RU117517U1 - EXTERNAL HEATING ENGINE - Google Patents

Abstract

An external heating engine containing a cylinder with a piston, a crank mechanism connected to the piston, and a chamber, characterized in that a coolant supply line is introduced into the chamber, a controlled valve, a cold coolant supply line and a hot coolant supply line, which are connected to the supply line coolant into the chamber through a controlled valve, while the chamber is filled with a working fluid, which is in direct contact with the pipeline for supplying the coolant to the chamber, made in the form of a coil, and connected to the cylinder by a pipeline for supplying the working fluid to the cylinder with a piston to ensure contact of the working fluid with the piston connected to the crank mechanism.

Description

The utility model relates to the field of power plants and volume displacement engines, in particular to engines operating on the principle of converting volume expansion and compression of a working fluid (liquid or gas) into rotational or reciprocating mechanical motion.

The well-known Stirling engine is a direct-cycle energy converter with an external supply of heat, including a combustion chamber and a refrigerator [G. Reeder, C. Hooper. Stirling engines. M.: Mir, 1986, p. 55].

The disadvantage of this engine is its relatively low efficiency.

A device is also known that includes a direct-cycle converter (engine) with an electric generator on one shaft, a fuel supply line, a heat exchanger-heat exchanger of heat of high-temperature engine exhaust gases, through which an engine exhaust gas pipeline passes, an engine cooling system connected through an exchanger to an external heat supply system, as well as equipped with a direct cycle converter, a Stirling engine, a heat exchanger-utilizer of high-temperature exhaust gases of a motor Stirling fir-tree, made in the form of a steam generator, a steam-water pump - a heater, a heat exchanger - a utilizer of low-temperature exhaust gases from the Stirling engine, a heat exchanger-cooler, and also a water main with a control valve, which is divided into a line with a control valve passing through the heat exchanger-cooler and the steam generator a line with a control valve passing through the heat exchanger-utilizer of the low-temperature exhaust gases of the Stirling engine into a steam-water heating pump atelier, with a high-pressure steam line going from the steam generator to the steam-water heater pump, and a hot water supply line coming from the steam-water heating pump, while the exhaust gas line of the Stirling engine passes first through the steam generator and then through the heat exchanger-heat exchanger of low-temperature waste gases [RU (11) 2187680 (13) C1 (51) IPC 7 F02G 1/04, B63G 8/36, 2006].

The disadvantage of this device is also a relatively low efficiency

In addition, an external heating engine (alpha-modification of the Stirling engine) is known, comprising a crankshaft of a hot group and a crankshaft of a cold group, a group of hot cylinders with pistons and a corresponding group of connecting rods connected on one side to the hot pistons, and on the other hand with a crankshaft of a hot group, a group of cold cylinders with pistons and a corresponding group of connecting rods connected on one side with cold pistons, on the other hand with a crankshaft of a cold group, a group of tubes, soy inyayuschih pairs of hot and cold cylinders, comprising a heat recovery device, a transmission connecting the crankshaft hot group crankshaft cold group, a combustor, a compressor air supply to the combustion chamber and a heat exchanger [Engine Scotch pastor. “Engine”, No. 5, 2005. www.engine.aviaport.ru/issues / 3 9 / page 26. html].

The disadvantage of this engine is also a relatively low efficiency.

The closest in technical essence to the proposed one is an external heating engine containing a crankshaft of a hot group and a crankshaft of a cold group, a group of hot cylinders with pistons and a corresponding group of rods connected on one side with hot pistons, and on the other hand with a crankshaft hot group, a group of cold cylinders with pistons and a corresponding group of connecting rods connected on one side to cold pistons, on the other hand, with a crankshaft of a cold group, a group of pipes k, connecting pairwise cold and hot cylinders and containing a heat recovery device, a transmission connecting the crankshaft of the hot group to the crankshaft of the cold group, a combustion chamber, an air supply compressor to the combustion chamber and a heat exchanger, a fuel pump, while the dimensions of the hot cylinders of the group and cold cylinder groups are selected from a given ratio [RU 2332582, C1, F02G 1/043, 08/27/2008].

