Abstract: An injection-molded body according to the present invention includes a tubular body portion, an airtight seal surface formed on a peripheral surface of the body portion near one end of the body portion, and a plurality of undercuts disposed at positions around the peripheral surface of the body portion that are closer to the end than the airtight seal surface is. The undercuts prevent a seal member mounted on the airtight seal surface from falling off, in which a clearance is formed between a peripheral wall and the undercuts. The peripheral wall defines an inner hole of the body portion, and the clearance accommodates deformation of the undercuts in radial directions.

Abstract: An injection-molded body according to the present invention includes a tubular body portion, an airtight seal surface formed on a peripheral surface of the body portion near one end of the body portion, and a plurality of undercuts disposed at positions around the peripheral surface of the body portion that are closer to the end than the airtight seal surface is. The undercuts prevent a seal member mounted on the airtight seal surface from falling off, in which a clearance is formed between a peripheral wall and the undercuts. The peripheral wall defines an inner hole of the body portion, and the clearance accommodates deformation of the undercuts in radial directions.

Abstract: A Pb-free solder alloy and a soldered bond using the same, in which the solder alloy has no harmful environmental effect but has a solderability comparable to that of the conventional Pb—Sn solder alloy. The solder alloy of the present invention either consists of Zn: 3.0-14.0 wt %, Al: 0.0020-0.0080 wt %, and the balance of Sn and unavoidable impurities or consists of Zn: 3.0-14.0 wt %, Bi: 3.0-6.0 wt %, Al: 0.0020-0.0100 wt %, and the balance of Sn and unavoidable impurities. The soldered bond of the present invention consists of either of the present inventive solder alloys.

Abstract: The present disclosure concerns a thermally controlled valve, such as may be installed in the cooling water system of internal combustion engines. The thermally controlled valve eliminates thermal hunting as the temperature of the cooling water increases by restricting the initial flow of cooling water. Subsequently, additional cooling water flow is permitted as the temperature of the cooling water further increases.