초록

In other words, the transfer valve 88 is centrally disposed relative to the diaphragms 20 and 28, i.e., on an axis extending transversely and centrally of the diaphragms 20 and 28.

대표청구항 ▼

[ What is claimed is:] [20.] A fluid actuated fuel pump assembly comprising;a first flexible diaphragm (20) defining a first pulse chamber (22) and a first pumping chamber (24),a fuel intake passage (48) for admitting fuel into said first pumping chamber (24) as said first diaphragm (20) moves to va

[ What is claimed is:] [20.] A fluid actuated fuel pump assembly comprising;a first flexible diaphragm (20) defining a first pulse chamber (22) and a first pumping chamber (24),a fuel intake passage (48) for admitting fuel into said first pumping chamber (24) as said first diaphragm (20) moves to vary the volume of said first pumping chamber (24),a second flexible diaphragm (28) parallel to said first diaphragm (20) and defining a second pumping chamber (30) and a second pulse chamber (32),a fuel outlet passage for conveying fuel from said second pumping chamber (30) as said second diaphragm (28) moves to vary the volume of said second pumping chamber (30),first pressure inlet (42) communicating with said first pulse chamber (22) and adapted for connection to a first source of regularly cycling pressure pulses to move said first diaphragm (20),a fuel transfer valve (88) through which fuel is pumped from said first pumping chamber (24) to said second pumping chamber (30) in response to said first diaphragm (20) being moved,said assembly characterized by said transfer valve (88) being disposed between and in alignment with the center of said pressure chambers (24 and 30).