Title:
PULSATION REDUCTION DEVICE AND HYDRAULIC PRESSURE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/097235
Kind Code:
A1
Abstract:
A pulsation reduction device 10 equipped with a housing 11, a case 12, a plug 13, a communication passage 14, and a bladder 15. The housing 11 has an accommodation hole 11c communicating with an inflow opening 11a and an outflow opening 11b. The case 12 is accommodated in the accommodation hole 11c so as to demarcate a circulation space R1 communicating with the inflow opening 11a and the outflow opening 11b. The plug 13 holds the case 12 inside the accommodation hole 11c, and seals the opening of the accommodation hole 11c in a liquid-tight manner. The communication passage 14 communicates with the circulation space R1 and an internal space R2 of the case 12, and circulates a portion of a fluid circulating in the circulation space R1 to the internal space R2. The bladder 15 is arranged in the internal space R2 of the case 12, and dampens pulsation. The bladder 15 is accommodated in the case 12, so it is possible to prevent the bladder 15 from contacting the corner parts and the like of the housing 11 and being damaged.
Inventors:
NISHIJIMA TAKURO (JP)
Application Number:
PCT/JP2017/042173
Publication Date:
May 31, 2018
Filing Date:
November 24, 2017
Export Citation:
Assignee:
ADVICS CO LTD (JP)
International Classes:
F16L55/05; B60T8/48; B60T17/04; F16J3/02
Foreign References:
| JPS50125119U | 1975-10-14 | |||
| JP2000249018A | 2000-09-12 | |||
| JP2001310730A | 2001-11-06 | |||
| JPH03213702A | 1991-09-19 | |||
| JP2016003007A | 2016-01-12 | |||
| JPH0589901U | 1993-12-07 | |||
| JPH11508854A | 1999-08-03 | |||
| JP2003534500A | 2003-11-18 | |||
| DE102012223020A1 | 2014-06-18 | |||
| US20110108148A1 | 2011-05-12 |
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