公开(公告)号：US09291136B2

公开(公告)日：2016-03-22

申请号：US14104144

申请日：2013-12-12

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Jason C. Short ,  John K. Isenberg ,  Bradley H. Carter ,  Cynthia J. Baron ,  Scott A. Williams ,  Otto Muller-Girard, Jr.

IPC: F02M53/06

CPC classification number: F02M53/06

Abstract: A fuel injector wherein a cylindrical surface supports an electrical heating structure covering 360° or almost 360° of the surface for heating fuel. The structure comprises a first dielectric layer adhered to the surface; a thick film resistance heating element; a second dielectric layer; spaced-apart first and second conductor pads, wherein the first conductor pad is disposed in contact with a dielectric layer and a first end of the heating element, and wherein the second conductor pad is disposed in contact with a dielectric layer and a second end of the heating element. Another dielectric layer may be disposed over the preceding layers and the first and second conductor pads and having first and second windows formed therein for access to the first and second conductor pads. The resistance heating element may selectively be trimmed by overprinting in a pattern one or more times to improve the uniformity of heating.

Abstract translation: 一种燃料喷射器，其中圆柱形表面支撑覆盖表面360°或几乎360°以加热燃料的电加热结构。 该结构包括附着在该表面上的第一介电层; 厚膜电阻加热元件; 第二电介质层; 间隔开的第一和第二导体焊盘，其中第一导体焊盘设置成与电介质层和加热元件的第一端接触，并且其中第二导体焊盘设置成与电介质层接触，第二导体焊盘的第二端 加热元件。 另外的电介质层可以设置在先前的层和第一和第二导体焊盘之上，并且具有形成在其中的第一和第二窗口用于接近第一和第二导体焊盘。 电阻加热元件可以通过以图案重叠一次或多次来选择性地修整，以提高加热的均匀性。