JPS57183540A - Piston of internal combustion engine - Google Patents

Piston of internal combustion engine

Info

Publication number
JPS57183540A
JPS57183540A JP6888281A JP6888281A JPS57183540A JP S57183540 A JPS57183540 A JP S57183540A JP 6888281 A JP6888281 A JP 6888281A JP 6888281 A JP6888281 A JP 6888281A JP S57183540 A JPS57183540 A JP S57183540A
Authority
JP
Japan
Prior art keywords
cooling fluid
piston
passage
cooling
inlet hole
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
Application number
JP6888281A
Other languages
Japanese (ja)
Inventor
Shunichi Mori
Fumito Sato
Takeo Takaishi
Tsuneo Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP6888281A priority Critical patent/JPS57183540A/en
Publication of JPS57183540A publication Critical patent/JPS57183540A/en
Pending legal-status Critical Current

Links

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

Abstract

PURPOSE:To increase the cooling effect of a piston, by spreading an opening end, forming a cooling fluid inlet passage to conical shape, simultaneously continuing the passage smoothly from the axial direction of the piston toward a circumferential piston cooling fluid passage and forming the passage to curved shape. CONSTITUTION:A cooling fluid jetting nozzle 10 is fixedly mounted to an engine crank chamber, and cooling fluid is continuously jetted toward a cooling fluid inlet hole 6, passing through a piston cooling fluid passage 7 and cooling a piston, and released from a cooling fluid outlet hole 8 into an engine. Since the cooling fluid inlet hole 6 is spread with its inlet to horn shape, most of cooling fluid jetted from the cooling fluid jetting nozzle 10 enters the inlet hole 6 to increase charging efficiency. Further a connection part of the piston cooling fluid passage 7 is smoothly formed from the piston axial direction to the circumferential direction, then the cooling fluid smoothly flows at increased speed, thus a cooling effect of the piston can be improved.
JP6888281A 1981-05-09 1981-05-09 Piston of internal combustion engine Pending JPS57183540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6888281A JPS57183540A (en) 1981-05-09 1981-05-09 Piston of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6888281A JPS57183540A (en) 1981-05-09 1981-05-09 Piston of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57183540A true JPS57183540A (en) 1982-11-11

Family

ID=13386465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6888281A Pending JPS57183540A (en) 1981-05-09 1981-05-09 Piston of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57183540A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748524A1 (en) * 1996-05-09 1997-11-14 Daimler Benz Ag LIQUID-COOLED PISTON FOR INTERNAL COMBUSTION ENGINES
JP2010525221A (en) * 2007-04-27 2010-07-22 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング Core for forming cooling passages in pistons manufactured by casting technology
US20130312695A1 (en) * 2010-12-18 2013-11-28 Mahle International Gmbh Piston for an internal combustion engine and method for the production thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2748524A1 (en) * 1996-05-09 1997-11-14 Daimler Benz Ag LIQUID-COOLED PISTON FOR INTERNAL COMBUSTION ENGINES
JP2010525221A (en) * 2007-04-27 2010-07-22 マーレ インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング Core for forming cooling passages in pistons manufactured by casting technology
US20130312695A1 (en) * 2010-12-18 2013-11-28 Mahle International Gmbh Piston for an internal combustion engine and method for the production thereof
US8899208B2 (en) * 2010-12-18 2014-12-02 Mahle International Gmbh Internal combustion engine piston having axially extending cooling bores

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