Flexible fluid connection for evaporative emissions system
A leak detection module (LDM) includes a housing that provides a cavity that is enclosed by a wall that has a hole. A valve is arranged within the housing and in fluid communication along a passage that extends between first and second ports on the LDM, the valve is movable between open and closed positions. A pump is arranged within the housing and in fluid communication with the passage. A fluid fitting extends through the hole and has a passageway that extends between first and second end portions. The passageway is in fluid communication with the pump, the fluid fitting provides one of the first and second ports. A fastener secures the fluid fitting to the wall.
1 . A leak detection module (LDM) comprising:
a housing providing a cavity enclosed by a wall having a hole;
a valve arranged within the housing and in fluid communication along a passage that extends between first and second ports on the LDM, the valve movable between open and closed positions;
a pump arranged within the housing and in fluid communication with the passage, and an electric motor arranged in the housing for rotational driving the pump;
a fluid fitting extending through the hole and having a passageway extending between first and second end portions, the passageway in fluid communication with the pump, the fluid fitting is arranged at an angular orientation and provides one of the first and second ports;
a canister valve solenoid (CVS) arranged within the housing and in fluid communication along the passage, the CVS movable between open and closed positions;
an electrical connector provided by the housing and in electrical communication with the electric motor and the CVS; and
a fastener securing the fluid fitting in the angular orientation relative to the wall.
2 . The LDM of claim 1 , wherein the wall has first and second sides opposite one another, the first end portion has a flange against the first side, the fastener is secured to the second end portion adjacent the second side clamping the fluid fitting to the wall.
3 . The LDM of claim 1 , wherein the wall has first and second sides opposite one another, the first end portion has a flange against the first side, the fastener secures the flange to the first side.
4 . The LDM of claim 3 , wherein the fastener is a weld.
5 . The LDM of claim 2 , comprising a seal arranged about the second end portion and between the fastener and the second side.
6 . The LDM of claim 5 , wherein the fastener includes a collar extending from the fastener toward the second side, and the seal is arranged inboard from the collar.
7 . The LDM of claim 1 , wherein the fastener includes threads.
8 . The LDM of claim 7 , wherein the threads are provided by a multi-start thread configuration.
9 . An evaporative emissions system comprising the LDM of claim 1 , comprising a connector attached to the second portion and fluidly connected to another portion of the system.
10 . The LDM of claim 9 , wherein the other portion is a charcoal canister.
11 . The LDM of claim 3 , wherein the flange is affixed to the first side.
12 . The LDM of claim 4 , comprising a second fastener, wherein the second fastener includes threads.
13 . The LDM of claim 12 , comprising a seal arranged about the second end portion and between the second fastener and the second side.
14 . The LDM of claim 13 , wherein the second fastener includes a collar extending from the second fastener toward the second side, and the seal is arranged inboard from the collar.
15 . The LDM of claim 12 , wherein the threads are provided by a multi-start thread configuration.
16 . The LDM of claim 1 , wherein the fitting has a bend such that the passageway is non-linear, the angular orientation corresponding to a position of the one of the first and second ports resulting from the bend.