公开(公告)号：US3908364A

公开(公告)日：1975-09-30

申请号：US32494073

申请日：1973-01-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LEFEBVRE CLARENCE A ,  SCHOEN LEWIS L

IPC: F02K9/70 ,  F02K9/00

CPC classification number: F02K9/70

Abstract: Rocket motors utilizing putty propellants are provided with means for permitting stress relief of the propellant grain while preventing slump of the initial burning surface. This invention is applicable to both end burning and internal burning propellant configurations.

公开(公告)号：US3907455A

公开(公告)日：1975-09-23

申请号：US44040774

申请日：1974-02-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： MONSARRAT WILLIAM G

IPC: F04D29/40 ,  F04D25/16 ,  F04D29/64

CPC classification number: F04D29/403

Abstract: In a multistage split compressor wherein the low pressure compressor has a plurality of stages on one rotor and the high pressure compressor has a plurality of stages on another rotor, the low pressure compressor is removable as a unit from the high pressure compressor by making the intermediate case in two pieces, one integral with the low pressure compressor case with an associated bearing for the low pressure rotor and the other integral with the high pressure compressor case also with an associated bearing for the high pressure rotor. By having these two pieces removably secured together, the associated compressor cases may be separated by removal of the attachment devices holding the cases together, and each case carries with it the associated bearing for the enclosed rotor.

Abstract translation: 在多级压缩机中，低压压缩机在一个转子上具有多个级，而高压压缩机在另一个转子上具有多个级，低压压缩机可作为一个单元从高压压缩机中取出， 壳体分为两个部分，一个与低压压缩机壳体一体，其具有用于低压转子的相关轴承，另一个与高压压缩机壳体集成，还具有用于高压转子的相关联的轴承。 通过将这两个部件可拆卸地固定在一起，相关的压缩机壳体可以通过移除将壳体保持在一起的附接装置而分开，并且每个壳体都带有用于封闭转子的相关轴承。

公开(公告)号：US3905884A

公开(公告)日：1975-09-16

申请号：US52561074

申请日：1974-11-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PARENTI JR EDMUND K ,  BLOOMFIELD DAVID P ,  GREVSTAD PAUL E ,  BEAL DANIEL W

IPC: H01M8/04 ,  C25B1/04 ,  C25B9/00 ,  H01M8/18 ,  C25B1/02 ,  H01M8/08

CPC classification number: C25B1/04 ,  H01M8/186 ,  Y02E60/366 ,  Y02E60/528 ,  Y02P20/129 ,  Y02P70/56

Abstract: An electrolysis cell system includes a compact electrolysis cell comprising gas diffusion electrodes on each side of an aqueous electrolyte retaining matrix. A portion of the hydrogen gas produced by the cell has water added thereto and is recirculated through a thermal exchange portion of the cell to remove waste heat from the cell and create a temperature gradient thereacross. The amount of water introduced into the recirculating gas stream is controlled to maintain a predetermined temperature of the gas stream emerging from the thermal exchange portion of the cell. The stream leaves the thermal exchange portion of the cell and reenters the cell in the gas space adjacent one of the electrodes. In a preferred embodiment the water added is sprayed into the recirculating gas stream and the heat laden stream emerging from the thermal exchange portion of the cell passes through a condenser where water vapor in the stream is converted to liquid and where heat is removed from the stream; the water vapor partial pressure of the stream reentering the cell is controlled by keeping the temperature of the stream leaving the condenser within a certain temperature range.

Abstract translation: 电解槽系统包括在含水电解质保持基体的每一侧上包含气体扩散电极的致密电解槽。 由电池产生的氢气的一部分具有添加到其中的水，并且通过电池的热交换部分再循环以从电池中除去废热并产生其间的温度梯度。 控制引入再循环气流中的水的量以保持从电池的热交换部分排出的气流的预定温度。 流离开电池的热交换部分并重新进入靠近电极之一的气体空间中的电池。 在优选的实施方案中，加入的水被喷射到再循环气流中，并且从电池的热交换部分出来的载热流通过冷凝器，其中流中的水蒸汽转化为液体，并且在从流中除去热量 ; 通过将离开冷凝器的流的温度保持在一定温度范围内来控制重新进入电池的流的水蒸气分压。

