Abstract: A connector is provided for a small diameter pipe that has been formed to include an annular swelled part near the end of the pipe. The connector includes a body with a communication hole extending axially therethrough. A chamber extends axially into one end and joins the communication hole. A window is formed through portions of the connector body defining the chamber, and a pawl extends across the window. The pawl includes a central portion that projects into the chamber. The pawl is configured to engage the annular swelled part of the pipe for holding the pipe in the connector body. The connector further includes a releasing member rotatably mounted around the connector body in proximity to the pawl. Outer circumferential portions of the releasing member define a cam wall configured such that rotation of the releasing member into a selected rotational orientation will deflect the pawl outwardly to enable release of the pipe.

Abstract: A hydraulic fan coupling comprises a hermetically sealed case that is driven by the engine. The case is made of metal. Fan blades made of resin are molded onto elongated outer portions of the case.

Abstract: A temperature-responsive fluid-type fan coupling has a sealing casing with a partition plate disposed therein. The partition plate divides interior portions of the casing into an oil reservoir chamber and a torque transmission chamber. A port extends through the partition plate to provide communication between the chambers. The casing is rotatably mounted around a rotary shaft such that an end of the shaft is disposed in the torque transmission chamber. A drive disc is fixedly mounted to the shaft and is disposed in the torque transmission chamber. Fluid in the torque transmission chamber functions to transmit torque from the disc to the casing. The valve member has one end mounted to the partition plate and an opposed end movably positioned in proximity to the port through the partition plate. Intermediate portions of the valve member are engaged by a pin, which in turn is movable in response to a temperature-responsive member. The valve member is biased to instantaneously open and close at set temperatures.