Device for maintaining constant the distance between adjacent surfaces of a reference body and a movable body subject to a variable external force

Claim 1

A DEVICE FOR MAINTAINING CONSTANT IN A DETERMINED DIRECTION THE DISTANCE BETWEEN ADJACENT AND LIGHTLY SPACED SURFACE OF A REFERENCE BODY (2) AND OF A MOVABLE BODY (1), SAID MOVABLE BODY BEING SUBJECTED TO AN OUTER VARIABLE FORCE AND TO AN ANTAGONISTIC FORCE EXERTED IN AT LEAST TWO PRESSURE ZONES (3,4) LOCATED OPPOSITE EACH OTHER, FLUID CIRCUITS UNDER PRESSURE CONTROLLING SAID PRESSURE ZONES, SAID DEVICE COMPRISING A CORRECTOR ELEMENT (14) SLIDABLE IN THE REFERENCE BODY (2) IN THE MANNER OF A SLIDE VALVE, THE DISTANCE OF WHICH TO THE MOVABLE BODY (1) DETERMINING THE PRESSURE IN A PRIMARY GAS CIRCUIT IN WHICH A FLOW OF GAS, AT A CERTAIN FEED PRESSURE, TAKES PLACE THROUGH TWO ORIFICES, ONE OF SAID ORIFICES CONSISTING OF A NOZZLE (16) WITH THE CROSS SECTION 01 AND THE OTHER BEING COMPOSED OF THE SURFACE(L1 X D1) OF A CYLINDER WHOSE BASE IS THE PERIMETER CIRCUMFERENCE (L1) FORMING THE LIPS OF AN OPENING (17) PROVIDED IN THE CORRECTOR ELEMENT (14) AND WHOSE HEIGHT IS THE DISTANCE (D1) BETWEEN THE PLANE OF THE SAID CIRCUMFERENCE AND THE SURFACE OF THE MOVABLE BODY (1), THE DISTANCE FROM A WALL INTEGRAL WILL THE REFERENCE BODY (2) DETERMINING THE PRESSURE IN A SECONDRY GAS CIRCUIT IN WHICH A FLOW OF GAS, AT THE SAME FEED PRESSURE, TAKES PLACE THROUGH TWO SECONDARY ORIFICES OF THE SAME NATURE AS THOSE OF THE PRIMARY CIRCUIT AND PLACED IN THE SAME ORDER, ONE OF SAID SECONDARY ORIFICES CONSISTING OF A NOZZLE (19) WITH THE CROSS SECTION O2 AND THE OTHER BEING COMPOSED OF THE SURFACE L2 X D2 OF A CYLINDER WHOSE BASE IS THE PERIMETER CIRCUMFERENCE, L2 FORMING THE LIPS OF AN OPENING (21) WHICH IS PART OF THE REFERENCE BODY AND COMMUNICATES WITH SAID CORRECTOR ELEMENT (14), THE HEIGHT OF SAID OTHER SECONDARY ORIFICE BEING THE DISTANCE D2 BETWEEN THE PLANE OF THE SAID CIRCUMFERENCE AND THE CORRESPONDING FACE OF THE ADJACENT CORRECTOR (14), THE ASSEMBLY BEING SO ARRANGED THAT THE PRESSURES P1 AND P2 OF THE PRIMARY AND SECONDARY GAS CIRCUITS ACT RESPECTIVELY ON THE SURFACES S1 (23) AND S2 (24) OF THE CORRECTOR (14) IN SUCH DIRECTIONS THAT AN ELEMENTARY DISPLACEMENT OF THE MOVABLE BODY (1) CAUSES A DISPLACEMENT IN THE OPPOSITE DIRECTION OF THE CORRECTOR (14), THE VARIOUS VALUES O1, L1 O2 AND L2, ON WHICH THE VALUES OF P1 AND P2 DEPEND, BEING DETERMINED IN SUCH A WAY THAT THE PRODUCT OF P1 BY S1 IS ALWAYS EQUAL TO THE PRODUCT OF P2 BY S2, WHATEVER THE FEED