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SE2351330A1 - System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system - Google Patents

System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system

Info

Publication number
SE2351330A1
SE2351330A1 SE2351330A SE2351330A SE2351330A1 SE 2351330 A1 SE2351330 A1 SE 2351330A1 SE 2351330 A SE2351330 A SE 2351330A SE 2351330 A SE2351330 A SE 2351330A SE 2351330 A1 SE2351330 A1 SE 2351330A1
Authority
SE
Sweden
Prior art keywords
combustion air
air
hand
centrifugal purification
fan wheel
Prior art date
Application number
SE2351330A
Other versions
SE547367C2 (en
Inventor
Alex Rasooli
Frans Levin
Fredrik Lindström
Ricky Sundkvist
Rikard Andersson
Robert Ek
Original Assignee
Husqvarna Ab
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 Husqvarna Ab filed Critical Husqvarna Ab
Priority to SE2351330A priority Critical patent/SE547367C2/en
Priority to PCT/SE2024/050768 priority patent/WO2025110910A1/en
Publication of SE2351330A1 publication Critical patent/SE2351330A1/en
Publication of SE547367C2 publication Critical patent/SE547367C2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
    • F02M35/06—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices combined or associated with engine's cooling blower or fan, or with flywheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/022—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls
    • F02M35/0223—Air cleaners acting by gravity, by centrifugal, or by other inertial forces, e.g. with moistened walls by centrifugal forces, e.g. cyclones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/1017—Small engines, e.g. for handheld tools, or model engines; Single cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A system (10) for centrifugal purification of combustion air, said system (10) comprising a fan wheel (15) rotatable about a rotation axis (R), a helical fan housing (20) surrounding said fan wheel (15) and an air nozzle (30) disposed within said helical fan housing (20) proximal to said fan wheel (15), said air nozzle (30) forming an air passage (35) for combustion air,wherein the air nozzle (30) comprises:an inlet (31) comprising a leading edge (32) as seen in a direction of flow of combustion air, said leading edge (32) being adapted to conduct air to said inlet (31), the inlet (31) extending at least partially tangentially to a periphery of the fan wheel (15), andan outlet (33) extending at least partially parallel to the rotation axis (RA) and in an inward direction relative to said rotation axis (RA).
SE2351330A 2023-11-21 2023-11-21 System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system SE547367C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2351330A SE547367C2 (en) 2023-11-21 2023-11-21 System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system
PCT/SE2024/050768 WO2025110910A1 (en) 2023-11-21 2024-09-05 System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2351330A SE547367C2 (en) 2023-11-21 2023-11-21 System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system

Publications (2)

Publication Number Publication Date
SE2351330A1 true SE2351330A1 (en) 2025-05-22
SE547367C2 SE547367C2 (en) 2025-07-15

Family

ID=95827404

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2351330A SE547367C2 (en) 2023-11-21 2023-11-21 System for centrifugal purification of combustion air and a hand-held motor-driven tool comprising such a system

Country Status (2)

Country Link
SE (1) SE547367C2 (en)
WO (1) WO2025110910A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720243A (en) * 1996-01-12 1998-02-24 Aktiebolaget Electrolux Device for separation of dust
FR2845122A1 (en) * 2002-09-28 2004-04-02 Stihl Ag & Co Kg Andreas BLOWER DEVICE
US8413616B2 (en) * 2006-11-24 2013-04-09 Husqvarna Ab Arrangement related to a motor-driven tool
US8490585B2 (en) * 2009-10-30 2013-07-23 Andreas Stihl Ag & Co. Kg Work apparatus with a combustion-air flow diverted from the cooling air flow

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720243A (en) * 1996-01-12 1998-02-24 Aktiebolaget Electrolux Device for separation of dust
FR2845122A1 (en) * 2002-09-28 2004-04-02 Stihl Ag & Co Kg Andreas BLOWER DEVICE
US8413616B2 (en) * 2006-11-24 2013-04-09 Husqvarna Ab Arrangement related to a motor-driven tool
US8490585B2 (en) * 2009-10-30 2013-07-23 Andreas Stihl Ag & Co. Kg Work apparatus with a combustion-air flow diverted from the cooling air flow

Also Published As

Publication number Publication date
SE547367C2 (en) 2025-07-15
WO2025110910A1 (en) 2025-05-30

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