Title:
超音波ウォータージェット装置
Document Type and Number:
Japanese Patent JP4718327
Kind Code:
B2
Abstract:
An ultrasonic waterjet apparatus (10) has a mobile generator module (20) and a high-pressure water hose (40) for delivering high-pressure water from the mobile generator module (20) to a hand-held gun (50) with a trigger and an ultrasonic nozzle (60). An ultrasonic generator in the mobile generator module (20) transmits high-frequency electrical pulses to a piezoelectric or magnetostrictive transducer (62) which vibrates to modulate a high-pressure waterjet flowing through the nozzle (60). The waterjet exiting the ultrasonic nozzle (60) is pulsed into mini slugs of water, each of which imparts a waterhammer pressure on a target surface. The ultrasonic waterjet apparatus (10) may be used to cut and de-burr materials, to clean and de-coat surfaces, and to break rocks. The ultrasonic waterjet apparatus (10) performs these tasks with much greater efficiency than conventional continuous-flow waterjet systems because of the repetitive waterhammer effect A nozzle with multiple exit orifices or a rotating nozzle (76) may be provided in lieu of a nozzle with a single exit orifice to render cleaning and de-coating large surfaces more efficient. A water dump valve (27) and controlling solenoid are located in the mobile generator module (20) rather than the gun (50) to make the gun lighter and more ergonomic.
Inventors:
Vijay Mohan Em
Yang Wen Soo
Tew Andrew
Lenbaolin
Yang Wen Soo
Tew Andrew
Lenbaolin
Application Number:
JP2005510080A
Publication Date:
July 06, 2011
Filing Date:
November 03, 2003
Export Citation:
Assignee:
VN Advanced Technologies, Inc.
International Classes:
B26F3/00; B05B3/02; B05B7/04; B05B7/32; B05B12/06; B05B15/00; B06B1/06; B08B3/02; B08B3/12
Domestic Patent References:
| JP10085634A | ||||
| JP55015686A |
Foreign References:
| US4821961 | ||||
| US3373752 | ||||
| EP1016469A1 | ||||
| US5154347 |
Other References:
VIJAY, M. M,PROC. 14TH INTERNATIONAL CONFERENCE ON JETTING TECHNOLOGY BHR GROUP CONFERENCE SERIES,英国,1998年,N32,P39-57
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato