scholarly journals Innovative Multifunctional Unit for Alternative Tillage

2021 ◽  
pp. 11-15
Author(s):  
Ya.P. Lobachevsky ◽  
◽  
B.Kh. Akhalaia ◽  
Yu.Kh. Shogenov ◽  
S.I. Starovoitov ◽  
...  
Keyword(s):  
Compressed Air ◽  
Working Process ◽  
Destructive Effect ◽  
Milling Cutter ◽  
Main System

An alternative project of a tillage device is presented, the main working process of which is implemented through a destructive effect on the soil by directed impulse shocks of compressed air. It is shown that the main cultivation of the soil occurs by means of the main working body consisting of the spokes of the hubs and tips connected with a source of compressed air via a central main system. It is noted that behind the main working body there are auxiliary elements of the milling cutter and rollers using which the finishing of the soil takes place.

Non-Dimensional Modeling and Simulation Analysis of Air Powered Engine

2013 ◽  
Vol 278-280 ◽  
pp. 307-314 ◽  
Author(s):  
Rong Zhi Song ◽  
Xiang Heng Fu ◽  
Mao Lin Cai
Keyword(s):  
Fossil Fuels ◽  
Simulation Analysis ◽  
Mathematic Model ◽  
Power Source ◽  
Compressed Air ◽  
Pollutant Emission ◽  
Energy Crisis ◽  
Power Devices ◽  
Working Process ◽  
Dimensional Modeling

Environmental pollution and energy crisis urge people to explore new power devices without burning fossil fuels and pollutant emission. Air powered engine (APE) is among these power devices. The medium and power source of APE is compressed air whose expansion makes it possible for APE to output work. Based on the principal and working process of APE, the mathematic model is established and afterwards made dimensionless. On the basis of the simulation of the non-dimensional mathematic model, the influences of the non-dimensional cylinder stroke and Kagawa coefficient on APE’s performances are analyzed

Dimensionless Study on Efficiency and Speed Characteristics of a Compressed Air Engine

2015 ◽  
Vol 137 (4) ◽  
Author(s):  
Qihui Yu ◽  
Maolin Cai ◽  
Yan Shi ◽  
Chi Yuan
Keyword(s):  
Mathematical Model ◽  
Reference Values ◽  
Engine Performance ◽  
Power Source ◽  
Compressed Air ◽  
Working Process ◽  
Ic Engine ◽  
Rotating Speed ◽  
Inertia Parameter ◽  
The Mathematical Model

To eliminate the pollutants exhausting, this paper presents an idea of using compressed air as the power source for engines. Instead of an internal combustion (IC) engine, this automobile is equipped with a compressed air engines (CAEs), which transforms the energy of the compressed air into mechanical kinematic energy. Through analysis of the working process of a CAE, the mathematical model is setup. Experiments are carried out to verify the engine performance and the basic model’s validity. By selecting the appropriate reference values, the mathematical model is transformed to a dimensionless expression. The dimensionless speed and efficiency characteristics of the CAE are obtained. Through analysis, it can be obtained that the dimensionless average rotating speed is mainly determined by the intake duration angle, the dimensionless inertia parameter, the dimensionless exhaust pressure, and the scale factor of exhaust valve. Moreover, the efficiency of the CAE is mainly determined by the dimensionless exhaust pressure, the intake duration angle and the dimensionless cylinder clearance. This research can be referred to in the design of CAE and the study on optimization of the CAE.

scholarly journals Design of a Roller Bearing Grease Removal Device

2019 ◽  
Vol 8 (10) ◽  
pp. 2431-2434
Keyword(s):  
High Velocity ◽  
Roller Bearing ◽  
Compressed Air ◽  
Working Process ◽  
Manual Method ◽  
Increase Efficiency

In the present Scenario, The manual method for Removing grease from the Roller Bearing used in the railway department became a major problem. Chemicals will effect humans while cleaning the railway bearings in manual method. In order to reduce human effect and increase efficiency in cleaning, we are aimed to design a machine which will automatically clean the bearings and will decrease the time of cleaning. In the overhauling process, which will be done manually will be directly apply the kerosene and the compressed air. This suggested machine will clean the bearing automatically by providing kerosene and compressed air with high velocity. The compressed air with high velocity will be provided to rotate the bearing continuously and kerosene will be applied simultaneously, Thus the cleaning of the bearing. Will be done automatically. It works on principle that kerosene air mixture will reduce the density and remove the grease from the bearing completely and it is collected in a drain. After the overhauling process, the parts will be assembled in the railway coaches. So this machine can reduce the time in the working process and avoids the human problems in manual method.

Compressed Air for City and Suburban Traction

1897 ◽  
Vol 43 (1101supp) ◽  
pp. 17592-17593
Author(s):  
Herman Haupt
Keyword(s):  
Compressed Air

Use of Compressed Air Motors for Street Cars

1879 ◽  
Vol 7 (182supp) ◽  
pp. 2891-2892
Author(s):  
H. Haupt
Keyword(s):  
Compressed Air
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