Public Design Bureau

THE ENGINE OF THE “BURAN”: REVEAL RESERVES

30.05.201813.05.2018Design

The engine RMZ-640 “Buran” Rybinsk engine production plant is widely used not only on the same snowmobile, but deltalyo. However, if a separate snowmobile owners its characteristics in some way satisfied, then the pilots — with a few exceptions. And the constant threat of overheating of the cylinders and pistons burnout know many people who for a long time dealing with RMZ. So deltaleft trying to replace “shestistrunnoi” engine better, possibly imported or, at worst, to improve.

CATAMARAN MUSCOVITE VARLAMOVA

30.05.201813.05.2018Auto Moto Service

In no time the rivers and oserv clean ice, thousands and thousands of followers boating begin to prepare for the new season. Dostum out of the closets and garvia their “sklodowski” and “naduvnushki” out of winter shelters yachts and boats. Those who lives near water or has in his possession a vehicle, unknown problems burdening the lives of “horseless” lover of water travel. How many will take? Only “sladushka” or “nadobnost”. And that is not one, since even a tightly Packed boats requires a separate carrier. And another tent, food…

A BAG OF FLOUR FOR A FEW MINUTES

30.05.201813.05.2018Small-scale mechanization

echnology the manufacture of major components of the mill are quite simple. From thick-walled pipe 60×10 mm should be cut on the machine supporting sleeve and “grab” it to gas or electric to advance cut a circle out of smooth steel sheet with a thickness of about 10 mm. Then, while holding the “oven MITT” in the Chuck of the lathe, the handle to the required size billet cap so that the socket diameter 332 mm coincided with the sizes of available drum. Likewise be made and a second drive.

BANK-ACTIVATOR

30.05.201813.05.2018Small-scale mechanization

Getting a series of experiments related to the breeding of cold-resistant varieties of corn, I remembered about the amazing properties of water, treated with a constant electric current. In particular, that formed in the zone of the cathode, the catholyte has reducing (alkaline) properties and behaves according to the truth as “living” water, in contrast to its antipode — anolyte, a kind of oxidizer, or “dead” water produced in the area of the anode.Relying on high biological activity of the catholyte, decided to treat a handful of seeds before sowing in progressiya the ground. “Living” water was required very little. But where is the “spring”, from which it can be obtained?

TRICYCLE WITH ROLL

30.05.201813.05.2018Design

The history of car industry it is known that the first car was three-wheeled crew K. Benz. In the future, with increasing speed, was replaced by four-wheeled machine, the more stable in the turns. However, the designers did not leave the desire to create a three-wheeled chassis of the same resistance. It is constructively easier and lighter with the same capacity, therefore more reliable and cheap to operate.

PENDULUM WITH ZAMOSTOTSKIY

30.05.201813.05.2018Small-scale mechanization

The proposed machine is designed primarily for disposal of dilapidated wooden buildings on the wood. Because of the many nails sticking out everywhere, this waste material can not afford a chainsaw “Friendship”, and therefore worth a few pennies. Cheapness, of course, attracts. Stops other: than and how to cut this here, bristling with “raviel” a conglomeration of old boards, beams, logs?

CATAMARAN FOR FOUR

30.05.201813.05.2018Design

For water hikes inflatable catamaran has a number of advantages over the kayak. It is high reliability, great stability, with satisfactory maneuverability, increased permeability of the rapids sections, low weight, comfort, and convenience for boarding and alighting. In the end, the benefits outweigh the known disadvantages of a catamaran — high windage hull with the crew and low speed when driving on the oars. Propose a simple design of a catamaran, which used available materials.

RECUMBENT: LET’S HIT THE ROAD!

30.05.201813.05.2018Design

In the late 70-ies in the press, especially in the journal “modelist-Konstruktor”, wrote a lot about velomobiles. Was presented designs of various authors. Some argued that a new form of transport, which in the future will press not only a bike but a car. However, nothing happened. Why? A simple answer to this question is difficult. Will only Express some thoughts.

CHANGE ROUND TO OVAL

30.05.201813.05.2018Design

A letter from our reader V. Zasyadko prompted the idea to go back to the old idea of replacing the round sprocket of the bike Ellipso, which leads to the alignment torque generated by the efforts of the cyclist when pedaling. According to cyclists, the idea deserves attention, and the embodiment of her life — not too time consuming even at home. The recommendations V. Zasyadko calculation ellipse-tion of stars and of its manufacturing technology.

TRACTOR-TRUCK: A SMALL, BUT VALIANT

30.05.201813.05.2018Small-scale mechanization

The first homemade motorized assistant appeared in our family almost 20 years ago. We made it V. Il’ichev development of the suburbs, published in the journal “modelist-Konstruktor”. And found how good it is to have the farm walk-behind tractor-wagon, which in any case will not fail, be it tillage or the cleaning and removal of crops from the field.