The disadvantage of the closest technical solution is the relatively high complexity caused by the presence of at least two cylinders - hot and cold, and a heat recovery device.

The required technical result is to simplify the device.

The required technical result is achieved in that, in a device containing a cylinder with a piston, a crank mechanism connected to the piston, and a chamber, a coolant supply pipe to the chamber, a controlled valve, a cold coolant supply pipe and a hot coolant supply pipe, are connected with the pipeline supplying the coolant to the chamber through a controlled valve, while the chamber is filled with a working fluid, which is in direct contact with the pipeline supplying the coolant into Yeru formed in a coil and connected to the cylinder working fluid supply conduit into the cylinder with the piston for contacting the working fluid to a piston connected to a crank mechanism.

The drawing shows the design of an external heating engine.

The drawing shows: pipeline 1 for supplying coolant to the chamber, working fluid 2, controlled valve 3, pipeline 4 for supplying coolant, pipe 5 for supplying coolant, chamber 6, cylinder 7 with a piston, crank mechanism 8, pipe 9 for supplying the working fluid into the cylinder, piston 10.

In the external heating engine, the coolant supply pipe 4 and the hot coolant supply pipe 5 are connected to the coolant supply pipe 1 to the chamber through a controlled valve 3, the chamber 6 is filled with a working fluid 2 (gas or liquid), which is in direct contact with the coolant supply pipe 1 in the chamber, made in the form of a coil, and the chamber 6 is connected to the cylinder 7 by a pipeline 9 for supplying the working fluid to the cylinder with a piston to ensure contact of the working fluid with the piston connected to crank mechanism 8.

The external heating engine operates as follows.

The energy is converted using a piston 10 and a crank mechanism 8. The design of the chamber 6 assumes that the main volume is occupied by the working fluid 2 (gas or liquid), and inside the chamber 6 there is a pipeline 1 for supplying coolant to the chamber, through which hot and cold coolant. Controlled valve 3 (controls are not shown in the drawing), regulating the alternate flow of cold and hot coolants are taken out of the chamber. The valve 3 can be controlled mechanically from a crank mechanism or be electronic. The coolant supply can be either forced or by convection. The start (stop) of the external heating engine and the control of operation modes are carried out by reducing (increasing) the heat supply.

Upon receipt of the coolant, the working fluid 2 is heated (cooled), which through the pipe 9 enters the cylinder 7 and interacts with the piston 10. The passage of the “dead point” is provided by the flywheel in a single-cylinder machine or by other cylinders in a multi-cylinder machine. When the crank mechanism 8 passes the “dead” point, the controlled valve 3 is switched. When the controlled valve 3 is switched, the coolant from the hot heating coolant supply pipe 5 is completed and the cold coolant starts to flow from the cold coolant supply pipe 4. The working fluid 2 is compressed, which leads to the movement of the piston 10 in the opposite direction. The external heating engine has two strokes per cycle. It can be implemented in a multi-cylinder version.

Thus, due to the fact that instead of at least two cylinders, only one cylinder with a piston is used, which is connected to the crank mechanism, and the need for a heat recovery device is eliminated, the desired technical result is achieved, which consists in simplifying the device.

Claims (1)

An external heating engine comprising a cylinder with a piston, a crank mechanism connected to the piston, and a chamber, characterized in that a coolant supply pipe is introduced into the chamber, a controlled valve, a coolant supply pipe and a hot coolant supply pipe that are connected to the supply pipe the coolant into the chamber through a controlled valve, while the chamber is filled with a working fluid, which is in direct contact with the pipeline supplying the coolant into the chamber ohm as a coil, and is connected to the cylinder working fluid supply conduit into the cylinder with the piston to provide a working fluid contact with the piston connected with the crank mechanism.