SE8205612D0 - PNEUMATIC CRAFT MACHINE - Google Patents

PNEUMATIC CRAFT MACHINE

Info

Publication number
SE8205612D0
SE8205612D0 SE8205612A SE8205612A SE8205612D0 SE 8205612 D0 SE8205612 D0 SE 8205612D0 SE 8205612 A SE8205612 A SE 8205612A SE 8205612 A SE8205612 A SE 8205612A SE 8205612 D0 SE8205612 D0 SE 8205612D0
Authority
SE
Sweden
Prior art keywords
sleeve
wall
length
air outlet
outlet channel
Prior art date
Application number
SE8205612A
Other languages
Swedish (sv)
Other versions
SE8205612L (en
SE429674B (en
Inventor
A Hettich
K Roll
R Stroezel
G Lorenz
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of SE8205612L publication Critical patent/SE8205612L/en
Publication of SE8205612D0 publication Critical patent/SE8205612D0/en
Publication of SE429674B publication Critical patent/SE429674B/en

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

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).
SE8205612A 1981-03-25 1982-10-01 Muffler for a compressed air powered hand tool machine SE429674B (en)

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
SE8205612L SE8205612L (en) 1982-10-01
SE8205612D0 true SE8205612D0 (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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO1982003423A1 (en) 1982-10-14
SE8205612L (en) 1982-10-01
SE429674B (en) 1983-09-19
JPS58500416A (en) 1983-03-17
DE3111688A1 (en) 1982-10-07

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