Two-stroke engine and hand-held work tool

DE102025102477A1Undetermined Publication Date: 2026-07-23ANDREAS STIHL AG & CO KG
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
DE102025102477
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-07-23

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

A two-stroke engine (1) comprises a cylinder (2) with a cylinder bore (25) in which a piston (5) is mounted to reciprocate, the piston (5) defining a combustion chamber (3) formed in the cylinder (2), a crankshaft (7) rotatably mounted in a crankcase (4) about an axis of rotation (8) and driven by the piston (5), and an intake port (12). The intake port (12) is divided over at least a portion of its length into at least one mixture port (14) and at least one air port (13). The mixture port (14) and the air port (13) are curved over at least a portion of their length in a direction parallel to the axis of rotation (8) of the crankshaft (7) downstream of a fuel supply device (15).The mixture channel (14) runs parallel to the axis of rotation (8) of the crankshaft (7) downstream of the fuel supply device (15) up to a distance of 5 mm from the cylinder bore (25), either in a straight line or by a right-hand bend. The air channel (13) runs in the same direction downstream of the fuel supply device (15) up to a distance of 5 mm from the cylinder bore (25), either in a straight line or by a left-hand bend.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Two-stroke engine has air duct which opens out to exhaust on opposite side of cylinder bore and air path is so formed that it evenly leads air to overflow channel

    DE102005002013A1

  • Combustion engine, comprises suction channel for supplying fuel and combustion air, where suction channel is connected by inlet opening with cleaning area of air filter

    DE102006024078A1

  • two-stroke engine

    DE102010045017A1

  • two-stroke engine

    DE102010054840A1

  • Carburetor and two-stroke engine with one carburetor

    DE102020119158A1