TED-AJ03-564 An Analysis of the Effect of Scavenging Passage Length on the Combustion State of Small 2-Cycle Engine
スポンサーリンク
概要
- 論文の詳細を見る
This paper presents the results of experiments conducted with a 2-cycle engine that was the world's first such engine to comply with the 2000 California emissions regulations for small off-road engines adopted by the U. S. state of California in 2000. This engine is fitted with a scavenging passage that runs around the crankcase before the scavenging port. The aim of this research was to investigate how changes in the quantity of heat transferred to the fresh air as a result of varying the length of the scavenging passage would affect the state of combustion and exhaust gas composition. The test engine used in this study was a single-cylinder air-cooled 2-cycle gasoline engine displacing 40cc and equipped with a Schnurle scavenging system. The engine was operated at a speed of 5000 rpm in all the experiments, and a mixture of regular gasoline (91 RON) and oil was prepared at a ratio of 40 : 1 for use as the test fuel. The air-fuel ratio was set at stoichiometric proportions. As shown in Fig. A-1,three different scavenging passage lengths were tested, with the longest length denoted as Condition A, one-half of that length denoted as Condition B and the shortest length denoted as Condition C. When not in use, [figure] scavenging passage entrances were blocked to prevent the mixture from entering the passage there. A crystal pressure transducer was integrated with the spark plug to obtain cylinder pressure measurements. As shown in Fig. A-2,an ion probe was fitted to the end zone of the combustion chamber in order to detect the state of combustion. A voltage of 60 V was applied to the ion probe and measurements were made of the voltage drop that occurred due to the presence of high concentrations of ions (H_(3O)^+, C_3H_3^+, CHO^+, etc.) at the flame front. The exhaust gas composition was investigated by using an exhaust gas analyzer to measure the concentrations of HCs, CO, CO_2 and O_2 in the exhaust. The experimental results showed that charging efficiency declined and power output dropped slightly due to higher intake resistance as the length of the scavenging passage was increased from Condition C to Conditions B and A, but emissions of unburned hydrocarbons (HCs) and carbon monoxide (CO) per unit of power output (g/kWh) tended to decrease. The measured data also indicated that the state of combustion was improved with a longer scavenging passage.[figure]
- 一般社団法人日本機械学会の論文
著者
-
YOSHIDA Koji
Department of Mechanical Engineering, College of Science and Technology, Nihon University
-
Shoji Hideo
Department Of Mechanical Engineering College Of Science And Technology Nihon University
-
Yamazaki Akinori
Department Of Anesthesia Japan Red Cross Society Wakayama Medical Center
-
Yamazaki Akinori
Department Of Mechanical Engineering College Of Science And Technology Nihon University
-
MORINAGA Takuto
Department of Mechanical Engineering, College of Science and Technology, Nihon University
-
ISHIDA Shigetoshi
Tanaka Kogyo Co., Ltd.
-
KATOH Kinichi
Tanaka Kogyo Co., Ltd.
-
Katoh Kinichi
Tanaka Kogyo Co. Ltd.
-
Morinaga Takuto
Department Of Mechanical Engineering College Of Science And Technology Nihon University
-
Ishida Shigetoshi
Tanaka Kogyo Co. Ltd.
