Abstract: A heat exchanger comprising an elongated tubular cylindrical member having fluid ingress and egress openings adjacent to its opposite ends and external flanges at opposite ends one of which flanges has a counterbore facing in the direction away from the cylindrical member. A plurality of graphite tubes within the cylindrical member having their opposite ends connected to graphite headers one of which is connected through a graphite end member to one end of the cylindrical member and the other of which has an outside diameter slightly less than the inside diameter of the cylindrical member and within which it is slidable or floats. The floating header has an external circumferential groove with outwardly inclined ends. A seal is provided at the end of the cylindrical member at which the floating header is located which seal includes packing in the counterbore in the adjacent flange and a gland member slidable on the floating header and adjustable towards the flange.

Abstract: The specification discloses a rotary machine, providing internal compression or expansion, connectable to a driving or driven shaft and comprising a cylinder rotatable about its axis, a piston within the cylinder rotatable, synchronously with the cylinder, about an axis parallel to but offset from the axis of rotation of the cylinder, cylinder end boundaries contiguous with either the cylinder or the piston, and a series of flexible vanes each of which is insealable rubbing contact with the end boundaries and is sealably connected to the circumferential surfaces of the cylinder and piston, whereby rotation of the cylinder or piston is transmitted by the pull of the vanes to the piston or cylinder, the volume between each adjacent pair of vanes alternately increasing and decreasing during induction and exhaust of the said volume.

Abstract: A light weight fluid energy converting device utilizing a fluid motor as supporting drive hub for a wheel or other driving attachments; the motor being of the reverse positioned vane type comprising a cylindrical rotor means enclosing a fluid channeled cammed stator actuating means, all supported on a basic stationary spindle by frictionless bearing means; one large end of the spindle being adapted to cycle a powering fluid in and out of the motor with an exterior controlled generating source; the motor housing, power ring, vanes, seal plates and stator body being constructed of light weight strong plastic materials easily adaptable for rapid mass production by known injection molding processes; the use of tubular metal coring assembly inserts embedded in the plastic mass serving as fluid flow channels and as stress relief reinforcing elements.

Abstract: A gear pump or motor comprises a tubular casing having an internal shoulder and an inlet and outlet for working fluid. A pair of meshing gearwheels are each mounted in the casing between a pair of rigid bearings which are disposed one on either side of the shoulder adjacent respective end plates closing the ends of the casing. Screws passing through the shoulder are provided for clamping the shoulder between the bearings and end plates. In an unclamped condition of the shoulder, the difference between the axial lengths of the shoulder and the gearwheels is greater than a predetermined operating clearance between the gearwheels and the bearings. In a clamped condition of the shoulder in the normal operating conditions of the pump or motor, the shoulder is resiliently deformed to reduce the said difference to a value at most equal to the predetermined clearance.

Abstract: The invention relates to an expansible chamber rotary piston engine of the type having meshing internal and external gears wherein one rotatable gear, which may be an internal gear or an external gear, has rotatable and oribtal movement relative to the other gear which is fixed relative to the housing. The engine has relatively rotatable and cooperable valve members connected respectively to the gears. The cooperable surfaces between the valve members may be either flat or cylindrically shaped. The valve members have respective first and second sets of circumferentially arranged ports with each port in one set moving sequentially into alignment with each port in the other set during relative rotation of the valve members. The ports are generally rectangularly shaped to provide maximum flow capacity between the valve members.

Abstract: An improved slant axis rotary mechanism including a housing defining an operating chamber, the operating chamber having an outer spherical wall, an inner spherical wall and opposed, generally radially extending end walls extending between the inner and outer spherical walls. A rotor is located within the chamber and includes a spherical hub carrying seals engaging the inner spherical wall and an annular flange carrying seals engaging both the end and outer spherical walls. A shaft is journalled in the housing and has an angularly offset portion within the chamber which, in turn, journals the rotor and gears carried by the rotor and the housing establish a timed rotary relationship between the shaft and the rotor. At least one elongated slot is provided in one of the walls and opens into the chamber. Means are provided for supplying a lubricant to the slot for lubricating the seal on the rotor engaging the wall having the slot.

