CN102852618B - Cooling water jacket for diesel engine - Google Patents
Cooling water jacket for diesel engine Download PDFInfo
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- CN102852618B CN102852618B CN201210366877.3A CN201210366877A CN102852618B CN 102852618 B CN102852618 B CN 102852618B CN 201210366877 A CN201210366877 A CN 201210366877A CN 102852618 B CN102852618 B CN 102852618B
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- cooling water
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- cylinder head
- water jacket
- jacket
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Abstract
The invention belongs to the technical field of diesel engines and provides a cooling water jacket for a diesel engine. The provided cooling water jacket (1) of the diesel engine is a independently-arranged part and is integrated with a diesel engine body (19) and an air cylinder cover (9) by connecting; the cooling water jacket (1) is used for cooling a diesel engine air cylinder sleeve (15), a piston (12) and a piston ring (13); a cooling water cavity (4) is cast inside the cooling water jacket (1) of the diesel engine; the upper part of the cooling water cavity (4) is pressed on an air cylinder hole mounting surface through the air cylinder sleeve (15); the lower part of the cooling water cavity (4) is sealed by an O-shaped ring (10) on a support flange of the air cylinder sleeve (15) and forms radial support with the support flange; and the cooling water cavity (4) is communicated with a cooling water cavity of the air cylinder cover (9) through a cooling water feeding channel (8). After the cooling water jacket disclosed by the invention is adopted, the structure of a diesel engine body is greatly simplified, the cooling water cavity and cooling water inlets and outlets cast in the machine body are reduced as well as the height of the machine body and the complexity of a casting and processing technique are reduced.
Description
Technical field
The invention belongs to Design Technology for Diesels technical field, propose a kind of Water Jacket.
Background technique
Diesel engine duration of work, the fuel gas temperature in cylinder can up to 2500 DEG C, and the heat part produced of burning is converted into mechanical work, makes diesel engine externally export acting; The waste gas that part heat is discharged is taken away; Some heat passes to the parts such as cylinder head, piston, piston ring and valve.The Main Function of diesel engine cooling system is by Heating Components, and the heat as cylinder head, cylinder liner, piston, piston ring, valve etc. is dispersed in air and goes, and ensures the normal working temperature of diesel engine.Cooling system is primarily of compositions such as water pump, fan, radiator, thermostat and cooling jackets.Wherein the major function of cooling jacket is cooling air cylinder sleeve, piston, piston ring etc.
Diesel engine can be divided into air-cooled diesel engine and water-cooled diesel engine by the type of cooling, different according to the method that cooling water carries out circulating in diesel engine, can be divided into again natural circulation cooling and pump circulation two class.Diesel engines at present many employings pump circulation constituent, diesel-engine body is primarily of cast iron manufacture, well and uniformly cool to ensure that each cylinder has, all cooling water chamber is furnished with in water-cooled diesel-engine body, the structural type of cooling water chamber has two kinds: one is along being an integral cavity in whole cylinder-bore, after cylinder liner is loaded cylinder-bore, with cylinder liner outer wall looping space, cooling water directly contacts with cylinder liner outer wall, is called wet cylinder liner; Another kind is around cylinder-bore, and be cast with a closed annular space, cylinder liner outer wall and annular space endoporus closely cooperate, and cooling water only flows through in the annular space closed, and does not contact, be called dry liner with cylinder liner.Above-mentioned housing construction is all very complicated, and require complicated to body casting and processing technology, reject rate is high, body poor rigidity, and complete machine dismounting is very inconvenient.
Summary of the invention
For solving the problems of the technologies described above, the present invention seeks to propose a kind of Water Jacket.
