Patent ID: 9366167
Filing Date: 2016-06-14
CPC Classification: F01N,F02M,Y10T

Claim Text:
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 disposed in the groove and defining a seal between the housing and a portion of the inlet cup assembly of the injector; and a recessed portion defined in the housing and in communication with the groove so that due to the recessed portion, an entirety of the secondary seal is not supported by the groove, wherein the recessed portion defines a blow-out volume such that when the primary seal is leak tested by forcing pressurized air through the inlet of the injector, 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 move to an unsealed position into the blow-out volume.