Abstract: A compressor includes a non-orbiting scroll, an orbiting scroll, a driveshaft, a bearing housing and a bushing. The non-orbiting scroll includes a first spiral wrap. The orbiting scroll includes an end plate having a first side and a second side. The first side has a second spiral wrap that extends therefrom and meshingly engages with the first spiral wrap of the non-orbiting scroll. The second side has a hub extending therefrom. The driveshaft has a crankpin that is received in the hub and that drives the orbiting scroll. The bushing includes a first member and a second member. The first member is disposed within the hub of the orbiting scroll between the hub and the crankpin of the driveshaft. The second member extends radially from the first member and is disposed between the hub and the bearing housing.

Abstract: An air-conditioning apparatus, including a refrigerant circuit connecting a compressor, a heat source side heat exchanger, an expansion valve, and a use side heat exchanger in order with a refrigerant piping. A compressor heater is provided for heating the compressor when the compressor is not in operation. A compressor temperature sensor is provided for detecting a compressor temperature. A refrigerant temperature detection sensor is provided for detecting a refrigerant temperature in the compressor. A controller is configured to estimate an amount of liquid refrigerant in the compressor by integrating the temperature difference between the compressor temperature and the refrigerant temperature during a period in which the compressor temperature becomes lower than the refrigerant temperature, and control the heating operation, which is carried out by the compressor heater, on the basis of the estimated liquid refrigerant amount when the compressor is not in operation.

Abstract: According to the present invention, there is provided a wind driven machine with a furling system to move the machine to between an active position and an inactive position in response to a predetermined condition. The wind driven machine includes a propeller section and a tail section, the tail section hinged to the propeller section to direct the propeller section into the wind. The furling system includes a first portion to rotate with one of the respective sections and a second portion that is generally rotationally fixed and moves axially between an active position and an inactive position corresponding to the active and inactive positions of the wind driven machine.

Abstract: A system for actuation in an admission valve of a gas compressor including an admission valve being configured to allow the input of gas inside the cylinder upon the axial movement of the piston in a first axial direction; and a discharge valve configured to allow the output of gas from inside the cylinder upon the axial movement of the piston in a second axial direction opposite to the first axial direction. The system includes at least one actuator element, operatively associated with the admission valve, capable of keeping the admission valve open when the electric motor stops and starts-up. The actuator element is also capable of allowing opening and closing of the admission valve upon the regime of work of the electric motor. The present development also refers to refrigeration equipment which includes the above-mentioned gas compressor.

Abstract: A stability valve assembly includes a centrifugal pump and a valve downstream of the centrifugal pump. The valve includes a valve member that is movable along a valve axis within a valve body to control a fluid flow from the centrifugal pump. The valve member has a first orifice connecting a valve input to a valve chamber, and has at least one second orifice connecting a valve outlet to the valve chamber. A reference pressure upstream of the centrifugal pump applies pressure to a stepped portion of the valve member such that an amount of negative feedback provided by the valve assembly is proportional to a rotational speed of the centrifugal pump.

Abstract: This invention relates to a wind mill which is designed to convert rotational energy to mechanical energy to drive one or more pistons to raise a liquid such as water to an elevated location if necessary at a positive pressure. In addition, the present invention may be adapted to pressurize a medium, such as a gas, for storage in a reservoir.

Abstract: A two-chambered centrifugal blood pump for pumping biological fluids such as blood. One chamber is for pumping blood through the natural lungs, and a second chamber is for pumping blood through the remainder of the body. Each chamber has it's own inlet and outlet ports for attachment of tubing and cannulae. A small, adjustable clamp may alternatively be provided if minor adjustments of pressure to both the pulmonary and systemic circuits is required.

Abstract: A two-chambered centrifugal blood pump for pumping biological fluids such as blood. One chamber is for pumping blood through the natural lungs, and a second chamber is for pumping blood through the remainder of the body. Each chamber has it's own inlet and outlet ports for attachment of tubing and cannulae. A small, adjustable clamp may alternatively be provided if minor adjustments of pressure to both the pulmonary and systemic circuits is required.

