Patent ID: 8042498

Claim:
A superheated steam generator, comprising an introduction section for introducing saturated steam, a heating section for heating the saturated steam and making it to become a superheated steam in which a plurality of conductive pipe members are disposed in parallel with each other, the hollow portions of the plurality of the pipe members are arranged as steam flow passages, and the pipe members themselves are caused to also act as inductively heated elements, a discharge section for discharging the superheated steam, and an induction coil wound around the heating section, wherein turbulent steam flow generating means is disposed in each of the steam flow passages of the heating section to accelerate transfer of heat from the pipe members to the steam in the pipe members and generates much turbulence near to the discharge section, wherein the turbulent flow generating means is a zigzag bent member disposed in the steam flow passage of the heating section, and a zigzag bending pitch of the bent member changes from rough to minute from the introduction section to the discharge section; wherein a winding density of the induction coil changes from rough to minute from the introduction section to the discharge section.