Abstract: A heating system of the heat pump type is disclosed in which the outside coil, employed to reject heat in air conditioning mode or to absorb heat in heating mode, is supplied with heat independently of that provided by ambient air when the efficiency of the system falls off due to low ambient air temperature. The amount of heat thus supplied is controlled to increase the efficiency of the system sufficiently to produce a significant net decrease in operating cost. In a conventional system, the outside air coil-cooling fan is turned off and augmenting heat is supplied to the coil when the ambient air temperature is moderate (e.g., 32.degree.-38.degree. F.) for the system, and the augmenting heat is supplied at a rate which is at least sufficient to restore the efficiency of the system to that inherent with a much higher ambient air temperature. At the same time, the outside coil temperature is monitored and the augmenting heat is temporarily discontinued when the coil temperature reaches a selected value (e.g.

Abstract: A horizontal type vibrating compressor having a cylindrical container for accommodating a compressor proper which is disposed horizontally, and closure members for closing both open ends of the cylindrical container; and having such a construction that a piston fixed to a driving coil is caused to vibrate in substantially horizontal direction in a cylinder, wherein coil springs are respectively interposed in the compressed state between each closure member and the compressor proper; cushioning members are fixed via cup-shaped holders to any one side of the compressor proper or the closure members; pin-shaped supporting members, which are adapted to be axially slidable by engaging with the cylindrical portion of the cushioning members are fixed to the other side of the compressor proper or the closure members; and an air/oil intake tube connecting the outside and inside of the compressor proper is provided, the outer end thereof being connected to a fiber braided tube disposed on the lower inside part of the c

Abstract: An automotive air conditioning apparatus is provided which, in raising the temperature inside a vehicle cabin from a low level to a preset higher level in a maximum cooling mode or in lowering the cabin temperature from a high level to a preset lower level in a maximum heating mode, suitably controls in an initial stage of the procedure the revolution speed of a blower but does not drive an air mix door at all to keep it at an existing opening degree. When the revolution speed of the blower reaches a predetermined lowest speed, the air mix door begins to be driven to vary its opening degree progressively and suitably while, at the same time, a first reference temperature level for deactivating a compressor associated with a cooler is shifted to a second reference temperature level.

Abstract: This disclosure is directed to a heat exchanger housing which includes an upstanding peripheral wall terminating in an upper peripheral terminal edge spanned by a cover and having disposed thereat an air-restricting baffle for restricting the flow of ambient air into the housing through a space between the cover and the upstanding peripheral wall to reduce the possibility of an open flame being blown out by high air movement exteriorly of the housing when the heat exchanger is operating under its heat-augmented mode of operation, the housing further including an upper transversely disposed generally Z-shaped supporting bar to support the cover in overlying spaced relationship to the housing peripheral wall.

Abstract: An electric pump assembly (1) for lifting fluids in wells comprises a plurality of electric pumps (20) and (24) located at axially spaced apart locations in the well each pump having an axial aperture (21) to permit wire line operations to be conducted in the well below the assembly (1). Adjacent pumps (20) and (24) can rotate in opposite directions about a common axis to effect torque balancing. Each pump (20) can have a transformer (50) to permit local adjustment of voltage and means (40) are provided for sequential operation of the pumps. Assembly can be supported on cable (12), (14) or on production tubing (60) assisted by packers.

Abstract: A thermostat with a single control to establish the quantity of set back during heating and set up during cooling.

Abstract: The disclosure illustrates and describes a heat exchanger arrangement including a plurality of individual heat exchanger assemblies, each including a fin pack confined between a pair of end plates having a plurality of openings formed therein, a plurality of tubes extended through the openings, and a plurality of end segments interconnecting adjacent pairs of tubes of each heat exchanger assembly. The plurality of individual heat exchanger assemblies are arranged as a predetermined number of adjacent pairs, and connector means serve to interconnect adjacent outer corners of each adjacent pair of assemblies during assembly and/or shipping.

Abstract: A pump has an inlet, an outlet, and a fluid displacement mechanism operable to pump fluid from the inlet to the outlet. A cheek plate in the pump is movable to control a flow of fluid from the outlet back to the inlet and thereby to vary the fluid flow to a hydraulic system supplied by the pump. Acting on different and unequal surface areas of the cheek plate are two fluid pressure forces. One fluid pressure force is provided by fluid pressure in a cheek plate control chamber. The force acts with a spring biasing force to bias the cheek plate into a position blocking the flow of fluid from the outlet back to the inlet. The second fluid pressure force acts on the cheek plate against the spring force and the first fluid pressure force. A first orifice communicates the pump outlet with the hydraulic system, a second orifice communicates the system with the control chamber, and a third orifice communicates the control chamber with the pump inlet.