The present invention for the technological scheme completing its invention task and take is:
A kind of Water Jacket, described Water Jacket is the parts arranged separately and is integrally formed with diesel-engine body and cylinder head by the mode of powerful Stud connection, to cylinder jacket of diesel engine, piston, piston ring Heating Components cools: described Water Jacket is an approximate rectangular structure, between described diesel-engine body and described cylinder head, with described cylinder head, described cylinder liner and described piston, described connecting rod forms diesel powered unit together, described diesel powered unit is connected as one by the powerful stud of body and described diesel-engine body, described Water Jacket upper surface is combined with described cylinder head, and described Water Jacket lower surface plane on described diesel-engine body is combined, described Water Jacket cast inside has cooling water chamber, described cooling water chamber is ring-type semi-circular recesses, the top of described cooling water chamber is pressed on the sealing of cylinder-bore attachment face by cylinder liner, and the supporting lip that the bottom of described cooling water chamber is consisted of the O type circle be arranged in cylinder liner outer wall annular seal groove seals and forms radial support with described supporting lip, arrange an outside water intake, described outside water intake is communicated with described cooling water chamber, and described cooling water chamber is communicated with Cooling Water Jacket of Cylinder Head by cooling water water-supply line, diesel coolant enters cylinder head internal cooling water cavity by cooling water water-supply line and carries out cool cycles after the circulation of cooling jacket internal cooling.
Described Water Jacket is processed with the powerful threaded stud hole of body, described diesel-engine body, described cylinder head has powerful threaded stud hole and corresponding with the powerful threaded stud hole position of the body in Water Jacket; In order to described diesel-engine body, described Water Jacket, described cylinder head are integrally connected by the powerful stud of body; Described Water Jacket is processed with valve actuating push rod hole, the attachment screw hole for being connected with cylinder head, positioning pin hole for assembling with cylinder head, for the installation of valve actuating push rod and with the location of cylinder head, is connected.
Described cooling water water-supply line is a cylindrical hole, and bottom communicates with cooling water chamber, and top passes to described Water Jacket upper surface, communicates with cylinder head internal cooling water cavity,
Described Water Jacket adopts and processes with the cast blank of described diesel-engine body same material, replaces that diesel engine is original is cast in internal body cooling water chamber, carries out the cooling of the Heating Components such as cylinder jacket of diesel engine, piston, piston ring.The present invention structurally utilizes the structural type of original diesel-engine body, being designed to is an approximate rectangular structure, after adopting this structure, reduce original diesel-engine body cylinder bore upper to crankshaft axis height, the height of described Water Jacket is identical with the height that described diesel-engine body reduces, the present invention and cylinder head, cylinder liner, piston, the component such as connecting rod form diesel powered unit together, wherein cylinder head supplementary processing two screw holes be connected with Water Jacket of the present invention, cylinder liner has carried out the adaptation design of applicable power unit integral disassembly, assembly on the basis keeping original height, power unit is connected as one by the powerful stud of body and diesel-engine body, ensure that cooling jacket upper surface (namely with cylinder head junction plane) is identical with original diesel engine height to the height of crankshaft axis, original diesel engine connecting rod and piston assembly can remain unchanged, decrease the design of diesel engine, difficulty of processing, reduce design, processing cost.
The present invention is the part of most critical in diesel powered unit composition, utilize the hot simulation analysis software of finite element working procedure, calculate Water Jacket of the present invention and traditional wet cooling jacket to cylinder liner and piston, piston ring thermo parameters method situation, and by actual installation test, demonstrate the cooling effect that can reach former wet type cooling jacket after adopting cooling jacket of the present invention.
After adopting the present invention, diesel body structure significantly simplifies, decrease cooling water chamber, cooling water intake-outlet that diesel-engine body is cast, reduce the complexity of diesel engine height and casting, processing technology, add body Rigidity and strength, improve the reliability of diesel engine work.And the dismounting of diesel powered unit is very simple and efficient, the assembling of diesel powered unit can complete at parts assembly line, need not join at the enterprising luggage of complete machine, assemble rear diesel powered whole unit and loaded diesel-engine body, assembly technology can have been simplified, improved assembly precision, shortened installation time, enhanced productivity.
