EP3008318A1 - Coulisseau pour piston dans des moteurs a combustion interne - Google Patents

Coulisseau pour piston dans des moteurs a combustion interne

Info

Publication number
EP3008318A1
EP3008318A1 EP14731587.3A EP14731587A EP3008318A1 EP 3008318 A1 EP3008318 A1 EP 3008318A1 EP 14731587 A EP14731587 A EP 14731587A EP 3008318 A1 EP3008318 A1 EP 3008318A1
Authority
EP
European Patent Office
Prior art keywords
piston
channel
shoe
internal combustion
sliding shoe
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
EP14731587.3A
Other languages
German (de)
English (en)
Other versions
EP3008318B1 (fr
Inventor
Matthias Laqua
Markus PINZ
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.)
KS Kolbenschmidt GmbH
Original Assignee
KS Kolbenschmidt GmbH
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 KS Kolbenschmidt GmbH filed Critical KS Kolbenschmidt GmbH
Publication of EP3008318A1 publication Critical patent/EP3008318A1/fr
Application granted granted Critical
Publication of EP3008318B1 publication Critical patent/EP3008318B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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 
    • F02F3/0015—Multi-part pistons
    • 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 
    • F02F3/28—Other pistons with specially-shaped head
    • 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 
    • F02F3/28—Other pistons with specially-shaped head
    • F02F3/285—Other pistons with specially-shaped head the head being provided with an insert located in or on the combustion-gas-swept surface

Definitions

  • the invention relates to a piston of an internal combustion engine, wherein the piston has a bearing in a force storage shoe and wherein the shoe has a channel for the acquisition of cooling oil in a cavity, according to the features of the preamble of claim 1.
  • DE 100 22 035 A1 discloses an internal combustion engine with a built-in piston, consisting of a piston crown made of steel and a piston lower part, which are connected to each other via a single, arranged in the central axis or near the central axis of the piston screw, and with a central cooling space between Koibenboden and piston lower part, as well as with an oil-carrying connecting rod, which is connected by a piston pin with the Kolbenunterteii.
  • the object of the invention is to achieve a reduction in space between the connecting rod and piston. This object is achieved by a piston having the features of independent claim 1.
  • the energy accumulator is arranged in a channel formed by the piston and the casting shoe is partially guided inside the energy accumulator.
  • the channel is formed circumferentially around the shoe.
  • the channel next to the energy storage also receives a guide element.
  • the foundedsseiement serves as a point of attack for the energy storage and stabilizes the shoe in the channel.
  • a sleeve limits the path of the shoe. By limited over the sleeve path of the shoe receives a defined end stop.
  • a retaining ring prevents the loss of the shoe with a separation of the piston and connecting rod.
  • the circlip not only prevents the loss of the shoe, but forms in advantageously as an alternative or in addition to the security function another stop in the travel of the shoe.
  • the invention provides that the piston with a shoe for use in internal combustion engine, comprising a piston lower part and a piston upper part, wherein the shoe has a channel for the acquisition of cooling oil from a connecting rod in a cavity, wherein a force accumulator is guided in a channel.
  • FIG. 1 shows a piston according to the invention
  • Figure 2 shows as detail II of Figure 1 the area of the shoe
  • FIG. 3 shows, as detail III from FIG. 2, the guide of the sliding shoe.
  • top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the device and other elements selected in the figures. These terms are not intended to be limiting, that is to say that different positions and / or mirror-symmetrical design or the like may change these references.
  • FIG. 1 shows a piston 1, which is made up of a piston lower part 2 and a piston upper part 3.
  • the piston 1 has a sliding shoe 4.
  • a disc 6 is arranged, which transfers the forces from the energy storage device 5 on the shoe 4.
  • a locking ring 7 is provided on a connecting rod 8 of the shoe 4 is with sliding elements 9 on the outer circumference.
  • the sliding shoe 4 has a central channel 10 for the passage of a medium, for example cooling oil, into a cavity 11 of the piston 1. Downwards (looking at the figures) towards, in the direction of the connecting rod 8, the channel 10 widens in a funnel shape. Due to the funnel-shaped structure, the medium from the piezo head 8 can more easily enter the channel 10.
  • the connecting rod 8 is fed by an inlet in the connecting rod with the medium.
  • the cavity 10 is preferably located below the combustion chamber of the piston 1.
  • FIG. 2 shows in detail the region of the sliding shoe 4.
  • the guide of the shoe takes place in a radially encircling channel 12.
  • a radially encircling guide member 13 of the shoe 4 is slidably mounted.
  • the channel 12 receives the energy storage 5 and the disc 6.
  • the disc 6 is supported on the guide member 13 and is acted upon by the force accumulator 5 with a force in the direction of the connecting rod 8.
  • the energy accumulator 5 is supported at its opposite end on the closed end portion 14 of the channel 12.
  • the sliding shoe 4 can be guided in a central sleeve 15.
  • This sleeve 15 is formed integrally with the piston lower part 2.
  • the wall 16 of the sleeve 15 at the same time forms the boundary for the channel 12. Due to the parallel guidance of the shoe 4 in the channel 12 and the sleeve 15 is a stable, secure storage of the shoe 4 in the piston.

