PLURAL INVERTER CONTROL ARRANGEMENT
    22.
    发明公开
    PLURAL INVERTER CONTROL ARRANGEMENT 失效
    多重化逆变器的控制装置。

    公开(公告)号:EP0597039A1

    公开(公告)日:1994-05-18

    申请号:EP92918374.0

    申请日:1992-08-14

    IPC分类号: H02J3 H02M7

    CPC分类号: H02M7/493 H02J3/46

    摘要: Dispositif constitué par des onduleurs, de façon à convertir un courant continu en courant alternatif et comportant un premier onduleur (11) pourvu d'une entrée servant à recevoir du courant continu et d'une sortie constituant la sortie du premier onduleur, un deuxième onduleur (13) pourvu d'une entrée servant à recevoir du courant continu et d'une sortie constituant la sortie du deuxième onduleur, un circuit de sortie de courant alternatif (51) pourvu d'une première entrée servant à recevoir la sortie du premier onduleur, d'une deuxième entrée servant à recevoir la sortie du deuxième onduleur, ainsi que d'une sortie de courant alternatif servant à fournir du courant alternatif à partir de la sortie du premier onduleur et de la sortie du deuxième onduleur et, enfin, une unité de contrôle (49) servant à commander le premier onduleur, afin de minimiser la quantité de courant continu de la sortie du premier onduleur, ainsi qu'à commander la sortie du deuxième onduleur en se basant sur la quantité de courant continu entre la sortie du premier onduleur et la sortie du deuxième onduleur, de façon à minimiser la quantité de courant continu de la sortie du deuxième onduleur.

    METHOD OF MAINTAINING COMPONENTS SUBJECT TO FATIGUE FAILURE
    24.
    发明公开
    METHOD OF MAINTAINING COMPONENTS SUBJECT TO FATIGUE FAILURE 失效
    方法对于组件的娱乐疲劳SUBJECT

    公开(公告)号:EP1010114A1

    公开(公告)日:2000-06-21

    申请号:EP97953049.0

    申请日:1997-11-26

    IPC分类号: G06F17/60 G06F17/18

    CPC分类号: G06Q10/06 G06Q10/20

    摘要: A method is provided for maintaining components subject to fatigue failure during in service use. The method uses statistical distributions (10) in a simulation of in service use (16) of a fleet of components to predict the failure rate (12) of the fleet over a fixed time increment (14, 26) for an assumed inspection program. These predictions are used to determine an operating plan (20), including an inspection program, that will maintain an acceptable failure rate by detecting components with fatigue indications and removing the components prior to failure (22). The inspection program provides actual fatigue data resulting from in service use (18). As the inspection data base grows, the simulation is revised (24, 48) to incorporate the data. The predicted failure rates and the operating plan (20) are then updated based on the revised simulation.

    OIL FILTER AND METHOD OF INCREASING SERVICE LIFE OF OIL FILTER
    26.
    发明授权
    OIL FILTER AND METHOD OF INCREASING SERVICE LIFE OF OIL FILTER 失效
    机油滤清器和方法增量油过滤器的使用寿命

    公开(公告)号:EP0670746B1

    公开(公告)日:1998-01-21

    申请号:EP93922307.9

    申请日:1993-09-21

    IPC分类号: B01D27/06 B01D37/02

    摘要: A method of increasing service life of an oil and a filter in a transmission which converts a variable speed input into a constant speed output for driving a generator producing constant frequency power in an airframe in accordance with the invention utilizes a filter having interstices wetted prior to placement in an oil circuit with a quantity of a liquid additive that is washed from the interstices of the filter into solution with the oil during filling and/or operation of the transmission to form a mixture of the oil and additive which reduces the formation of metallo-organic soaps and solids, that are retained in the interstices of the filter. The filter may have pleats (63) having a plurality of layers including the filter media (46). One of the layers of the filtering media may be coated with an additional layer or surface coating (80) disposed on the pleats which is wettable by the additive.

