FR2429328A1 - PISTON OF INTERNAL COMBUSTION ENGINE IN SPHEROLITHIC CAST IRON ALLOY - Google Patents

PISTON OF INTERNAL COMBUSTION ENGINE IN SPHEROLITHIC CAST IRON ALLOY

Info

Publication number
FR2429328A1
FR2429328A1 FR7911149A FR7911149A FR2429328A1 FR 2429328 A1 FR2429328 A1 FR 2429328A1 FR 7911149 A FR7911149 A FR 7911149A FR 7911149 A FR7911149 A FR 7911149A FR 2429328 A1 FR2429328 A1 FR 2429328A1
Authority
FR
France
Prior art keywords
piston
spherolithic
combustion engine
internal combustion
cast iron
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.)
Granted
Application number
FR7911149A
Other languages
French (fr)
Other versions
FR2429328B1 (en
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.)
CKD Praha DIZ AS
CKD Praha Oborovy Podnik
Original Assignee
CKD Praha DIZ AS
CKD Praha Oborovy Podnik
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 CKD Praha DIZ AS, CKD Praha Oborovy Podnik filed Critical CKD Praha DIZ AS
Publication of FR2429328A1 publication Critical patent/FR2429328A1/en
Application granted granted Critical
Publication of FR2429328B1 publication Critical patent/FR2429328B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

a. L'invention concerne un piston de moteur à combustion interne en alliage de fonte perlitique sphérolithique. b. Piston caractérisé en ce que la nervure circulaire concentrique 2 est fixée sur une paroi transversale 3, perpendiculaire à l'axe du piston, qui forme, avec cette nervure, une chambre de refroidissement au-dessous de la partie centrale du fond de piston 1, et qui se raccorde à l'enveloppe de piston 4, dans la zone des gorges à bague de piston, cette paroi transversale 3 étant reliée au moyen de nervures plus basses, rigides 5 aux oeilletons du corps de piston 6, la nervure circulaire concentrique 2 étant pourvue d'au moins deux perçages 7 de communication entre la chambre de refroidissement 8 et la chambre annulaire de refroidissement 9. c. L'invention trouve son application principale dans le domaine de l'industrie automobile.at. The invention relates to an internal combustion engine piston made of a spherolithic pearlitic cast iron alloy. b. Piston characterized in that the concentric circular rib 2 is fixed to a transverse wall 3, perpendicular to the axis of the piston, which forms, with this rib, a cooling chamber below the central part of the piston base 1, and which connects to the piston casing 4, in the region of the piston ring grooves, this transverse wall 3 being connected by means of lower, rigid ribs 5 to the eyelets of the piston body 6, the concentric circular rib 2 being provided with at least two bores 7 for communication between the cooling chamber 8 and the annular cooling chamber 9. c. The invention finds its main application in the field of the automotive industry.

FR7911149A 1978-06-22 1979-05-03 PISTON OF INTERNAL COMBUSTION ENGINE IN SPHEROLITHIC CAST IRON ALLOY Granted FR2429328A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS412278A CS201273B1 (en) 1978-06-22 1978-06-22 Piston from the alloyed perlitic plastic cast iron for the ignition engines

Publications (2)

Publication Number Publication Date
FR2429328A1 true FR2429328A1 (en) 1980-01-18
FR2429328B1 FR2429328B1 (en) 1984-12-21

Family

ID=5383269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911149A Granted FR2429328A1 (en) 1978-06-22 1979-05-03 PISTON OF INTERNAL COMBUSTION ENGINE IN SPHEROLITHIC CAST IRON ALLOY

Country Status (5)

Country Link
CS (1) CS201273B1 (en)
DE (1) DE2923330C2 (en)
FR (1) FR2429328A1 (en)
GB (1) GB2023764A (en)
SU (1) SU949215A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643079A (en) * 1985-03-28 1987-02-17 General Motors Corporation Iron piston having selectively hardened ring groove
DE3511852C1 (en) * 1985-03-30 1987-01-02 Man B & W Diesel Gmbh Oil-cooled monoblock trunk piston for internal combustion engines
GB9909033D0 (en) * 1999-04-19 1999-06-16 Seneca Tech Ltd Piston coolant path
DE10325917A1 (en) 2003-06-07 2005-03-31 Mahle Gmbh Piston for an internal combustion engine and casting process for its production
CN113431698B (en) * 2020-03-23 2023-04-11 强莉莉 Split combined type heat insulation piston

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601295A1 (en) * 1976-01-15 1977-07-21 Kleinwaechter Hans Solar energy collector assembly - has plastics collector sleeve between multilayer upper plate and heat insulating bottom plate with adjustable plate spacing
US4076025A (en) * 1976-11-22 1978-02-28 Parker Louis W Solar steam boiler
US4126270A (en) * 1976-01-23 1978-11-21 Hummel Richard L Solar energy collection system
FR2395468A1 (en) * 1977-06-23 1979-01-19 Parica Solar radiation energy collector - uses air as heat transfer medium drawn through panels by common fan and passed to point of use by duct

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE499189C (en) * 1927-04-21 1930-06-05 Gen Electric Co Ltd Pistons for internal combustion engines
US1856107A (en) * 1928-04-10 1932-05-03 Gen Electric Co Ltd Piston for internal combustion engines
DE1055879B (en) * 1955-03-23 1959-04-23 Schmidt Gmbh Karl Oil-cooled pistons for diesel engines in vehicles
DE1002172B (en) * 1955-12-20 1957-02-07 Maschf Augsburg Nuernberg Ag Cooled light alloy piston
DE1526598A1 (en) * 1966-10-07 1970-02-12 Maschf Augsburg Nuernberg Ag Device for reducing cylinder liner wear in plunger engines, especially for heavy duty operation
US3613521A (en) * 1968-11-07 1971-10-19 Komatsu Mfg Co Ltd Piston for internal combustion engine
FR2079873A5 (en) * 1970-02-16 1971-11-12 Semt
FR2127040A5 (en) * 1971-01-19 1972-10-13 Semt
FR2125687A5 (en) * 1971-02-16 1972-09-29 Semt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601295A1 (en) * 1976-01-15 1977-07-21 Kleinwaechter Hans Solar energy collector assembly - has plastics collector sleeve between multilayer upper plate and heat insulating bottom plate with adjustable plate spacing
US4126270A (en) * 1976-01-23 1978-11-21 Hummel Richard L Solar energy collection system
US4076025A (en) * 1976-11-22 1978-02-28 Parker Louis W Solar steam boiler
FR2395468A1 (en) * 1977-06-23 1979-01-19 Parica Solar radiation energy collector - uses air as heat transfer medium drawn through panels by common fan and passed to point of use by duct

Also Published As

Publication number Publication date
SU949215A1 (en) 1982-08-07
CS201273B1 (en) 1980-10-31
FR2429328B1 (en) 1984-12-21
DE2923330A1 (en) 1980-01-10
GB2023764A (en) 1980-01-03
DE2923330C2 (en) 1986-06-12

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Legal Events

Date Code Title Description
ST Notification of lapse