Accompanying drawing explanation
Fig. 1 is Water Jacket plan view.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is diesel powered unit erection drawing.
Fig. 4 is existing diesel power unit erection drawing.
Fig. 5 is diesel powered unit and body erection drawing.
In figure: 1. Water Jacket; 2. cooling water intake; 3. the powerful threaded stud hole of body; 4. cooling water chamber; 5. valve actuating push rod hole; 6. attachment screw hole; 7. positioning pin hole; 8. cooling water water-supply line; 9. cylinder head; 10.O type circle; 11. attachment screws; 12. pistons; 13. piston rings; 14. connecting rods; 15. cylinder liner; The powerful stud of 16. bodies; 17. existing diesel bodies; 18. diesel powered unit; 19. diesel-engine bodies; 20. cranks.
Embodiment
In conjunction with the accompanying drawing provided, embodiments of the invention are illustrated:
As shown in Figure 1, Water Jacket 1 of the present invention is independently parts, adopts cast blank to process, carries out the cooling of the Heating Components such as cylinder liner 15, piston 12, piston ring 13.Water Jacket 1 structurally utilizes the structural type of original diesel-engine body 17, it is an approximate rectangular structure, original diesel-engine body 17 cylinder bore upper is reduced to crankshaft axis height after adopting this structure, reduce the height being highly Water Jacket 1, Water Jacket 1 and cylinder head 9, cylinder liner 15, piston 12, connecting rod 14 grade forms diesel powered unit 18 together, diesel powered unit 18 is connected as one with diesel-engine body 19 by the powerful stud 16 of body, ensure that Water Jacket 1 upper surface (namely with cylinder head 9 junction plane) maintains original height to crankshaft axis, former diesel engine crank 20, connecting rod 14 and piston 12 assembly can remain unchanged, decrease the design of diesel engine, difficulty of processing, reduce design, processing cost.
Water Jacket 1 upper surface (with cylinder head 9 junction plane) geomery and existing diesel body 17 cylinder bore upper consistent, lower surface is connected with plane on diesel-engine body 19, by pretightening force and diesel-engine body 19 end face seal of the powerful stud 16 of body.Water Jacket 1 cast inside has cooling water chamber 4, cooling water chamber 4 top is pressed on the sealing of diesel-engine body 19 cylinder-bore attachment face by cylinder liner 15, and the supporting lip that bottom is consisted of the O type circle 10 be arranged in cylinder liner 15 outer wall annular seal groove seals and forms radial support with described supporting lip.Cooling water enters cooling water chamber 4 by cooling water intake 2, upwards enters cylinder head 9 cooling water chamber, flowed out after cooling air cylinder cap 9 by cylinder head 9 backwater mouth after cooling air cylinder sleeve 15, piston 12, piston ring 13 along cooling water water-supply line 8; Described Water Jacket 1 is processed with the powerful threaded stud holes 3 of four bodies, described body 19, cylinder head 9 has powerful threaded stud hole and corresponding with powerful threaded stud hole 3 position of the body in Water Jacket 1; In order to diesel-engine body 19, described Water Jacket 1, cylinder head 9 are integrally connected by body powerful stud 16 (this stud is fixed on body due to one end, is therefore called as the powerful stud 16 of body); Described Water Jacket 1 has two 5, two, valve actuating push rod holes of installing in order to valve actuating push rod in order to 6, two, attachment screw hole being connected with cylinder head 9 in order to the positioning pin hole 7 with cylinder head 9 location fit; Located by positioning pin hole 7 by locating stud between Water Jacket 1 and cylinder head 9, connected by two attachment screws 11, diesel powered unit 18 is connected as a whole assembling.Diesel powered unit 18, diesel-engine body 19 link together and form diesel engine entirety by the powerful stud 16 of body.
Claims (1)
1. a Water Jacket, described Water Jacket (1) is the parts arranged separately and is integrally formed with diesel-engine body (19) and cylinder head (9) by the mode that the powerful stud (16) of body connects, and cools cylinder jacket of diesel engine (15), piston (12), piston ring (13) Heating Components, described Water Jacket (1) is an approximate rectangular structure, be positioned between diesel-engine body (19) and cylinder head (9), form diesel powered unit (18) together with cylinder head (9), cylinder liner (15) and piston (12), connecting rod (14), described diesel powered unit (18) is connected as one with diesel-engine body (19) and cylinder head (9) by the powerful stud (16) of body, described Water Jacket (1) upper surface and cylinder head (9) combine, and described cooling jacket (1) lower surface is combined with the upper plane of diesel-engine body (19), described Water Jacket (1) cast inside has cooling water chamber (4), the top of described cooling water chamber (4) is pressed on the sealing of cylinder-bore attachment face by cylinder liner (15), cooling jacket (1) arranges a cooling water water inlet (2), described cooling water water inlet (2) is communicated with described cooling water chamber (4), described Water Jacket (1) is processed with the powerful threaded stud hole (3) of body, described diesel-engine body (19), cylinder head (9) has powerful threaded stud hole and corresponding with powerful threaded stud hole (3) position of the body in Water Jacket (1), in order to pass through the powerful stud (16) of body by described diesel-engine body (19), described Water Jacket (1), cylinder head (9) links into an integrated entity, described Water Jacket (1) is processed with the attachment screw hole (6) for being connected with cylinder head (9), it is characterized in that: the cooling water chamber (4) of described Water Jacket (1) is ring-type semi-circular recesses, the supporting lip that the bottom of described cooling water chamber (4) is consisted of the O type circle (10) be arranged in cylinder liner (15) outer wall annular seal groove seals and forms radial support with described supporting lip, described cooling water chamber (4) is communicated with cylinder head (9) cooling water chamber by cooling water water-supply line (8), diesel coolant enters cylinder head (9) internal cooling water cavity by cooling water water-supply line (8) and carries out cool cycles after the circulation of Water Jacket (1) internal cooling, Water Jacket (1) is processed with valve actuating push rod hole (5), positioning pin hole (7) for assembling with cylinder head (9), for the installation of valve actuating push rod and with the location of cylinder head (9), is connected, described cooling water water-supply line (8) is a cylindrical hole, and bottom communicates with cooling water chamber (4), and top passes to described Water Jacket (1) upper surface, communicates with cylinder head (9) internal cooling water cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366877.3A CN102852618B (en) | 2012-09-28 | 2012-09-28 | Cooling water jacket for diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210366877.3A CN102852618B (en) | 2012-09-28 | 2012-09-28 | Cooling water jacket for diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN102852618A CN102852618A (en) | 2013-01-02 |
| CN102852618B true CN102852618B (en) | 2015-07-15 |
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| CN201210366877.3A Active CN102852618B (en) | 2012-09-28 | 2012-09-28 | Cooling water jacket for diesel engine |
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| CN108979886A (en) * | 2018-08-18 | 2018-12-11 | 全椒县全动机械有限公司 | A kind of Water Jacket and its manufacturing process |
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| JP3858348B2 (en) * | 1997-06-04 | 2006-12-13 | スズキ株式会社 | Outboard motor exhaust system |
| JP4388707B2 (en) * | 2001-02-15 | 2009-12-24 | ヤンマー株式会社 | Engine cylinder block structure |
| JP4446836B2 (en) * | 2004-08-25 | 2010-04-07 | 本田技研工業株式会社 | Auxiliary equipment arrangement structure in internal combustion engine for vehicle |
| CN102562344B (en) * | 2010-12-22 | 2015-04-29 | 光阳工业股份有限公司 | Air cylinder of internal combustion engine |
| CN202811097U (en) * | 2012-09-28 | 2013-03-20 | 河南柴油机重工有限责任公司 | Diesel engine cooling water jacket |
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