公开(公告)号：US3780791A

公开(公告)日：1973-12-25

申请号：US3780791D

申请日：1971-12-02

Applicant: BARNARD M ,  BUTLER L

Inventor： BARNARD M ,  BUTLER L

IPC: F02C7/105 ,  F16J15/34 ,  F28D19/04 ,  F28D19/00

CPC classification number: F02C7/105 ,  F16J15/3456 ,  F28D19/047 ,  Y10S165/021

Abstract: In a thermal regenerator for a gas turbine a matrix is rotatably mounted in a housing. To segregate high and low pressure gas flows through the matrix a sealing assembly is provided in which a pad seal is urged into contact with the matrix and the space between seal and housing is closed by an elastomeric curtain.

Abstract translation: 在用于燃气轮机的热再生器中，矩阵可旋转地安装在壳体中。 为了隔离高压和低压气体流过基体，提供了密封组件，其中衬垫密封件被迫与基体接触，并且密封件和壳体之间的空间被弹性帘幕封闭。

公开(公告)号：US3819258A

公开(公告)日：1974-06-25

申请号：US29067972

申请日：1972-09-20

Applicant: SCRIPPS CLEMANS ,  BUTLER L

Inventor： BUTLER L ,  BANKS R

IPC: G03B21/43 ,  G03B19/18 ,  G03B21/44 ,  G03B23/12 ,  G03B21/46

CPC classification number: G03B23/12 ,  G03B19/18

Abstract: A film framing and transport system with provision for precisely positioning each frame of film during a film advance interval. A servo motor drives a film sprocket wheel for advancing film frame by frame. Control signals for operating the servo motor are produced by a synchronizing circuit and pulse circuitry, a velocity tachometer and a positioning circuit. The servo motor control signals cause the servo motor to accelerate and decelerate the film sprocket wheel at a rapid initial and final rate relative to the pull down interval, but sufficiently gradual to avoid excess film sprocket hole wear. The positioning circuitry precisely positions the film sprocket wheel at the end of each pull down interval.

Abstract translation: 一种胶片框架和输送系统，其提供用于在胶片提前间隔期间精确地定位胶片的每一帧。 伺服电机驱动胶片链轮，逐帧推进胶片。 用于操作伺服电动机的控制信号由同步电路和脉冲电路，速度转速计和定位电路产生。 伺服电机控制信号使伺服电机以相对于下拉间隔的快速初始和最终速度加速和减速薄膜链轮，但是足够渐进以避免过度的薄膜链轮孔磨损。 定位电路将胶片链轮精确定位在每个下拉间隔的末尾。