Title:
極低温冷凍機用磨耗のないバルブ
Document Type and Number:
Japanese Patent JP2007527985
Kind Code:
A
Abstract:
An improved method of reducing wear dust and torque required to turn a multi-port rotary disc valve utilizes a thrust bearing to hold the valve seat and/or valve disc such that they are not in contact with each other, or have light contact each other.
Inventors:
Eric Seits
Gao, Jin-Lin
Long Swath, Ralph Sea
Shui, Min Yao
Gao, Jin-Lin
Long Swath, Ralph Sea
Shui, Min Yao
Application Number:
JP2007503009A
Publication Date:
October 04, 2007
Filing Date:
March 08, 2005
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
F25B9/14; F16K3/10; F16K3/26; F16K31/04; F16K39/04; F25B9/00
Domestic Patent References:
| JPS6136569A | 1986-02-21 | |||
| JPH03219173A | 1991-09-26 | |||
| JP2004053157A | 2004-02-19 | |||
| JPH09236347A | 1997-09-09 |
Foreign References:
| US6694749B2 | 2004-02-24 | |||
| US20020066276A1 | 2002-06-06 | |||
| US4373476A | 1983-02-15 | |||
| US3237421A | 1966-03-01 | |||
| US6256998B1 | 2001-07-10 | |||
| US3119237A | 1964-01-28 | |||
| US3205668A | 1965-09-14 | |||
| US3620029A | 1971-11-16 | |||
| US3625015A | 1971-12-07 | |||
| US4987743A | 1991-01-29 | |||
| US3677295A | 1972-07-18 | |||
| US4925464A | 1990-05-15 | |||
| US2832561A | 1958-04-29 | |||
| US2319733A | 1943-05-18 | |||
| US5315963A | 1994-05-31 |
Attorney, Agent or Firm:
Tadahiko Ito