WO2009003349A1 - Corps d'un moteur diesel à refroidissement par circulation d'air - Google Patents

Corps d'un moteur diesel à refroidissement par circulation d'air Download PDF

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Publication number
WO2009003349A1
WO2009003349A1 PCT/CN2008/000653 CN2008000653W WO2009003349A1 WO 2009003349 A1 WO2009003349 A1 WO 2009003349A1 CN 2008000653 W CN2008000653 W CN 2008000653W WO 2009003349 A1 WO2009003349 A1 WO 2009003349A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
cylinder block
cylinder
diesel engine
crankcase
Prior art date
Application number
PCT/CN2008/000653
Other languages
English (en)
Chinese (zh)
Inventor
Henglin Xiao
Original Assignee
Wuxi Kipor Power Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Kipor Power Co., Ltd. filed Critical Wuxi Kipor Power Co., Ltd.
Publication of WO2009003349A1 publication Critical patent/WO2009003349A1/fr

Links

Classifications

    • 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
    • F01P1/00—Air cooling
    • F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
    • 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
    • F01P1/00—Air cooling
    • F01P1/06—Arrangements for cooling other engine or machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling
    • 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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling
    • F02F1/06—Shape or arrangement of cooling fins; Finned cylinders

Definitions

  • the present invention relates to a tilt cylinder engine, and more particularly to a body of a small air-cooled diesel engine, and belongs to the technical field of power plants. Background technique
  • a small air-cooled diesel engine generally adopts an open cooling air passage near the cylinder block, and is cooled by a fan or a natural wind. In this way, the cooling air flow passage and the flow distribution are uncontrollable, the cooling effect is poor, and the noise is relatively low. Large, affecting the use of the engine. Summary of the invention
  • the technical problem to be solved by the present invention is to provide an engine body cooling device with a cooling air flow passage and a flow distribution controllable, a good cooling effect, and a low noise.
  • a body of an air-cooled diesel engine including a cylinder block, a crankcase, a pusher chamber, a wind deflector, and the like.
  • An air duct is disposed on each side of the cylinder body, and the air duct is a ventilation chamber formed by a wind deflector integrated with the crankcase on both sides of the cylinder body and a heat sink on the cylinder block and the cylinder body, and the ventilation chamber Located on the upper and lower sides of the cylinder.
  • the cylinder block, the crankcase, the air deflector, and the heat sink are integrally formed by casting techniques.
  • the pusher chamber is located on the upper side of the inclined cylinder, and the cross section is a rectangular cavity with rounded corners, which is relatively independent.
  • the inner wall and the upper part of the cylinder block form a cavity through which the cooling air passes to isolate the push rod from the cylinder body, forming an air deflector having both guiding cooling air and a heat shielding effect on the push rod.
  • Hot plate A lower air deflector is arranged on the lower side of the cylinder block.
  • the air deflector is parallel to the cylinder surface and extends from the top of the cylinder body toward the crankcase and is in communication with the structure.
  • the air deflector parallels the lower side of the cylinder body to the cylinder center line.
  • the top ends of the arranged fins are joined together to form a grid structure, which constitutes another duct on the underside of the cylinder.
  • the air deflector is also connected to the starter motor connecting plate near the crankcase end.
  • the starter motor connecting plate is arranged below the tilting cylinder body away from the crankcase end cover side, and the connecting plane is perpendicular to the crankshaft center line.
  • the air deflector on the lower side of the cylinder is connected to the starter motor connecting plate and the crankcase structure to form a penetrating body reinforcing structure, and the installation of the starter motor can fully utilize the space in the lower portion of the tilting cylinder.
  • the ventilating chambers on both sides of the cylinder block are closed chambers with inlets and outlets.
  • the cooling air pressurized by the wind impeller is forcedly cooled by the ventilating chamber according to the guiding route of the body.
  • the geometry of the ventilation chamber and the shape of the air deflector make the flow of the cooling air flow more reasonable, and the cooling at the high temperature surface such as the cylinder block and the lubricating oil pool is more sufficient, and the cooling effect is enhanced;
  • the inner wall of the push rod and the upper part of the cylinder block form a cavity through which the cooling air passes to form a heat shield against the push rod, which can protect the push rod from being excessively expanded due to the strong heating of the cylinder block (because the push rod is a valve drive transmission)
  • the part with the largest linear dimension in the chain has the greatest influence on the change of the valve clearance. Therefore, this design can reduce the cold valve clearance and reduce the impact strength between the valve-driven parts during the initial cold start of the engine. Helps reduce mechanical noise.
  • the manufacturing scheme that integrates the crankcase, the air deflector, and the heat sink by the casting method also reduces the number of parts of the engine, makes the engine assembly easier, has a more compact structure, is more reliable, and is more compact.
  • Figure 1 is a schematic cross-sectional view of an engine of the present invention.
  • Fig. 2 is a cross-sectional view taken along line A-A of the fuel injection pump of Fig. 1.
  • Fig. 3 is a view showing the removal of the main hood and the wind impeller, etc., to the rear of the crankshaft axis.
  • Figure 4 is a schematic view of the noise-insulated outdoor enclosure and muffler removed from the opposite direction of the view of Figure 3.
  • Figure 5 is a cross-sectional view taken along line D-D of Figure 4.
  • the air-cooled diesel engine body comprises a cylinder block 1, a crankcase 2, a pusher chamber 4, a wind deflector 6, a starter motor connecting plate 20, and an independent air duct is disposed on both sides of the cylinder block 1, the wind
  • the track is cylinder 1
  • the air guiding plate 6 integrally formed with the crankcase 2 on both sides and the ventilating cavity 13 formed by the heat sink 7 on the cylinder block 1 and the cylinder block 1 are located on the upper and lower sides of the cylinder block 1.
  • cooling air enters from the inlet of the main hood 9, is pressurized by the wind impeller 10, and the cooling air is sent out through the volute passage.
  • the cooling air is guided through the ventilation chamber 13 (a, b) to cool the cylinder 1, and also through the cylinder head ventilation chamber 14
  • the cylinder head 5 is cooled, and finally enters the soundproofing chamber 11 on the crankcase end cover 18, blows through the muffler 12, and is discharged from the exhaust port 15.
  • Another cooling air passes from the lower portion of the main hood 9 through the ventilating chamber 13c into the venting chamber surrounded by the bottom hood 8 and the lubricating oil pool 17, while passing through the venting chambers 13d and 13e, blowing through the lower surface of the lubricating oil pool 17 and
  • the two sides cool the oil 16 accommodated therein, and then enter the soundproofing chamber 11, through the space formed between the muffler 12 and the crankcase end cover 18, the muffler 12 and the crankcase end cover 18 are cooled, and the hot air is discharged from the exhaust port 15.
  • a rear air deflector 19 is disposed on the crankcase end cover 18 corresponding to the position of the venting chamber 13b, which can force the cooling air passing through the venting chamber 13b to be steered through the surface of the cylinder block 1 which is not easily blown to the leeward side. A, take more heat and make the temperature around the cylinder more close.
  • the inner wall of the pusher chamber 4 (i.e., the air deflector 6a) separates the push rod 3 from the cylinder block 1 to guide the flow of the cooling air and to isolate the heat transfer between the cylinder block 1 and the push rod 3.
  • the wind deflector 6a on the lower side of the cylinder, the starter motor connecting plate 20, and the crankcase 2 are combined to form a reinforcing structure that penetrates the body, which greatly improves the rigidity of the body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un corps de moteur diesel à refroidissement par circulation d'air comprenant un bloc-cylindres (1), un carter (2), une chambre (4) de poussoir de soupape et un système de lubrification, les deux côtés du bloc-cylindres (1) étant pourvus de passages à air indépendants, ces passages à air formant des chambres de ventilation constituées d'un déflecteur (6) d'air et d'un bloc-cylindres (1) et des ailettes de radiateur du bloc-cylindres. Le corps du moteur diesel à refroidissement par circulation d'air permet de réduire les composants du moteur et d'améliorer sa fiabilité.
PCT/CN2008/000653 2007-06-29 2008-04-01 Corps d'un moteur diesel à refroidissement par circulation d'air WO2009003349A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100247786A CN101082310A (zh) 2007-06-29 2007-06-29 一种风冷柴油机的机体
CN200710024778.6 2007-06-29

