1. An inline cavity hydraulic resonator (100) for noise and vibration reduction in vehicle steering systems comprising: a hydraulic conduit (102) configured to carry pressurized hydraulic fluid; a cavity resonator (100) connected to the hydraulic conduit (102) and arranged inline or through a branch connection, wherein the cavity resonator (100) comprises an enclosed cavity (108) having a wide, neckless inlet opening directly exposed to pressure fluctuations in the hydraulic conduit (102), wherein the enclosed cavity (108) is dimensioned and tuned to correspond to a dominant pressure pulsation frequency of a hydraulic system, wherein when pressure pulsation waves propagate through the hydraulic conduit (102) and enter the cavity resonator (100), the hydraulic fluid within the cavity undergoes oscillatory motion that generates pressure waves out of phase with the incoming pulsation waves to cause destructive interference and results in a significant reduction of pulsation amplitude, vibration,

Description:INLINE CAVITY HYDRAULIC RESONATOR FOR NOISE AND VIBRATION REDUCTION IN VEHICLE STEERING SYSTEMS

FIELD OF THE DISCLOSURE
[0001] The present invention relates generally to the field of fluid power and hydraulic systems, and more particularly to an inline cavity hydraulic resonator for noise and vibration reduction in vehicle steering systems.
BACKGROUND OF THE INVENTION

[0002] The subject matter discussed in the background section should not be assumed to be prior art merely as a result of its mention in the background section. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also correspond to implementations of the claimed technology.
[0003] In typical hydraulic steering systems, a steering pump delivers pressurized fluid in a pulsating manner , C , Claims:I/We claim,
1. An inline cavity hydraulic resonator (100) for noise and vibration reduction in vehicle steering systems comprising:
a hydraulic conduit (102) configured to carry pressurized hydraulic fluid;
a cavity resonator (100) connected to the hydraulic conduit (102) and arranged inline or through a branch connection,
wherein the cavity resonator (100) comprises an enclosed cavity (108) having a wide, neckless inlet opening directly exposed to pressure fluctuations in the hydraulic conduit (102),
wherein the enclosed cavity (108) is dimensioned and tuned to correspond to a dominant pressure pulsation frequency of a hydraulic system,
wherein when pressure pulsation waves propagate through the hydraulic conduit (102) and enter the cavity resonator (100), the hydraulic fluid within the cavity undergoes oscillatory motion that generates pressure waves out of phase with the incoming pulsation waves to cause destructive interference and results in a significant reduction of pulsation amplitude, vibration,