Abstract: A solar powered liquid metering device is disclosed including a solar chamber sealed from atmospheric pressure and partialy filled with a liquid to be metered. Trapped within the device above the liquid is an expansible gas. Also included is an overflow chamber partially filled with the liquid and coupled to the solar chamber to allow fluid communication between the two bodies of liquid. An overflow pipe has an end located within the overflow chamber. When the gas expands due to solar heating liquid is forced from the solar chamber into the overflow chamber and then out the overflow pipe. Various mechanisms are described to keep the liquid level within the overflow chamber no lower than the lip of the overflow pipe.

Abstract: The invention relates to a small, efficient hermetic compressor for refrigeration wherein reduction in size and minimization of parts is emphasized. The motor compressor unit is mounted within a sealed outer housing and comprises a cast crankcase, which is connected to the stator of the electrical motor by means of only three connecting screws that extend through the stator and are threadedly received in sockets in the downwardly depending legs of the crankcase. The crankshaft is pressed into the motor rotor and is journaled within the crankcase for rotation about a vertical axis. The crankcase includes a slot extending into the cylinder so that the connecting rod can be inserted laterally into the cylinder at the same time that it is slipped over the end of the crankshaft, and the wrist pin is then inserted through the same slot, through the piston and connecting rod, and is held in place by a spring clip.

Abstract: An internal combustion engine has a rotor and a vane extending slidably through the rotor in a transverse direction for rotation therewith. The vane has opposite ends extendable beyond the rotor. A stator has a hollow, cylindrical interior. The rotor is rotatably received within the interior. The stator has opposite side walls with circumferentially extending depressions therein. The depressions are shaped to slidably receive the ends of the vane in sealing contact. The depressions of the opposite walls are staggered, causing transverse reciprocation of the vane as the rotor is rotated.

Abstract: A power control method and apparatus for a Stirling engine including a valved duct connected to the junction of the regenerator and the cooler and running to a bypass chamber connected between the heater and the cylinder. An oscillating zone of demarcation between the hot and cold portions of the working gas is established in the bypass chamber, and the engine pistons and cylinders can run cold.

Abstract: A coupling system for detachably coupling an outlet port of a submergible pump to an inlet port of a discharge conduit is constructed by a single guide rail having at least two, and preferably, two guide portions extending along the length thereof, the rail being fixed at its lower end to the conduit; an arm attached to the pump so that it is guided by the rail; and first and second engaging means provided in the discharge conduit adjacent the inlet port and in the arm respectively so that the pump is held stationary when the pump is lowered and both the engaging means engage with each other. The whole system is made compact by arranging the orientation of the guide rail particularly when it is made of an angle bar. Also, further consideration is given to effect a line contact between the first and second engaging means to reduce the severe manufacturing tolerance necessary to achieve a satisfactory coupling between the inlet and outlet ports.

Abstract: The impeller bearings in a turbocharger on an internal combustion engine are supplied with a coolant, in the form of lubricating oil from the engine's crankcase, during post-shutdown coasting of the impeller. This coolant is supplied by an accumulator including a piston having an upstream side which is subjected to oil under pressure from the crankcase during engine operation to move the piston downstream for loading a spring affixed to the downstream side of the piston. Coolant leaking downstream of the piston is returned to the crankcase through a valve seat which is closed during engine operation by a valve extending from the downstream side of the piston.

Abstract: Disclosed is a solderable stake for attaching a heat sink to a mounting board such as a circuit board or the like. The stake is a unitary body having a shank supporting a transverse base with parallel spaced apart fingers extending from the base cooperating with the base to define a channel. The stake body is tin-plated. The edge of the heat sink is inserted into the channel between the fingers and retained therein by the spring-clip action of the fingers. The assembly may be attached to the circuit board by conventional soldering simultaneously with soldering of other component leads and the like.

Abstract: A gas turbine engine pod installation comprises a core engine with a stiff carcase from which the engine is supported from a pylon. The core engine drives a fan which operates within a fan casing extending to downstream of the core engine nozzle so that the core and fan flows are mixed to provide propulsive thrust when they exit from the fan duct nozzle. The fan casing is supported from the core engine carcase by forward and rearward supports so that these supports, the fan casing and the carcase form a stiff loop of structure which supports and stiffens the carcase.