摘要:
A four-level regulator for fluid-operated air conditioning systems, comprising a casing containing three electrical switches, said switches including respective fixed contacts and respective movable contacts, each of these including a slidable push-rod for causing a respective movable contact to move by the action of a respective substantially cap-shaped elastic member, said elastic members being definable between an inwardly-turned rest configuration and an outwardly-turned configuration, between the fluid and the switches there being provided an elastically deformable diaphragm, wherein one of said elastic members and the push-rod connected to it are holed, there being provided a further fourth switch including a push-rod inserted through the holed elastic member and through the holed push-rod, and operated by a respective fourth cap-shaped elastic member.
摘要:
An electrical indicator for indicating the fuel content of a motor-vehicle tank comprises an elongate container (2) having a length corresponding substantially to the depth of the tank, intended to be arranged vertically in the tank, and an elongate float (22) slidable axially in the container (2). A rheostat including a resistor (31) and a slider (32) which cooperate with each other enables an electrical signal indicative of the fuel level in the tank to be provided. Axial biasing means are also provided for urging the float (22) towards the bottom (5) of the container (2) and are not interposed between the float (22) and the top (9) of the tank (2).
摘要:
An apparatus is proposed for indicating the level of fuel or other liquid contained in a tank. The apparatus consists of a cylindrical casing closed at its two ends by two suitably shaped disc-like covers, and internally comprising two guides on which there slides a float provided with a slot within which there is engaged a rod having its ends connected to a rotary moving element which comprises on its top a contact which slides along a resistor installed on the upper disc-like cover of the cylindrical casing. As the height of the float varies within the cylindrical casing, which is suitably holed to allow the liquid to enter or leave, the position of contact along the resistor varies with corresponding variation in the electrical signal measured at its output.