PRESSURE, PROVIDED ONLY THAT THE DISTANCE D2 OF THE CORRECTOR (14) FROM THE WALL INTEGRAL WITH THE REFERENCE BODY (2) IS EQUAL TO THE DISTANCE D1 OF THE CORRECTOR (14) FROM THE MOVABLE BODY (1) WHICH FORCES THE LATTER TO REMAIN IN A PREDETERMINED POSITION, A DISTRIBUTOR (25) ADAPTED TO REGULATE THE PRESSURE IN AT LEAST ONE OF THE FLUID CIRCUITS WHICH FEED THE TWO OPPOSITE PRESSURE ZONES (3,4) AS A FUNCTION OF THE POSITION OCCUPIED BY THE CORRECTOR (14) SO THAT THE PRESSURE OF THE FLUID IN SAID ZONES VARIES IN SUCH A DIRECTION THAT THE VARIATION OF THE FORCE ACTING ON THE MOVABLE BODY HAS A TENDENCY TO OPPOSE THE VARIATION OF THE OUTER FORCE, SO THAT THE CORRECTOR (14) CAN ONLY FIND ITS EQUILIBRIUM WHEN THE MOVABLE BODY (1) OCCUPIES THE SAID PREDETERMINED POSITION WITH REGARD TO THE REFERENCE BODY (2) AND THAT ANY DISPLACEMENT OF THE MOVABLE BODY (1) FROM THE SAID POSITION, CAUSED BY THE VARIATION OF THE OUTER FORCE, HAS THE EFFECT OF DISTURBING THE EQUILIBRIUM OF THE PRESSURES ACTING ON THE TWO FACES OF THE CORRECTOR (14) AND OF PRODUCING A DISPLACEMENT OF SAID CORRECTOR (14), WHICH IN TURN RESULTS IN THE ANTAGONISTIC FORCE EXERTED BY THE FLUID BY MEANS OF THE DISTRIBUTOR TO BE VARIED AND CREATE A NEW STATE OF EQUILIBRIUM BY BRINGING THE MOVABLE BODY (1) TO ITS PREDETERMINED POSITION WITH REGARD TO THE REFERENCE BODY (2).

Claim 2

A DEVICE FOR MAINTAINING CONSTANT IN A DETERMINED DIRECTION THE DISTANCE BETWEEN ADJACENT AND LIGHTLY SPACED SURFACE OF A REFERENCE BODY (2) AND OF A MOVABLE BODY (1), SAID MOVABLE BODY BEING SUBJECTED TO AN OUTER VARIABLE FORCE AND TO AN ANTAGONISTIC FORCE EXERTED IN AT LEAST TWO PRESSURE ZONES (3,4) LOCATED OPPOSITE EACH OTHER, FLUID CIRCUITS UNDER PRESSURE CONTROLLING SAID PRESSURE ZONES, SAID DEVICE COMPRISING A CORRECTOR ELEMENT (14) SLIDABLE IN THE REFERENCE BODY (2) IN THE MANNER OF A SLIDE VALVE, THE DISTANCE OF WHICH TO THE MOVABLE BODY (1) DETERMINING THE PRESSURE IN A PRIMARY GAS CIRCUIT IN WHICH A FLOW OF GAS, AT A CERTAIN FEED PRESSURE, TAKES PLACE THROUGH TWO ORIFICES, ONE OF SAID ORIFICES CONSISTING OF A NOZZLE (16) WITH THE CROSS SECTION 01 AND THE OTHER BEING COMPOSED OF THE SURFACE(L1 X D1) OF A CYLINDER WHOSE BASE IS THE PERIMETER CIRCUMFERENCE (L1) FORMING THE LIPS OF AN OPENING (17) PROVIDED IN THE CORRECTOR ELEMENT (14) AND WHOSE HEIGHT IS THE DISTANCE (D1) BETWEEN THE PLANE OF THE SAID CIRCUMFERENCE AND THE SURFACE OF THE MOVABLE BODY (1), THE DISTANCE FROM A WALL INTEGRAL WILL THE REFERENCE BODY (2) DETERMINING THE PRESSURE IN A SECONDRY GAS