IP Library › Patent Application 12223911
Patent Application
App. No. 12/223,911

Piezoelectric Device

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Quick Facts
Patent No.
US None
App. No.
12/223,911
Abstract

A piezoelectric device comprising a device body bearing encapsulation means to protectively encapsulate the device body wherein the encapsulation means includes an ion exchange membrane.

Claims (18)

1 . A piezoelectric device comprising a device body bearing encapsulation means to protectively encapsulate the device body, wherein the encapsulation means includes an ion exchange membrane.

2 . The piezoelectric device of claim 1 , wherein the ion exchange membrane is selected to be reactive to cations.

3 . The piezoelectric device of claim 1 , wherein the ion exchange membrane is selected to be reactive to anions.

4 . The piezoelectric device of claim 1 , wherein the ion exchange membrane is a bipolar membrane.

5 . The piezoelectric device of claim 4 , wherein the bipolar membrane comprises laminated first and second unipolar membranes which sandwich an inert intermediate layer.

6 . The piezoelectric device of claim 1 , wherein the ion exchange membrane is homogenous.

7 . The piezoelectric device of claim 1 , wherein the ion exchange membrane is heterogeneous.

8 . The piezoelectric device of claim 1 , wherein the encapsulation means further includes a polymeric insulating layer outwardly adjacent the ionic exchange membrane.

9 . A fuel injector comprising an injector body and a piezoelectric device according to claim 1 .

10 . A fuel injector comprising an injector body and a piezoelectric device, wherein the piezoelectric device comprises:

a device body bearing encapsulation means to protectively encapsulate the device body, wherein the encapsulation means includes an ion exchange membrane.

11 . The fuel injector of claim 10 , wherein the ion exchange membrane is selected to be reactive to cations.

12 . The fuel injector of claim 10 , wherein the ion exchange membrane is selected to be reactive to anions.

13 . The fuel injector of claim 10 , wherein the ion exchange membrane is a bipolar membrane.

14 . The fuel injector of claim 13 , wherein the bipolar membrane comprises laminated first and second unipolar membranes which sandwich an inert intermediate layer.

15 . The fuel injector of claim 10 , wherein the ion exchange membrane is homogenous.

16 . The fuel injector of claim 10 , wherein the ion exchange membrane is heterogeneous.

17 . The fuel injector of claim 10 , wherein the encapsulation means further includes a polymeric insulating layer outwardly adjacent the ionic exchange membrane ( 30 a ).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2010
From: DELPHI TECHNOLOGIES, INC.
To: DELPHI TECHNOLOGIES HOLDING S.ARL
Reel/Frame 024233/0854 →