Abstract: A brake distributor valve for a Russian railway vehicle includes a body defining a brake pipe passageway configured to be in fluid communication with a brake pipe, a reservoir passageway configured to be in fluid communication with a reservoir, and a reference pressure passageway configured to be in fluid communication with a reference pressure source. The brake distributor valve includes a service accelerated release valve having a valve member with a first position where the brake pipe passageway is isolated from the reservoir passageway and a second position where the brake pipe passageway is in fluid communication with the reservoir passageway. The valve member is configured to supply pressure from the reservoir passageway to the brake pipe passageway during a brake release event, where the valve member is actuated between the first and second positions based on a pressure within the reference pressure passageway.

Abstract: A brake distributor valve for a Russian railway vehicle includes a body defining a brake pipe passageway configured to be in fluid communication with a brake pipe, a reservoir passageway configured to be in fluid communication with a reservoir, and a reference pressure passageway configured to be in fluid communication with a reference pressure source. The brake distributor valve includes a service accelerated release valve having a valve member with a first position where the brake pipe passageway is isolated from the reservoir passageway and a second position where the brake pipe passageway is in fluid communication with the reservoir passageway. The valve member is configured to supply pressure from the reservoir passageway to the brake pipe passageway during a brake release event, where the valve member is actuated between the first and second positions based on a pressure within the reference pressure passageway.

Abstract: Various embodiments of an underwater power generation apparatus are provided. In one embodiment, an underwater power generation apparatus is provided, comprising: a conduit having a bore defined by an interior surface of the conduit, the bore comprising a void extending about a length of the conduit; an exterior cylinder, the conduit oriented within the exterior cylinder, and the conduit rotatable relative to the exterior cylinder; at least three bearings oriented between the conduit and the exterior cylinder; at least one blade having a first blade direction, the at least one blade having a first blade direction oriented on the interior surface of the conduit at a first end of the conduit; and at least one blade having a second blade direction, the at least one blade having a second blade direction oriented on the interior surface of the conduit at a second end of the conduit.

Abstract: Various embodiments of an underwater power generation apparatus are provided. In one embodiment, an underwater power generation apparatus is provided, the apparatus comprising: a conduit having a bore defined by an interior surface of the conduit, the bore comprising a void extending about a length of the conduit; an exterior cylinder, wherein the conduit is oriented within the exterior cylinder, and wherein the conduit is rotatable relative to the exterior cylinder; at least three bearings oriented between the conduit and the exterior cylinder; at least one blade having a first blade direction, the at least one blade having a first blade direction oriented on the interior surface of the conduit at a first end of the conduit; and at least one blade having a second blade direction, the at least one blade having a second blade direction oriented on the interior surface of the conduit at a second end of the conduit.

Abstract: Catheters, aspirators, and atherectomy tools using vortices are provided.