Abstract: A check valve includes a housing, a hinge pin connected to the housing, and a flap with a cam surface having stability points, the flap rotatably connected to the hinge pin. The check valve further includes a stop pin connected to the housing, a spring mounted on the stop pin, the spring having an arm, and a detent element mounted on the arm of the spring. The spring urges the detent element to be in contact with the cam surface and the flap is stable when the detent element is located at one of the plurality of stability points.

Abstract: A check valve with a housing and a first flapper rotatable about an axis between open and closed positions includes a first spring mechanism operatively positioned between a static component and the first flapper. When the first flapper is in the closed position there is a distance between the first spring mechanism and either the static component or the first flapper.

Abstract: A check valve includes a base, two sidewalls extending from the base and a pin coupled between the two sidewalls. The valve also includes a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a plate and a backbone that is thicker than the base and the extends along an entire length of the plate.

Abstract: The lifting assembly includes a cable end housing defining an inner cavity. The lifting assembly also includes a retainer ring disposed in the inner cavity at an end thereof. The lifting assembly further includes a cable retainer disposed in the inner cavity of the cable end housing and operative to retain a cable end fitting of a cable, the cable retainer extending from a first end to a second end and defining a helical slot extending from the first end to the second end to provide installation and removal access of the cable end fitting.

Abstract: A lifting assembly is provided. The lifting assembly includes a cable end housing defining an inner cavity. The lifting assembly also includes a retainer ring disposed in the inner cavity at an end thereof. The lifting assembly further includes a cable retainer disposed in the inner cavity of the cable end housing and operative to retain a cable end fitting of a cable, the cable retainer extending from a first end to a second end and defining a slot extending from the first end to the second end to provide installation and removal access of the cable end fitting, the slot having a first slot portion and a second slot portion that are angularly oriented relative to each other.

Abstract: A vapor cycle heat exchanger has a plurality of heat exchanger lines and a distributor. The distributor comprises a distributor housing, a swirl vane, an atomizing nozzle, a plurality of nozzles, and a fluid line intersection. The distributor housing defines a main distributor line configured to receive a non-homogenous flow of the two-phase refrigerant fluid. The swirl vane is disposed within the main distributor line and configured to distribute the non-homogeneous flow into a symmetric fluid distribution. The atomizing nozzle is disposed downstream of the swirl vane. The routing lines each lead to one of the plurality of heat exchanger lines. The main distributor line branches into the routing lines at the fluid line intersection, which is situated downstream of the nozzle.

Abstract: A lifting assembly is provided. The lifting assembly includes a cable end housing defining an inner cavity. The lifting assembly also includes a retainer ring disposed in the inner cavity at an end thereof. The lifting assembly further includes a cable retainer disposed in the inner cavity of the cable end housing and operative to retain a cable end fitting of a cable, the cable retainer extending from a first end to a second end and defining a slot extending from the first end to the second end to provide installation and removal access of the cable end fitting, the slot having a first slot portion and a second slot portion that are angularly oriented relative to each other.

Abstract: The lifting assembly includes a cable end housing defining an inner cavity. The lifting assembly also includes a retainer ring disposed in the inner cavity at an end thereof. The lifting assembly further includes a cable retainer disposed in the inner cavity of the cable end housing and operative to retain a cable end fitting of a cable, the cable retainer extending from a first end to a second end and defining a helical slot extending from the first end to the second end to provide installation and removal access of the cable end fitting.

Abstract: An evaporator heat exchanger is disclosed. The evaporator heat exchanger includes a bottom plate, a top plate, and at least one main plate between the bottom plate and the top plate. The at least one main plate includes a first face having one or more channels for flow of a first fluid along the first face and a second face opposite the first face having one or more channels for flow of a second fluid along the second face, wherein heat is exchanged between the first fluid and the second fluid through the main plate. Main plates adjacent to each other define an enclosed channel for fluid flow.

Abstract: A check valve includes a housing, a hinge pin connected to the housing, and a flap with a cam surface having stability points, the flap rotatably connected to the hinge pin. The check valve further includes a stop pin connected to the housing, a spring mounted on the stop pin, the spring having an arm, and a detent element mounted on the arm of the spring. The spring urges the detent element to be in contact with the cam surface and the flap is stable when the detent element is located at one of the plurality of stability points.

