inner cavity of the piston is continuously cooled, so as to effectively solve the problem that the performance of the diesel engine is affected by over heat generated during the quick speed operation of the large cylinder diameter diesel piston.
Description
Technical field
The utility model relates to a kind of diesel engine, specifically a kind ofly has a diesel engine that cooling jet can be forced the oil spout cooling piston.
Background technique
The piston of two cylinders, array, water-cooled, four-stroke, big cylinder-diameter diesel engine directly receives high-temperature fuel gas and periodically heats, and instantaneous maximum gas temperature can reach 1800～2600 ℃, and aluminium piston-top surface temperature can reach 350 ℃.Piston temperature is too high will to produce following harmful effect: 1. the thermal stress of piston and thermal distortion are excessive; 2. when temperature surpassed 300～350 ℃, the intensity of aluminium piston material sharply descended; 3. when the first annular groove temperature surpasses 180～220 ℃, be prone to cause the deterioration of lubricant gum deposit, the cause piston ring is stuck.The piston that heat load is too high must be taked cooling method, and the heat of passing to piston is left rapidly, and the temperature of piston is dropped within the scope of allowing.
Summary of the invention
The utility model its objective is through on body, installing and fixing nozzle, and piston cavity is carried out continuous oil spout cooling, produces overheated when the operation fast and influences problem such as diesel engine performance to solve the big cylinder-diameter diesel engine piston.
The purpose of the utility model is achieved through following technological scheme:
A kind ofly have a diesel engine that cooling jet can be forced the oil spout cooling piston; Comprise diesel-engine body 1, bearing shell 2, bent axle 3, cylinder sleeve 6 and Piston and rod assembly 7, also include oilhole 4 in the body that is arranged on the body inner chamber, be arranged on the piston drainback passage 8 on the piston and be installed in the cooling jet 5 on the oilhole in the body.
Oilhole 4 is arranged on upper right, diesel-engine body 1 inner chamber crankshaft support seat hole in the body, and oilhole 4 communicates with bearing shell 2 oilholes in the body.Piston drainback passage 8 is arranged on place, piston cavity wrist pin both sides.
The optical axis of the end segment of nozzle body 9 is arranged in the interior oilhole 4 of body on the diesel-engine body 1; Shower nozzle 12 is through being threaded in nozzle body 9 tops; Steel ball 10 is arranged in the last sector hole of nozzle body 9 with pressure spring 11, and steel ball 10 is arranged at the bottom of the last sector hole of nozzle body 9, and the lower end of pressure spring 11 is against on the steel ball 10, and its upper end is against the tail end of shower nozzle 12, and pressure spring 11 working pressures are: 200KP.Steel ball 10 diameter dimensions are greater than nozzle body 9 hypomere aperture sizes.
Piston drainback passage 8 is arranged on place, piston cavity wrist pin both sides.
The technique effect of the utility model is embodied in following several aspect:
1, Simple in structure, only need processing one mounting hole on body, connect oil circuit;
2, On nozzle, install pressure valve additional, just oil spout when guaranteeing that oil pressure is high has guaranteed the lubrication oil of diesel engine effectively;
3, Need not to design again piston, stay drainback passage to get final product at the piston pin hole place.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial enlarged drawing of cooling jet 5 among Fig. 1.
Among the figure: oilhole 4, cooling jet 5, cylinder sleeve 6, Piston and rod assembly 7, piston drainback passage 8, nozzle body 9, steel ball 10, pressure spring 11, shower nozzle 12 in diesel-engine body 1, bearing shell 2, bent axle 3, the body.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done further to describe through instance.
Embodiment:
A kind ofly have a diesel engine that cooling jet can be forced cooling piston; Comprise diesel-engine body 1, bearing shell 2, bent axle 3, cylinder sleeve 6 and Piston and rod assembly 7, also include oilhole 4 in the body that is arranged in the body, be arranged on the piston drainback passage 8 on the piston and be installed in the cooling jet 5 on the oilhole in the body.
Oilhole 4 is arranged on upper right, diesel-engine body 1 inner chamber crankshaft support seat hole in the body, and oilhole 4 communicates with bearing shell 2 oilholes in the body.(see figure 1) its objective is and guaranteeing that bent axle 3 rotates when driving Piston and rod assemblies 7 and moving to lower dead centre, cooling jet 5 can not and piston interference, and machine oil can both spray into inner chamber.
Piston drainback passage 8 is arranged on place, piston cavity wrist pin both sides.
Working principle: cooling jet 5 is fitted in the body of inner chamber of body 1 in the oilhole 4; Oilhole on the hole of cooling jet 5 and the bearing shell 2 communicates; Machine oil is got into the following sector hole place of the nozzle body 9 of cooling jet 5 by bearing shell 2 oilhole 4 in body; Bent axle 3 rotates drive Piston and rod assembly 7 and moves fast, and the interior temperature of body is risen gradually, and the body oil pressure raises gradually thereupon.When oil pressure rose to 200KP, machine oil backed down the one-way valve valve of cooling jet 5, and from the nozzle bore of shower nozzle 12 ejection directive piston cavity, machine oil spray piston cavity is after make a living and get back into oily passage 8 and flow back to oil sump.
The mounting point of cooling jet 5 and angle will design, and guarantee that bent axle 3 rotates when driving Piston and rod assemblies 7 and moving to lower dead centre, cooling jet 5 can not and piston interference, and machine oil can both the injection into pistion inner chamber.
