Magneto-rheological elastomeric fluid control armature assembly
First Claim
1. A self-actuating fluid check valve comprising:
- a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber;
a second valve body part defining a second portion of the fluid chamber; and
a one-piece armature comprising an elastomer matrix containing a dispersed particulate ferromagnetic filler, the one-piece armature being disposed across the fluid port and magnetically sealable against the permanent magnet element of the seat;
the one-piece armature and the permanent magnet element being configured to create a preselected magnetization offset pressure portion of a valve cracking pressure, wherein the valve cracking pressure includes no mechanically induced forces.
0 Assignments
0 Petitions
Accused Products
Abstract
A solenoid fluid control valve having a valve body containing a solenoid coil, a fluid channel, and a seat, each coaxially disposed about a central longitudinal axis of the body, and a one-piece armature of MRE material. The armature is disposed within the fluid channel and magnetically actuable to seal against the seat, with operation of the solenoid coil actuating the armature with respect to the seat to alter the closure state of a fluid port. Also, a fluid check valve having a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, with the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber. A one-piece armature of MRE material is disposed across the fluid port and magnetically sealable against the magnet element. The armature and magnet element are configured to create a preselected magnetization offset pressure portion of a valve cracking pressure.
44 Citations
16 Claims
-
1. A self-actuating fluid check valve comprising:
-
a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber; a second valve body part defining a second portion of the fluid chamber; and a one-piece armature comprising an elastomer matrix containing a dispersed particulate ferromagnetic filler, the one-piece armature being disposed across the fluid port and magnetically sealable against the permanent magnet element of the seat; the one-piece armature and the permanent magnet element being configured to create a preselected magnetization offset pressure portion of a valve cracking pressure, wherein the valve cracking pressure includes no mechanically induced forces. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A self-actuating fluid check valve comprising:
-
a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber; a second valve body part defining a second portion of the fluid chamber; and a one-piece armature comprising an elastomer matrix containing a dispersed particulate ferromagnetic filler, the one-piece armature being disposed across the fluid port and magnetically sealable against the permanent magnet element of the seat; the one-piece armature and the permanent magnet element being configured to create a preselected magnetization offset pressure portion of a valve cracking pressure, wherein the valve is an umbrella valve, and the one-piece armature is configured as an umbrella element having an umbrella stem, with the one-piece armature umbrella stem being secured across the fluid port through engagement of the fluid port with the umbrella stem. - View Dependent Claims (8, 9, 10)
-
-
11. A self-actuating fluid check valve comprising:
-
a first valve body part defining a seat, a fluid port, and a first portion of a fluid chamber, the seat including a permanent magnet element disposed adjacent the fluid port proximate the fluid chamber; a second valve body part defining a second portion of the fluid chamber; and a one-piece armature comprising an elastomer matrix containing a dispersed particulate ferromagnetic filler, the one-piece armature being disposed across the fluid port and magnetically sealable against the permanent magnet element of the seat; the one-piece armature and the permanent magnet element being configured to create a preselected magnetization offset pressure portion of a valve cracking pressure, wherein the valve cracking pressure consists essentially of the preselected magnetization offset pressure. - View Dependent Claims (12, 13, 14, 15, 16)
-
Specification