Title:
NEGATIVE PRESSURE PUMP
Document Type and Number:
Japanese Patent JP2016223335
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a negative pressure pump capable of reducing energy loss of a power source and being miniaturized.SOLUTION: A negative pressure pump has a housing 20 in which a driving shaft 50 rotated and driven by a power source, is disposed in an inserted manner, a pump portion 70 formed inside of the housing 20, including a driven shaft 60, and generating a negative pressure by transmitting torque to the driven shaft 60 from the driving shaft 50, a driving-side clutch plate 82 rotated integrally with the driving shaft 50, a driven-side clutch plate 84 at least partially composed of a magnetic material, disposed movably in an axial direction of the driven shaft 60, rotated integrally with the driven shaft 60, and brought into contact with the driving-side clutch plate 82 to transmit torque of the driving shaft 50 to the driven shaft 60, a disc spring 92 disposed in the housing 20 and pressing the driven-side clutch plate 84 to the driving-side clutch plate 82, and an electromagnet 94 fixed to the housing 20 generating magnetic force against the pressing force of the disc spring 92, and separating the driven-side clutch plate 84 from the driving-side clutch plate 82.SELECTED DRAWING: Figure 2
Inventors:
YAMAZAKI SHINJI
Application Number:
JP2015109142A
Publication Date:
December 28, 2016
Filing Date:
May 28, 2015
Export Citation:
Assignee:
SANOH IND CO LTD
International Classes:
F04B35/00; F04B37/16; F04C25/02; F16D27/112
Domestic Patent References:
| JP2015028305A | 2015-02-12 | |||
| JPH0872700A | 1996-03-19 | |||
| JP2003074590A | 2003-03-12 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda
Previous Patent: Blower
Next Patent: An exhaust-air-purification device, a control device, and a control method
Next Patent: An exhaust-air-purification device, a control device, and a control method