EXPANDER AND AIR REFRIGERATION DEVICE WITH THE SAME

摘要

According to one embodiment, an expander includes a piston provided reciprocatively in a first direction in a cylinder, a crankshaft, an XY-separation crank mechanism provided between the piston and the crankshaft, which converts a reciprocating motion of the piston and a rotary motion of the crankshaft into one another, a cylinder head including an intake port and an outlet port, a suction valve which opens/closes the intake port, a discharge valve which opens/closes the outlet port, an intake-side valve mechanism which opens/closes the suction valve and an outlet-side valve mechanism which opens/closes the discharge valve. At least one of the intake-side and outlet-side valve mechanisms includes an XY separation drive mechanism.

主权项

1. An expander comprising:
a piston provided reciprocatively in a first direction in a cylinder; a crankshaft extending to intersects perpendicularly a reference plane including a moving axis in the first direction of the piston; an XY-separation crank mechanism provided between the piston and the crankshaft, which converts a reciprocating motion of the piston and a rotary motion of the crankshaft into one another, the XY-separation crank mechanism comprising a support member reciprocative in the first direction, and a crank connection member provided reciprocatively on the support member in a second direction perpendicular to the first direction, to which a crank of the crankshaft is rotatably engaged, and a coupling member which couples the piston and the support member so as to reciprocate together with the piston and the support member in the first direction, a cylinder head provided on the cylinder to define a first expansion/compression chamber between the cylinder head and the piston, and including an intake port and an outlet port which communicate to the first expansion/compression chamber; a suction valve supported reciprocatively by the cylinder head in a third direction, which opens/closes the intake port a discharge valve supported reciprocatively by the cylinder head in a fourth direction, which opens/closes the outlet port; an intake-side valve mechanism which opens/closes the suction valve; and an outlet-side valve mechanism which opens/closes the discharge valve, wherein at least one of the intake-side valve mechanism and the outlet-side valve mechanism comprises an XY separation drive mechanism.