Abstract: An air compressor system having an unloader valve which is directly mechanically activated by an air compressor motor's centrifugal mechanism to allow the motor to reach a predetermined speed before a load is applied is disclosed. The unloader valve is mounted directly on an end flange of the motor and communicates with an outlet conduit of the air compressor to allow the compressed air from the air compressor to vent to atmosphere until the motor reaches the predetermined speed.

Abstract: A compressor with a hypotrochoidal design is constructed in such fashion that its delivery can be varied in ways other than by the drive rpm alone. A controlling edge of an inlet opening that determines the beginning of compression has a variable angular position for this purpose.

Abstract: A pressure vibration damping device in a liquid supply passage for supplying a liquid from a pump to a hydraulic device such as a fluid pressure type suspension of a vehicle, including a pressure pulse absorbing means adapted to be able to accept and return a small amount of the liquid from and to said liquid supply passage so as to absorb momentary changes in the flow rate of the liquid in the liquid supply passage, and a liquid column vibration damping means adapted to be able to apply a substantial flow resistance principally to a high velocity flow of the liquid in the liquid supply passage at a part thereof between the pump and the pressure pulse absorbing means, the high flow velocity being due to pulse flows of the liquid induced by a resonance of pulsating output of the pump and the pressure pulse absorbing means and substantially higher than a mean flow velocity of the liquid corresponding to a normal rate of supply of the liquid through the liquid supply passage.

Abstract: A hydraulic continuously variable speed transmission includes a hydraulic pump and a hydraulic motor, at least one of said hydraulic pump and motor being of variable displacement type. A hydraulic path is formed in a member of the pump which rotates in synchronism with an output shaft of engine, for communicating hydraulic a pressure chamber of the hydraulic pump with a drain. A check valve is provided in the hydraulic path for closing the hydraulic path under centrifugal force created by the rotation of the member when this member is in rotation faster than a predetermined speed, and for opening the hydraulic path against a centrifugal force when the member is in rotation slower than the predetermined speed.

Abstract: A passive destroker mechanism operated by centrifugal force is added to a variable stroke axial piston wobble plate refrigerant compressor. The destroker operates at a predetermined compressor speed to communicate the discharge side of the compressor with its sealed crankcase to thereby provide a controlled discharge gas bleed thereto to destroke the compressor to a desired displacement. Then after the speed is reduced below such trigger speed, the destroker mechanism operates to return the compressor to its normal stroke control condition.

Abstract: A modular sub-assembly of a regulator of a pressure drop detector and intated excess speed governor intended for use with turbo-machines. The pressure drop detector and the excess speed governor are supplied in parallel by a common working fluid at a common pressure PF at low flow and the excess speed governor is capable of reducing the pressure of the working fluid by placing it in communication with a pressure PB which is higher when a predetermined excess speed is achieved, in order to reduce the pressure Pmod at the outlet of the pressure drop detector and to reduce the fuel flow delivered to the injector circuit of the turbo-machine.

Abstract: The injection pump includes a pump cylinder, a pump piston moving into it and a hydraulic device for adjusting the instant of injection. The adjusting device has an adjusting cylinder, which is directed parallel to the pump cylinder and is accommodated in the housing of the injection pump, and adjusting piston and a restoring spring and adjusts a control sleeve, which opens the pump piston provided with at least one control recess in the longitudinal direction of the pump piston. This orientation and disposition of the adjusting cylinder effects a space-saving and inexpensive design of the injection pump and improves the precision of adjustment. The adjusting piston and the control sleeve may be directed coaxially and embodied as a single component, as a result of which a further space saving and increase in adjustment precision are attained.

