Phillips Engineering Co.

Allied Chemical Corporation

Allied Corporation

Martin Marietta Energy Systems, Inc.

Benjamin A Phillips

Thomas S Zawacki

Michael N Harvey

Robert C DeVault

Joseph Marsala

Gordon P McFaul

John Roeder, Jr

Benjamin W McConnell

Eugene P Whitlow

A pump includes a housing defining a cavity, at least one bore, a bore inlet, and a bore outlet. The bore extends from the cavity to the outlet and the inlet communicates with the bore at a position between the cavity and the outlet. A crankshaft is mounted in supports and has an eccentric portion disposed in the cavity. The eccentric portion is coupled to a piston so that rotation of the crankshaft reciprocates the piston in the bore between a discharge position an intake position. The bore may be offset from an axis of rotation to reduce bending of the piston during crankshaft rotation. During assembly of the pump, separate parts of the housing can be connected together to facilitate installation of internal pumping components. Also disclosed is a method of reducing vapor lock by mixing vapor and liquid portions of a substance and introducing the mixture into a piston bore.

Piston pump and method of reducing vapor lock

A method of inhibiting corrosion and the formation of hydrogen and thus improving absorption in an ammonia/water absorption refrigeration, air conditioning or heat pump system by maintaining the hydroxyl ion concentration of the aqueous ammonia working fluid within a selected range under anaerobic conditions at temperatures up to 425.degree. F. This hydroxyl ion concentration is maintained by introducing to the aqueous ammonia working fluid an inhibitor in an amount effective to produce a hydroxyl ion concentration corresponding to a normality of the inhibitor relative to the water content ranging from about 0.015 N to about 0.2 N at 25.degree. C. Also, working fluids for inhibiting the corrosion of carbon steel and resulting hydrogen formation and improving absorption in an ammonia/water absorption system under anaerobic conditions at up to 425.degree. F. The working fluids may be aqueous solutions of ammonia and a strong base or aqueous solutions of ammonia, a strong base, and a specified buffer.

Corrosion inhibitor for aqueous ammonia absorption system

Numerous embodiments and related methods for generator-absorber heat exchange (GAX) are disclosed, particularly for absorption heat pump systems. Such embodiments and related methods use, as the heat transfer medium, the working fluid of the absorption system taken from the generator at a location where the working fluid has a rich liquor concentration.

Generator-absorber-heat exchange heat transfer apparatus and method and

Numerous embodiments and related methods for generator-absorber heat exchange (GAX) are disclosed, particularly for absorption heat pump systems. Such embodiments and related methods use the working solution of the absorption system for the heat transfer medium. A combination of weak and rich liquor working solution is used as the heat transfer medium.

Numerous embodiments and related methods for generator-absorber heat exchange (GAX) are disclosed, particularly for absorption heat pump systems. Such embodiments and related methods use the working solution of the absorption system for the heat transfer medium where the working solution has an intermediate liquor concentration.

Generator-Absorber heat exchange transfer apparatus and method using an

A pump includes a housing defining a cavity, an axial bore coaxially communicating with the cavity, at least one radial bore radially extending between the cavity and an outlet, and an inlet communicating with the radial bore intermediate to the cavity and the outlet. A crankshaft having a longitudinal axis is disposed in the axial bore for rotation about the axis and includes an eccentric portion disposed in the cavity. A piston having a base is disposed in the cavity, and has a head disposed in the radial bore for slidable reciprocation between a discharge position proximate the outlet and an intake position at the inlet between the cavity and the outlet. A cage structure including a cage and a slider block connects the piston base to the eccentric portion of the crankshaft for transforming rotation of the eccentric portion in the cavity to reciprocation of the piston in the radial bore. A valve structure opens and closes the outlet in response to movement of the piston head between the discharge position to the intake position.

Fluid pump having magnetic drive

A hermetically sealed superconducting magnet motor includes a rotor separated from a stator by either a radial gap, an axial gap, or a combined axial and radial gap. Dual conically shaped stators are used in one embodiment to levitate a disc-shaped rotor made of superconducting material within a conduit for moving cryogenic fluid. As the rotor is caused to rotate when the field stator is energized, the fluid is pumped through the conduit.

Hermetically sealed superconducting magnet motor

Numerous embodiments and related methods for generator-absorber heat exchange (GAX) are disclosed, particularly for absorption heat pump systems. Such embodiments and related methods use the working solution of the absorption system for the heat transfer medium.

A high-efficiency, enhanced, generator-absorber heat exchange (EnGAX) cycle, particularly useful in gas-fired, air-cooled absorption heat pumps, increases the heat output of the absorber in the temperature overlap range with the generator to equal the heat usable by the generator. This is accomplished by establishing a solution pathway from a portion of the absorber in the temperature overlap region to a portion of the generator in order to increase solution flow in the high temperature regions of the absorber and generator. Further improvements in cycle efficiency are obtainable by increasing the operating pressure of the absorber.

High efficiency absorption cycle of the gax type

An absorption refrigeration system in which the liquid flow control element is a variably-sized restriction which increases in size to increase the flow of absorbent from the generator to the absorber in response to decreases in the low-side pressure of the absorber and evaporator, and which decreases in size to decrease the flow of absorbent in response to increases in low-side pressure.

Absorption heating system with improved liquid flow control

An electrical control system for an absorption heat pump capable of conditioning a space by cooling or heating including:

Absorption heat pump control system

Evaporation device with an expansion component which may be a capillary or series of orifices of increasing cross-sectional area, an insulated housing, a coil within the housing for conducting a material to be cooled by the evaporation of liquid refrigerant, a separation component for receiving refrigerant from the expansion component and separating liquid refrigerant from gaseous refrigerant and directing liquid refrigerant over the coil, an outlet for receiving gaseous refrigerant from the separation component and from over the coil, and a storage element within the housing beneath the coil for collecting liquid refrigerant not evaporated by passage over the coil. Preferred evaporation devices also include a precooler and a liquid refrigerant outlet which permits controlled liquid refrigerant outflow.

Evaporation device and method with controlled refrigerant expansion and

A generator unit of an absorption heat pump system having a plurality of vertical tubular conduits around the reservoir zone in the lower portion of the generator unit, each conduit having a lower opening for drawing rich liquor from the reservoir portion. Heat is transferred from an external source into the vertical conduits. A method of separating rich liquor into refrigerant vapor and weak liquor including drawing rich liquor into vertical tubular conduits at a temperature at which bubbles of refrigerant vapor are forming in the rich liquor, heating the rich liquor in the vertical conduits thereby increasing the formation of refrigerant bubbles, driving the rich liquor upward in the vertical conduits with increasing speed by the vapor lift action of refrigerant bubbles and separating the fluid coming out of the vertical conduits into the refrigerant vapor and weak liquor.

Method and generator unit of an absorption heat pump system for

An absorber unit for an absorption heat pump including a housing defining an interior absorption space and having first and second ends, a first inlet adjacent to the first end, a second inlet and an outlet adjacent to the second end, a plurality of heat exchange elements forming a plurality of pathway portions in heat exchange relation with the interior absorption space and within the absorber housing, with some of the plurality of pathway portions being joinable into a first pathway for conducting a coolant and the remainder of the plurality of pathway portions being joinable into a second pathway for conducting rich liquor; the second pathway communicating with the outlet and the central absorption space being divided by the pathway portions into a plurality of absorption zones having a large surface area for efficient absorption and heat exchange.

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Benton Harbor, MI, United States of America

Benjamin A Phillips