    FAN WITH SECONDARY AIR PASSAGE FOR MOTOR COOLING
    27.
    发明公开
    FAN WITH SECONDARY AIR PASSAGE FOR MOTOR COOLING 失效
    与第二空气管道,用于发动机冷却风扇。

    公开(公告)号:EP0681655A1

    公开(公告)日:1995-11-15

    申请号:EP94907349.0

    申请日:1994-01-26

    发明人: HAGSHENAS, Behzad

    IPC分类号: F04D29 F04D25 H02K9

    CPC分类号: H02K9/06 F04D25/082

    摘要: A motor driven fan (10) capable of operating continuously in a dead-headed mode resulting from complete blockage of airflow from an outlet of the fan is provided in a fan including a housing (12) defining both a primary passage (52) for directing a flow of air from an inlet (36) to an outlet (28) of the fan, and a secondary passage for directing a flow of air between the inlet of the fan and ambient air surrounding the housing opposite the primary passage. The secondary passage includes a motor compartment (48) having an inlet passage (90) in fluid communication with the primary passage and an outlet passage (92) in fluid communication with the ambient air surrounding the housing. Impeller means (14), mounted within the housing, providing the flow of air in the primary and the secondary passages. A motor (20), mounted within the motor compartment and operatively connected to drive the impeller means is continuously cooled by the flow of air through the secondary passage even when the flow of air through the primary passage is reduced to zero by a complete blockage of the outlet (28) of the fan.

    POWER GENERATION SYSTEM WITH TRANSIENT SUPPRESSOR
    28.
    发明公开
    POWER GENERATION SYSTEM WITH TRANSIENT SUPPRESSOR 失效
    系统产生能量与瞬态抑制。

    公开(公告)号:EP0540716A1

    公开(公告)日:1993-05-12

    申请号:EP92910850.0

    申请日:1992-03-30

    IPC分类号: H02P9 H02H7 H02H9

    摘要: Les systèmes antérieurs de production de courant produisaient des tensions de sortie présentant des surtensions transitoires indésirables et relativement importantes en raison de réductions soudaines de charge. Afin de surmonter ce désavantage, un système de production de courant servant à produire une tension omnibus continue sur une barre omnibus cc (14) est équipé d'un commutateur (80) couplé à travers la barre omnibus cc (14) afin de supprimer les phénomènes transitoires de surtension. Le système de production de courant comprend un générateur synchrone (24) qui produit un courant alternatif et un redresseur (54) qui redresse le courant alternatif pour produire du courant continu et alimenter la barre omnibus cc (14) en courant continu. Un régulateur de tension (62) commande l'intensité de la tension de la barre omnibus cc en variant la quantité de courant fournie à une bobine inductrice (46) associée au générateur synchrone (24). Un commutateur (80) est couplé à travers la barre omnibus cc (14) et est commuté de manière répétitive lorsque la tension de l'omnibus cc atteint une intensité prédéterminée.

    CLUTCH CONTROL HYDRAULIC CIRCUIT PREHEATED WITH COMPRESSED AIR
    29.
    发明公开
    CLUTCH CONTROL HYDRAULIC CIRCUIT PREHEATED WITH COMPRESSED AIR 失效
    作者VERWÄRMUNG液压工作离合器控制系统使用空气压缩机

    公开(公告)号:EP0839269A1

    公开(公告)日:1998-05-06

    申请号:EP96909553.0

    申请日:1996-03-01

    IPC分类号: F02C7 F16D25 F16D48

    摘要: In a power transmission or generation apparatus having a source of heated pressurized air, the problem of achieving rapid controlled engagement of a hydraulically actuated clutch at low ambient temperatures is solved by utilizing a portion of that heated pressurized air for heating only that small control volume of hydraulic fluid within a clutch control circuit needed to achieve rapid actuation and stable control of the hydraulic clutch. Our invention is thus particularly applicable in a power transmission or generation apparatus having a gas turbine engine, or a turbocharged piston engine as the prime mover. With gas turbine engine powered units, our invention contemplates the use of compressor discharge air, rather than exhaust products for heating the hydraulic fluid. Similarly, for piston engines our invention contemplates the use of turbocharger discharge air rather than exhaust products. In one embodiment a clutch and a control circuit are provided in which the fluid volume of the control circuit is minimized, and fluid removal features are provided to effectively drain all residual fluid from a portion of the control circuit following disengagement of the clutch. On subsequent start-up from cold ambient temperatures, the drained portion of the control circuit is filled with preheated fluid prior to engagement of the clutch thus eliminating problems of slow response and controllability encountered due to cold viscous fluid in prior clutch control circuits.