Abstract: A vehicle wheel-tire assembly wherein the tire has a low inflation pressure (large tire footprint) in a low vehicle speed range, and a large inflation pressure (small tire footprint) in a high vehicle speed range. The tire is partitioned into a series of circumferential compartments, with each compartment being provided with a valve mechanism for introducing air into the compartment and/or withdrawing air from the compartment as needed to maintain desired inflation pressures in the different vehicle speed ranges. The system is contained entirely in the wheel-tire assembly; no external air compressors or control valves are utilized.

Abstract: A fuel injection pump is proposed, which has a centrifugal governor disposed in the suction chamber of the fuel injection pump, the governor having a sleeve displaceable on a piston, and a pressure chamber enclosed in the interior of the governor sleeve, the latter being defined by the end face of the piston. By means of a relief line of the pressure chamber which is opened in the offset position of the governor sleeve, the restoring force on the centrifugal governor is increased during starting by the amount of the pressure difference appearing at the governor sleeve. Beyond a predetermined adjustment of the governor sleeve, the relief line is blocked, so that the governor can function unhindered within the normal operational range. The hysteresis thus resulting upon the shut-off of the increased starting quantity improves the behavior of the engine as it runs up to operational speed.

Abstract: A mechanical speed regulator for an injection pump which has centrifugal weights on its drive shaft. The centrifugal weights shift the regulator or control pin axially against the force of a starting supplementary feed spring, whereby in operation the control pin additionally is balanced or equalized with a control spring. The control spring is arranged at one end and the control pin is arranged at another end of a beam arranged to swing freely. A suspension of the beam is shiftable in the longitudinal direction of the beam. The suspension of the beam is arranged and embodied practically free of friction, for instance point journalling being provided therewith. The control pin at its free end provides a knife edge which fits into a correspondingly embodied depression or recess in the beam, and the beam has a conical tip elevation for receiving the control spring. An adjustable abutment is provided in the form of a set screw on the beam in the axial extension of the control spring.

Abstract: A liquid fuel injection pumping apparatus of the rotary distributor type includes a cam ring which is angularly adjustable to vary the timing of delivery of fuel. The setting of the cam ring is determined by a piston in which is located a servo valve. The servo-valve has a land to control fluid flow into a cylinder containing the piston. The servo valve is spring biased and a wedge is provided between a cylindrical member engaged by a spring and the servo-valve, the wedge being movable to alter the distance of the portion of the land which controls fluid flow of the servo valve. The wedge is coupled to the output member of a speed responsive device, the output member also being coupled to a fuel quantity control of the apparatus so that the setting of the cam ring depends upon the amount of fuel delivered by the apparatus.

Abstract: There is proposed a fuel injection pump wherein the full load feed quantity is defined by a speed-dependent correction of the maximum full load quantity. The pump comprises a control device which acts on a stop lever via a stop piston. The stop lever receives the full load stop and determines the position of a flow quantity adjustment member. The stop piston is connected with a control diaphragm which separates a control chamber from a spring chamber and comprises a bore which is connected to the suction chamber of the pump and in which a control piston is provided so as to be slidable in opposition to the force of a control spring. The control chamber is connected to the suction chamber via a throttle orifice.

Abstract: In a distributor type fuel injection pump of the type including a plunger arranged for reciprocating and rotative motion, and a fuel injection quantity setting member slidably fitted on the plunger and engageable with a cut-off port formed in the plunger and communicating with a pump working chamber, a second cut-off port is formed in the plunger in communication with the pump working chamber, which opens in an outer peripheral portion of the plunger with which the fuel injection quantity setting member permanently slidably engages, and a plurality of spill ports formed in the setting member in a circumferentially spaced relation, which are smaller in number than the cylinders of an engine for use with the pump. When the plunger moves through each delivery stroke in a low engine load region, the second cut-off port engages each one of the spill ports successively to cause injection of fuel into only part of the engine cylinders.

