Other

Itt Manufacturing Enterprises, Inc.

Xylem IP Holdings, LLC

Xylem IP Management S.a R.l.

Xylem Europe Gmbh

Oliver Laing

Nikolaus Laing

Karsten Laing

Ingeborg Laing

Ludwig Ludin

Johannes L Laing

Hartmut Hensel

Peter Schaper

Inge Laing

Zoltan Sagi

A pump device is proposed for arrangement on a recirculation line of an industrial water system including a feed pump, a check valve and a bypass line for the check valve. The bypass line is arranged in parallel to the check valve and wherein a combination of the check valve and bypass line is arranged in series to the feed pump.

Pump device, industrial water system, method for operating an industrial water system, and self-teaching method for a delivery pump in an industrial water system

A feed pump to increase the pressure in a line includes a pumping chamber for a pumping medium. At least one temperature sensor, which is arranged in the feed pump, is allocated to the pumping chamber and is in thermal contact with the pumping chamber for determining a temperature of the pumping medium in the pumping chamber. A temperature control device is allocated to the at least one temperature sensor and by which defined temperature conditions can be created in an area surrounding the at least one temperature sensor. An evaluation device to which the at least one temperature sensor is coupled for signal purposes uses the data from the at least one temperature sensor to determine whether pumping medium is flowing through the pumping chamber or not.

Switching of a pump based on the throughput determined by a thermal flow meter

A method for determining a through-flow quantity in a fluid delivery system, in which a fluid is delivered by a pump, the pump including an electromotor and the electromotor being operated at a first speed when the electromotor is in operation and the through-flow quantity being determined from a measured motor power and the speed. The method includes (i) increasing the first speed to a second speed which is greater than the first speed; (ii) determining a second through-flow quantity at the second speed from the motor power and the second speed; (iii) determining a third through-flow quantity from the second through-flow quantity by extrapolation of the second speed to the first speed, wherein the third through-flow quantity is the target variable; and, (iv) reducing the speed back to the first speed once the second through-flow quantity has been determined.

Method for determining a through-flow quantity in a fluid delivery system, method for determining an amount of energy of a delivery fluid, fluid delivery system and pump

A water delivery system is provided, comprising at least one faucet device with a cold water faucet part and a hot water faucet part, a cold water line to the at least one faucet device, a tankless heater device for heating water, a hot water line having a first portion running from an outlet of the tankless heater device to the at least one faucet device and having a second portion running from the at least one faucet device to an inlet of the tankless heater device, and a circulatory pump arranged in the second portion of the hot water line, wherein the circulatory pump has a prefixed first performance level and a prefixed second performance level, wherein the first performance level causes a finite water flow in the hot water line which is below an operation threshold value of the tankless heater device.

Water delivery system and method for making hot water available in a domestic hot water installation

A circulation pump for a conveyed liquid is provided. The circulation pump has an electric motor, which is electronically commutated, has a rotor, a stator and a motor circuit. An impeller is connected in a rotationally fixed manner to the rotor. The electric motor has an evaluation device for determining a flow rate of conveyed liquid through the circulation pump from a rotational speed of the rotor and/or a power consumption of the electric motor. At least one signal output is provided, by which a flow rate signal and/or flow rate-dependent switching signal can be supplied by the circulation pump.

Circulation pump, heating system and method of determining the flow rate of a liquid through a pipe

A circulating pump with an electric motor, which comprises a rotor and a stator, is proposed, the rotor being mounted on a spherical bearing which comprises a sliding body with a convex spherical surface and a bearing bushing with a concave spherical surface and which is fluid-lubricated, in which pump a flow system for passing lubricating fluid through a lubricating region between the sliding body and the bearing bushing is separate from a gap between the stator and the rotor.

Circulating pump and method for the fluid lubrication of a spherical bearing in an electric motor

A method, system and device for making hot water available in a water-supply system is disclosed. The water-supply system includes a source of hot water, a hot-water line and one or more tap connections for hot water connected to the hot-water line. The method includes transporting water from the source of hot water through the hot-water line during at least a portion of periods of non-withdrawal through the one or more tap connections such that a temperature profile of water in the hot water line is at least one of substantially temporally constant and varying spatially monotonically along the hot-water line.

System and method for making hot water available in a domestic water installation and domestic water installation

A device for the local cooling or heating of an object by means of a fluid is disclosed. The device comprises a circulation pump for the fluid. A thermal contact element for making thermal contact with the object is integrated in the circulation pump. The circulation pump has a housing part which is flexible and/or movable, the housing part being the thermal contact element.

Device for the local cooling or heating of an object

To provide a solar circulation pump for connection to a photovoltaic panel device, comprising an electric motor which is electronically commutated and has a control device for supplying a periodic commutation signal, it is proposed that the control device be so configured that the commutation signal is varied with respect to the ratio of switch-on time to switch-off time.

Solar circulation pump and method for controlling a solar circulation pump, for controlling the starting of and for setting the performance of a solar circulation pump

The invention relates to reciprocating machines with pistons being lubricated by a gas film which is built-up by rotation of the piston in the cylinder, both piston and cylinder consisting preferably of ceramic materials. The invention relates furthermore to engines comprising rotating pistons.

Reciprocating machine

A method and apparatus for storing excess electricity generated during off-peak periods. The electricity is used to run compressors which compress the air in a plurality of stages. The air is cooled after each stage to remove the heat of enthalpy. The air is stored in bags on the bottom of the sea. To recover the energy, the compressed air is run through turbines and the heat removed during compression is reintroduced.

Energy storage for off peak electricity

The wind machine has at least two rotors fixed to a tower. The tower is rotatably supported by a foot bearing at its base and a second bearing positioned below a horizontal stud which supports a pair of rotor units. The second bearing is supported by guy wires and the rotor units can pivot about the stud axis. The wind machine is used to drive a pump and a plurality of wind machines can drive pumps in series or in parallel.

Wind machine

An electric-motor-driven circulating pump for heating systems reduces power consumption of the motor, whereby the reduction ensues by means of periodic interruption of a line feed by means of electronic switch means so that switch-on and pause intervals follow one another. The switch means interrupt or close current flow at a zero-axis crossing of the voltage of the line feed.

Power saving thermal carrier circulating pump particularly for heat pump

Process for the manufacture of rotors for asynchronous electrical motors with spherical air gaps. These rotors are designed as permanent magnets with low coercive force and comparably high electrical conductivity so that eddy currents can be formed as long as rotor rpm is different from the frequency of the rotating field of the stator while these rotors convert to permanent magnets running under synchronous conditions at rated performance. The process steps are the following:

Spherical rotor for electrical motors

A long-period storage accumulator for storing heat water is used as a storing medium. The water is enclosed in large thinwalled containers which are arranged under the ground. The water pressure forces acting on the container walls are carried by the surrounding of the container.

Growing community of inventors

Tubingen, Germany

Oliver Laing