-
Yoshida Koji
Department Of Biochemistry Kinki University School Of Medicine
関連論文
- TED-AJ03-565 Two-position Measurement of Preflame Reactions at Autoignition Under Knocking Operation
- SIMPLE IMAGING SYSYTEM FOR THE FRAGMENTATION OF MOLECULAR IONS
- Two-Dimensional Fermi Liquid Behavior of the Superconductor Sr_2RuO_4
- Anisotropic Flux Pinning in a Layered Superconductor Sr_2RuO_4
- Role of the Heme Regulatory Motif in the Heme-Mediated Inhibition of Mitochondrial Import of 5-Aminolevulinate Synthase
- Amyloid Formation and Cytotoxicity of a De Novo Designed Protein, Amyloidgenesin, and Its Analogs
- Pseudomyxoma Peritonei Concomitant with Early Gastric Cancer : Report of a Case
- Successful One-Stage Operation for Completely Obstructive Colorectal Carcinoma
- Jejunal Lipomatosis with Diverticulosis : Report of a Case
- Acoustic Phonon Dynamics in Liquid CCl_4(Condensed Matter : Structure, Mechanical and Thermal Properties)
- Study of Active Jet Control by Acoustically Driven Secondary Film Flow Influence of Velocity Ratio and Acoustic Strouhal Number(Jets, Wakes and Separated Flows)
- Study of Active Jet Control by Acoustically driven Secondary Film Flow : Influence of Velocity Ratio and Acoustic Strouhal Number(Flow Control 2)
- Multiple Magnetic Transitions in RuSr_2R_Ce_Cu_2O_(R = Gd, Eu) from Magnetization and ESR Spectroscopy(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Multiple Magnetic Transitions in RuSr_2R_Ce_Cu_2O_ (R = Gd, Eu) from Magnetization and ESR Spectroscopy
- Transforming Growth Factor-β Upregulates the Expression of Integrin and Related Proteins in MRC-5 Human Myofibroblasts
- Feedback Control for Electromagnetic Vibration Feeder : Applications of Two-Degrees-of-Freedom Proportional plus Integral plus Derivative Controller with Nonlinear Element
- Connective Tissue Growth Factor Cooperates with Fibronectin in Enhancing Attachment and Migration of Corneal Epithelial Cells
- Arsenic Deposition in the Statolith of Post-Spawning Japanese Common Squid, So-Called "Kawa-ika"
- A De Novo Designed α-to-β Transition Protein with an Amyloid Fibril Formation
- E304 ANALYSIS OF OH, ECHO, AND HCO EMISSION INTENSITY IN A PROGRESSION FROM NORMAL COMBUSTION TO KNOCKING OPERATION IN A SPARK IGNITION ENGINE(SI engine performance)
- Focal Nodular Hyperplasia-Like Nodule with Reduced Expression of Organic Anion Transporter 1B3 in Alcoholic Liver Cirrhosis
- Small-Angle Neutron Scattering Study on Aggregation in Acetonitrile-D_2O and Acetonitrile-D_2O-NaCl Mixtures
- A CASE REPORT OF THE TRACTION OF AN IMPACTED TOOTH CAUSED BY ODONTOMA
- Severe methemoglobinemia after dental anesthesia : a warning about propitocaine-induced methemoglobinemia in neonates
- Suitability of Tartrate-Resistant Acid Phosphatase Type 5b as a Screening Marker for Bone Mineral Density in Community-Dwelling Elderly Individuals
- The cellular mechanisms underlying the inhibitory effects of isoflurane and sevoflurane on arginine vasopressin-induced vasoconstriction
- TED-AJ03-564 An Analysis of the Effect of Scavenging Passage Length on the Combustion State of Small 2-Cycle Engine
- Hemicellulose of the pollen tube wall of Camellia japonica
- Amplification of Transverse Acoustic Surface Waves under Transverse Magnetic Field
- Sequencing of cDNA Encoding Serum Albumin and Its Extrahepatic Synthesis in the Mongolian Gerbil, Meriones unguiculatus
- Base parameters for manipulators with a planar parallelogram link mechanism
- Molecular Cloning and Sequencing of cDNA Encoding Plasma Countertrypin, a Member of Mammalian Fetuin Family, from the Mongolian Gerbil, Meriones unguiculatus^1
- Molecular Cloning and Sequencing of cDNA Encoding Plasma Countertrypin, a Member of Mammalian Fetuin Family, from the Mongolian Gerbil, Meriones unguiculatus
- Analysis of OH Radical Emission Intensity During Autoignition in a 2-Stroke SI Engine
- Interaction between Surface Elastic Waves and Drifting Carriers in Layered System
- A New Type of Surface Acoustic Waveguide
- Improvement and Impairment in Cognitive Function After Carotid Endarterectomy : Comparison of Objective and Subjective Assessments
- HC2-3: A Study of Autoignition in an HCCI Engine by using Light Absorption and Emission Spectroscopy(HC: HCCI Combustion,General Session Papers)
- Pore Size Dependent Behavior of Hydrated Ag^+ Ions Confined in Mesoporous MCM-41 Materials under Synchrotron X-ray Irradiation
- Trans-thoracic microwave coagulo-necrotic therapy for hepatic tumors without chest tube insertion
- Good Stress Management Capability Is Associated with Lower Body Mass Index and Restful Sleep in the Elderly
- Thermal Behavior and Structure of Low-temperature Water Confined in Sephadex G15 Gel by Differential Scanning Calorimetry and X-ray Diffraction Method