Abstract: A rotor is eccentrically mounted in a bore of a housing and formed with radial slots in which vanes are slidably retained. The vanes partition the bore into a plurality of fluid chambers which increase in volume in an inlet portion of the bore and decrease in volume in an outlet portion of the bore upon rotation of the rotor. An inlet opens into the inlet portion of the bore and an outlet leads from the outlet portion of the bore. An oil sump provided at the bottom of the housing is connected to the outlet and pressurized thereby. An end plate of the housing is formed with a semi-annular high pressure oil groove in the outlet portion of the bore and a semi-annular low pressure oil groove in the low pressure portion of the bore which communicate with the slots radially inwardly of the vanes so that oil in the slots urges the vanes into sealing engagement with the wall of the bore.

Abstract: The invention relates to screw pump stators having a rigid tubular body lined on the inside with a resilient sleeve.The sleeve comprises a twisted liner (4) having inner bosses (5) and outer bosses (6) in the zones thereof corresponding to the highest sliding speeds of the rotor, the outside bosses projecting more than the inner bosses, and the inside surface of the rigid body (3) is hollowed out so as to sealingly receive the outer bosses of the liner.

Abstract: An oil seal means in a rotary piston engine including first and second assemblies of oil seal rings, annular spring means and annular elastic seal elements mounted in annular oil seal grooves, arranged concentric and close to each other with an annular land interposed therebetween, said annular land being a flexible annular land movable in any radially directions of the rotor.

Abstract: A machine for generating motion is constructed like an epicyclic gear, with the intermediate gears mounted on a cylindrical core between the inner and outer gears. The intermediate gears are alternately axially offset and the core provides circumferential undulating guides for pistons that slide in the inner and outer gear teeth so that they pass over and under the intermediate gears. The pistons and intermediate gears divide the space between inner and outer gears into separate chambers to which pressure fluid can be selectively admitted to achieve rotation.

Abstract: This invention relates to sleeves for sealed bearings for rotating shafts employing packing glands mounted in the floating sleeve whereby the integrity of the seal is maintained during transverse displacement of the shaft.

Abstract: Self-contained modular joint adapted to interconnect two machine elements to permit a relative rotation of less than one revolution therebetween, wherein the first element comprises a strap consisting of a pair of wing-like extensions encompassing the second element in such a manner that said second element can pivot between said two wing extensions, each wing extension of said strap being provided with a bore concentric to the axis of said relative rotation, said bore being adapted to be engaged by members of revolution each adapted to center and position in the axial direction an inner race of rolling contact bearings capable of absorbing axial and radial efforts, the outer race of each one of said bearings being carried by a member of revolution centered and secured to said second element so as to constitute between said two elements a joint free of both axial and radial play, wherein one of said two members of revolution secured to said second element has fitted thereon the toothed annulus of a reduction

Abstract: An internal-external gear pump wherein the fluid displacement thereof is variable. The internal gear is rotatably driven by a drive shaft about a fixed axis and the external gear is rotatably driven by the internal gear about a controlled movable axis eccentric to the fixed axis. Movement of the external gear axis causes the eccentricity between the internal and external gear axes to vary, thereby resulting in a change in the depth of gear tooth mesh such that the volume of fluid displaced by the meshing teeth is varied. The position of the external gear axis is established by a control ring which rotatably supports the external gear, and is mounted in a stationary housing so as to be rotatably positionable within arcuate limits about a fixed axis eccentric to both the axes of the internal and external gears.

