SU1490317A1 - Heat engine - Google Patents

Abstract

The invention relates to heat engines, namely, devices capable of converting thermal energy into mechanical energy with a small temperature difference, and can be used to drive various mechanisms. The invention makes it possible to increase work efficiency by using a wide class of actuators. The supply of heat to the evaporator-heater 1 causes an increase in the pressure in it of the liquid vapor. The fluid is squeezed out by increasing pressure through the cooler 2, the valve 8 and the actuator, while the useful power is withdrawn from the shaft 4 into the hydroaccumulator 5. The valves 10 and 12 are closed. After the liquid mirror is forced out into the refrigerator 2, its vapor begins to condense. The pressure in the evaporator heater drops, valve 8 closes, and valves 10 and 12 open. Due to the energy stored in the hydroaccumulator 5, the evaporator-heater 1 is filled through the pipeline 11 with liquid, after which the working cycle is repeated. 2 hp f-ly, 2 ill.

Description

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The invention relates to heat engines, namely, devices capable of converting thermal energy into mechanical energy with a small temperature difference, and can be used to drive various autonomously operating mechanisms.

The purpose of the invention is to poke efficacy

Figure 1 shows a schematic diagram of a heat engine; in fig. 2 - heat engine with an actuator in the form of a hydromotor with a membrane-type hydroaccumulator

The heat engine contains evaporator-heater 1, refrigerator 2, hydraulic motor 3 with power take-off shaft 4, hydroaccumulator 5 successively placed in the vapor-liquid path 6 partially filled with boiling liquid 7, the hydraulic motor 3 is separated by a check valve 8 from

cooler 2 and shunted by line 9 with a check valve 10, the section of the path 6 between the hydraulic motor 3 and the hydraulic accumulator 5 is connected to the pipeline 1I with the valve 12 to the section of the path 6 to the meldzu evaporator-heater 1 and the refrigerator 2.

The engine works as follows.

When heat is supplied to the evaporator 1, the liquid 7 evaporates and the pressure on the liquid mirror 7 in the evaporator 1 increases. Fluid 7 inflates with increased pressure through the cooler 2, valve 8 and hydraulic motor 3 through path 6 to the hydraulic accumulator 5. Valves IO and 12 are closed at the same time.

After the liquid mirror 7 has been pressed into the refrigerator 2, the vapor of the liquid 7 starts to condense. The pressure in the evaporator-heater 1 drops, the valve 8 closes and the valves 10, 12 open, and then

Due to the energy stored in the hydroaccumulator 5, the evaporator-heater 1 is filled through the pipe 11 through the open valve 12, the liquid 7, and the cycle repeats.

The shunt line 9 is used to circulate the liquid 7 during the inertial operation of the hydraulic motor 3. The useful power is taken from the shaft 4 when the liquid 7 is forced through the hydraulic motor 3.

The invention allows to divide the path 6 and the pipe 11 for filling the liquid 7 of the evaporator-heater 1, which expands the possibilities of using actuators of various types

Claims (1)

1. A heat engine containing successively placed in a vapor-liquid path filled with a light boiling liquid, an evaporator-heater, a refrigerator, an actuator, a hydraulic accumulator and a check valve, characterized in that in order to increase the efficiency of operation, the engine is additionally equipped with a pipeline with a check valve included in the path, respectively, between the actuator and the hydroaccumulator on one side and between the heater and the cooler on the other, as well as the bypass line with the reverse a separate valve connected to the path parallel to the actuator 2 A heat engine according to claim 1, characterized in that the actuator is designed as a hydraulic motor, ZoDvigatel on PP. 1 and 2, about T - which differs from the fact that the hydroaccumulator is made in the form of a membrane type hydroaccumulator. // I xV / er / :;