Abstract: A rotating heat exchanger (10) has a first air turbine (16) connected to a first end of an axle (20). The second end of the axle (20) is connected to a second air turbine (18). A heat pipe (30, 40, 42, 44) extends from the first air turbine (16) to the second air turbine (18).

Abstract: The variable speed drive mechanism includes an input member (17) and an output member (18), each rotatable within a housing (11) filled with fluid. The input and output members each have helical vanes (26) that are in a close running fit with sleeves (21, 22) within the housing. The amount of axial overlap of the sleeves with the helical vanes of either the input member or the output member is adjustable. Rotation of the input member causes the helical vanes of the input member to pump the fluid towards the helical valves of the output member, causing the output member to rotate. The ratio of the speed of the output member with respect to the input member is varied, by varying the axial length of overlap.

Abstract: A thread groove type vacuum pump in which the gap between a rotor and a stator is not subjected to any influence of the rotor temperature and thus the pumping performance does not deteriorate during plasma combustion in a nuclear fusion reactor. The thread groove pumping portion is formed as a circular cone so that the expansion and contraction of the rotor occurs along the generatrix of the circular cone. The pump exhibits supreme pumping performance throughout the whole running mode of the vacuum pumping system of the nuclear fusion reactor because the gap between the rotor and the stator is kept constant despite changes of thermal expansion due to the temperature change of the rotor caused by the different gas loads.

Abstract: A rotary viscosity pump is provided that has a housing and an impeller. The housing has a conical chamber with an outlet at a narrow end of the chamber. The impeller has a conical section with a logarithmic spiral groove along its exterior. The spacing between the housing and the impeller can have either a constant gap or a gap that decreases along the length of the impeller. The depth of the groove can be constant, increase, or decrease in depth along the length of the impeller.

Abstract: This new invention, the water column floating pump, is a fluid pump which uses a rotationally symmetric container to pump fluid from an inlet reservoir to the outlet end of the rotationally symmetric container. The rotationally symmetric container is adapted to float with its axis of rotation vertical in a pump flotation chamber. The rotationally symmetric container floats and rotates in the fluid being pumped and uses the buoyancy of the fluid to carry its weight. A plurality of helically spiralling conduits proximate the periphery of the symmetric container forms a system of vacuum suction tubes designed to suck water from the inlet reservoir, proximate the bottom of the fluid pump, to the outlet end proximate the top of the container. The rotationally symmetric container operates at low rotational speed and requires a small horsepower motor to overcome water friction and water pressure.

Abstract: The invention is directed to a pump for pumping a viscous fluid. The pump includes a stator body and a rotor body rotatably mounted in the stator body so as to be coaxial therewith. The stator body has a wall structure having a spiral slot formed therein which communicates with a suction connection formed in the stator body for conducting the viscous fluid to be pumped into the slot. A pressure connection is formed in the stator body for conducting the viscous fluid out of the slot. The suction connection and the pressure connection open into respective peripheral annular slots which are formed between a total of at least three sealing rings on the outer surface of the stator body. The channels for liquids provided in a housing can be disposed in any rotational position relative to the stator. This affords the advantage that the pump stator can be seated with any rotational position in a receiving cylinder of the housing.

Abstract: An apparatus for continuously aseptically processing a food product comprising delicate food chunks of fruit, vegetables or the like immersed in a liquid. The apparatus comprises a heating enclosure into which the food product and a nonsterile gas are introduced into the food product heated to a sterilization temperature, and a holding enclosure which may be integral with or separate from the heating enclosure for holding the food product and a sterile gas introduced therein at the steriIization temperature for a predetermined time. The apparatus further preferably comprises a cooling enclosure for cooling the food product. In a preferred embodiment, a first separator is interposed between the heating and holding enclosures for separating a nonsterile gas from the food product. The food product and an added sterile gas are fed into a rotatable helical feed pump in the holding enclosure.

Abstract: A screw pump for feeding highly viscous material such as mixed concrete and the like. Plural projections engage the helical screw of the screw pumps to facilitating removal of the material such as gravel caught in the screw pump. Further for preventing excessive force from being exerted on the screw because of material caught in the screw pump, a spring is interposed between partitioning plates and hydraulic cylinders or crank mechanisms. Further, to make the position of the holder for the partitioning plate stable, plural rollers are provided above the holders.