Abstract: A scroll-type refrigerant compressor unit is assembled by inserting parts into the compressor housing in a predetermined order and by finally securing a front end plate onto the compressor housing by bolts, which simplifies the production of the compressor unit. A drive shaft is supported by a single radial bearing, and a disk rotor having a drive pin to effect the orbital motion of the orbiting scroll member is fixedly mounted on the inner end of the drive shaft and is supported on the front end plate by a thrust bearing. Thus, the drive shaft and, therefore, the compressor unit are reduced in length and deflections and vibrations of the drive shaft are prevented. A lubricating system is provided to lubricate the shaft seal assembly on the drive shaft wherein the oil in the compressor housing is directed to the shaft seal cavity and returns to the interior of the compressor housing after lubricating the radial and thrust bearings and other parts.

Abstract: A fuel pump assembly for supplying fuel to a gas turbine engine has a centrifugal pump, including an impeller, that furnishes the necessary pressure for engine operation at high engine speeds. A vane pump, attached to the back side of the impeller of the centrifugal pump, supplies fuel to the engine for starting and acceleration to idle. The vane pump is of the type having a stationary centrally disposed cam and an annular rotor with radially inwardly directed vanes which ride over the surface of the cam. Before idle speed is attained, the vanes which are substantially hydraulically balanced and made of a light plastic material are adapted to lift off the surface of the cam without the need of pressure relief behind the vanes.

Abstract: A rotary distributor fuel pump for an engine is provided with a piston driven by an eccentric bore of a rotating assembly for pressurizing fuel communicated thereto. A rotor is provided for varying both volumetric flow as well as timing of fuel injected to the engine. The rotor is rotated at a speed proportional to the rotational speed of the rotating assembly. Volumetric flow is achieved by a change in the axial position of the rotor. Control of timing can be achieved by changing the rotative position of the rotor relative to the rotating assembly.

Abstract: FIGS. 1 and 1a show a fuel injection pump assembly having an axially and rotatably mounted fuel metering sleeve valve 60 rotated by an engine driven pumping member 34 whereby the valve helix 68 selectively covers and uncovers a fuel spill hole 74 leading to a fuel delivery valve 82, the pump having a centrifugal injection timing advance mechanism 108, 110, 112 connecting the pumping member 34 and the metering valve by a pin and slot type connection permitting an angular rotation of the metering valve relative to the pumping member to advance the position of the helix 68 relative to the spill port 74 per revolution of the pumping member, and other means 170, 172, 95 operable at will to retard the fuel injection timing schedule regardless of the position of the injection timing advance mechanism.

Abstract: FIG. 1 shows a fuel injection pump assembly that includes a single fuel metering valve 60 of the sleeve type cooperating through spill ports 74 with the output of a number of coaxially mounted pump plungers 46 and an equal number of fuel delivery valves 82, the plungers being moved axially by an engine driven pump 34 that is drive connected by splines 99 and pin 108 and slot 110 type connections to a centrifugal fuel injection timing advance means 112 and to the metering valve 60 permitting the valve to move angularly and axially relative to the pump to provide changes in timing and rate of injection, and a manually operated lever 180 to axially move the metering valve 60 at will to change the fuel flow rate without influence of fuel pressure forces on the valve end and without the necessity of also moving the mass of the first means 112 that changes the injection timing.

Abstract: An improved r.p.m. regulator of a fuel injection pump for internal combustion engines includes an improved control spring mechanism. The control spring mechanism is connected to one end of a control lever which in turn is connected at its other end to a fuel supply quantity setting member. The control lever serves to actuate the fuel supply quantity setting member in accordance with the forces applied to the control lever by the control spring mechanism and an r.p.m.-dependent force applying structure which applies a force to the control lever in opposition to the force applied by the control spring mechanism. The control spring mechanism in one embodiment of the invention includes axially aligned tandem springs mounted between the control lever and a setting lever, a first connecting member and a second connecting member.

