69results about How to "Eliminate differential pressure" patented technology

A sewage treatment system for a breeding system able to guide sewage out of the breeding system to be purified and fed back to breeding ponds for reusing, it can be applied for one breeding pond or applied simultaneously for multiple breeding ponds, and it comprises: a purifying tank, at least a dirt discharging tube to lead sewage in the breeding ponds into a purifying tank; and at least a water take-in tube for feeding purified sewage from the purifying tank back to the breeding ponds. Wherein each dirt discharging tube has a dirt collecting portion; by multiple deposition and purification treatments on the sewage in the breeding ponds with the dirt discharging tubes and the purifying tank, the quality of water in the breeding system can be elevated, and environment pollution during breeding can be effectively reduced.

This invention relates to a heating/cooling system operating on the basis of a novel SPLIT BUFFER TANK; representing an efficiency improvement alternative to HVAC systems functioning with existing commercial buffer tanks. Currently, commercial buffers have the heat source provider (HSP)-return and system-return discharging to a common buffer/vessel. Novel SPLIT BUFFER is provided with a SEPARATION DISK placed inside the tank as mechanical way of separating the hot water inflow from the HSP from the warmer water inflow from system return. The disk moves up and down along the tank driven by demanded water supply and return. Pump-1 circulates hot water from the hot section of the buffer to the secondary system claiming for heat. Pump-2 circulates warmer water from the warmer section of the buffer through the HSP where it is reheated, and subsequently stored in the hot section of the buffer to reinitiate this cycle again.

A method of decreasing resonant frequency shifting of an electrical circuit mounted on a vehicle key includes providing a frame in an opening in the head portion of a vehicle key and locating the transponder in the frame. The frame comprises substantially rigid non-metallic material, and the frame includes a support structure for supporting the transponder while decreasing forces produced on the transponder by thermal expansion and contraction of the head portion of the key, thereby decreasing shift in the resonance of the electrical circuit of the transponder. The frame, the transponder and the head portion of the key are overmolded providing an outer covering that encloses and protects the transponder.

A check valve for pick-and-place applications includes a valve housing with a chamber, and a chamber shuttle with a cavity. The chamber shuttle is accessible from outside the chamber and adapted to receive a suction head. The chamber shuttle is adapted to travel within the chamber and establish “valve-open” and “valve-closed” states based upon the contact of the suction head upon the work piece surface. Blow off of the work piece surface is allowed by a fluid flow channel interposed between the suction head and the chamber shuttle cavity.

The invention discloses a surrounding and protecting structure with the outer surface provided with a resistance reducing device. The resistance reducing device comprises annular grooves which are formed in the outer surface of the surrounding and protecting structure in a surrounding manner in the circumferential direction. The sections of the annular groove are arc. A ridge-shaped annular rib isformed between the vertically-adjacent annular grooves. The annular rib comprises a rigid ridge back and an elastic cavity or solid elastic cavity or flexible cavity or solid flexible body below theridge back. The resistance reducing device comprises the annular rib. The resistance reducing device is arranged in at least part of the height range of the surrounding and protecting structure. An arc groove wall is used for conducting disordering guiding in the momentum direction of flow coming from the upward direction, and the resistance and amplitude in the following wind direction are reduced. The ridge back can be used for cutting the incoming flow sharply and dividing the incoming flow into the upper groove and the lower groove, generation of the bursting process of the turbulence boundary layer is inhibited, and resistance is reduced. The cavity below the ridge back is an elastic or flexible cavity or a solid elastic or flexible body, the cavity can deform under the effect of theincoming flow, energy of the incoming flow can be transferred and consumed towards the two sides, the pressure difference between the windward side and the lee side can be eliminated or reduced, and following wind direction resistance is reduced.

Designs and techniques for fluid thrusters and vehicles that are powered by propelling fluids with fluid thrusters. Multiplex-thruster (MT) systems are disclosed that include a single thruster and a flow multiplexer with multiple channels to deliver thrusting flow in various directions.