ZA202108372B - Transverse plunger-type variable-height valve bridge assembly - Google Patents

Transverse plunger-type variable-height valve bridge assembly

Info

Publication number
ZA202108372B
ZA202108372B ZA2021/08372A ZA202108372A ZA202108372B ZA 202108372 B ZA202108372 B ZA 202108372B ZA 2021/08372 A ZA2021/08372 A ZA 2021/08372A ZA 202108372 A ZA202108372 A ZA 202108372A ZA 202108372 B ZA202108372 B ZA 202108372B
Authority
ZA
South Africa
Prior art keywords
type variable
valve bridge
bridge assembly
height valve
transverse plunger
Prior art date
Application number
ZA2021/08372A
Inventor
Youlin Wu
Fang Zhang
Hu Wan
Yu Fan
Qinghua Li
Original Assignee
Dongfeng Commercial Vehicle Company Ltd
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 Dongfeng Commercial Vehicle Company Ltd filed Critical Dongfeng Commercial Vehicle Company Ltd
Publication of ZA202108372B publication Critical patent/ZA202108372B/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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2422—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means or a hydraulic adjusting device located between the push rod and rocker arm
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/105—Hydraulic motors
    • 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
    • F01L2820/02—Formulas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
ZA2021/08372A 2020-04-24 2021-10-28 Transverse plunger-type variable-height valve bridge assembly ZA202108372B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010334819.7A CN111502791A (en) 2020-04-24 2020-04-24 Horizontal plunger type variable-height valve bridge assembly
PCT/CN2020/099813 WO2021212663A1 (en) 2020-04-24 2020-07-02 Transverse plunger-type variable-height valve bridge assembly

Publications (1)

Publication Number Publication Date
ZA202108372B true ZA202108372B (en) 2022-09-28

Family

ID=71871333

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2021/08372A ZA202108372B (en) 2020-04-24 2021-10-28 Transverse plunger-type variable-height valve bridge assembly

Country Status (5)

Country Link
CN (1) CN111502791A (en)
DE (1) DE112020001855T5 (en)
PL (1) PL242174B1 (en)
WO (1) WO2021212663A1 (en)
ZA (1) ZA202108372B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177703B (en) * 2020-12-02 2021-02-12 江苏卓联精密机械有限公司 Self-resetting single-valve main and auxiliary piston hydraulic driving device and method for push rod engine
CN113898439A (en) * 2021-08-30 2022-01-07 东风商用车有限公司 Valve bridge capable of changing valve motion
CN113931712B (en) * 2021-09-30 2023-06-02 东风商用车有限公司 Rocker arm assembly with variable valve lift
CN115949483B (en) * 2023-03-10 2023-06-13 龙口中宇热管理系统科技有限公司 In-cylinder braking mechanism of engine and working method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691674B2 (en) * 2001-06-13 2004-02-17 Diesel Engine Retarders, Inc. Latched reset mechanism for engine brake
CN102003240B (en) * 2009-08-31 2013-01-16 上海尤顺汽车部件有限公司 Improved structure of engine brake device
WO2013014490A1 (en) * 2011-07-22 2013-01-31 Renault Trucks Valve actuation mechanism and automotive vehicle comprising such a valve actuation mechanism
CN110486114B (en) * 2019-08-26 2020-10-02 东风商用车有限公司 Integrated engine brake execution piston
CN212318107U (en) * 2020-04-24 2021-01-08 东风商用车有限公司 Horizontal plunger type variable-height valve bridge assembly

Also Published As

Publication number Publication date
PL439699A1 (en) 2022-06-06
DE112020001855T5 (en) 2022-01-13
CN111502791A (en) 2020-08-07
PL242174B1 (en) 2023-01-23
WO2021212663A1 (en) 2021-10-28

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