MY141810A - Decompression device of 4 stroke cycle internal combustion engine - Google Patents
Decompression device of 4 stroke cycle internal combustion engineInfo
- Publication number
- MY141810A MY141810A MYPI20021133A MYPI20021133A MY141810A MY 141810 A MY141810 A MY 141810A MY PI20021133 A MYPI20021133 A MY PI20021133A MY PI20021133 A MYPI20021133 A MY PI20021133A MY 141810 A MY141810 A MY 141810A
- Authority
- MY
- Malaysia
- Prior art keywords
- cam
- exhaust
- decompression
- valve
- intake
- Prior art date
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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- 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
- F01L1/053—Camshafts overhead 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/08—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
- F01L2305/02—Mounting of rollers
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)
Abstract
IN A 4 STROKE CYCLE INTERNAL COMBUSTION ENGINE HAVING AN INTAKE VALVE (13) AND AN EXHAUST. VALVE (14) OPENED AND CLOSED BY AN INTAKE CAM (17) AND AN EXHAUST CAM (18) MADE INTEGRAL WITH A CAMSHAFT (19)/ A DECOMPRESSION CAM (35) IS FITTED ON THE CAMSHAFT (19) NEIGHBORING AT LEAST ONE OF THE INTAKE CAM (17) AND THE EXHAUST CAM (18) THROUGH A ONE-WAY CLUTCH (34) CAPABLE OF TRANSMITTING TORQUE ONLY WHEN THE CAMSHAFT (19) ROTATES IN REVERSE. A CAM ROLLER (32) ROLLING IN CONTACT WITH THE INTAKE CAM (17) OR THE EXHAUST CAM (18) IS PIVOTALLY SUPPORTED ON AN END OF A ROCKER ARM (26/ 27) FOR OPENING THE INTAKE VALVE (13) OR THE EXHAUST VALVE (14), A DECOMPRESSION CAM CONTACT SECTION (33) OF THE ROCKER ARM (26/ 27) TOUCHING THE DECOMPRESSION CAM (35) IS FORMED ON AN END OF THE ROCKER ARM (26/ 27) SUPPORTING THE CAM ROLLER (32). AXIAL LENGTH OF THE CAM ROLLER (32) AND WIDTH OF THE ROCKER ARM (26/ 27) CAN BE MADE SMALL, POWER FOR DRIVING A VALVE MOVING APPARATUS CAN BE REDUCED AND THE DECOMPRESSION DEVICE CAN BE MINIATURIZED. A STOPPER PIECE (41) PENETRATES SO AS TO SLIDE A THROUGH HOLE (40A) OF A STOPPER PIECE SUPPORT SECTION (40) PROVIDED IN A CYLINDER HEAD. AN ENGAGING PROJECTION (39A) FORMED ON A PERIPHERY OF THE DECOMPRESSION CAM (35) IS RETAINED BY THE STOPPER PIECE (41).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001101426A JP4023585B2 (en) | 2001-03-30 | 2001-03-30 | Decompression device for 4-stroke cycle internal combustion engine |
JP2001101427A JP3963658B2 (en) | 2001-03-30 | 2001-03-30 | Decompression device for 4-stroke cycle internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
MY141810A true MY141810A (en) | 2010-06-30 |
Family
ID=26612850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI20021133A MY141810A (en) | 2001-03-30 | 2002-03-28 | Decompression device of 4 stroke cycle internal combustion engine |
Country Status (6)
Country | Link |
---|---|
CN (1) | CN1267624C (en) |
AR (1) | AR033078A1 (en) |
BR (1) | BR0204748B1 (en) |
MY (1) | MY141810A (en) |
TR (1) | TR200202591T1 (en) |
WO (1) | WO2002081877A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2890350Y (en) * | 2006-02-22 | 2007-04-18 | 广州市番禺华南摩托企业集团有限公司 | Starting pressure-release and reversal pressure-release device |
CN101131111B (en) * | 2007-09-21 | 2010-06-02 | 隆鑫工业有限公司 | Pressure reducing device of water-cooled engine |
JP4777955B2 (en) * | 2007-10-03 | 2011-09-21 | 本田技研工業株式会社 | Engine decompression device |
CN102606254B (en) * | 2012-04-05 | 2014-07-30 | 重庆路沃发动机有限公司 | Decompressor for engine |
CN103912329B (en) * | 2013-01-05 | 2017-10-10 | 光阳工业股份有限公司 | It is easy to substitute the internal combustion engine of rocker arm shaft |
CN105673215B (en) * | 2016-03-02 | 2018-04-06 | 重庆亘富软件开发有限公司 | The closing method of decompression is reverse-located for engine |
CN110500157A (en) * | 2019-09-12 | 2019-11-26 | 江门市大长江集团有限公司 | Position limiting structure and engine cylinder head decompressor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60201069A (en) * | 1984-03-26 | 1985-10-11 | Honda Motor Co Ltd | Decompression device for internal-combustion engine |
JPH0670366B2 (en) * | 1986-12-25 | 1994-09-07 | 本田技研工業株式会社 | Engine auto decompression device |
JP4145447B2 (en) * | 1999-11-18 | 2008-09-03 | 本田技研工業株式会社 | 4-cycle engine decompression system |
-
2002
- 2002-02-22 CN CNB028009673A patent/CN1267624C/en not_active Expired - Fee Related
- 2002-02-22 TR TR2002/02591T patent/TR200202591T1/en unknown
- 2002-02-22 WO PCT/JP2002/001617 patent/WO2002081877A1/en active IP Right Grant
- 2002-02-22 BR BRPI0204748-9A patent/BR0204748B1/en not_active IP Right Cessation
- 2002-03-27 AR ARP020101166A patent/AR033078A1/en active IP Right Grant
- 2002-03-28 MY MYPI20021133A patent/MY141810A/en unknown
Also Published As
Publication number | Publication date |
---|---|
TR200202591T1 (en) | 2003-12-22 |
WO2002081877A1 (en) | 2002-10-17 |
BR0204748A (en) | 2003-06-10 |
CN1267624C (en) | 2006-08-02 |
BR0204748B1 (en) | 2010-06-29 |
AR033078A1 (en) | 2003-12-03 |
CN1460147A (en) | 2003-12-03 |
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