EP0704604A2 - Arbre à cames - Google Patents

Arbre à cames Download PDF

Info

Publication number
EP0704604A2
EP0704604A2 EP95112586A EP95112586A EP0704604A2 EP 0704604 A2 EP0704604 A2 EP 0704604A2 EP 95112586 A EP95112586 A EP 95112586A EP 95112586 A EP95112586 A EP 95112586A EP 0704604 A2 EP0704604 A2 EP 0704604A2
Authority
EP
European Patent Office
Prior art keywords
camshaft
bearing
section
flange
connecting flange
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.)
Withdrawn
Application number
EP95112586A
Other languages
German (de)
English (en)
Other versions
EP0704604A3 (fr
Inventor
Rüdiger Hass
Holger Karst
Rudolf Kischnik
Hans-Jürgen Schacht
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.)
Caterpillar Motoren GmbH and Co KG
Original Assignee
Krupp Mak Maschinenbau 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 Krupp Mak Maschinenbau GmbH filed Critical Krupp Mak Maschinenbau GmbH
Publication of EP0704604A2 publication Critical patent/EP0704604A2/fr
Publication of EP0704604A3 publication Critical patent/EP0704604A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0476—Camshaft bearings

Definitions

  • the invention relates to a camshaft for an engine consisting of several sections, which is mounted several times in a crankcase in the bearing shells of a bearing bracket.
  • the object of the invention is to improve an embodiment of a composite camshaft for an engine, which can be easily installed or removed.
  • each camshaft section comprises a connecting flange at one end and a bearing journal at the opposite other end, and in the operating state the connecting flange of the section is releasably connected to a bearing journal of the subsequent section via flange screws and the section is and dismantled condition between the other sections around the bearing pin with its flange-side end is arranged tiltable.
  • the camshaft sections in can be replaced or exchanged in a simple manner.
  • the sections each have a connecting flange at the end and a bearing journal, so that the camshaft as a whole is formed by a mutual screw connection between the connecting flange and the bearing journal of the sections.
  • the floating bearing bush receiving the journal is axially displaced. This is made possible by loosening a screw-in bolt that holds the bearing bush axially and against rotating.
  • the connecting flanges have a diameter that exceeds the enveloping circles of all cams.
  • a camshaft 1 for an engine comprises a plurality of camshaft sections 2, 3 and 4, further possible sections not being shown.
  • Each section has a connecting flange 6 at one end 5 and a bearing journal 8 at the other end 7, which is held in a so-called wobble bearing arrangement consisting of a bearing shell 9 in a bearing bracket 10.
  • the sections 2, 3 and 4 are screwed together using flange screws 12 which connect the connecting flange 6 of one section to the bearing journal 8 of the subsequent section.
  • the camshaft sections 2, 3 and 4 are designed as one-piece forged components with the connecting flange 6 and the bearing pin 8.
  • the bearing pin 8 is mounted in the bearing shell 9 of the bearing bracket 10 of the crankcase, which is axially fixed via at least one screw-in bolt 11 and secured against rotation.
  • the bearing bridge has a cast recess 14 which forms a free space for the connecting flange 6 during installation and removal.
  • the bearing pins 8 of the sections 2, 3 and 4 preferably have a diameter which is larger than the enveloping circles of all the cams 14. This enables a problem-free installation and removal of a completely assembled camshaft 1 axially in the engine.
  • a camshaft for the engine which consists of several assembled sections.
  • each section has a connecting flange and a bearing journal.
  • the intermediate camshaft section is removed by tilting this section out between the two subsequent further sections, with a tilting movement around the bearing journal in the bearing shell and the flange-side end of the section being pivoted out first on one side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP95112586A 1994-09-30 1995-08-10 Arbre à cames Withdrawn EP0704604A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19944434982 DE4434982A1 (de) 1994-09-30 1994-09-30 Nockenwelle
DE4434982 1994-09-30

Publications (2)

Publication Number Publication Date
EP0704604A2 true EP0704604A2 (fr) 1996-04-03
EP0704604A3 EP0704604A3 (fr) 1996-12-11

Family

ID=6529617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112586A Withdrawn EP0704604A3 (fr) 1994-09-30 1995-08-10 Arbre à cames

Country Status (2)

Country Link
EP (1) EP0704604A3 (fr)
DE (1) DE4434982A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057979A3 (fr) * 1999-06-04 2002-11-27 Caterpillar Inc. Arbre à cames assemblé pour moteur à combustion interne

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141492B (de) * 1960-06-23 1962-12-20 Motoren Werke Mannheim Ag Steuerwellenlagerung fuer Verbrennungskraftmaschinen
FI62711C (fi) * 1976-02-18 1983-02-10 Waertsilae Oy Ab Nockaxel och foerfarande foer dess montering
CH612727A5 (fr) * 1976-12-10 1979-08-15 Sulzer Ag
DE3923250A1 (de) * 1989-07-14 1991-01-24 Mak Maschinenbau Krupp Steuerwelle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1057979A3 (fr) * 1999-06-04 2002-11-27 Caterpillar Inc. Arbre à cames assemblé pour moteur à combustion interne

Also Published As

Publication number Publication date
EP0704604A3 (fr) 1996-12-11
DE4434982A1 (de) 1996-04-04

Similar Documents

Publication Publication Date Title
DE69727144T2 (de) Montage vorrichtung
DE4001379C2 (de) Pumpenlaufrad
DE69902944T2 (de) Befestigungsvorrichtung zum schnellen an- bzw. abkoppeln eines bauteils an eine bzw. von einer auflagefläche
DE29522251U1 (de) Einrichtung zum Klemmen einer Lageranordnung an eine verlängerte Welle
DE2424262A1 (de) Gewindelose spannvorrichtung
DE2011777C3 (fr)
DE2648144C2 (de) Mittenfreie Wälzlager-Drehverbindung
DE1293549B (de) Stimmvorrichtung fuer Gitarren
DE19528434B4 (de) Bremsscheibe
EP0058781A1 (fr) Cylindre extracteur pour des balles de matières fibreuses
DE2412606A1 (de) Kugelspindel
DE1284732B (de) Bremsscheibe fuer Scheibenbremsen, insbesondere von Schienenfahrzeugen
DE3224762C2 (fr)
DE3427259C2 (de) Rolltor - Antrieb
DE10238415B4 (de) Gleitlager für eine Welle eines Abgasturboladers
EP0704604A2 (fr) Arbre à cames
DE2936068C2 (fr)
EP0243577A2 (fr) Vilebrequin en matière ferreuse pour machines à piston
DE20208133U1 (de) Gleitlager zur axialen und radialen Lagerung
DE3639168A1 (de) Hubschrauber-hauptrotor
DE69502511T2 (de) Zusammenbau einer Kipphebelwelle in einem Zylinderkopf einer Brennkraftmaschine
DE69008383T2 (de) Verfahren und Vorrichtung zur spielfreien Montage eines sich drehenden Teiles zwischen zwei Lagern.
DE4339978A1 (de) Welle-/Nabe-Verbindung
DE10296634T5 (de) Entrindungswellenanordnung für einen Entrindungsmechanismus
DE3931737A1 (de) Eigenantriebsspindel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: F01L 1/047

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR LI NL

17P Request for examination filed

Effective date: 19961210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MAK MOTOREN GMBH

17Q First examination report despatched

Effective date: 19970602

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19971111