Device supplying a working fluid under a determined pressure

Claim 1

A device for supplying a working fluid under a determined pressure to a chamber means of variable volume comprising in combination a source of at least one pressurized fluid, said source containing a gas whose pressure varies with the volume occupied by the gas, and at least one group of jacks, an element of at least one jack of said group being connected through a moveable articulation to an element of at least another jack of said group, an element of at least one jack of said group which is not connected to said moveable articulation being rotatably mounted on a fixed point of an installation, said moveable articulation being compelled to move along a predetermined path, fixed with respect to the installation, said fixed point being so located that the axis of said jack having the rotatably mounted element remains inclined on said path during the rotation of the rotatably mounted element of said jack, at least one jack of said group being fed with pressurized fluid from said source, and at least one jack of said group supplying the working fluid to the chamber means of variable volume under a pressure different from that of said source.

Claim 2

A device for supplying a working fluid under a determined pressure to a chamber means of variable volume comprising in combination a source of at least one pressurized fluid, said source containing a gas whose pressure varies with the volume occupied by the gas, and at least one group of jacks, an element of at least one jack of said group being connected through a moveable articulation to an element of at least another jack of said group, an element of at least one jack of said group which is not connected to said moveable articulation being rotatably mounted on a fixed point of an installation, said moveable articulation being compelled to move along a predetermined path, fixed with respect to the installation, said fixed point being so located that the axis of said jack having the rotatably mounted element remains inclined on said path during the rotation of the rotatably mounted element of said jack, at least one jack of said group being fed with pressurized fluid from said source, and at least one jack of said group supplying the working fluid to the chamber means of variable volume under a pressure different from that of said source.

Claim 3

A device for supply supplying working fluid under a deteRmined pressure to a chamber means of variable volume comprising in combination a source of at least one pressurized fluid, said source containing a gas whose pressure varies with the volume occupied by the gas, and at least one group of jacks, an element of at least one jack of said group being connected through a moveable articulation to an element of at least another jack of said group, an element of at least one jack of said group which is not connected to said moveable articulation being rotatably mounted on a fixed point of an installation, said moveable articulation being compelled to move along a predetermined path, fixed with respect to the installation, said fixed point being so located that the axis of said jack having the rotatably mounted element remains inclined on said path during the rotation of the rotatably mounted element of said jack, at least one jack of said group being fed with pressurized fluid from said source, and at least one jack of said group supplying the working fluid to the chamber means of variable volume under a pressure different from that of said source, said group of jacks consisting of at least one pair of jacks, a first jack of said pair being fed with pressurized fluid from said source, the second jack of said pair supplying the working fluid to the chamber means of variable volume and in which said path is so determined that the ratio of the values of the cosines of the acute angles formed respectively by the first and second jacks with said path, varies in inverse proportion to the value of the pressure of the fluid of said source when said moveable articulation moves along the path.

Claim 4

A device for supply supplying working fluid under a deteRmined pressure to a chamber means of variable volume comprising in combination a source of at least one pressurized fluid, said source containing a gas whose pressure varies with the volume occupied by the gas, and at least one group of jacks, an element of at least one jack of said group being connected through a moveable articulation to an element of at least another jack of said group, an element of at least one jack of said group which is not connected to said moveable articulation being rotatably mounted on a fixed point of an installation, said moveable articulation being compelled to move along a predetermined path, fixed with respect to the installation, said fixed point being so located that the axis of said jack having the rotatably mounted element remains inclined on said path during the rotation of the rotatably mounted element of said jack, at least one jack of said group being fed with pressurized fluid from said source, and at least one jack of said group supplying the working fluid to the chamber means of variable volume under a pressure different from that of said source, said group of jacks consisting of at least one pair of jacks, a first jack of said pair being fed with pressurized fluid from said source, the second jack of said pair supplying the working fluid to the chamber means of variable volume and in which said path is so determined that the ratio of the values of the cosines of the acute angles formed respectively by the first and second jacks with said path, varies in inverse proportion to the value of the pressure of the fluid of said source when said moveable articulation moves along the path.

Claim 10

A device for compressing an hydraulic working fluid under a determined pressure in a chamber means having a variable volume, comprising at least one accumulator containing a gas under pressure and connected to a regulating system including at least one regulating jack mounted for pivotal movement about a fixed point and connected to an articulated member moveable along a predetermined path, said pivotable regulating jack remaining inclined with respect to said path during its pivotal movement in which the regulating system supplies the chamber means through an auxiliary system, said auxiliary system having at least one jack connected to the chamber means through a duct containing the compressed working fluid, said jack of said auxiliary system being connected to said pivotable regulating jack via said articulated member and providing a relative positional arrangement of said pivotable regulating jack and said jack of said auxiliary system with respect to said predetermined path such that the ratio cos Alpha /cos Beta of the values of the cosines of the acute angles Alpha and Beta of said pivotable regulating jack and said jack of said auxiliary system, respectively, with respect to said predetermined path varies in a direction inverse to the pressure of the gas in the accumulator when said articulated member is displaced along said predetermined path.

Claim 11

A device for compressing an hydraulic working fluid under a determined pressure in a chamber means having a variable volume, comprising at least one accumulator containing a gas under pressure and connected to a regulating system including at least one regulating jack mounted for pivotal movement about a fixed point and connected to an articulated member moveable along a predetermined path, said pivotable regulating jack remaining inclined with respect to said path during its pivotal movement in which the regulating system supplies the chamber means through an auxiliary system, said auxiliary system having at least one jack connected to the chamber means through a duct containing the compressed working fluid, said jack of said auxiliary system being connected to said pivotable regulating jack via said articulated member and providing a relative positional arrangement of said pivotable regulating jack and said jack of said auxiliary system with respect to said predetermined path such that the ratio cos Alpha /cos Beta of the values of the cosines of the acute angles Alpha and Beta of said pivotable regulating jack and said jack of said auxiliary system, respectively, with respect to said predetermined path varies in a direction inverse to the pressure of the gas in the accumulator when said articulated member is displaced along said predetermined path.