F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
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F02M 41/06 (2006.01) F02M 41/14 (2006.01) F02M 59/08 (2006.01) F02M 59/16 (2006.01) F02M 59/42 (2006.01) F02M 59/44 (2006.01)
Patent
CA 1056240
ABSTRACT OF THE DISCLOSURE A rotary distributor fuel injection pump is provided with a main high pressure pumping chamber and an auxiliary high pressure pumping chamber which have a common inlet and outlet passage. The pumping plungers in said pumping chambers operate in unison to generate simultaneous high pressure pulsed charges of fuel within the pumping chambers. Both pumping chambers are connected to deliver their high pressure outputs simultaneously to the output passage for delivery sequentially to each of the cylinders of an associated engine. A speed responsive valve con- trols the delivery of the output from the auxiliary pumping chamber to the common outlet passage and isolates the auxilliary chamber from the common inlet and outlet passage without impair- ing the connection of the main pumping chamber with the common inlet and outlet passage when engine speed reaches a predeter- mined level. A valving arrangement is provided to maintain the auxiliary pumping chamber in its isolated condition until the engine is essentially stopped.
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