Abstract: A high-vacuum pump includes a plurality of pump stages, each of which has a rotor and a stator. In one of the pump stages, either the rotor or the stator is provided with a structure that effects the gas conveying includes radially extending webs whose pitch and width decrease from the suction side of the pump stage to the thrust side of the pump stage.

Abstract: A machine for making ice cream and the like, having a receptacle for receiving liquid ingredients to be used for making the ice cream. A mixing chamber is provided which has an egress from which the ice cream exits. A cooling chamber surrounds the mixing chamber. A rotor centrally mounted in the mixing chamber atomizes and mixes the liquid ingredients and moves it through the mixing chamber to its egress. The rotor has a central post and outwardly projecting blades. A conduit feeds the liquid ingredients from the receptacle to the central post of the rotor. An outlet port on the central post is provided, through which the liquid ingredients are ejected outwardly from the central post for action by the blade means. A pull down screw arrangement helps pull down the liquid ingredients from the receptacle to the mixing chamber.

Abstract: A method and apparatus are disclosed for continuously and gently aseptically processing a food product comprising delicate food chunks of fruit, vegetables or the like immersed in a liquid. The apparatus comprises a heating enclosure into which the food product and a nonsterile gas are introduced and the food product heated to a sterilization temperature, and a holding enclosure which may be integral with or separate from the heating enclosure for holding the food product and a sterile gas introduced therein at the sterilization temperature for a predetermined time. The apparatus further preferably comprises a cooling enclosure for cooling the food product.

Abstract: A compressor pump for conveying fluids is provided and consists of an electric motor driving a cone-shaped impeller within a stationary casing affixed to a stationary stand in which fluids entering the casing and through the impeller are compressed to exit therefrom into a hose affixed to the stand for carrying the compressed fluids.

Abstract: A centrifugal compressor having a rotor driven by a motor for rotation about a shaft which is provided at its one end with an inlet opening of the gas to be compressed and on its opposite end with an outlet opening. The rotor has radial centrifugal compression passages connected to the inlet opening, annular circumferential diffusers connected to the outer ends of the compression passages, and centripetal passages extending from the diffusers. Devices for preventing the gas from rotating in the circumferential diffusers are also provided.

Abstract: The invention relates to a high-vacuum molecular pump of the kind comprising at least two coaxial elements (1 and 2) mounted rotatably with respect to each other and at a small distance from each other, wherein a side of one of the elements (1) positioned opposite a side of another element (2) is provided with at least one helical groove (5), and wherein a pump space (6) is present between these two sides of the elements, which pump space (6) is in communication with a gas supply (7) and a gas discharge (10, 8). Between the gas supply (7) and the pump space (6) a substantially annular gas supply chamber (9) is present, which is bounded by the elements (1 and 2) and which is relatively wide near the gas supply (7) but narrows downstream towards the pumpspace (6). The helical groove (5) extends into the annular gas supply chamber (9).

Abstract: A centrifugal liquid-gas separator apparatus which is particularly adapted for use downhole with a submergible pump comprises an elongated hub having disposed on its periphery helical blades defining a screw-type inducer for pressurizing a liquid-gas fluid mixture entering the apparatus, axially extending vanes defining a centrifugal separator for separating the liquid and gas components of the fluid mixture, and smoothly curved blade segments disposed intermediate the blades and the vanes for providing a smooth transition for the fluid mixture flowing from the inducer to the centrifugal separator. The apparatus is capable of maintaining a substantially constant flow rate over a large range of volumetric ratios of gas to liquid.

Abstract: A refrigerant compressor for use in refrigerators, air conditioners, heat pumps or the like apparatus. The refrigerant pump has a casing which encases a combination of a compressor and an electric motor. A spring guide has an attaching base portion fixed to a bearing supporting a crank shaft driven by the motor, and an oil pipe connected to the attaching base such that the inside of the oil pipe opens to one end of the crank shaft. The oil pipe is bent so that the free end thereof is immersed in the lubricating oil in the case. The oil pipe receives a closely-coiled spring which is fixed at its one end to the end of the crank shaft while the other end is immersed in the lubricating oil. As the compressor operates, the coiled spring rotates in the oil pipe so that the lubricating oil is sucked by the lead of the coiled spring through the gap formed between the inner peripheral surface of the oil pipe and the coiled spring.

