ROTARY HEAT PUMP, AND AIR CONDITIONER AND AUTOMOBILE EQUIPPED WITH SAME

There is provided a rotary heat pump capable of realizing further miniaturization, compared with a current status. As means of solution, a rotary heat pump (100) includes: a rotary drive section (60) including: a rotary shaft (10); a stationary gear (15); a rotor (20) that has a rotor gear (24) engaged with the stationary gear (15) and that makes an eccentric rotation; a rotary housing (30) along a peritrochoid curve defined by the eccentric rotation of the rotor (20); and a first side housing (40) and a second side housing (50) that cover one end side and the other end side of the rotary housing (30) and that fix the stationary gear (15); a heat exchange fin (70) provided in each of a compression region (32) that is demarcated by the rotor (20) and the rotary housing (30) and that has a smallest planar area and an expansion region (34) that has the largest planar area; and a heat insulation portion (80) formed in a boundary portion between the compression region (32) and the expansion region (34).