公开(公告)号：US3926903A

公开(公告)日：1975-12-16

申请号：US51025674

申请日：1974-09-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SCOLA DANIEL A

IPC: C08G59/24 ,  C08G59/50 ,  C08L63/00 ,  C08K5/15

CPC classification number: C08G59/5033 ,  C08G59/24 ,  C08L63/00 ,  Y10S525/911 ,  C08L2666/08

Abstract: A curable resin composition comprises, in weight percent referring to the total weight of components (a) and (b): (a) 9294% of a bicyclopentadiene ether epoxy resin, (b) 6-8% of a reactive elastomer selected from the group consisting of a functionally terminated butadiene homopolymer, a functionally terminated butadieneacrylonitrile copolymer and a functionally terminated butadiene-styrene copolymer and 9c) an aromatic polyamine curing agent in an amount sufficient to provide 0.5-2.0 amino hydrogen atoms of the amine for each epoxy group.

Abstract translation: 可固化树脂组合物以重量百分数表示组分（a）和（b）的总重量：（a）92-94％的双环戊二烯醚环氧树脂，（b）选择6-8％的反应性弹性体 由功能封端的丁二烯均聚物，功能封端的丁二烯丙烯腈共聚物和功能封端的丁二烯 - 苯乙烯共聚物组成的组和9c）芳族多胺固化剂，其量足以为每个环氧树脂提供胺的0.5-2.0个氨基氢原子 组。

公开(公告)号：US3925729A

公开(公告)日：1975-12-09

申请号：US50172274

申请日：1974-08-29

Applicant: UNITED TECHNOLOGIES CORP

Inventor： AMOROSO SALVATORE

IPC: H04B1/40 ,  H04B1/50

CPC classification number: H04B1/50 ,  H04B1/408

Abstract: A transceiver, adapted for use as either a master or a slave in a duplex pair, has a single, voltage-tunable, solid state oscillator to provide the carrier frequency wave, a small portion of which is mixed with the received wave and applied therewith to a single ended mixer; an AGC-controlled loop cancels transmitter input modulation from the receiver output. The oscillator of the slave transceiver is locked to a desired carrier frequency by a feedback loop including a tuning cavity adjusted to the same frequency as that of the master transceiver; the slave transceiver is first locked to a frequency on the skirt of its tuning cavity, differing from the center frequency of its tuning cavity by the common IF frequency and thereafter, upon sensing output from its IF amplifier (from the master), is switched to operate in response to AFC controlled by the received signal, such that the master and slave transceivers are locked together at frequencies differing by their common IF frequency. A single integrating amplifier provides demodulator and AFC filtering and, together with a unilaterally-effective bistable device, initial sweeping of the oscillator control voltage to achieve skirt tuning in the slave mode or center tuning in the master mode.

Abstract translation: 适用于双工对中的主器件或从器件的收发器具有单个电压可调谐的固态振荡器，以提供载波频率波，其中一小部分与接收的波混合并与其一起施加 到单端混合器; AGC控制环路从接收机输出消除发射机输入调制。 从收发器的振荡器通过包括调谐到与主收发器相同频率的调谐腔的反馈回路锁定到期望的载波频率; 从属收发器首先被锁定在其调谐腔的裙边上的频率上，与其调谐腔的中心频率不同于公共IF频率，此后，在感测到来自其IF放大器（从主机）的输出时，切换到 响应于由接收信号控制的AFC操作，使得主和从收发器在不同于其公共IF频率的频率处锁定在一起。 单个积分放大器提供解调器和AFC滤波器，以及单向有效双稳态器件，初始扫描振荡器控制电压，以实现从模式中的裙部调谐或主模式中的中心调谐。

公开(公告)号：US3921100A

公开(公告)日：1975-11-18

申请号：US50879174

申请日：1974-09-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： OLINGER JR JOHN B ,  WAHL ROGER L

