Abstract: A pumping system and a pumping method implemented with the pumping system. The pumping system comprises a solar panel performing a photovoltaic conversion based on an insolation level including a first insolation level and a second insolation level; a fuel reservoir containing a fuel in a liquid state; an electric motor; a pump rotatable by the electric motor to pump the fuel; and a first motor drive converting electrical energy supplied by the solar panel to drive the electric motor at a first speed when the insolation level is at the first insolation level and at a second speed, slower than the first speed, when the insolation level is at the second insolation level, thereby pumping the fuel at a first rate and a second rate, respectively.

Abstract: A pumping system and a pumping method implemented with the pumping system. The pumping system comprises a solar panel performing a photovoltaic conversion based on an insolation level including a first insolation level and a second insolation level; a fuel reservoir containing a fuel in a liquid state; an electric motor; a pump rotatable by the electric motor to pump the fuel; and a first motor drive converting electrical energy supplied by the solar panel to drive the electric motor at a first speed when the insolation level is at the first insolation level and at a second speed, slower than the first speed, when the insolation level is at the second insolation level, thereby pumping the fuel at a first rate and a second rate, respectively.

Abstract: A multicylinder reciprocating internal combustion engine with a dual induction system having at least one exhaust poppet valve and a single intake poppet valve for each cylinder, with the intake valve being located so as to control the flow of charge into the cylinder. Each intake port has a vertical wall dividing the port into primary and secondary passages, with the primary passages being oriented so as to cause rotational flow about the outermost portion of the cylinder, and with the secondary passages being oriented so as to cause flow directed about a radially inward portion of the cylinder. Low-speed and high-speed intake runners extend from an intake plenum to the primary and secondary intake port passages.