On the Effects of Length of an Intake Pipe on the Delivery Ratio in a Small Two-Stroke Cycle Engine

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概要

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• To examine the effects of length of an intake pipe on the delivery ratio (or the breathing capacity) in a small crankcase-scavenged type two-stroke cycle engine, the authors have measured the amount of air flow and analyzed some pressure indicator diagrams for the intake pipe, the crankcase and the cylinder. Some conclusions obtained are summarized as follows : a) The maximum delivery ratio occurs on account of the inertia-effect same as in the case of four-stroke engine and the matching conditions for the inertia-effect are expressed by Z_M=ωL^*/a_s≅θ_s/270. b) In the special cases of a long intake pipe or high speed, the pulsation waves in the intake pipe have an influence on the delivery ratio and such pulsation effect is governed by q=15a_s/(N・L_s). c) Comparing these equations, it may be noted that the inertia-effect differs essentially from the pulsation-effect.

• 一般社団法人日本機械学会の論文

著者

• Sawa Norihiro

  Faculty Of Engineering Gumma University

• Sawa Norihiro

  Faculty Of Engineering Gumma University.

• ASANUMA Tsuyoshi

  Aeronautical Research Institute, University of Tokyo

• Asanuma Tsuyoshi

  Aeronautical Research Institute University Of Tokyo

関連論文

• On the Effects of the Position of a Carburetor on the Combustion in a Small Two-Stroke Cycle Engine
• The Effect of an Intake Pipe System on the Fuel Flow Amount of a Small Type Two-Stroke Cycle Engine
• Studies on the Sealing Action of the Viscous Fluid
• On the Effects of Length of an Intake Pipe on the Delivery Ratio in a Small Two-Stroke Cycle Engine
• Measurement of Transfer Time Constant of Effective Torque in Internal Combustion Engines

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