Injector water intrusion seal with blow out volume

Patent metadata

Field	Value
Publication number	US-9366167-B2
Application number	US-201414509216-A
Country	US
Kind code	B2
Filing date	Oct 8, 2014
Priority date	Nov 8, 2013
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A fluid injector includes a housing and an inlet tube having a portion received in the housing. A primary seal creates a seal between surfaces of the housing, the inlet tube, and an inlet of the injector. A groove is in the housing and a secondary seal is in the groove to defining a seal between the housing and a portion of the inlet of the injector. A recessed portion is defined in the housing and is in communication with the groove. The recessed portion defines a blow-out volume such that when the primary seal is leak tested, an indication of a leak of the primary seal can be detected when the pressurized air moves past the primary seal and forces a portion of the secondary seal to an unsealed position into the blow-out volume.

First claim

What is claimed is:

1. A fluid injector comprising:
a housing;
an inlet tube having a portion received in the housing, the inlet tube having an opened end for receiving fluid from an inlet defined by an inlet cup assembly of the injector;
a primary seal disposed about a portion of the inlet tube so as to create a seal between surfaces of the housing, the inlet tube, and the inlet cup assembly of the injector;
a groove defined in a periphery of the housing;
a secondary seal…

Assignees

• Continental Automotive Systems

Inventors

• Mcfarland Robert W

Classifications

• F02M61/168

  Mechanical Engineering · mapped topic

• F02M55/005

  Mechanical Engineering · mapped topic

• F02M65/006 Primary

  Mechanical Engineering · mapped topic

• Y10T29/494

  Cross-Sectional Technologies · mapped topic

• F01N2610/1453

  Mechanical Engineering · mapped topic