SU504511A3 - Multi-cylinder engine-stirling - Google Patents

Description

(54) MULTI-CYLINDER MOTOR-STYRLIM

FIELD OF THE INVENTION The invention relates to engine building. Known multi-cylinder Stirpings with double-acting pistons, containing heat exchangers by the number of cylinders mounted between them and connected to a heater. However, the known engines are bulky and have low efficiency. The purpose of the invention is to increase the efficiency of the engine. For this, the cylinders are placed V-shaped and a common crankshaft is installed in their collapse, and the heater partially covers the cylinders and heat exchangers. In FIG. 1, the main parts of the engine are schematically shown in perspective: in FIG. 2 - the same, disassembled, but with an indication of the relative position corresponding to the assembled engine, pistons, crossheads, connecting rods and engine crankshaft; in fig. 3 - relative arrangement of cylinders and heat exchangers in the engine, top view; in fig. 4 shows a section HA-A in FIG. 1. The cylinder block .1 is attached to the crankcase 2. Block 3, which includes a heater 4. cylinder heads 5 and heat exchanger heads 6. is shown separated from the block ai-. lindrov 1. The engine has a crankshaft 7 driven by four rods 8, each of which is connected to a crosshead 9 and the body C) with IgKOM 11. The cylinder block 1 consists of four cylinders 12-15 and four heat exchangers 12a, 13a, 14a and 15a, located in cylindrical cavities. The geometric axis of the crankshaft is indicated by a dash-dotted line {line 16. Each of the four volumes; The working gases separated by the pistons in cylinders 12-15 are displaced through a period of time determined by turning the crankshaft through 9O relative to the previous and subsequent cycles. I Space 17, under porishe 10, is connected; by means of channel 18, it is connected with a heat exchanger having a cooling unit 19 and a regenerator 20 (see Fig. 4). Upper part of the heat exchanger is connected

21 heaters. The space under the piston in the cylinder 12 is connected to the heat exchanger 15a. Consequently, the space under the piston in the cylinder 13 is connected to the heat exchanger 12a, the space under the piston of the cylinder 14 is connected to the heat exchanger 1 Za, and the space under the piston of the cylinder 15 is connected to the heat exchanger 14a (see Fig. 1 and 4).

The space 22 above the piston 10 of the cylinder 12 is connected to the heater tubes 23. The tubes of unit 3 are divided into four sections (see Fig. 1), and these sections are not interconnected. The tubes "communicated with cylinder 12" also communicate with heat exchanger 12a and form one section. Similarly, another heater tube section connects the upper part of the cylinder 13 to the upper part of the heat exchanger 1; one third of the heater tube connects the upper part of the cylinder 14 to the upper part of the heat exchanger 14a; a fourth section of the tubes connects the upper part of the cylinder 15c to the upper part of the heat exchanger 15a.

In the space between the cylinders and the heat exchangers is located the central part 24 of the combustion chamber and part of the preheater 25,

The common heater 25 used in this engine design is located

centrally with respect to the cylinders 12, 13, 14 and 15 to the heat exchangers 12a, 13a, 14a and 15a and partially covers the cylinders and heat exchangers in the vertical direction.

When working along the well-known Stirling cycle, i.e., circulating the working fluid in a closed loop through a refrigerator, a heat exchanger and a heater, the location of the combustion chamber of the heater with partial coverage of the cylinders and heat exchangers increases the efficiency of heat transfer from it and, therefore, is economical. engine as a whole.

Compact engine and engine construction,

The use of standard elements makes it suitable for installation on automobiles.

invention formula

Multi-cylinder engine - Stirling with double-acting pistons, containing heat exchangers according to the number of cylinders installed between them and connected to a heater, characterized in that, in order to improve efficiency, the cylinders are placed V-shaped and in their collapse a common crankshaft is installed,

and the heater partially covers the cylinders HI heat exchangers.

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