A blower includes a stationary portion including an inlet and an outlet, a rotating portion provided to the stationary portion, and a motor adapted to drive the rotating portion. The inlet and outlet are co-axially aligned. The stationary portion includes a housing, a stator component provided to the housing, and a tube providing an interior surface. The rotating portion includes one or more bearings that are provided along the interior surface of the tube to support a rotor within the tube. In an embodiment, the blower is structured to supply air at positive pressure.

Blower With Bearing Tube

An impeller comprising: a top shroud; a bottom shroud, a plurality of vanes extending from the top shroud to the bottom shroud, each said vane including a top edge at a radially inner portion of the vane in contact with the top shroud and a bottom edge at a radially outer portion of the vane in contact with the bottom shroud, such that a radially inner portion of the vane at the bottom edge of each vane is not in contact with or adjacent the bottom shroud and a radially outer portion of the vane at the top edge of each vane is not in contact with or adjacent the top shroud.

Single or multiple stage blower and nested volute(s) and/or impeller(s) therefor

A temperature control system for controlling the rate of flow of a flammable fluid at generally constant pressure is disclosed. The system may include a flow control apparatus that is free of a regulator mechanism, for affecting the flow of the fluid. The flow control apparatus may be operable between at least a first flow rate and a second flow rate, and may have at least one upstream opening and at least one downstream opening. The system may also include a first burner in fluid communication with the downstream opening of the flow control apparatus and a conduit in fluid communication at one end thereof with the upstream opening of the flow control apparatus, and configured at the other end thereof for connection to a fuel supply. A thermocouple may be located in the vicinity of the burner, for converting a sensed thermal state into an electrical signal. An electronic controller, in communication with the flow control apparatus, for activating the flow control apparatus to one of said first and second flow rates, and being in communication with the thermocouple for receiving the electrical signal from the thermocouple is also provided. An interface connected to the controller for manually inputting a desired temperature may be included, wherein the controller is operable to automatically cycle the flow control apparatus between the first and second flow rates until the temperature sensed by the thermocouple is similar to the desired temperature.

Temperature control apparatus and method for a barbeque grill

An air-conditioning device (100) provided with the following: an outdoor unit (1) containing a compressor (10), a first refrigerant-path switching device (11), and a heat-source-side heat exchanger (12); a heat-medium exchanger (3) containing an inter-heat-medium heat exchanger (15), a flow-restriction device (16), a second refrigerant-path switching device (18), and a pump (21); and at least one indoor unit (2) containing a usage-side heat exchanger (26). The compressor (10), the first refrigerant-path switching device (11), the flow-restriction device (16), the second refrigerant-path switching device (18), and the inter-heat-medium heat exchanger (15) are connected by refrigerant piping, forming a refrigeration-cycle circuit. The inter-heat-medium heat exchanger (15) and the usage-side heat exchanger (26) are connected by heat-medium piping, forming a heat-medium circulation circuit through which a heat medium other than the refrigerant circulates. By switching the first refrigerant-path switching device (11), this air-conditioning device enters a defrost mode wherein the refrigerant discharged from the compressor (10) is supplied to the heat-source-side heat exchanger (12). In said defrost mode, some of the refrigerant flowing from the heat-source-side heat exchanger (12) is supplied to the inter-heat-medium heat exchanger (15) without going through the flow-restriction device (16), and the rest is returned to the outdoor unit (1) without going through either the flow-restriction device (16) or the inter-heat-medium heat exchanger (15).

Air conditioning device

An impeller includes a hub and at least one blade. In this case, the hub has at least one balancing portion disposed on hub and arranged with respect to a center of the hub. The balancing portion has at least one corner. The blades are disposed around the hub. In addition, a fan including the impeller is also provided. The impeller and the fan can enhance the rotation stability. As a result, the product reliability and lifetime can be increased. Furthermore, the impeller and the fan facilitate the balancing object to be separated from the tool at the corner.

Fan and impeller thereof

A method is proposed for regulating a firing device taking into account the temperature and/or the burner load, in particular with a gas burner, comprising the regulation of the temperature (T actual) produced by the firing device using a characteristic which shows a value range corresponding to a desired temperature (T desired) dependent upon a first parameter (m L, V L) corresponding to the burner load (Q), wherein when representing the characteristic, a second parameter, preferably the air ratio (.lambda.), defined as the ratio of the actually supplied quantity of air to the quantity of air theoretically required for optimal stoichiometric combustion, is constant.

Method for regulating and controlling a firing device and a firing device

A radial fan includes an integrated circuit which is conductively connected to a printed circuit board to control a motor. The flow of air provided by a cooling impeller is conveyed directly to the integrated circuit to cool the integrated circuit during operation of the radial fan.

Cooling device for a radial fan driven by an electric motor with IC

A radial fan impeller has the following features: a plurality of blades distributed around the periphery; viewed in the radial direction, the blades extend from an inner inlet region to an outer discharge region; the blades extend axially, viewed in the direction of a rotation axis, between an inlet side and an axially opposite hub side; on the inlet side, the blades are connected by means of their radial extension as far as the discharge region to a covering disc which has a central inflow opening, opening out into the inlet region; on the hub side the blades are only connected with their radial inner end regions to a central hub; the blades and the covering disc define an outer fan impeller diameter which is at least ten times an axially measured flow discharge width of the blades provided in the discharge region.

Radial fan impeller

Disclosed is a method for regulating a firing apparatus by taking into account the temperature and/or the burner load, especially in a gas burner. According to said method, the temperature (Tist) generated by the firing apparatus is regulated using a characteristic curve which represents a value range corresponding to a setpoint temperature (Tsoll) in accordance with a first parameter (mL, VL) that corresponds to the burner load (Q). A second parameter, preferably the excess air coefficient ( ), which is defined as the ratio between the actually delivered quantity of air and the quantity of air theoretically required for optimal stoichiometric combustion, is constant when representing the characteristic curve.

Method for regulating and controlling a firing apparatus and firing apparatus

Die Erfindung betrifft eine schwingungsdampfende Lagerung (1) eines Motors auf einem Untergrund (2), mit einer motorseitigen Halterung (3), einer am Untergrund angeordneten Aufnahme (4) und einem elastischen Element (5), das einen Hohlraum aufweist und zwischen der Halterung (3) und der Aufnahme (4) angeordnet ist, wobei der Hohlraum des Elements (5) an seinem der Aufnahme (4) zugewandten Endabschnitt (9) geschlossen und ein Endabschnitt (9) des Elements (5) formschlussig in einem Sockel (11) des Untergrunds (2) gehalten ist. The invention relates to a vibration-damping mounting (1) of a motor on a base (2), with a motor-side bracket (3), one arranged on the substrate holder (4) and an elastic element (5) having a cavity and between the retainer (3) and the receptacle (4) is arranged, wherein the cavity of the element (5) at its said receptacle (4) facing end section (9) is closed and an end portion (9) of the element (5) in a form-fitting manner in a socket (11 ) of the substrate (2) is held.

Rudolf Tungl

Papers

Method for regulating and controlling a firing device and a firing device

Cooling device for a radial fan driven by an electric motor with IC

Radial fan impeller

Method for regulating and controlling a firing apparatus and firing apparatus

Vibration damping support