Small-diameter and long-length expansion sensor

Details Small-diameter and long-length expansion sensor Small-diameter and long-length expansion sensor

1988-05-19

1989-09-19

Luong, Vinh

Machine element or mechanism

Elements

Cams

29523, 291564R, F16H 5300, B23P 1102

Patent

active

048670049

ABSTRACT:
A cylindrical sensor for the sectional expansion of hollow shafts by exerting fluid pressure includes a sensor body to be disposed in a hollow shaft. The sensor body has an end and includes a sensor surface having sections corresponding to sections of the hollow shaft to be expanded. The sensor body has an outer hollow cylinder with substantially radial bores formed therein. The bores discharge partly in the sections of the sensor surface and the bores have inner ends. The sensor body has an inner cylinder onto which the outer hollow cylinder is forced. The outer hollow cylinder has an inner cylindrical surface and the inner cylinder has an outer cylindrical surface. At least one of the cylindrical surfaces has at least two longitudinal grooves formed therein communicating with the inner ends of the radial bores and forming inflow lines and drain lines for pressure fluid extending from the end of the sensor body.

REFERENCES:
patent: 3310972 (1967-03-01), Erlandson et al.
patent: 4368571 (1983-01-01), Cooper
patent: 4420867 (1983-12-01), Busse
patent: 4575913 (1986-03-01), Sugiuchi et al.
patent: 4597365 (1986-07-01), Madaffer
patent: 4609317 (1986-09-01), Dixon et al.
patent: 4660263 (1987-04-01), Suzuki
patent: 4662046 (1987-05-01), Stephan
patent: 4750250 (1988-06-01), Maus et al.
patent: 4781076 (1988-11-01), Hartnett et al.
patent: 4782569 (1988-11-01), Wood
patent: 4790733 (1988-12-01), Vaccaro

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