Frequency sensitive suspension system fluid damper
Abstract
Abstract A FREQUENCY SENSITIVE FLUID DAMPER FOR A VEHICLE SUSPENSION SYSTEM IS DESCRIBED. THE DAMPER RESPONDS TO RELATIVELY HIGH FREQUENCY WHEEL MOVEMENTS WITH A RELATIVELY LOW DEGREE OF DAMPING AND TO RELATIVELY LOW FREQUENCY BODY MOVEMENTS WITH A HIGHER DEGREE OF DAMPING. THE DAMPER MAY INCLUDE A HOUSING HAVING A PAIR OF CYLINDERS WITH MOVABLE PISTONS SIMULTANEOUSLY ACTUATED BY A LEVER ARM ATTACHED TO THE WHEEL CARRIERS. THE CYLINDERS ARE FLUIDLY CONNECTED TO A VALVE HAVING A SPOOL WHICH RESPONDS TO LOW FREQUENCY MOVEMENTS, BUT WHICH DOES NOT FOLLOW HIGH FREQUENCY MOVEMENTS. CHANGE IN THE VALVE SPOOL POSITION CHANGES THE AMOUNT OF RESTRICTION TO FLUID FLOW FROM ONE CYLINDER TO THE OTHER. THE AMOUNT OF RESTRICTION DETERMINES THE DEGREE OF DAMPING. MOTION IS TRANSMITTED TO THE VALVE SPOOL THROUGH RESILIENT MEANS LINKED TO THE LEVER ARM. THE VALVE BODY MAY BE MADE MOVABLE WITHIN THE HOUSING TO ADJUST FOR VARIATIONS IN VEHICLE LOADING.
Inventors
- 👤 Raymond M Richardson
Bibliographic Details
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