FR2270775A1 - Silencer for lawnmower I.C. engine - has annular filter divided by radial partitions into chambers connected by pipes - Google Patents

Silencer for lawnmower I.C. engine - has annular filter divided by radial partitions into chambers connected by pipes

Info

Publication number
FR2270775A1
FR2270775A1 FR7514809A FR7514809A FR2270775A1 FR 2270775 A1 FR2270775 A1 FR 2270775A1 FR 7514809 A FR7514809 A FR 7514809A FR 7514809 A FR7514809 A FR 7514809A FR 2270775 A1 FR2270775 A1 FR 2270775A1
Authority
FR
France
Prior art keywords
silencer
pipes
shaft
annular filter
radial partitions
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.)
Withdrawn
Application number
FR7514809A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolf Geraete GmbH
Original Assignee
Wolf Geraete GmbH
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 Wolf Geraete GmbH filed Critical Wolf Geraete GmbH
Publication of FR2270775A1 publication Critical patent/FR2270775A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/826—Noise reduction means
    • 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
    • F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/06—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hand-held tools or portables devices
FR7514809A 1974-05-13 1975-05-13 Silencer for lawnmower I.C. engine - has annular filter divided by radial partitions into chambers connected by pipes Withdrawn FR2270775A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7416608 1974-05-13

Publications (1)

Publication Number Publication Date
FR2270775A1 true FR2270775A1 (en) 1975-12-12

Family

ID=6644991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514809A Withdrawn FR2270775A1 (en) 1974-05-13 1975-05-13 Silencer for lawnmower I.C. engine - has annular filter divided by radial partitions into chambers connected by pipes

Country Status (9)

Country Link
AT (1) AT350313B (fr)
BE (1) BE828726A (fr)
CH (1) CH592808A5 (fr)
DK (1) DK137283C (fr)
FR (1) FR2270775A1 (fr)
NL (1) NL7505556A (fr)
NO (1) NO751653L (fr)
SE (1) SE7505470L (fr)
ZA (1) ZA752556B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474810A1 (fr) * 1980-01-31 1981-08-07 Bernard Moteurs Tondeuse a gazon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474810A1 (fr) * 1980-01-31 1981-08-07 Bernard Moteurs Tondeuse a gazon

Also Published As

Publication number Publication date
CH592808A5 (fr) 1977-11-15
ZA752556B (en) 1976-03-31
SE7505470L (sv) 1975-11-17
ATA326175A (de) 1978-10-15
DK195775A (da) 1975-11-14
NO751653L (fr) 1975-11-14
DK137283B (da) 1978-02-13
NL7505556A (nl) 1975-11-17
AT350313B (de) 1979-05-25
BE828726A (fr) 1975-09-01
DK137283C (da) 1978-07-17

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Legal Events

Date Code Title Description
ST Notification of lapse