1
Nobuo Iwata, Mitsugu Sugiyama, Toshiya Sato, Tadashi Shinohara, Yutaka Shio, Tomonori Yabuta: Apparatus for detecting rotational speed. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, October 5, 1999: US05962783 (29 worldwide citation)

An apparatus for a rotational speed detecting includes a rotating disc having plural slits in a circumferential direction. A radiant element radiates light rays through the slits. A photodetector receives the rays radiated by the radiant element. Peak detectors detects peak points of the detected si ...


2
Jiro Nakano, Munetaka Noda: Method and apparatus for detecting rotational speed of rotary member. Toyota Jidosha Kogyo Kabushiki Kaisha, Nippondenso, Cushman Darby & Cushman, February 4, 1986: US04569027 (21 worldwide citation)

A method of detecting the rotational speed of a rotary member, which comprises the steps of detecting, in sequence, a time period indicative of the interval between successive preceding and following angular positions of the rotary member, memorizing in turn from each of the angular positions of the ...


3
Peter J Spadafora, Jill G Hersberger, Myron H Bell, Robert L Harding: Method and apparatus for detecting rotational speed. Delco Electronics Corporation, Howard N Conkey, January 17, 1989: US04799178 (19 worldwide citation)

A system and method for determining the rotational speed of a rotating member is described that determines speed from signals having a frequency directly proportional to the rotational speed. The speed signals are counted during each of successive sampling intervals. At the end of each sampling inte ...


4
Ishii Tomohiro: Apparatus for detecting rotational speed. Koyo Seiko, August 11, 2000: JP2000-221203 (9 worldwide citation)

PROBLEM TO BE SOLVED: To simply and easily set and detach a sensor in a rotational speed- detecting apparatus. SOLUTION: A rotational speed-detecting device 6 has a pulsar ring 10 and a sensor 20. The sensor 20 is set to a use object via a supporting annular body 40. In setting or separating the sen ...


5
Harumi Fujio, Seo Nobuyuki: Apparatus for detecting rotational speed. Koyo Seiko, August 11, 2000: JP2000-221202 (6 worldwide citation)

PROBLEM TO BE SOLVED: To easily separate a sensor alone in a simple operation in a rotational speed-detecting apparatus. SOLUTION: A sensor 20 is mounted to a supporting annular body 40 in a manner of engaging an engagement element 22 of the sensor 20 with the supporting annular body 40, so that the ...


6
Toda Kazuhisa: Apparatus for detecting rotational speed. Koyo Seiko, August 11, 2000: JP2000-221204 (5 worldwide citation)

PROBLEM TO BE SOLVED: To easily and speedily set a sensor to a supporting annular body in a simple operation in a rotational speed-detecting apparatus. SOLUTION: A rotational speed-detecting device 6 has a pulsar ring 10 and a sensor 20. The sensor 20 is set to a use object via a supporting annular ...


7
Morimura Naoki: Apparatus for detecting rotational speed. Koyo Seiko, August 11, 2000: JP2000-221205 (2 worldwide citation)

PROBLEM TO BE SOLVED: To simplify a recovery work when a sensor fails in a rotational speed- detecting apparatus. SOLUTION: A rotational speed-detecting device 6 has a pulsar ring 10 and a sensor 20. The sensor 20 is set to a use object via a supporting annular body 40. At least two planned areas 47 ...


8
Waldenmeier Steffen: (De) Drehzahl- und positionserkennungsvorrichtung, (En) Apparatus for detecting rotational speed and position. Robert Bosch, Waldenmeier Steffen, ROBERT BOSCH, June 28, 2007: WO/2007/071489

(EN) The invention is based on an apparatus for detecting rotational speeds and/or the position of a rotatable body (22), said apparatus having at least two sensor elements (12, 16) whose active surfaces (14, 18) are arranged in a sensing region (24) of the body (22). The invention proposes that the ...


9
HERTWECK GERNOT: H├╝lsenelement zur axialen festlegung eines lagers in einem abgasturbolader (DE), Sleeve element for axially fixing a bearing in a turbocharger (EN). DAIMLER, October 14, 2010: WO/2010/115570

The invention relates to a sleeve element (30, 30', 40, 40', 40") for axially fixing at least one bearing (24, 26) of a rotatable shaft (22), in particular of a shaft (22) of a turbocharger (10, 10'), which sleeve element has on the outer surface (46, 46', 46") thereof at least one through-opening ( ...


10
Mayama Shuji, Matsuura Takahiro, Anzai Yoichiro, Ikuta Katsuya: Method and apparatus for detecting rotational speed of generator, and detector for maximum electricity generated by generator. Auto Network Gijutsu Kenkyusho, Sumitomo Wiring Syst, Sumitomo Electric, December 13, 2007: JP2007-325367

PROBLEM TO BE SOLVED: To provide a rotational speed detector for generators that is capable of detecting the rotational speed of a generator, rather than from a mechanical aspect of the rotation of an armature coil but from the electrical aspect of the output waveform outputted from the generator.SO ...