Abstract: A centrifugal pressure regulator comprises a pair of pistons slidable within a bore and moves in one direction by the action of a coiled spring and by centrifugal force imparted to the pistons as the body in which the bore is located rotates. The outer ends of the two pistons are subjected to the outlet pressure of a pump and the piston adjacent the spring is smaller in diameter than the other piston. The space between the pistons is vented to a drain and in the wall of the bore there is formed a spill port. The smaller of the pistons controls the size of the port which communicates with the outlet of the pump. The outlet pressure of the pump is controlled in accordance with the position of the pistons by spilling fuel through the port, the amount of fuel spilt depending on the effective size of the port.

Abstract: A pressure regulator for controlling the output pressure of a fluid pump comprises a first member having at least one orifice opening out onto a surface of the member, a further member which is biased into contact with the surface so as to obturate said orifice, resilient means biasing the member into contact with said surface and speed responsive means acting to assist said spring. The output pressure of the pump being controlled in accordance with the force exerted by the spring and the speed responsive means.

Abstract: A fuel injection pumping apparatus includes an axially movable member which at one end is acted upon by governor weights and at its other end is acted upon by a spring, the governor weights moving the member in opposition to the spring, the reaction member for the weights comprising a dash-pot containing a further spring and the member being provided with a groove which can register with a port to control the flow of fuel delivered by the pumping apparatus to the associated engine. Also provided on the member is a further groove which is in restricted communication with the groove and which during certain conditions of rapid deceleration of the engine, is brought into communication with the port so as to ensure that under such conditions a restricted flow of fuel takes place to the engine.

Abstract: A rotary distributor fuel pump for a multi-cylinder internal combustion engine is provided with a rotor to meter and distribute fuel to the engine cylinders. The rotor axially reciprocates to vary fuel quantity and can be advanced or retarded relative the housing to provide timing through angular displacement of a ring gear which forms part of a planetary gear assembly driving the rotor. Fuel is pressurized by pistons mounted in the stationary housing and reciprocated radially in relation to the rotor under urging of a second rotating member having an eccentric inner bore. Axial displacement of the rotor is accomplished through conventional governor means.

Abstract: A fuel injection apparatus includes an axially movable member movable to determine the amount of fuel supplied by the apparatus. The member is acted upon by a weight mechanism including pivotal weights the force exerted by which is opposed by a governor spring adjustable from the exterior of the apparatus. Increase of the force exerted by the spring can result in sudden movement of the member so that temporarily too much fuel is supplied to the engine. This difficulty is minimized by providing a dash-pot which restricts the rate of movement of the member under the action of the governor spring at low engine speeds. The dash-pot is combined with a resilient means the force exerted by which is less than that of the governor spring at moderate engine speeds so that the dash-pot action is only obtained at low engine speeds.

Abstract: A fuel injection pump of rotary type for use in an internal combustion engine, which incorporates a fuel injection control mechanism comprising a mechanical governor arrangement through a mechanical coupling of self-centering and vibration absorbing character in the driving train of such rotary components as a face cam shaft for driving a plurality of plunger pumps disposed radially and a control shaft for axially shifting a metering sleeve. The metering sleeve is specifically designed for adjusting the opening areas of a plurality of metering orifices defined radially in the inner circumferential surface of a barrel of the fuel injection pump for communication with the radially disposed plunger pumps.

Abstract: An improved rpm regulator for a fuel injection pump associated with an internal combustion engine. The regulator includes a suction chamber, an intermediate lever, a fuel quantity control sleeve connected to the intermediate lever, a regulating spring assembly connected to the intermediate lever, a device including centrifugal weights and a governor sleeve for developing and transmitting an rpm signal through the intermediate lever to the fuel quantity control sleeve in opposition to a force exerted by the regulating spring assembly, a control lever, and an adjustable stop, including a cam member, mounted to the housing for limiting the motion of the intermediate lever. A working chamber is provided between the governor sleeve and an end of a guide shaft forming part of the device for transmitting an rpm signal. Openings are provided in the governor sleeve which communicate with the suction chamber for effecting a damping of oscillations of the governor sleeve during predetermined load conditions.