Publications (1)

Publication Number Publication Date
WO2009003349A1 true WO2009003349A1 (fr) 2009-01-08

Family

ID=38912050

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000653 WO2009003349A1 (fr) 2007-06-29 2008-04-01 Corps d'un moteur diesel à refroidissement par circulation d'air

Country Status (2)

Country Link
CN (1) CN101082310A (fr)
WO (1) WO2009003349A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101082310A (zh) * 2007-06-29 2007-12-05 无锡开普动力有限公司 一种风冷柴油机的机体
CN111075589B (zh) * 2019-12-30 2021-03-30 重庆品恒动力机械有限公司 强制风冷柴油机机体

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669203A (en) * 1968-08-08 1972-06-13 Honda Motor Co Ltd Air-cooling apparatus for automotive engine
US4825816A (en) * 1986-09-03 1989-05-02 Kubota, Ltd. Engine with forced air-cooling
JPH0642347A (ja) * 1992-07-23 1994-02-15 Suzuki Motor Corp エンジンの強制空冷装置
JP2004316628A (ja) * 2003-03-31 2004-11-11 Kubota Corp 傾斜型エンジン
CN101082310A (zh) * 2007-06-29 2007-12-05 无锡开普动力有限公司 一种风冷柴油机的机体
CN101082305A (zh) * 2007-06-29 2007-12-05 无锡开普动力有限公司 一种风冷柴油机
CN201062540Y (zh) * 2007-06-29 2008-05-21 无锡开普动力有限公司 一种风冷柴油机
CN201062546Y (zh) * 2007-06-29 2008-05-21 无锡开普动力有限公司 一种风冷柴油机的机体

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669203A (en) * 1968-08-08 1972-06-13 Honda Motor Co Ltd Air-cooling apparatus for automotive engine
US4825816A (en) * 1986-09-03 1989-05-02 Kubota, Ltd. Engine with forced air-cooling
JPH0642347A (ja) * 1992-07-23 1994-02-15 Suzuki Motor Corp エンジンの強制空冷装置
JP2004316628A (ja) * 2003-03-31 2004-11-11 Kubota Corp 傾斜型エンジン
CN101082310A (zh) * 2007-06-29 2007-12-05 无锡开普动力有限公司 一种风冷柴油机的机体
CN101082305A (zh) * 2007-06-29 2007-12-05 无锡开普动力有限公司 一种风冷柴油机
CN201062540Y (zh) * 2007-06-29 2008-05-21 无锡开普动力有限公司 一种风冷柴油机
CN201062546Y (zh) * 2007-06-29 2008-05-21 无锡开普动力有限公司 一种风冷柴油机的机体

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