Abstract: A valve includes a housing with a flow passage and a hole extending into the housing; a post with a base and a hole extending into the base, the post connected to the housing; and a dowel pin which sits in the hole of the housing and extends into the hole in the post.

Abstract: A check valve includes a base, two sidewalls extending from the base and a pin coupled between the two sidewalls. The valve also includes a flapper pivotably coupled to the pin to occupy respective open and closed positions in accordance with a pressure differential of a fluid flow across the check valve, the flapper including a plate and a backbone that is thicker than the base and the extends along an entire length of the plate.

Abstract: A check valve with a housing and a first flapper rotatable about an axis between open and closed positions includes a first spring mechanism operatively positioned between a static component and the first flapper. When the first flapper is in the closed position there is a distance between the first spring mechanism and either the static component or the first flapper.

Abstract: A valve includes a housing with a flow passage and a hole extending into the housing; a post with a base and a hole extending into the base, the post connected to the housing; and a dowel pin which sits in the hole of the housing and extends into the hole in the post.

Abstract: An evaporator heat exchanger is disclosed. The evaporator heat exchanger includes a bottom plate, a top plate, and at least one main plate between the bottom plate and the top plate. The at least one main plate includes a first face having one or more channels for flow of a first fluid along the first face and a second face opposite the first face having one or more channels for flow of a second fluid along the second face, wherein heat is exchanged between the first fluid and the second fluid through the main plate. Main plates adjacent to each other define an enclosed channel for fluid flow.

Abstract: A plate heat exchanger includes a plurality of main plates having ridges and troughs to direct first and second flows of fluids across the main plates to exchange heat between the fluids while maintaining the first and second flows of fluids separate from each other. The heat exchanger also includes a first end plate including first and second inlets and first and second outlets. The first end plate includes a substantially flat inside surface configured to contact the ridges of a first main plate among the plurality of main plates and at least one slot formed in the substantially flat surface to provide a fluid communication of the first fluid flow between the inlet and a cavity formed by the first end plate and the first main plate.

Abstract: A plate heat exchanger includes a plurality of main plates having ridges and troughs to direct first and second flows of fluids across the main plates to exchange heat between the fluids while maintaining the first and second flows of fluids separate from each other. The heat exchanger also includes a first end plate including first and second inlets and first and second outlets. The first end plate includes a substantially flat inside surface configured to contact the ridges of a first main plate among the plurality of main plates and at least one slot formed in the substantially flat surface to provide a fluid communication of the first fluid flow between the inlet and a cavity formed by the first end plate and the first main plate.

Abstract: A plate heat exchanger includes a stack of main plates having ridges and troughs to direct first and second flows of fluids through cavities between the main plates to exchange heat between the fluids while maintaining the first and second flows of fluids separate from each other. The plate heat exchanger includes a first end plate stacked at one end of the stack of main plates and a second end plate stacked at an opposite end of the main plates. Tension ties mechanically connect to each of the first and second end plates through the stack of main plates.

Abstract: In a disclosed embodiment, a chemical process has a pair of beds, with each of said beds having at least one connection to receive a source of gas, and for delivering gas downstream. Each of the beds includes chemical treatment elements. The system includes a connection to a source of a gas to be treated, and a connection for receiving treated gas to be delivered to a downstream use, a connection to a source of a cleaning gas, and a connection to deliver the cleaning gas downstream. A rotary valve includes a rotary actuator for rotating a valve to selectively switch each of the beds between the several connections.

Abstract: A rotary cylinder valve comprises a valve body, a valve cylinder rotationally mounted within the valve body, and first, second, third and fourth valve seats coupled to the valve body. The valve cylinder has a first position in which dual independent flow paths connect the first valve seat with the second valve seat, and connect the third valve seat with the fourth valve seat. The valve cylinder is rotatable to a second position in which the dual independent flow paths connect the first valve seat with the fourth valve seat, and connect the third valve seat with the second valve seat. The valve seats form seals against the valve cylinder, such that no flow path connects the first valve seat with the third valve seat.