Liquid pump including a gas accumulation area and rankine cycle device including a liquid pump

A liquid pump comprising:

• a casing;
• a feed pipe that brings liquid from outside the casing to inside the casing;
• a pump mechanism that is provided inside the casing, and that includes a suction hole through which the liquid is sucked in and a discharge hole through which the liquid sucked in via the suction hole is discharged;
• a suction space that is extended from an opening of the feed pipe to an inlet of the suction hole in the casing, and that connects a flow path formed by the feed pipe to the suction hole;
• a discharge space that is positioned on a side with an outlet of the discharge hole in the casing and that connects to the discharge hole;
• and
• a member that is provided on a line segment connecting the center of the opening at the end of the feed pipe on the side with the casing and a center of the inlet of the suction hole,
• wherein the suction space includes a gas accumulation area that is positioned above a center of the opening of the feed pipe on a side with the casing, in a cross section view of the liquid pump, and that accumulates gas brought into the casing through the feed pipe together with the liquid to separate the gas from the liquid,
• the suction space includes a reservoir area that holds the liquid, and
• the end of the feed pipe on the side with the casing is positioned at a height of the inlet of the suction hole or above the inlet of the suction hole, in the cross section view of the liquid pump.