Thousands of sparks

Chapter 48 Internal Combustion Vehicles
Leaving the restaurant, there is still about an hour before the scheduled departure time for Newsail in the afternoon.Dusande decided to walk to the workshop to see how his research on Paulina was going.

Walking to a distance of one or two hundred joles from the workshop, Du Sande heard a familiar voice.

It was the sound of the continuous exhaust of the engine, which sounded like a continuous running sound of a car engine that was of poor quality and might be scrapped.

Moreover, the voice seemed to be getting louder.

Dusande squinted his eyes and looked into the distance, and immediately found a steam horse that had almost all its shell removed, and all its moving parts were exposed.

This steam horse did not drag the passenger carriage like other steam horses. Instead, it was a very simple riding platform - two wheels and a wooden board, and it was directly buckled on the naked steam horse through the wooden board. on the horse's shoulders.

It looked like a flat donkey cart that could only be seen in movies in my previous life.

The "steam horse" pulling the flat donkey cart has an engine that seems to be of an inappropriate size stuffed into its stomach. This machine, which is tied to the frame by iron wires of various sizes and thicknesses, is running at full capacity.On the horse's chest, a four-bladed wooden paddle is turning rapidly.Behind the fan, there is a cold row full of hand-made traces.

Polina is now dressed like a winter pilot during World War I, wrapped tightly in thick leather gloves and a thick leather jacket.

Dusande was able to recognize Polina because she had written her name very rough on her clothes.

"My lord." Polina, who was sitting on the donkey cart, saw Dusande.She screwed on the valve of the high-pressure gas bottle, then waved her hand excitedly at Dusand, "The coolant you sent works well, it's moving!"

"Congratulations, Teacher Polina." Dusande congratulated Polina enthusiastically with a happy face, "You are right, it is indeed the most important invention of this era!"

A flat donkey cart pulled by a struggling "steam horse" certainly cannot be "the most important invention of this era", but it is indeed an internal combustion engine that has been put into use.Dusande was very excited. He circled the donkey cart several times, and then stopped suddenly.

However, this "horse"... doesn't seem to be very easy to use.It walks slowly and often makes weird rattling noises.

Dusande raised the question, "This horse seems to have some problems with its operation, can this...can be solved?"

"I'm afraid it will be difficult." Speaking of this, Polina's expression of joy at the beginning suddenly turned bitter, "The torque of the gas engine is too small, it is difficult to drive the movement of these structures of the steam horse. I am considering whether to use it or not." To optimize the internal structure of the steam horse, at least consider removing the set of gears and levers that run at high speed—this may save a lot of weight and consumption.”

Dusand was about to encourage his teacher to continue his efforts in the field of engineering, when he suddenly slapped his thigh.

He was really distorted by this style of painting that was so far away from the edge.

Why should the internal combustion engine be installed in a steam horse?

"The steam engine has a large torque, so it can be used so luxuriously to drive a large number of gears and levers." Dusand said, "The gas engine does not have such a large torque, so... I think we can change our thinking." He pointed Pointing to the "flat donkey cart" behind Polina, he said, "It should be much more efficient to let the internal combustion engine directly drive the wheels?"

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Du Sande had seen the world's first car in a textbook, and it looked like a big three-legged car.

The first car invented by Karl Benz was, by the standards of modern cars, an absolute defect—it had only three wheels, a single-cylinder engine, and a drive belt and chain to drive the rear wheels forward.

And this thing doesn't have a gearbox, not only can't accelerate a lot, it can't even reverse.The speed of the car depends on whether the terrain it is driving is uphill or downhill.And since the differential was not invented, this kind of "car" can't even turn around at a large angle-the difference in the rotation of the inner and outer wheels will make the whole vehicle "bounce" when turning.

Mr. Karl Benz's invention has been ridiculed for quite some time as "useless waste", but this does not mean that Du Sande and Paulina will be ridiculed for a long time like Mr. Benz.In fact, a large number of key devices that modern cars should have exist in this world where the technology tree is so weird.

But in Reich, the gearbox was born long before the internal combustion engine.Toll Smith Company was able to make the steam machine tool to the height of "work of art", relying on the transmission device invented by itself.

It is impossible for a steam engine to be like an internal combustion engine. It can be started when it wants to start, and it can be turned off when it wants to be shut down.It takes a process to pressurize the boiler after combustion, and it takes time to release the pressure safely after shutdown.This is determined by the operating principle of the steam engine.

But in precision machining, ensuring that the power source is continuously reliable and can be terminated at any time when needed - this is an important condition for machining.A drill bit that cannot stop is equivalent to a drill bit that does not move in the field of machining.

It's useless anyway.

Therefore, when the steam machine tool was born, the invention of "clutch", which can temporarily and safely cut off the power and restore it in a short time, was also born at the same time.

On the basis of the clutch, Toll Smith has added a gearbox that can change the speed and direction of rotation of the cutter head.After stepping on the clutch, just pull the lever to the desired gear, then release the clutch - the cutter head can run at the speed and direction required by the processor.

In other words, Tollsmith invented the manual transmission.And this gearbox is getting more and more advanced now-an eight-speed manual gearbox with five forward gears and three reverse gears has become the standard configuration of all Tollsmith's products.

Advanced manual transmissions are already available, as are internal combustion engines.Dusande quickly described the car in his impression to Paulina, and then asked, "There is no problem with the drive form in theory, but we need a mechanism that can output power and solve the problem of different rotation angles of the wheels on both sides at the same time." .”

And Polina replied very straightforwardly, "This design is ready-made. I remember that the mining association issued this design request-they used this thing on the free-style transport mine car."

"That's all ready-made things." Du Sande said more and more happily, and he even had an idea, "If possible, can you make a working engineering prototype within a week? It needs four wheels. Drive, with a closed cockpit and a cargo box about the size of a steam wagon carriage. We will have a joint operation with the naval commandos later. If we can demonstrate the huge potential of internal combustion engine vehicles in front of them, then no Worry about no orders!"

"It should be possible." Polina said after a quick thought, "Then you need a transfer case to transmit power, and two front and rear differentials..." She seemed to have opened the door to a whole new world, excitedly As I imagined it, I quickly recorded it in my notebook, "Military vehicles do not necessarily have a flat road to walk on, and the suspension structure and drive structure need to be adjusted..."

Dusande watched Polina fall into the "frenzy", and he went around twice excitedly, and then said, "This kind of early equipment does not have to be perfect, but it must be durable."

"Don't worry, my good lord." Polina turned around excitedly and left, throwing away her donkey-pulled cart, "I'm going to perfect the design now, and I'll give you the sketch tonight look!"

　Happy New Year to all readers in advance!I wish you all a happy new year, good health and good luck in everything!
　　
　
(End of this chapter)