Vibration responsive mounting arrangement for automotive engine
AssigneeNissan Motor Co., Ltd.
InventorsAkira Kimura, Masao Ishihama, Toshiro Abe, Kiyoshi Shimada, Shinichi Matsui
Life of this patent
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Abstract
An arrangement wherein a valve or valves, which are either manually or automatically controlled, control the amount of hydraulic fluid discharged from a belt driven pulsation pump and forced into and out of a variable volume chamber arrangement which is connected in series with an elastomeric insulating member, whereby the desired vibration offsetting pressure pulsations may be produced in said chamber.
Claims13
A mounting arrangement for suspending a vibrating body on a base member comprising:
- an insulator supportingly interposed between said vibrating body and said base member;
- means defining a variable volume chamber, said variable volume chamber defining means being connected in series with said insulator;
- a a pulsation pump which produces pressure pulsations in a timed relationship with a predominant vibration of said vibrating body;
- a non-pressurized reservoir communicating with said pulsation pump;
- means fluidly interconnecting said pulsation pump and said variable volume chamber;
- and
- valve means in said fluidly interconnecting means for varying the amount of fluid fed into said variable volume chamber per pulsation produced by said pulsation pump.
A mounting arrangement for suspending a vibrating body on a base member comprising:
- an elastomeric member interposed between said vibrating body and said base member;
- a variable volume chamber formed within said elastomeric member;
- a source of hydraulic fluid pressure which source produces pressure pulsations in a timed relationship with a predominant vibration of said vibrating body, said source including a non-pressurized reservoir;
- a hollow strut interposed between said vibrating body and said elastomeric member, one end of said hollow strut being fixedly mounted to said vibrating body, and the other end of said strut being mounted to said insulator, said hollow strut defining means for fluidly interconnecting said source and said variable volume chamber;
- a flow restricting orifice fluidly interposed betwen said hollow strut and said variable volume chamber;
- and
- valve means in said hollow sturt for varying the amount of fluid fed into said variable volume chamber per pulsation.
A mounting arrangement for suspending a vibrating body on a base member comprising:
- an elastomeric member interposed between said vibrating body and said base member;
- a variable volume chamber formed within said elastomeric member;
- a source of hydraulic fluid under pressure which source produces pressure pulsations in a timed relationship with a predominant vibration of said vibrating body, said source including a non-pressurized reservoir;
- a hollow strut interposed between said vibrating body and said elastomeric member, one end of said hollow strut being fixedly mounted to said vibrating body, and the other end of said strut being mounted to said insulator, said hollow strut defining means for fluidly interconnecting said source and said variable volume chamber;
- and
- valve means in said hollow strut for varying the amount of fluid fed into said variable volume chamber per pulsation, said valve means including a first inlet orifice valve fluidly interposed between said strut and said source of fluid under pressure, and a second outlet orifice valve which is fluidly interposed between said strut and said non-pressurized reservoir, said first and second orifice valves being adjustable to vary the pressure of the fluid retained in said hollow strut.
Dependencies are inferred from the claim text.