SE8205612L - PNEUMATIC CRAFT MACHINE - Google Patents
PNEUMATIC CRAFT MACHINEInfo
- Publication number
- SE8205612L SE8205612L SE8205612A SE8205612A SE8205612L SE 8205612 L SE8205612 L SE 8205612L SE 8205612 A SE8205612 A SE 8205612A SE 8205612 A SE8205612 A SE 8205612A SE 8205612 L SE8205612 L SE 8205612L
- Authority
- SE
- Sweden
- Prior art keywords
- sleeve
- wall
- length
- air outlet
- outlet channel
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- 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
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/001—Gas flow channels or gas chambers being at least partly formed in the structural parts of the engine or machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Sawing (AREA)
- Compressor (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Exhaust Silencers (AREA)
Abstract
There is proposed a compressed air-operated hand tool wherein an improved sound damping is achieved without increasing the overall size which would be prejudicial to the handling ability. Inside the casing of the tool there is provided an air outlet channel (18) wherein a sleeve (19) having a cross-section area smaller than that of the channel (18) protrudes. Upstream of the sleeve (19) there is arranged a wall (20) wherein marginal holes (21) have been drilled. The passages (D1 and D2) for the air flow and the distances L1, L2, L3 - length of the sleeve, distance between the latter and the wall, length of the air outlet channel - are determined empirically to allow for an optimum dampening of the noise, particularly owing to the sheathes (22, 23) maintaining the wall (20).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813111688 DE3111688A1 (en) | 1981-03-25 | 1981-03-25 | AIR TOOLING MACHINE |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8205612D0 SE8205612D0 (en) | 1982-10-01 |
SE8205612L true SE8205612L (en) | 1982-10-01 |
SE429674B SE429674B (en) | 1983-09-19 |
Family
ID=6128219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8205612A SE429674B (en) | 1981-03-25 | 1982-10-01 | Muffler for a compressed air powered hand tool machine |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS58500416A (en) |
DE (1) | DE3111688A1 (en) |
SE (1) | SE429674B (en) |
WO (1) | WO1982003423A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2923936B2 (en) * | 1994-11-07 | 1999-07-26 | マックス株式会社 | Sound reduction device for pneumatic driven nailing machine |
JP6382143B2 (en) * | 2015-03-31 | 2018-08-29 | 日東工器株式会社 | Pneumatic tool with Helmholtz silencer |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2950775A (en) * | 1958-01-13 | 1960-08-30 | Aro Equipment Corp | Exhaust noise reducing and air diffusing means for pneumatic motors |
US2966138A (en) * | 1958-05-12 | 1960-12-27 | Robert C Quackenbush | Muffler construction for portable pneumatic tool |
DE1189478B (en) * | 1958-12-30 | 1965-03-18 | Linde Eismasch Ag | Soundproofing body arranged in the air outlet connection of a hand tool operated by compressed air |
US3384200A (en) * | 1967-03-16 | 1968-05-21 | Gardner Denver Co | Exhaust muffler for pneumatic tool |
CH545912A (en) * | 1970-12-14 | 1974-02-15 | ||
DE2539884C2 (en) * | 1975-09-08 | 1985-07-04 | Hilti Ag, Schaan | Powder-powered fastening tool with driving piston |
DE2752261A1 (en) * | 1977-11-23 | 1979-06-07 | Bosch Gmbh Robert | SILENCER FOR GAS-SHAPED OPERATING EQUIPMENT ESCAPED |
-
1981
- 1981-03-25 DE DE19813111688 patent/DE3111688A1/en not_active Withdrawn
-
1982
- 1982-03-18 JP JP50112882A patent/JPS58500416A/en active Pending
- 1982-03-18 WO PCT/DE1982/000063 patent/WO1982003423A1/en unknown
- 1982-10-01 SE SE8205612A patent/SE429674B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8205612D0 (en) | 1982-10-01 |
DE3111688A1 (en) | 1982-10-07 |
JPS58500416A (en) | 1983-03-17 |
WO1982003423A1 (en) | 1982-10-14 |
SE429674B (en) | 1983-09-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8205612-8 Effective date: 19880126 Format of ref document f/p: F |