Abstract: Rotor housing for rotary piston engines having a base and a chromium-plated inner wall. The base is made of an iron-based material having a hardness of not less than 105 in Vickers' scale and the chromium-plated layer has a hardness not less than 850 in Vickers' scale. The rotor housing is used with a rotor having apex seals of iron-based material which includes 50 to 75% in volume of carbide at least in a sliding surface which is adapted to be brought into sliding engagement with the inner wall of the rotor housing, said apex seal having a hardness of 700 to 900 in Vickers' scale at the sliding surface.

Abstract: A process and apparatus for the thermal destruction of solid fuel material in a gravity-type multiple hearth furnace having groups of two or more superimposed hearths. Solid fuel is fed to the upper hearth of each group of hearths. Auxiliary fuel is selectively burned in the lower hearth of each group of hearths to maintain the discharge temperature of the exhaust gas flowing from each said upper hearth above the ignition temperature of said gases so that each group of hearths is operated as a combined drying and burning zone. Preheated air for combustion is introduced into the lower hearth of the lowermost group of hearths so that oxygen available for combustion increases as the solid fuel moves downwardly. Ash is removed from the lower hearth of at least the lowermost group of hearths.

Abstract: A pair of cooperating rotors for a screw rotor machine, comprising a main rotor with a dedendum and a gate rotor with an addendum. One flank of each gate rotor land is generated inside the pitch circle of the gate rotor by the crest of the main rotor land and is generated outside the pitch circle by a portion of the main rotor inside the pitch circle and is formed to sealingly cooperate with the main rotor land so that gear action is obtained only outside the pitch circle of the gate rotor and inside the pitch circle of the main rotor.

Abstract: Method and apparatus are disclosed for counterbalancing the high pressure forces normally generated in the high pressure fluid region of a rotary pump or motor and exerted against the rotating structure of the pump or motor. By this method and apparatus a portion of the fluid in the high pressure region of the pump housing is transported to a region of the housing interior adjacent to, but out of communication with the low pressure fluid region. This transported high pressure fluid is directed against the rotating structure in the direction of the high pressure fluid region. Consequently, the rotating structure of the pump or motor is less subject to distortion or displacement due to forces generated by fluid in the housing's high pressure fluid region.

Abstract: A casing arranged to be connected to accelerator structure of a vehicle and movably enclosing a foot engaging member projecting through the top of the casing. An air tight collapsible bag in the casing is disposed under the foot engaging member, and such collapsible member is operable by the vacuum in the engine fuel intake system to automatically back off the throttle under certain engine conditions and to apply more throttle under other conditions for smoothening out the function of the vehicle and for other reasons.

Abstract: A rotary gear pump comprising two excentrically arranged gear wheels of different sizes, of which the greater gear wheel is rotatably mounted in the generally cylindrical housing of the pump and the smaller gear wheel is mounted upon a shaft which is arranged excentrically in the housing of the pump in such a way that the teeth of the two gear wheels, in the working condition of the pump, are mutually engaged along an area of the inner circumference of the housing of the pump between the outlet of the pump and the inlet of the pump, and are arranged with an interspace between the top circles of the teeth along another part of the circumferences of the wheels, a blocking member being arranged in the interspace with one surface of the blocking member sealing against teeth of the smaller gear wheel and with another surface of the blocking member sealing against teeth of the greater gear wheel, wherein the shaft and the blocking member are mounted rotatably in the housing about the axis of the greater gear wheel

Abstract: A progressing cavity, positive displacement rotary pump assembly for fluid or semi-fluid material. The assembly includes a rotary shaft with an associated drive motor and pump components including a tubular stator with an interior helical surface and an orbital rotor within the stator operably connected to the shaft and having an exterior helical surface. The helical rotor surface has one more thread than the helical stator surface which it engages, to define sealed pumping cavities that advance axially as the rotor rotates and orbits within the stator. The rotor is coupled to the shaft by a flexible torque tube with one end connected to the shaft and the other connected to an end of the rotor to transmit driving torque to the rotor and to flex sufficiently to accommodate orbital movement of the rotor.