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

Piston (1) de moteur à combustion interne, comportant un coulisseau (4) logé dans un accumulateur de force (5), le coulisseau (4) comportant un conduit (10) pour recevoir de l'huile de refroidissement dans une cavité (11), caractérisé en ce que l'accumulateur de force (5) est disposé dans un canal (12) formé notamment par le piston (1) et le coulisseau (4) est guidé en partie à l'intérieur de l'accumulateur de force (5).
EP14731587.3A 2013-06-14 2014-06-13 Coulisseau pour piston dans des moteurs a combustion interne Active EP3008318B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013211215 2013-06-14
PCT/EP2014/062370 WO2014198891A1 (fr) 2013-06-14 2014-06-13 Coulisseau pour piston dans des moteurs a combustion interne

Publications (2)

Publication Number Publication Date
EP3008318A1 true EP3008318A1 (fr) 2016-04-20
EP3008318B1 EP3008318B1 (fr) 2022-11-02

Family

ID=50979743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14731587.3A Active EP3008318B1 (fr) 2013-06-14 2014-06-13 Coulisseau pour piston dans des moteurs a combustion interne

Country Status (5)

Country Link
US (1) US10047694B2 (fr)
EP (1) EP3008318B1 (fr)
CN (1) CN105283656B (fr)
DE (1) DE102014211357A1 (fr)
WO (1) WO2014198891A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016202643A1 (de) * 2016-02-22 2017-08-24 Mahle International Gmbh Kolben einer Brennkraftmaschine
SK288973B6 (sk) * 2020-08-13 2022-06-30 Up-Steel, S.R.O. Radiálny piestový rotačný stroj

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369906A (en) * 1941-12-29 1945-02-20 Aluminum Co Of America Engine cooled piston
US2442408A (en) * 1944-09-15 1948-06-01 Specialloid Ltd Piston cooling construction
FR2371581A1 (fr) * 1976-11-18 1978-06-16 Nat Res Dev Ensemble d'un piston et d'un cylindre a systeme de refroidissement limite pour moteurs a combustion interne
GB2033525A (en) * 1978-10-09 1980-05-21 Ford Motor Co Hydraulic tappet
DE4018252A1 (de) * 1990-06-07 1991-12-12 Man B & W Diesel Ag Oelgekuehlter kolben

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10022035A1 (de) 2000-05-05 2001-11-08 Mahle Gmbh Verbrennungsmotor mit einem gebauten Kolben
CN202970935U (zh) * 2012-10-31 2013-06-05 重庆普什机械有限责任公司 发动机活塞

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369906A (en) * 1941-12-29 1945-02-20 Aluminum Co Of America Engine cooled piston
US2442408A (en) * 1944-09-15 1948-06-01 Specialloid Ltd Piston cooling construction
FR2371581A1 (fr) * 1976-11-18 1978-06-16 Nat Res Dev Ensemble d'un piston et d'un cylindre a systeme de refroidissement limite pour moteurs a combustion interne
GB2033525A (en) * 1978-10-09 1980-05-21 Ford Motor Co Hydraulic tappet
DE4018252A1 (de) * 1990-06-07 1991-12-12 Man B & W Diesel Ag Oelgekuehlter kolben

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014198891A1 *

Also Published As

Publication number Publication date
DE102014211357A1 (de) 2014-12-18
WO2014198891A1 (fr) 2014-12-18
CN105283656B (zh) 2019-01-15
CN105283656A (zh) 2016-01-27
US10047694B2 (en) 2018-08-14
EP3008318B1 (fr) 2022-11-02
US20160146151A1 (en) 2016-05-26

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