IPC: H01S3/034 ,  H01S3/0953 ,  H01S3/02 ,  H01S3/08 ,  H01S3/22

CPC classification number: H01S3/0343 ,  H01S3/0953

Abstract: A gas dynamic laser is shown wherein gases containing constituents necessary to obtain a lasing action are passed through a nozzle array and directed into a lasing cavity and through a diffuser to an exit. An opening is located on each side of said lasing cavity with a shutter box outside of said cavity having a shutter door for opening or closing said opening. A mirror box is located behind each shutter box and contains a mirror. These mirros are aligned with the openings in the lasing cavity with each door positioned between an opening and a mirror. Another outlet opening is positioned downstream of the first opening which provides an outlet opening for a laser beam. A shutter box is located around this opening and also houses a shutter door for opening and closing said opening. The mirror box which extends behind this shutter box includes opening means for permitting the output beam to pass through an aerodynamic window to atmosphere. Actuating means are provided for rapidly opening and closing said shutter doors. Bearing means including recirculating balls are located on the top and bottom of each shutter door to rise in tracks at an angle to the sealing surface on the laser device. Vacuum means are provided to reduce the pressure in the shutter box and mirror box independently of the pressure in the lasing cavity.

Abstract translation: 示出了气体动态激光器，其中包含获得激光作用所必需的成分的气体通过喷嘴阵列并且被引导到激光腔并且通过扩散器进入出口。 开口位于所述激光腔的每一侧上，在所述空腔外部具有用于打开或关闭所述开口的快门的快门盒。 每个快门盒后面都有一个镜子盒，并包含一个镜子。 这些反射镜与激光腔中的开口对准，每个门位于开口和反射镜之间。 另一个出口开口位于第一开口的下游，其提供用于激光束的出口。 一个快门盒位于这个开口周围，并且还设有一个用于打开和关闭所述开口的快门门。 在该快门盒后面延伸的镜盒包括用于允许输出光束通过空气动力学视窗到大气的打开装置。 提供了用于快速打开和关闭所述活门的致动装置。 包括循环球的轴承装置位于每个闸门的顶部和底部，以与激光装置上的密封表面成一定角度上升。 提供真空装置以独立于激光腔中的压力来减小活门盒和镜盒中的压力。

公开(公告)号：US3917935A

公开(公告)日：1975-11-04

申请号：US53605174

申请日：1974-12-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LAZECKI STANISLAW V

IPC: G06F1/035 ,  G06F7/39 ,  G06F15/34

CPC classification number: G06F1/0356 ,  G06F2101/08

Abstract: A memory look up table, such as a read only memory (ROM) used in a system calculating the arithmetic ratio of two numbers, has its required memory storage reduced by first shifting the input data bits, representative of the magnitude of the numbers, to their more significant values whenever the magnitude of the largest of the two input numbers is less than that permitted by the maximum capacity of a system word, and using only some number of the shifted higher order data bits as the input address to the look up table. A method of controlling the shifting process by monitoring the most significant bits of input data, prevents the destruction of these more significant data bits when they are present.

Abstract translation: 诸如在计算两个数字的算术比的系统中使用的只读存储器（ROM）的存储器查找表通过首先将表示数字大小的输入数据位移位到 每当两个输入数字中最大的输入数字的大小小于系统字的最大容量所允许的幅度，并且仅使用一些数量的移位的高阶数据位作为查询表的输入地址时，它们的值越大。 。 通过监视输入数据的最高有效位来控制移位过程的方法防止在存在时这些更重要的数据位的破坏。

公开(公告)号：US3917520A

公开(公告)日：1975-11-04

申请号：US52560974

申请日：1974-11-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： KATZ MURRAY ,  SANDERSON ROBERT A ,  HIRSCHENHOFER JOHN H

IPC: H01M8/00 ,  C25B1/04 ,  C25B15/08 ,  H01M8/06 ,  C25B1/02

CPC classification number: C25B15/08 ,  C25B1/04 ,  Y02E60/366

Abstract: An electrolysis cell system includes a compact electrolysis cell comprising gas diffusion electrodes on each side of an aqueous electrolyte retaining matrix. A portion of the hydrogen gas produced by the cell is recirculated through the gas space of the cell and has water vapor added thereto to replenish the water used by the cell. A water metering device senses the amount of current supplied to the cell and adds the appropriate amount of water to the system in precisely the amount needed according to Faraday''s law corrected to reflect water lost in the product gases leaving the system. In a preferred embodiment a separate coolant loop flows through a thermal exchange portion of the cell in a direction opposite the flow of the recirculating product gas through the cell thereby resulting in a temperature gradient across the cell which helps maintain an even concentration of electrolyte across the cell for most efficient cell operation. The subject matter of this application is related to the subject matter of a commonly assigned application titled ''''Electrolysis Cell System Including a Recirculating Product Gas Stream for Cooling the Cell'''' by E. Parenti, D. Bloomfield, P. Grevstad and D. Beal, filed on even date herewith.

