87results about How to "Reduced volume flow" patented technology

A tube and shell heat exchanger having a transversely oriented inlet port and a spirally coiled heat transfer tube contained within an arcuate chamber created by an internal baffle in which the water to be conditioned travels along a helical pathway in which the flow has minimized water depth and high turbulence. The tube and shell heat exchanger maximizes heat transfer capability in a relatively easy to assemble design to make feasible the use of a higher cost material for the tubing such as titanium in a wide range of applications.

A two-spool turbojet built up of major bladed components first developped for unrelated turbofan engine types. The high pressure (“HP”) spool comes from a turbofan which powered a large airliner carrying 300 or more passengers across a continent or an ocean. The low pressure (“LP”) compressor is the fan from a military aircraft's engine or a smaller airliner turbofan, or both. The object is that all the LP compressor output goes into the HP compressor, making a turbojet from existing turbofan components. This saves development costs, and creates an engine for propelling a large aircraft at supersonic speeds more efficiently than by an afterburning turbofan. In the preferred embodiment, the number of stages in the HP spool is halved, saving weight for the addition of a remote fan (known elsewhere) which doubles the air mass flow. That increases propulsive efficiency during subsonic cruise.

An exhaust gas return system for an internal-combustion machine which comprises a low-pressure supply line extending from an inlet to a compressor. From the compressor a high-pressure supply line extends to the internal-combustion machine. From the internal-combustion machine a high-pressure exhaust gas line extends to a turbine. From the turbine a low-pressure exhaust gas line extends to an outlet. The low-pressure exhaust gas line and the low-pressure supply line have connected therewith a low-pressure return line for returning exhaust gas. The high-pressure exhaust gas line has connected therewith a bypass line for utilizing the heat of the exhaust gas produced in the internal-combustion machine for heating the exhaust gas to be returned of the low-pressure return line before the exhaust gas is supplied to the turbine (24), if desired. Thus the cold start phase of the internal-combustion machine can be reduced.

The invention discloses an optimum scheme of an ultra-supercritical secondary reheating unit, and refers to a secondary reheating unit of a coal-fired power plant after optimization of a back heating system, parameter optimization of main steam, primary reheating steam, and secondary reheating steam, and structural optimization of a turbine body. The optimum scheme of the ultra-supercritical secondary reheating unit can obviously reduce the heat loss of the secondary reheating unit, and significantly decrease greenhouse gas emission and decreases cost of the ultra-supercritical secondary reheating unit obviously. By taking a 1200 MW grade unit as an example, four mono-axial cylinders are used for gas exhausting, the ultra-supercritical secondary reheating unit is composed of a single-flow ultra-high pressure cylinder capable of completely supplying water, back-heating and pumping gas, a dual-flow high and medium pressure cylinder, and two dual-flow middle and low pressure cylinders; there is no middle pressure cylinder and a middle low pressure linking pipe; no gas pumping opening is arranged on the high middle pressure cylinder and the middle low pressure cylinder; the water supply and back heating are provided by a first pump, a new second pump, a new third pump, and a new fourth pump; a ultra-low temperature coal economizer, and a heat primary wind condensing water heater replace a seventh pump, an eighth pump, a ninth pump, and a tenth pump to heat the condensed water; all low-pressure heaters are canceled.

The invention relates to a method and device for reducing the volume or pressure of a fluid which is driven through an opening (3, 17) by moving surfaces. According to said method, the opening (3, 17) is divided in at least two flow channels (5, 6, 14) by means of one or more flexible separation members (4). Each separation member (4) is attached at its rear end relatively to the direction of displacement of said surfaces, and its front finishing end extends inside said opening (3, 17). The inventive method can be advantageously implemented during production and further transformation of strip-shaped materials (paper, cardboard strips, plastic material sheets) for bringing the strip which moves on an element (cylinder, roll, rigid guiding element, winding reel) into close contact with said element.

The invention relates to a method for manufacturing a fuel injector for an internal combustion engine that has a control valve, which opens or closes an outlet throttle from a control chamber and in which a closing element is moved into a valve seat in order to close the outlet throttle. The valve seat is produced by punch-forming using a forming punch. The invention also relates to a fuel injector that is manufactured in accordance with this method.

A method for filtering liquids, especially drinks, is by a filtering device having at least two filter lines. Each filter line has at least one filter unit with at least one preliminary filter and one terminal filter which can be connected to or disconnected from the respective filter line independently of each other and which can also be independently regenerated. The pressure differential of at least one filter unit on each filter line is measured. Once a predefinable threshold value is reached for the pressure differential, the volume flow entering the device is reduced. The associated filter unit is disconnected from the filter line. The reduced volume flow to be filtered is handled by the corresponding filter unit in the other filter line which is fluidically connected to the filter line between the respective preliminary filter and the respective terminal filter. The disconnected filter unit is regenerated. The filter unit which is purified by regeneration is subsequently reconnected to the filter line and the volume flow entering the device is increased once more.

A heat pump system for a motor vehicle comprises at least two heat exchangers 10, 12, through which, for heating and/or cooling the motor vehicle interior, a flow is conducted, and at least two coolant circulations 14, 16 separable from one another, of which at least one is connectable, independently of the other coolant circulation, with one, two or more heat exchangers 10, 12 such that through these, in the presence of a connection with two or more heat exchangers 10, 12, a flow is successively conducted and the other coolant circulation is connectable with at least one heat exchanger 10, 12.

A waste heat boiler has heat exchange tubes for indirect heat exchange of a relatively hot process gas and a cooling media, and a by-pass tube for by-passing a part of the process gas; a process gas collector collects and mixes a part of the heat exchanged process gas and at least a part of the by-passed process gas before the mix is lead via a control valve to the process gas outlet of the waste heat boiler together with the rest of the heat exchanged process gas.