WO2022224233A3 - Control of valves with locking system in internal combustion engines - Google Patents

Control of valves with locking system in internal combustion engines Download PDF

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Publication number
WO2022224233A3
WO2022224233A3 PCT/IB2022/057116 IB2022057116W WO2022224233A3 WO 2022224233 A3 WO2022224233 A3 WO 2022224233A3 IB 2022057116 W IB2022057116 W IB 2022057116W WO 2022224233 A3 WO2022224233 A3 WO 2022224233A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve
projection
axial direction
locking
along
Prior art date
Application number
PCT/IB2022/057116
Other languages
French (fr)
Other versions
WO2022224233A4 (en
WO2022224233A2 (en
Inventor
Nefton PALI
Original Assignee
Shala S.R.L.S.
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 Shala S.R.L.S. filed Critical Shala S.R.L.S.
Publication of WO2022224233A2 publication Critical patent/WO2022224233A2/en
Publication of WO2022224233A3 publication Critical patent/WO2022224233A3/en
Publication of WO2022224233A4 publication Critical patent/WO2022224233A4/en

Links

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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
    • 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
    • F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
    • 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
    • F01L1/32—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for rotating lift valves, e.g. to diminish wear
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L2003/25—Valve configurations in relation to engine
    • F01L2003/258—Valve configurations in relation to engine opening away from cylinder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

The present invention relates to a maneuver apparatus (1) for intake and exhaust valves wherein the maneuvering means are adapted to move the valve (11) along the axial direction of the symmetry axis (A) of the stem (200 ) between a first working position, in which the valve (11) is arranged at the related valve seat (50), and a second working position, in which the valve (11) is spaced apart from the valve seat (50), and vice versa, wherein the valve (11) is arranged outside of the cylinder head and comprises at least a projection (311, 411, 511) protruding from the stem (200) and substantially perpendicular to the symmetry axis (A), wherein a locking device (100) provided with at least a locking element (114, 115, 116) is adapted to be operatively coupled with the projection (311, 411, 511), and wherein the maneuvering means are operatively coupled to the locking device (100) and are adapted to move the locking device (100) from a locking position, in which the locking element (114, 115, 116) is at least partially coupled to the projection (311, 411, 511) to prevent movement of the valve (11) along the axial direction, to an unlocking position, in which the locking element (114, 115, 116) is disengaged from the projection (311, 411, 511) to allow movement of the valve (11) along the axial direction, and vice versa.
PCT/IB2022/057116 2021-09-01 2022-08-01 Control of valves with locking system in internal combustion engines WO2022224233A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102021000022667A IT202100022667A1 (en) 2021-09-01 2021-09-01 CONTROL OF VALVES WITH BLOCK SYSTEM IN INTERNAL COMBUSTION ENGINES
IT102021000022667 2021-09-01

Publications (3)

Publication Number Publication Date
WO2022224233A2 WO2022224233A2 (en) 2022-10-27
WO2022224233A3 true WO2022224233A3 (en) 2022-12-22
WO2022224233A4 WO2022224233A4 (en) 2023-03-02

Family

ID=78770905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2022/057116 WO2022224233A2 (en) 2021-09-01 2022-08-01 Control of valves with locking system in internal combustion engines

Country Status (2)

Country Link
IT (1) IT202100022667A1 (en)
WO (1) WO2022224233A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926809A1 (en) * 1989-08-14 1991-02-21 Kriegler Franz Damping arrangement for valves in IC engine - makes use of conical bodies to avoid need for anti-knock agents
DE3926804A1 (en) * 1989-08-14 1991-02-21 Kriegler Franz Valve drive for IC engine - makes use of spring-loaded buffer and positive connection drive
CN101680312B (en) * 2007-08-07 2012-06-06 史古德利集团有限责任公司 Hydro-mechanical valve actuation system for split-cycle engine
US10293912B2 (en) * 2013-10-17 2019-05-21 E.P. Barrus Limited Marine propulsion unit and a valve for a marine propulsion unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926809A1 (en) * 1989-08-14 1991-02-21 Kriegler Franz Damping arrangement for valves in IC engine - makes use of conical bodies to avoid need for anti-knock agents
DE3926804A1 (en) * 1989-08-14 1991-02-21 Kriegler Franz Valve drive for IC engine - makes use of spring-loaded buffer and positive connection drive
CN101680312B (en) * 2007-08-07 2012-06-06 史古德利集团有限责任公司 Hydro-mechanical valve actuation system for split-cycle engine
US10293912B2 (en) * 2013-10-17 2019-05-21 E.P. Barrus Limited Marine propulsion unit and a valve for a marine propulsion unit

Also Published As

Publication number Publication date
IT202100022667A1 (en) 2023-03-01
WO2022224233A4 (en) 2023-03-02
WO2022224233A2 (en) 2022-10-27

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