WO2012161944A3 - Axial seal on rotor face for cam phaser - Google Patents

Axial seal on rotor face for cam phaser Download PDF

Info

Publication number
WO2012161944A3
WO2012161944A3 PCT/US2012/036496 US2012036496W WO2012161944A3 WO 2012161944 A3 WO2012161944 A3 WO 2012161944A3 US 2012036496 W US2012036496 W US 2012036496W WO 2012161944 A3 WO2012161944 A3 WO 2012161944A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
seal
seals
face
camshaft
Prior art date
Application number
PCT/US2012/036496
Other languages
French (fr)
Other versions
WO2012161944A2 (en
Inventor
Christopher J. Pluta
Original Assignee
Borgwarner Inc.
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 Borgwarner Inc. filed Critical Borgwarner Inc.
Publication of WO2012161944A2 publication Critical patent/WO2012161944A2/en
Publication of WO2012161944A3 publication Critical patent/WO2012161944A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/54—Other sealings for rotating shafts
    • F16J15/545—Other sealings for rotating shafts submitted to unbalanced pressure in circumference; seals for oscillating actuator
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34469—Lock movement parallel to camshaft axis
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34479—Sealing of phaser devices
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs
    • 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
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/02—Camshaft drives characterised by their transmission means the camshaft being driven by chains
    • 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
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/04—Camshaft drives characterised by their transmission means the camshaft being driven by belts
    • 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
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/06—Camshaft drives characterised by their transmission means the camshaft being driven by gear wheels
    • 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
    • F01L2301/00—Using particular materials

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A variable cam timing assembly (10) and method for an internal combustion engine of a motor vehicle includes a cam phaser (22) connected between an inner camshaft (12a) and an outer camshaft (12b) of a concentric camshaft (12). An axial face rotor seal (14) permits adjustment for perpendicularity and axial misalignment of the inner and outer camshafts (12a, 12b), while permitting a torsionally stiff coupling to be used between the cam phaser (22) and the inner and outer camshafts (12a, 12b) of the concentric camshaft (12). The axial face rotor seal (14) can be formed as separate rotor face seals (14a, 14b), vane tip seals (40), and partition member seals (44), and/or can be formed as a combination with abutting end (18a, 18b) of rotor face seals (14a, 14b) and/or overlapping ends (18e, 18f) of rotor face seal (14a, 14b) defining integral vane tip seal portions (40a, 40b) and/or integral partition member seal portions (44a, 44b).
PCT/US2012/036496 2011-05-20 2012-05-04 Axial seal on rotor face for cam phaser WO2012161944A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161488312P 2011-05-20 2011-05-20
US61/488,312 2011-05-20

Publications (2)

Publication Number Publication Date
WO2012161944A2 WO2012161944A2 (en) 2012-11-29
WO2012161944A3 true WO2012161944A3 (en) 2013-02-07

Family

ID=47217958

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/036496 WO2012161944A2 (en) 2011-05-20 2012-05-04 Axial seal on rotor face for cam phaser

Country Status (1)

Country Link
WO (1) WO2012161944A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014012496A1 (en) 2014-08-27 2016-03-03 Thyssenkrupp Presta Teccenter Ag Cam adjustment device for adjusting a position of at least one cam segment
DE102015110679B4 (en) * 2015-07-02 2021-04-01 Thyssenkrupp Ag Method for compensating tolerances between a stator and a rotor of a phase adjuster for an adjustable camshaft

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6186103B1 (en) * 1998-07-06 2001-02-13 Ina Walzlager Schaeffler Ohg Device for varying timing of gas exchange valves of internal combustion engines, particularly a vane-type camshaft adjusting device
US20080264367A1 (en) * 2004-08-31 2008-10-30 Hitachi, Ltd. Variable valve timing control apparatus of internal combustion engine
US20080289596A1 (en) * 2006-12-13 2008-11-27 Dominic Borraccia Apparatus for preventing leakage across rotor vanes in a vane-type camshaft phaser
US7640902B2 (en) * 2005-06-08 2010-01-05 Hydraulik-Ring Gmbh Rotor for vane-type motor with reduced leakage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6186103B1 (en) * 1998-07-06 2001-02-13 Ina Walzlager Schaeffler Ohg Device for varying timing of gas exchange valves of internal combustion engines, particularly a vane-type camshaft adjusting device
US20080264367A1 (en) * 2004-08-31 2008-10-30 Hitachi, Ltd. Variable valve timing control apparatus of internal combustion engine
US7640902B2 (en) * 2005-06-08 2010-01-05 Hydraulik-Ring Gmbh Rotor for vane-type motor with reduced leakage
US20080289596A1 (en) * 2006-12-13 2008-11-27 Dominic Borraccia Apparatus for preventing leakage across rotor vanes in a vane-type camshaft phaser

Also Published As

Publication number Publication date
WO2012161944A2 (en) 2012-11-29

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