Claims (2)
1. one kind has the diesel engine that cooling jet can be forced the oil spout cooling piston; Comprise diesel-engine body (1), bearing shell (2), bent axle (3), cylinder sleeve (6) and Piston and rod assembly (7), it is characterized in that: also include oilhole (4) in the body that is arranged on the body inner chamber, be arranged on the piston drainback passage (8) on the piston and be installed in the cooling jet (5) on the oilhole in the body;
Oilhole (4) is arranged on upper right, diesel-engine body (1) inner chamber crankshaft support seat hole in the said body, and oilhole (4) communicates with bearing shell (2) oilhole in the body; Said piston drainback passage (8) is arranged on place, piston cavity wrist pin both sides;
Said cooling jet (5) is made up of nozzle body (9), steel ball (10), pressure spring (11) and shower nozzle (12);
Nozzle body (9) is a tubular body, and its outside end segment is optical axis and is provided with the round platform shoulder; Its inside is two sections ladder concentric holes, and last sector hole more slightly is provided with internal thread at its top, and following sector hole carefully is provided with big chamfering at its place, afterbody aperture;
Shower nozzle (12) is the circle step body, and its afterbody is provided with outside thread, and its center is provided with nozzle bore;
The internal thread of the outside thread size of said shower nozzle (12) afterbody and nozzle body (9) head sections is measure-alike;
The optical axis outside dimension of the end segment of said nozzle body (9) is identical with interior oilhole (4) internal diameter size of body;
The optical axis of the end segment of nozzle body (9) is arranged in the interior oilhole (4) of body on the diesel-engine body (1); Shower nozzle (12) is through being threaded in nozzle body (9) top; Steel ball (10) is arranged in the last sector hole of nozzle body (9) with pressure spring (11), and said steel ball (10) is arranged at the bottom of the last sector hole of nozzle body (9); The lower end of said pressure spring (11) is against on the steel ball (10), and its upper end is against the tail end of shower nozzle (12);
Said steel ball (10) diameter dimension is greater than nozzle body (9) hypomere aperture size;
Said nozzle body (9), steel ball (10), pressure spring (11) and shower nozzle (12) constitute one-way valve mechanism.
2. a kind of diesel engine that cooling jet can be forced the oil spout cooling piston that has according to claim 1 is characterized in that: said pressure spring (11) working pressure is: 200KP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202651333U CN202194713U (en) | 2011-07-26 | 2011-07-26 | Diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202651333U CN202194713U (en) | 2011-07-26 | 2011-07-26 | Diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194713U true CN202194713U (en) | 2012-04-18 |
Family
ID=45949629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202651333U Expired - Fee Related CN202194713U (en) | 2011-07-26 | 2011-07-26 | Diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194713U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470357A (en) * | 2013-06-24 | 2013-12-25 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine piston cooling nozzle structure and control method |
| CN106523120A (en) * | 2016-12-24 | 2017-03-22 | 重庆小康工业集团股份有限公司 | Press-fitting type piston cooling nozzle assembly |
| CN106762191A (en) * | 2016-12-24 | 2017-05-31 | 重庆小康工业集团股份有限公司 | Press-fit the cylinder block of piston cooling nozzle |
-
2011
- 2011-07-26 CN CN2011202651333U patent/CN202194713U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470357A (en) * | 2013-06-24 | 2013-12-25 | 浙江吉利汽车研究院有限公司杭州分公司 | Engine piston cooling nozzle structure and control method |
| CN103470357B (en) * | 2013-06-24 | 2016-01-20 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of engine piston cooling nozzle structure and controlling method |
| CN106523120A (en) * | 2016-12-24 | 2017-03-22 | 重庆小康工业集团股份有限公司 | Press-fitting type piston cooling nozzle assembly |
| CN106762191A (en) * | 2016-12-24 | 2017-05-31 | 重庆小康工业集团股份有限公司 | Press-fit the cylinder block of piston cooling nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6480535B2 (en) | Piston having oil-cooled passage and method for constructing the same | |
| CN102388213B (en) | Piston with crown cooling jet | |
| CN102705101A (en) | Cooling system for internal-combustion engine piston | |
| CN103541813A (en) | Visual direct-injection gasoline engine | |
| CN202194713U (en) | Diesel engine with a cooling nozzle capable of forcibly spraying oil and cooling a piston | |
| CN204099025U (en) | A kind of engine piston cooling structure | |
| JP5691511B2 (en) | Oil supply device for piston for internal combustion engine | |
| WO2011073510A1 (en) | Internal combustion piston engine assembly | |
| CN204163871U (en) | The strong cooling steel piston of a kind of gas engine | |
| CN109653895A (en) | A kind of device improving small end of connecting rod lubrication state | |
| CN202789179U (en) | Cooling system of combustion motor piston | |
| CN202220670U (en) | Air-cooling diesel or gasoline engine body with a detachable cylinder sleeve | |
| CN109676338B (en) | Piston cooling nozzle assembly tool and assembly method | |
| CN203532074U (en) | Visual direct-injection gasoline engine | |
| WO2013046242A3 (en) | Piston and improved connecting rod for use in internal combustion engine | |
| CN219711682U (en) | Cooling ring cavity structure of diesel engine piston | |
| CN101929404A (en) | Piston with steel top and aluminum skirt for 230SG type gas engine | |
| CN213175809U (en) | Crank link mechanism with cooling oil duct | |
| CN204942250U (en) | A kind of connecting rod component of motor | |
| CN205823363U (en) | Piston die cavity lubricating structure | |
| CN211975185U (en) | Piston beneficial to cold start and wear reduction | |
| CN202560415U (en) | Improved fuel injection pump assembly | |
| CN202325884U (en) | Carbon material and metal material combined type piston | |
| CN207813768U (en) | A kind of Split piston that head cover cooling is reinforced | |
| CN201246209Y (en) | Chain type 125 motorcycle engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120726 |