LIQUID COMPOSITION FOR VIBRATION-PROOFING DEVICE AND ADAPTIVE HYDRAULIC TYPE VIBRATION-PROOFING DEVICE

• Main Authors: GOMI YOSHIAKI, KAWAMO TETSUJI, KAMIHIRA MASAYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 09.11.2015
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To restrict occurrence of cavitation in encapsulated working fluid in an adaptive hydraulic type vibration-proofing device and prevent occurrence of irregular noise or shock accompanied by collapse of cavitation.SOLUTION: This invention provides liquid composition for vibration-proofing device including annular chemical compound (A) expressed by the following general formula (1) (in the general formula (1), X denotes a kind of functional group of any of ester group, carbonate group, N-substituted alkyl amide group, N,N'-disubstituted alkyl urea group, sulfoxide group, and R denotes hydrogen atom or methyl group. (m) and (n) denote natural number selected in such a way that m+n becomes a value ranging 2 to 6. 【課題】液体封入式防振装置において、封入された作動液中のキャビテーションの発生を抑制し、キャビテーションの崩壊に伴う異音や衝撃の発生を防止すること。【解決手段】下記一般式（１）で表わされる環状化合物（Ａ）を含むことを特徴とする防振装置用液体組成物（一般式（１）中、Ｘは、エステル基、カーボネート基、Ｎ−置換アルキルアミド基、Ｎ，Ｎ'−ジ置換アルキルウレア基、スルホキシド基のいずれか１種の官能基である。Ｒは、水素原子又はメチル基である。ｍ及びｎは、ｍ＋ｎが２〜６の範囲になるように選ばれる自然数である。）【選択図】図１