scholarly journals INDICATING THE HIGH-SPEED MULTI-CYLINDER INTERNAL-COMBUSTION ENGINE

1926 ◽  
Author(s):  
H. M. Jacklin
Keyword(s):  
Internal Combustion Engine ◽  
High Speed ◽  
Combustion Engine ◽  
Internal Combustion

The Compression-Ignition Engine and Its Applicability to British Railway Traction

1933 ◽  
Vol 124 (1) ◽  
pp. 3-61 ◽  
Author(s):  
L. F. R. Fell
Keyword(s):  
Internal Combustion Engine ◽  
High Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
High Rate ◽  
Wide Field ◽  
Compression Ignition ◽  
Electric Locomotive ◽  
Compression Ignition Engine ◽  
Railway Traction

The author considers that, while the internal combustion engine is not universally applicable to British railway traction, there is a wide field which can be more economically covered by the oil engine than by other means. Electric transmission is, in spite of high first cost, the most readily adaptable for use in conjunction with the oil engine, and possesses a balance of advantages over all other known systems. The oil-electric locomotive offers a long list of important advantages for railway operation not possessed by other systems. These advantages are, however, offset by high first cost for powers of 1,000 b.h.p. and over. A comparison is drawn between the first cost of steam and oil-electric locomotives for the various duties called for in the service of a British railway. This shows that, while the first cost of the oil-electric main line express passenger locomotive is three times that of the existing steam locomotive, the first costs of branch passenger, medium goods, and shunting steam and oil-electric engines are comparable. This is owing to the cost per brake horse-power required diminishing with increase of size in the case of the steam locomotive, whereas it remains constant in the case of the oil-electric. Owing to the high rate of acceleration necessary the use of the oil-electric system is considered unsuitable as a substitute for dependent electrification of suburban lines. The railway oil engine is a specialized requirement. It must be of the high-speed type running at speeds of up to 1,500 r.p.m., in order to reduce first cost and for other reasons. Details are given of various types of British compression-ignition engines which are considered suitable for British railway work. The author deduces that an engine of twelve-cylinder “V” type and an engine with six cylinders in line, both incorporating the same design and size of cylinder, would fill all the requirements which can be economically met by the oil engine on a British railway. He selects the single sleeve-valve engine design as having the greatest balance of advantages in its favour for railway purposes. Attention is drawn to the importance of simplifying the installation of the compression-ignition engine and various suggestions are put forward to this end. In conclusion the author stresses the importance of the railway companies giving a lead to the internal combustion engine industry as to the railway requirements in size and type of engine, and states that it is the purpose of his paper to assist those concerned in arriving at this immediately important decision.

Surging in Helical Valve Springs

1933 ◽  
Vol 37 (271) ◽  
pp. 641-654
Author(s):  
J. Dick
Keyword(s):  
Internal Combustion Engine ◽  
High Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Helical Spring ◽  
Dynamic Effects ◽  
Helical Springs ◽  
Air Resistance ◽  
Speed Of Propagation

The high-speed internal combustion engine presents many problems arising from dynamic effects. Amongst these is the phenomenon known as “ surging ” in the helical springs used for the operation of the valves.If a helical spring is held at both ends, any disturbance in the spring passes up and down as a wave, being reflected at each end in turn. This to and fro movement continues until it is damped out by friction and air resistance. With most springs the speed of propagation of the disturbance is considerable and only a confused flutter of the coils is apparent to an observer. A disturbance of this type is caused by any movement of the end of the spring. The more abrupt the movement of the end, the more pronounced will the disturbance be. An instance of the type of movement producing a pronounced surge is that due to impact between the tappet and the valve when the valve commences to open.

Simulation and Test for Turbine Air Powered Engine

2014 ◽  
Vol 945-949 ◽  
pp. 2810-2814
Author(s):  
Jing Liu ◽  
Jing Tao Han ◽  
Jin Chun Deng
Keyword(s):  
Internal Combustion Engine ◽  
High Speed ◽  
Exergy Analysis ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Exergy Loss ◽  
Bench Test ◽  
Reduced Pressure ◽  
Low Speed ◽  
New Type

Turbine Air Powered Engine (TAPE) is a new type engine which has the character of zero emission, no pollution. Mathematical models of TAPE were established by the method of exergy analysis, the overall exergy and the exergy loss after reduced pressure with throttling were simulated in this paper. The results show that the maximum exergy loss of system is 60% during the process of reduced pressure with throttling, so the type of throttling decompression is not suitable for the system of TAPE which has bigger pressure reducing ratio. The results of bench test indicate that output power increases with the increase of inlet pressure within the scope of less pressure, and the regulation is similar to the simulating result. In the hybrid system of pneumatic internal-combustion engine, the measure which the air powered system is used in low-speed stage and the internal combustion engine powered system is adopted in high-speed stage can effectively solve the problem which the fuel consumption of the internal combustion engine is too bigger at low speed.

scholarly journals An optical method for measuring exhaust gas pressure from an internal combustion engine at high speed

2017 ◽  
Vol 88 (12) ◽  
pp. 125004 ◽  
Author(s):  
Felix C. P. Leach ◽  
Martin H. Davy ◽  
Dmitrij Siskin ◽  
Ralf Pechstedt ◽  
David Richardson
Keyword(s):  
Internal Combustion Engine ◽  
Optical Method ◽  
High Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Gas Pressure ◽  
Exhaust Gas

Development and Analysis of Wall Models for Internal Combustion Engine Simulations Using High-speed Micro-PIV Measurements

2016 ◽  
Vol 98 (1) ◽  
pp. 283-309 ◽  
Author(s):  
Peter C. Ma ◽  
Tim Ewan ◽  
Christopher Jainski ◽  
Louise Lu ◽  
Andreas Dreizler ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
High Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Piv Measurements ◽  
Micro Piv ◽  
Wall Models

Analysis of Temperature Field of High Speed Diesel Engine Parts and their Structural Optimization

2014 ◽  
Vol 490-491 ◽  
pp. 1003-1007 ◽  
Author(s):  
Yan Ping Ji ◽  
Ping Sun ◽  
Si Bo Zhao
Keyword(s):  
Internal Combustion Engine ◽  
Heat Balance ◽  
Thermal Load ◽  
High Speed ◽  
Combustion Engine ◽  
Simulation Method ◽  
Internal Combustion ◽  
Heat Transfer Process ◽  
Balance Study ◽  
And Performance

The analysis of structure and performance of internal combustion engine is presented in this paper from the following two aspects: the thermal load of I. C. Engine and the thermal efficiency of diesel engines. Firstly, the thermal load of key parts of I. C. Engine as well as the evaluation parameters of which are introduced briefly. Furthermore, based on the factors influencing the heat transfer process of internal combustion engine, the current research situation of internal combustion engine work process and heat balance for combustion chamber components, and the whole engine using numerical simulation method is described, while the coupled study of internal combustion engine components is developing trends of internal combustion engine heat balance study in the future.

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