Abstract:
Turbokompressor (10), insbesondere für ein Brennstoffzellensystem (1). Der Turbokompressor (10) weist eine erste Verdichtereinheit (101) und eine zweite Verdichtereinheit (102) auf. Die erste Verdichtereinheit (101) umfasst einen auf einer von einer Antriebseinheit (20) antreibbaren ersten Welle (14) angeordneten ersten Verdichter (11). Die zweite Verdichtereinheit (102) umfasst einen zweiten Verdichter (12) und eine Abgasturbine (13). Der zweite Verdichter (12) und die Abgasturbine (13) sind auf einer zweiten Welle (24) angeordnet.
Abstract:
Various embodiments provide a compact, portable dunnage bag inflation system that provides an air source that is easily carried by a user via a wearable container. Generally, the dunnage bag inflation system includes a portable dunnage bag inflator having an air generator that, in operation, expels air through an outlet. One end of a hose is removably connectable to the air generator to fluidly connect the hose and the outlet. An inflator head that includes a button actuatable to operate the portable dunnage bag inflator is connected to an opposing end of the hose. The dunnage bag inflation system also includes a rechargeable battery electrically connectable to the portable dunnage bag inflator to power the inflator and a charging station to charge the battery. This enables dunnage bags to be inflated to desired specifications at point-of-use and eliminates the need for a compressed air supply.
Abstract:
Die Erfindung betrifft ein Verfahren zum Regeln einer Ventilatorgruppe zur Erzeugung eines vordefinierten Gesamtvolumenstromes vorgeschlagen, wobei die Ventilatorgruppe aus einer Vielzahl von parallel betriebenen einzelnen Ventilatoren besteht, die jeweils einen Einzelvolumenstrom erzeugen. Die Ventilatorgruppe ist in mindestens eine erste und wenigstens eine zweite Regelgruppe aufgeteilt, die jeweils mindestens einen Ventilator umfassen. Unter Einhaltung eines im Ergebnis konstanten Gesamtvolumenstromes wird der Einzelvolumenstrom des mindestens einen Ventilators der ersten Regel- gruppe durch eine Regelung in einen Bereich des optimalen Wirkungsgrades durch eine Drehzahlveränderung erhöht und der Einzelvolumenstrom des mindestens einen Ventilators der zweiten Regelgruppe durch Drehzahlverringerung entsprechend reduziert. Dabei ist vorgesehen, dass jederzeit alle Ventilatoren einen Beitrag zum Gesamtvolumenstrom leisten und zu keinem Zeitpunkt eine Abschaltung eines Ventilators der zweiten Regelgruppe erfolgt. Die wenigstens eine erste Regelgruppe ist innerhalb seiner höchsten Leistungsaufnahme in sein Wirkungsgradoptimum geregelt, so dass die Energiebilanz des Gesamtsystems der Ventilatorgruppe optimiert ist.
Abstract:
A package air conditioning unit includes a housing, a condenser portion including a condenser located in the housing and an evaporator portion located in the housing. The evaporator portion includes an evaporator in fluid communication with the condenser and a vane-axial flow fan rotatable about a fan axis to power airflow from a conditioned space, across the evaporator and back toward the conditioned space.
Abstract:
An ceiling fan (10) comprising a motor system (16). The motor system (16) is mounted around a motor shaft (90). The motor shaft (90) couples to a downrod (14) for suspending the ceiling fan (10) from a structure. The motor shaft (90) and motor (16) are encased by a motor housing (198). The motor housing (198) comprises hub arms (202) for mounting a plurality of blade holders (18). The blade holders (18) coupled to a plurality of blades (20) rotatable about the motor (16) during operation. The downrod (14) comprises a wire disk (58) mounting guy wiring (22) to the downrod (14). A retention rod (304) is utilized internal of the motor (16) and downrod (14) as a secondary retention method. An electrical connector (568) is internal of the motor shaft (90) and electrically couples to the stator to power the motor (16).
Abstract:
An ceiling fan (10) comprising a motor system (16). The motor system (16) is mounted around a motor shaft (90). The motor shaft (90) couples to a downrod (14) for suspending the ceiling fan (10) from a structure. The motor shaft (90) and motor (16) are encased by a motor housing (198). The motor housing (198) comprises hub arms (202) for mounting a plurality of blade holders (18). The blade holders (18) coupled to a plurality of blades (20) rotatable about the motor (16) during operation. The downrod (14) comprises a wire disk (58) mounting guy wiring (22) to the downrod (14). A retention rod (304) is utilized internal of the motor (16) and downrod (14) as a secondary retention method. An electrical connector (568) is internal of the motor shaft (90) and electrically couples to the stator to power the motor (16).
Abstract:
A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed driver assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed driver assembly drives higher pressure compression stage disposed in the split functional compression train of the air separation plant. The first and second variable speed driver assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.
Abstract:
공기 증폭형 선풍기는 관 중심을 전후로 관통하는 유인구가 형성된 송풍관을 포함한다. 송풍관의 하방에 위치한 베이스에 공기유동수단이 구비되고, 송풍관과 베이스의 내부 전방측에 유입통로, 내부 후방측에 토출통로가 형성된다. 송풍관의 전방측 상방에 형성된 유입구를 통해 외부 공기가 유입되어 공기유동수단으로 흡입되고 다시 배출되어 송풍관의 후방에 유인구쪽으로 형성된 토출구를 통해 배출된다. 토출구로 배출되는 빠른 공기흐름에 의해 외부공기가 유인구로 유인되어 전방으로 이동한다. 본 발명은 유입구를 모터와 송풍팬으로부터 먼 거리에 설치하여 유입구를 통해 외부로 확산되는 소음을 저감한다. 또한, 모터에 복수의 송풍팬을 연결하여 모터가 낮은 회전속도로 구동됨에도 불구하고 충분한 풍량을 토출하여 소음이 저감된 선풍기를 제공한다.