WO2010050701A3 - Damping apparatus for exhaust valve for preventing cavitation in hydraulic exhaust valve-driving apparatus of large diesel engine - Google Patents
Damping apparatus for exhaust valve for preventing cavitation in hydraulic exhaust valve-driving apparatus of large diesel engine Download PDFInfo
- Publication number
- WO2010050701A3 WO2010050701A3 PCT/KR2009/006140 KR2009006140W WO2010050701A3 WO 2010050701 A3 WO2010050701 A3 WO 2010050701A3 KR 2009006140 W KR2009006140 W KR 2009006140W WO 2010050701 A3 WO2010050701 A3 WO 2010050701A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exhaust valve
- damper
- flow channel
- preventing cavitation
- damping apparatus
- 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
- 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
-
- 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
- F01L1/08—Shape of cams
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/03—Reducing vibration
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/04—Reducing noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The present invention relates to a damping apparatus for an exhaust valve for preventing cavitation in a hydraulic exhaust valve-driving apparatus of a large diesel engine. The objective of the present invention is to provide a damping apparatus for an exhaust valve for preventing cavitation in a damper cylinder during the opening of an exhaust valve, and thus preventing noise, vibration, and erosion caused by cavitation, by having a check valve arranged in a damper piston of the large engine to enable hydraulic oil to easily flow into the damper cylinder. The present invention has a technical ideal in that the damping apparatus having the damper piston and the damper cylinder comprises: a horizontal flow channel (1) opened through both sides of the interior of the damper piston to enable the inflow of hydraulic oil; a vertical flow channel (2) penetrating from the horizontal flow channel (1) to the bottom surface of the damper piston; and a check valve (3) mounted on a certain point of the vertical flow channel such that the check valve (3) opens downwardly by a pressure difference, thereby enabling hydraulic oil to flow into the damper cylinder and thus preventing cavitation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080105084A KR20100046307A (en) | 2008-10-27 | 2008-10-27 | Damping apparatus for the exhaust valve to prevent cavitation phenomena at the hydraulic exhaust valve actuating equipment of large diesel engine |
KR10-2008-0105084 | 2008-10-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010050701A2 WO2010050701A2 (en) | 2010-05-06 |
WO2010050701A3 true WO2010050701A3 (en) | 2010-08-05 |
Family
ID=42129428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/006140 WO2010050701A2 (en) | 2008-10-27 | 2009-10-22 | Damping apparatus for exhaust valve for preventing cavitation in hydraulic exhaust valve-driving apparatus of large diesel engine |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR20100046307A (en) |
WO (1) | WO2010050701A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118275293A (en) * | 2024-06-03 | 2024-07-02 | 湖南工商大学 | Multi-working condition simulation loop test device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085208A (en) * | 1983-10-14 | 1985-05-14 | Mitsubishi Heavy Ind Ltd | Hydraulic valve driving device |
JPS63183405U (en) * | 1987-05-19 | 1988-11-25 | ||
KR19980064309U (en) * | 1997-04-28 | 1998-11-25 | 김영귀 | Cracking Pressure Adjustment Nut on Check Valve |
JPH1122432A (en) * | 1997-07-03 | 1999-01-26 | Nippon Soken Inc | Solenoid valve driving device |
-
2008
- 2008-10-27 KR KR1020080105084A patent/KR20100046307A/en active Search and Examination
-
2009
- 2009-10-22 WO PCT/KR2009/006140 patent/WO2010050701A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085208A (en) * | 1983-10-14 | 1985-05-14 | Mitsubishi Heavy Ind Ltd | Hydraulic valve driving device |
JPS63183405U (en) * | 1987-05-19 | 1988-11-25 | ||
KR19980064309U (en) * | 1997-04-28 | 1998-11-25 | 김영귀 | Cracking Pressure Adjustment Nut on Check Valve |
JPH1122432A (en) * | 1997-07-03 | 1999-01-26 | Nippon Soken Inc | Solenoid valve driving device |
Also Published As
Publication number | Publication date |
---|---|
KR20100046307A (en) | 2010-05-07 |
WO2010050701A2 (en) | 2010-05-06 |
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