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Class 417/294 - Centrifugally actuated


Subclass of Class 417 - Pumps
Definition: Apparatus wherein the sensing means comprises centrifugally
No. of patents: 30
Last issue date: 03/07/2006


NumberTitleIssue Date
7009317Cooling system for an electric motor
A cooling system for an electric motor includes a cooling duct formed between a cooling jacket and a separate component surface. The separate component surface may define at least a portion of a wall of the cooling duct. The cooling duct may be configured to direct ...
03/07/2006
6953022Fuel injection pump
A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and...
10/11/2005
6863505Wind driven high pressure water pump
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...
03/08/2005
6746416Duplex blood pump for heart surgery
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 po...
06/08/2004
6126402Air compressor system
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 mo...
10/03/2000
5609475Compressor with a hypotrochoidal design having a fluid delivery which is not solely dependent on a drive RPM
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 ...
03/11/1997
5098263Pressure vibration damping device in combination of liquid column vibration damping means and pressure pulse absorbing means
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 retu...
03/24/1992
4967555Hydraulic continuously variable speed transmission with relief valve to prevent engine stall
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 sy...
11/06/1990
4872814Variable displacement compressor passive destroker
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...
10/10/1989
4738597Hydromechanical governor
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 com...
04/19/1988
4630587Fuel injection pump having an adjustable instant of injection
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...
12/23/1986
4570691Tire pressure regulation system
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 ...
02/18/1986
4483297Fuel injection pump for internal combustion engines
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, ...
11/20/1984
4432704Mechanical speed regulator for an injection pump
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 con...
02/21/1984
4418667Fuel injection pump for internal combustion engines
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 rece...
12/06/1983
4419054Liquid fuel injection pumping apparatus
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...
12/06/1983
4413600Distributor type fuel injection pump adapted for partial cylinder operation of an internal combustion engine
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 ...
11/08/1983
4314796Scroll-type compressor with thrust bearing lubricating and bypass means
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 compresso...
02/09/1982
4247263Pump assembly incorporating vane pump and impeller
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 ...
01/27/1981
4200072Fuel injection pump
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 t...
04/29/1980
4197059Fuel injection pump having means for retarding the fuel injection timing schedule
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 ...
04/08/1980
4197058Fuel injection pump assembly
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 8...
04/08/1980
4180040Regulator for a fuel injection pump
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 f...
12/25/1979
4178137Pressure regulator for a fluid pump
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 en...
12/11/1979
4173434Pressure regulator for a fluid pump
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 o...
11/06/1979
4116186Fuel injection pumping apparatus
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 membe...
09/26/1978
4108130Fuel injection pump
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...
08/22/1978
4041920Fuel injection pumping apparatus
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 s...
08/16/1977
3986487Rotary type fuel injection pump
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 chara...
10/19/1976
3946713RPM regulator for fuel injection pumps
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 ass...
03/30/1976
 
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