IT201700066013A1 - Motore a combustione interna con un sistema di attuazione valvole - Google Patents

Motore a combustione interna con un sistema di attuazione valvole

Info

Publication number
IT201700066013A1
IT201700066013A1 IT102017000066013A IT201700066013A IT201700066013A1 IT 201700066013 A1 IT201700066013 A1 IT 201700066013A1 IT 102017000066013 A IT102017000066013 A IT 102017000066013A IT 201700066013 A IT201700066013 A IT 201700066013A IT 201700066013 A1 IT201700066013 A1 IT 201700066013A1
Authority
IT
Italy
Prior art keywords
combustion engine
internal combustion
actuation system
valve actuation
valve
Prior art date
Application number
IT102017000066013A
Other languages
English (en)
Inventor
Wolfgang Gstrein
Original Assignee
Fpt Motorenforschung Ag
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 Fpt Motorenforschung Ag filed Critical Fpt Motorenforschung Ag
Priority to IT102017000066013A priority Critical patent/IT201700066013A1/it
Publication of IT201700066013A1 publication Critical patent/IT201700066013A1/it

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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • F01L1/06—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like the cams, or the like, rotating at a higher speed than that corresponding to the valve cycle, e.g. operating fourstroke engine valves directly from crankshaft
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/146—Push-rods
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0031—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of tappet or pushrod length
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • F01L1/38—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for engines with other than four-stroke cycle, e.g. with two-stroke cycle
    • 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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
IT102017000066013A 2017-06-14 2017-06-14 Motore a combustione interna con un sistema di attuazione valvole IT201700066013A1 (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT102017000066013A IT201700066013A1 (it) 2017-06-14 2017-06-14 Motore a combustione interna con un sistema di attuazione valvole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000066013A IT201700066013A1 (it) 2017-06-14 2017-06-14 Motore a combustione interna con un sistema di attuazione valvole

Publications (1)

Publication Number Publication Date
IT201700066013A1 true IT201700066013A1 (it) 2018-12-14

Family

ID=60020537

Family Applications (1)

Application Number Title Priority Date Filing Date
IT102017000066013A IT201700066013A1 (it) 2017-06-14 2017-06-14 Motore a combustione interna con un sistema di attuazione valvole

Country Status (1)

Country Link
IT (1) IT201700066013A1 (it)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191112138A (en) * 1911-05-19 1912-06-19 James Dennis Roots New or Improved Valve Gear for Four Stroke Cycle Internal Combustion Engines.
JPS60169609A (ja) * 1984-02-14 1985-09-03 Usui Internatl Ind Co Ltd 内燃機関動弁用プツシユ・ロツド装置
US4602597A (en) * 1984-03-05 1986-07-29 Rhoads Gary E Variable push rod
US20020121255A1 (en) * 2001-03-01 2002-09-05 Walter Speil Valve train of an internal combustion engine
US20150184563A1 (en) * 2013-12-27 2015-07-02 Honda Motor Co., Ltd. Cylinder lubrication system for two-stroke engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191112138A (en) * 1911-05-19 1912-06-19 James Dennis Roots New or Improved Valve Gear for Four Stroke Cycle Internal Combustion Engines.
JPS60169609A (ja) * 1984-02-14 1985-09-03 Usui Internatl Ind Co Ltd 内燃機関動弁用プツシユ・ロツド装置
US4602597A (en) * 1984-03-05 1986-07-29 Rhoads Gary E Variable push rod
US20020121255A1 (en) * 2001-03-01 2002-09-05 Walter Speil Valve train of an internal combustion engine
US20150184563A1 (en) * 2013-12-27 2015-07-02 Honda Motor Co., Ltd. Cylinder lubrication system for two-stroke engine

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