F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
310/38, 103/75
F02M 37/08 (2006.01) F04C 15/00 (2006.01)
Patent
CA 1230520
ABSTRACT OF THE DISCLOSURE One set of circumferentially juxtaposed axial surfaces of the motor magnets of a wet motor gerotor pump are separated circumferentially by a tunnel device having a central bridge portion radially just clearing the rotating armature and bounded by a pair of leg portions extending radially outwards from the central bridge portion to establish a substantially lami- nar flow path for the fuel. The tunnel device further spaces the armature relative to the gerotor pump cavity. A vent valve is provided in the outlet housing of the pump. A spring biases a ball valve against an imperfect seat encircling the inlet passage to provide a permanent vent bypass passage therebetween. The spring seats the ball valve against the imperfect seat to permit fuel vapors to vent through the vent outlet passage until liquid reaches the ball valve. The liquid then overcomes the bias of the spring to seat the ball against an outlet seat encircling the outlet passage to close the same.
469430
Facet Enterprises Inc.
Marks & Clerk
LandOfFree
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