Abstract: A refrigerant compressor suitable for use in refrigerators, air conditioners, heat pumps or the like apparatus. The refrigerant compressor has a closed casing which encases a driving electric motor section and a compressor section constructed as a unit. The compressor section has a substantially horizontal crank shaft consisting of a main shaft portion fixed to one end of the rotor of the driving motor, an eccentric portion rotatably carrying a rotary piston and an end journal portion. The lubrication system of this compressor has a passage means for introducing a lubricating oil to various parts requiring lubrication, and a lubricator adapted to supply the lubrication oil to the passage means. The passage means includes a peripheral oil groove formed in the portion having crank shaft of the minimum eccentricity and connected at its one end to a peripheral oil groove formed in the main shaft portion and at its other end to a peripheral oil groove in the journal portion of the crank shaft.

Abstract: An improved form of archimedean screw pump is disclosed comprising a pump cylinder having an internal helicoidal vane portion affixed to the said pump cylinder by its circumferential helical edge and a partial core portion affixed to and extending from the said vane portion, the length of a section of said partial core portion on a plane through the axis of the pump cylinder, being greater than or equal to the longitudinal distance, in the said plane, between adjacent longitudinally spaced vane portions. The provision of a ribbon core substantially avoids the "choking" problems of known pumps of this type and the particular form of ribbon core enables the throughput of the pump further to be improved.

Abstract: A hydraulic screw pump is provided having a rotatable screw which may comprise a helical blade disposed within an enclosed full or open half cylinder. In half-cylindrical constructions the helical blade rotates relative to a half cylinder which may be formed of concrete. The enclosed screw pumps may have the helical blades welded to the inner periphery of a surrounding metal cylinder so as to rotate therewith, or be welded to said surrounding metal cylinder and also to an inner cylinder which provides axial reinforcement.In all of the foregoing pump embodiments the improvement of this invention may be utilized to provide increased pump capacity by the novel expedient of flaring the pump discharge end so as to increase the critical depth and critical flow area in said discharge end thus increasing the possible maximum rate of liquid discharge.

Abstract: A fish pump is described for pumping live fish in water from one location to another. The pump is designed specifically for pumping live fish without injuring the fish. Of special significance is the pump rotor. It includes symmetrical helical-spiral passages that lead from a single open axial intake to peripheral open outlets at an enlarged rotor discharge end. The passages are open only at the intake and outlets and are smoothly curved to prevent damage to the fish. The passages and all other areas through which the fish pass are of cross-sectional dimension that is at least equal to one half the length of the longest fish to be pumped. Furthermore, the pitch of the helical-spiral passageways varies from the rotor opening to the outlet to influence the pumping efficiency without endangering the fish. The rotor, when in operation, produces a vortex at its intake end that tends to align the fish with the axis of rotation of the pump rotor.

Abstract: An archimedean screw pump is described comprising a cylindrical wall having at least one internal helicoidal vane fixed within it. The pump is built up from a plurality of like modules having helical and helicoidal portions which when assembled form the wall, the vanes, and other pump surfaces such as a ribbon core.

Abstract: A bearing structure for supporting at least one end of the cylindrical housing of a cylindrical lift pump for handling large volumes of fluid, particularly sewage, and, in particular, to bearings for carrying the load of the pump which bearings include at least two supports for engaging a wear ring or track carried by the cylinder with each support disposed on opposite sides of a vertical axis bisecting the cylindrical housing and having at least two coplanar rollers carried by a first base member which is in turn pivotally carried by a second fixedly positioned base member for tri-axial motion relative thereto.

Abstract: The present invention is directed to a centrifugal pump of the type including an essentially conical rotor having a helical vane increasing in diameter from its entrance end to its discharge end; the peripheral edge of the vane confronting the wall of the pump housing and forming with the pump housing a discharge or pressure chamber and an intake or suction chamber, the peripheral edge of the vane diverging from the wall of the pump housing from the discharge chamber toward the intake chamber, and having minimal clearance with respect to the wall of the discharge chamber side of the vane.