Abstract translation: 电解槽系统包括在含水电解质保持基体的每一侧上包含气体扩散电极的致密电解槽。 由电池产生的氢气的一部分通过电池的气体空间再循环，并且向其中添加水蒸气以补充电池使用的水。 水计量装置检测供应给电池的电流量，并根据法拉第定律将正确量的水加入到系统中，以反映离开系统的产品气体中的水分损失。 在优选实施例中，单独的冷却剂回路以与再循环产物气体通过电池的流动相反的方向流过电池的热交换部分，从而导致跨过电池的温度梯度，这有助于维持电解质的均匀浓度 细胞用于最有效的细胞操作。

公开(公告)号：US3915747A

公开(公告)日：1975-10-28

申请号：US41933073

申请日：1973-11-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SUMMERS WARREN S ,  FANCIULLO SALVATORE

IPC: H01M8/04 ,  H01M8/06 ,  H01M27/12

CPC classification number: H01M8/0612 ,  C01B3/24 ,  C01B2203/066 ,  H01M8/04776

Abstract: The injection of fuel into a fuel cell hydrogen generator is controlled by the actuation of a fuel injector valve in response to a pulse width modulated square wave as a function of fuel cell stack operation. The off time of the fuel injector valve is fixed at a constant value by comparison of a ramp voltage produced by a first integrator with a constant reference voltage. The on time of the fuel injector valve is variable and is determined by comparing a ramp voltage from a second integrator with a variable voltage which is a function of fuel stack voltage and fuel cell gross current. A fail-safe circuit is incorporated to insure that the fuel injector does not remain in a continuous on or off state if a malfunction occurs in the control circuitry.

Abstract translation: 通过响应于作为燃料电池堆操作的函数的脉冲宽度调制的方波，通过燃料喷射阀的致动来控制向燃料电池氢发生器的燃料喷射。 通过比较由第一积分器产生的斜坡电压与恒定参考电压，将燃料喷射阀的关闭时间固定为恒定值。 燃料喷射阀的接通时间是可变的，并且通过将来自第二积分器的斜坡电压与作为燃料电池组电压和燃料电池总电流的函数的可变电压进行比较来确定。 如果在控制电路中发生故障，则结合了故障保护电路以确保燃料喷射器不保持在连续的打开或关闭状态。

公开(公告)号：US3915521A

公开(公告)日：1975-10-28

申请号：US51034374

申请日：1974-09-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： YOUNG JOHN H

IPC: F01D25/18 ,  F16C33/60 ,  F16C33/66 ,  F16C33/76 ,  F16J15/38 ,  F16C1/24 ,  F16C19/08 ,  F16C21/00 ,  F16C33/78

CPC classification number: F16C19/163 ,  F01D25/183 ,  F16C33/586 ,  F16C33/60 ,  F16C33/6677 ,  F16C33/76 ,  F16C2360/23 ,  F16J15/38

Abstract: Apparatus for supporting a rotor assembly of a gas turbine engine is disclosed. A lubricated ball type thrust bearing which supports one end of the rotor shaft is disposed within a bearing compartment formed between the rotor assembly and the engine stationary structure. One or more carbon seals, in operative relation to a seal plate on the rotor assembly, prevent the flow of excess ambient engine air into the compartment. Lubricating and cooling oil is supplied to the compartment where it is positively apportioned between the bearing and the seal plate.

Abstract translation: 公开了一种用于支撑燃气涡轮发动机的转子组件的装置。 支撑转子轴的一端的润滑球型止推轴承设置在形成在转子组件和发动机固定结构之间的轴承室内。 与转子组件上的密封板有效关系的一个或多个碳密封件防止多余的环境发动机空气流入隔间。 润滑和冷却油被供应到在轴承和密封板之间积极分配的隔室中。