GB1367718A - Exhaust silencing apparatus - Google Patents
Exhaust silencing apparatusInfo
- Publication number
- GB1367718A GB1367718A GB1418472A GB1418472A GB1367718A GB 1367718 A GB1367718 A GB 1367718A GB 1418472 A GB1418472 A GB 1418472A GB 1418472 A GB1418472 A GB 1418472A GB 1367718 A GB1367718 A GB 1367718A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- valve
- tube
- silencer
- casing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B31/00—Component parts, details, or accessories not provided for in, or of interest apart from, other groups
- F01B31/005—Silencing equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/11—Arrangements of noise-damping means
- B25D17/12—Arrangements of noise-damping means of exhaust silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/165—Silencing apparatus characterised by method of silencing by using movable parts for adjusting flow area
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
- Details Of Valves (AREA)
Abstract
1367718 Exhaust gas silencers GRASSOS KONINKLIJKE MACHINE FABRIEKEN NV 27 March 1972 [31 March 1971] 14184/72 Heading F1B An exhaust silencing apparatus for pressurized gas includes a silencer having a casing, a gas inlet and gas outlet formed in the casing, valve means housed within the casing between the inlet and the outlet and serving to prevent gas from flowing through the silencer until the pressure of the gas at the inlet side of the silencer reaches a predetermined level. The apparatus comprises an outer tube 1 and a concentric inner tube 3, having perforations 4 in its wall and positioned by discs 5 and 6. The disc 5 has gas inlet holes 7 and the disc 6 has gas outlet holes 8. A cap 9 fits on the end of the tube 1 and a mounting belt 11 carries a fixed washer 12 which forms an abutment for one end of a spring 13 which presses a rubber-faced valve 14 against the outlet side of disc 6. The valve 14 remains closed until the pressure in the tubes 1 and 3 has built up sufficiently to provide for a smooth gas flow past the valve and out through the apertures 10 in the cap 9. In a modification, Fig. 2 (not shown) a perforated tube 17 extends into a bore 16 which receives the exhaust gas from an air-operated tool. The end 19 of the tube is closed by the conical end 22 of a valve 20, having a cylindrical body containing perforations 21. As the gas-pressure in the tube 17 reaches a predetermined value, the valve 20 opens against a spring and gas passes through perforations 21 and then out through a passage 25.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7104328A NL7104328A (en) | 1971-03-31 | 1971-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1367718A true GB1367718A (en) | 1974-09-18 |
Family
ID=19812822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1418472A Expired GB1367718A (en) | 1971-03-31 | 1972-03-27 | Exhaust silencing apparatus |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2214087A1 (en) |
FR (1) | FR2131455A5 (en) |
GB (1) | GB1367718A (en) |
NL (1) | NL7104328A (en) |
SE (1) | SE385230B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006107255A1 (en) * | 2005-04-05 | 2006-10-12 | Atlas Copco Tools Ab | Pneumatic power tool with exhaust silencer |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2337222C2 (en) * | 1973-07-21 | 1983-01-27 | Robert Bosch Gmbh, 7000 Stuttgart | Protective device for the external air connection of a valve used in a compressed air brake system in motor vehicles |
SE409223C (en) * | 1977-01-21 | 1980-10-13 | Atlas Copco Ab | VALVE DEVICE FOR DUMPING THE WASTE SOIL FROM A PRESSURE-DRIVE ENGINE |
IT8104805V0 (en) * | 1981-03-31 | 1981-03-31 | Panda Srl | EXHAUST SILENCER, IN PARTICULAR FOR PISTOLS AND PNEUMATIC EQUIPMENT |
DE3130292C2 (en) * | 1981-07-31 | 1984-02-09 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Silencers for use on equipment operated by compressed air |
-
1971
- 1971-03-31 NL NL7104328A patent/NL7104328A/xx not_active Application Discontinuation
-
1972
- 1972-03-17 FR FR7209481A patent/FR2131455A5/fr not_active Expired
- 1972-03-23 DE DE19722214087 patent/DE2214087A1/en active Pending
- 1972-03-27 GB GB1418472A patent/GB1367718A/en not_active Expired
- 1972-03-29 SE SE405972A patent/SE385230B/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006107255A1 (en) * | 2005-04-05 | 2006-10-12 | Atlas Copco Tools Ab | Pneumatic power tool with exhaust silencer |
US8528659B2 (en) | 2005-04-05 | 2013-09-10 | Atlas Copco Industrial Technique Aktiebolag | Pneumatic power tool with exhaust silencer |
Also Published As
Publication number | Publication date |
---|---|
NL7104328A (en) | 1972-10-03 |
SE385230B (en) | 1976-06-14 |
FR2131455A5 (en) | 1972-11-10 |
DE2214087A1 (en) | 1972-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |