Patent ID: 9091323
Filing Date: 2015-07-28
Classification: F16F,Y10T

Abstract:
1. An orifice plate apparatus in an engine mount filled with magnetorheological (MR) fluid, the orifice plate apparatus comprising, a coil assembly having a coil wound thereon and being annular in shape; a core assembly unit housing the coil assembly, formed in a discoid shape, and defining a flow path of which an upper passage is disposed in a top surface of the core assembly unit, and a lower passage is disposed in a bottom surface of the core assembly unit, wherein the flow path is formed along an annular perimeter of the coil assembly in a circumferential direction of the core assembly unit in the core assembly unit; and a flow path separator installed between the upper passage and the lower passage in the core assembly unit and continuously converting the flow path into an annular flow path along the annular perimeter of the coil assembly by diverting flow of the fluid into the annular flow path while the fluid contacts the flow path separator to prevent the fluid from flowing in a reverse direction such that a unidirectional annular circulation is enabled for the MR fluid in the core assembly unit, wherein the flow path includes at least two flow paths formed in two locations within the core assembly unit and fluidly-separated from each other, the at least two flow paths include: wherein the core assembly unit includes: