ES371242A1 - Hot gas engine - Google Patents

Abstract

A hot gas engine comprising one or more workspaces, each of which communicates, if desired through a check valve that allows flow in the direction of the respective workspace, with a conduit for the inlet medium, which comprises a controllable supply stopcock, further communicating each workspace with a medium outlet duct, if desirable through a check valve that prevents the flow of the medium in the direction of the respective work, in which the extraction of the medium through said conduit can be controlled by means of a controllable exhaust stopcock and in which, in addition, a communication conduit is provided between each workspace and a space in the which is the same media as in the workspace, or a communication conduit is present between the media inlet duct and the media outlet duct, and a Bypass stopcock in said communication conduit or conduits that is continuously controllable between its closed position and its fully open position, characterized in that a first control device is present movable against the action of a spring to control the keys supply and exhaust valve and, when moving against the action of the spring, brings the supply stopcock to its feeding position and, when moving in the direction of the action of the spring, carries the escape to its escape position, movement being limited in the direction last mentioned by a first fixed stop member, a second control member which is also movable against the action of a spring which is furthermore present to control the key bypass passage, control device, which when moving against the action of the spring, closes the bypass member or moves it to its closed position and, when moving in the direction of the action of the spring opens or opens it further, the movement of said control device being in the direction of the action of the spring limited by the second stop member, each of the two control devices coupled to a pressure-sensitive element that, according to the pressure in the space of the engine space or workspaces, assumes a given position in such a way that, when the pressure in the space or workspaces increases or decreases, the adjustment of the two control devices varies in the sense that the supply stopcock moves to its closed position and the exhaust stopcock moves to its non-exhaust position, respectively, and the bypass member moves to their closed position with the first and second stop members being arranged so that the distance over which the first control device is movable in the direction of the action of the spring is less than the distance over e which the second control device is movable in said direction, the motor further comprising an element sensitive to the number of revolutions and that, when the number of revolutions falls below a number of revolutions for zero load that can be adjustable, if it is desirable to move the second control device away from the second stop member, the second control device being constructed so that, in a position of the two control devices in which the bypass member is closed and the stopcocks supply and exhaust both assume their non-supply and non-escape position, respectively, movement of the second control device also results in movement of equal magnitude of the first control device. (Machine-translation by Google Translate, not legally binding)