CIRCUIT IN WHICH A FLOW OF GAS, AT THE SAME FEED PRESSURE, TAKES PLACE THROUGH TWO SECONDARY ORIFICES OF THE SAME NATURE AS THOSE OF THE PRIMARY CIRCUIT AND PLACED IN THE SAME ORDER, ONE OF SAID SECONDARY ORIFICES CONSISTING OF A NOZZLE (19) WITH THE CROSS SECTION O2 AND THE OTHER BEING COMPOSED OF THE SURFACE L2 X D2 OF A CYLINDER WHOSE BASE IS THE PERIMETER CIRCUMFERENCE, L2 FORMING THE LIPS OF AN OPENING (21) WHICH IS PART OF THE REFERENCE BODY AND COMMUNICATES WITH SAID CORRECTOR ELEMENT (14), THE HEIGHT OF SAID OTHER SECONDARY ORIFICE BEING THE DISTANCE D2 BETWEEN THE PLANE OF THE SAID CIRCUMFERENCE AND THE CORRESPONDING FACE OF THE ADJACENT CORRECTOR (14), THE ASSEMBLY BEING SO ARRANGED THAT THE PRESSURES P1 AND P2 OF THE PRIMARY AND SECONDARY GAS CIRCUITS ACT RESPECTIVELY ON THE SURFACES S1 (23) AND S2 (24) OF THE CORRECTOR (14) IN SUCH DIRECTIONS THAT AN ELEMENTARY DISPLACEMENT OF THE MOVABLE BODY (1) CAUSES A DISPLACEMENT IN THE OPPOSITE DIRECTION OF THE CORRECTOR (14), THE VARIOUS VALUES O1, L1 O2 AND L2, ON WHICH THE VALUES OF P1 AND P2 DEPEND, BEING DETERMINED IN SUCH A WAY THAT THE PRODUCT OF P1 BY S1 IS ALWAYS EQUAL TO THE PRODUCT OF P2 BY S2, WHATEVER THE FEED PRESSURE, PROVIDED ONLY THAT THE DISTANCE D2 OF THE CORRECTOR (14) FROM THE WALL INTEGRAL WITH THE REFERENCE BODY (2) IS EQUAL TO THE DISTANCE D1 OF THE CORRECTOR (14) FROM THE MOVABLE BODY (1) WHICH FORCES THE LATTER TO REMAIN IN A PREDETERMINED POSITION, A DISTRIBUTOR (25) ADAPTED TO REGULATE THE PRESSURE IN AT LEAST ONE OF THE FLUID CIRCUITS WHICH FEED THE TWO OPPOSITE PRESSURE ZONES (3,4) AS A FUNCTION OF THE POSITION OCCUPIED BY THE CORRECTOR (14) SO THAT THE PRESSURE OF THE FLUID IN SAID ZONES VARIES IN SUCH A DIRECTION THAT THE VARIATION OF THE FORCE ACTING ON THE MOVABLE BODY HAS A TENDENCY TO OPPOSE THE VARIATION OF THE OUTER FORCE, SO THAT THE CORRECTOR (14) CAN ONLY FIND ITS EQUILIBRIUM WHEN THE MOVABLE BODY (1) OCCUPIES THE SAID PREDETERMINED POSITION WITH REGARD TO THE REFERENCE BODY (2) AND THAT ANY DISPLACEMENT OF THE MOVABLE BODY (1) FROM THE SAID POSITION, CAUSED BY THE VARIATION OF THE OUTER FORCE, HAS THE EFFECT OF DISTURBING THE EQUILIBRIUM OF THE PRESSURES ACTING ON THE TWO FACES OF THE CORRECTOR (14) AND OF PRODUCING A DISPLACEMENT OF SAID CORRECTOR (14), WHICH IN TURN RESULTS IN THE ANTAGONISTIC FORCE EXERTED BY THE FLUID BY MEANS OF THE DISTRIBUTOR TO BE VARIED AND CREATE A NEW STATE OF EQUILIBRIUM BY BRINGING THE MOVABLE BODY (1) TO ITS PREDETERMINED POSITION WITH REGARD TO THE REFERENCE BODY (2).