| abstract |
And a step of press-fitting the second valve 27 to the valve shaft 29 to which the first valve 25 is press-fitted while measuring the distance L2 so as to be equal to the distance L1, and the valve shaft 29. The first valve 25 and the second valve 27 are press-fitted, caulked and fixed to each other, and oil is interposed between the press-fitting portions. When a component such as the first valve 25 is a sintered component, the oil contained in the sintered component itself is used to increase the clamping force of the press-fitting portion.n n n n Valve, gas flow rate, control, double valve |