公开(公告)号：US3639805A

公开(公告)日：1972-02-01

申请号：US3639805D

申请日：1970-05-25

Applicant: GEN MOTORS CORP

Inventor： MUENCH NILS L ,  MURPHY CHARLES B

IPC: B60Q11/00 ,  H05B37/00

CPC classification number: H05B39/105 ,  B60Q11/00

Abstract: A vehicle-headlamp-energizing circuit for headlamps connected in series. Each headlamp has a breakdown diode connected in parallel, and each breakdown diode has a breakdown voltage slightly larger than the normal potential drop across its parallel connected lamp so as to conduct current around the lamp when it fails and maintain conduction through the remaining lamps.

Abstract translation: 用于串联连接的前照灯的车辆前照灯通电电路。 每个前照灯具有并联连接的击穿二极管，并且每个击穿二极管的击穿电压略高于其并联灯的正常电位降，以便当灯失效时传导电流，并保持通过其余灯的导通。

公开(公告)号：US3593136A

公开(公告)日：1971-07-13

申请号：US3593136D

申请日：1969-09-11

Applicant: GEN MOTORS CORP

Inventor： CHAPMAN FREDERICK W ,  JAMERSON FRANK E ,  MUENCH NILS L

IPC: G01P3/481 ,  G01P3/36

CPC classification number: G01P3/481

Abstract: A rotating member speed sensor in which microwaves are beamed toward the rotating member so as to be reflected from a surface of the rotating member to a detector. The surface of the rotating member has grooves therein so as to amplitude modulate the beamed microwaves such that the reflected microwaves as sensed by the detector have a frequency of modulation corresponding to the speed of rotation of the rotating member.

公开(公告)号：US3585421A

公开(公告)日：1971-06-15

申请号：US3585421D

申请日：1969-07-15

Applicant: GEN MOTORS CORP

Inventor： MUENCH NILS L ,  LEFFERT CHARLES B

IPC: H02N3/00

CPC classification number: H02N3/00

Abstract: An electrogasdynamic converter is attached to the exhaust port of an internal combustion reciprocating engine so that the exhaust gases assist in operation of the converter which produces a pulse of electrical energy for each pulse of exhaust gas. For a multicylinder engine, an EGD converter is provided for each cylinder and the converters are connected in parallel to produce a high voltage DC output or are connected in pairs with opposite polarities to provide a multiphase AC output.