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公开(公告)号：JPS5248728A
公开(公告)日：1977-04-19
申请号：JP11648176
申请日：1976-09-28
Applicant: STANADYNE INC
Inventor： DAVIS CHARLES WADE
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公开(公告)号：AU525183B2
公开(公告)日：1982-10-21
申请号：AU4233278
申请日：1978-12-08
Applicant: STANADYNE INC
Inventor： BOUWKAMP GERALD RAYMOND , GILBERT WESLEY BURNS , DONAHUE CHARLES JAMES , DAVIS CHARLES WADE
Abstract: Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed. These include combinations of resilient and rigid leaf spring arrangements for controlling the maximum pumping stroke with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.
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公开(公告)号：DE2853443A1
公开(公告)日：1979-06-13
申请号：DE2853443
申请日：1978-12-11
Applicant: STANADYNE INC
Inventor： BOUWKAMP GERALD RAYMOND , DAVIS CHARLES WADE , GILBERT WESLEY BURNS , DONAHUE CHARLES JAMES
Abstract: Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed. These include combinations of resilient and rigid leaf spring arrangements for controlling the maximum pumping stroke with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.
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公开(公告)号：AU1099476A
公开(公告)日：1977-08-18
申请号：AU1099476
申请日：1976-02-10
Applicant: STANADYNE INC
Inventor： DAVIS CHARLES WADE
Abstract: A fuel injection pump with a control system for regulating the quantity and timing of the delivery of fuel to an associated engine is disclosed. In the control system, three pistons, slidably mounted in parallel bores, are provided. One of the pistons is powered so that it assumes an axial position indicative of engine speed. A second piston is powered to assume an axial position indicative of the quantity of fuel being delivered by the pump. The first and second pistons are each provided with a cam surface, and cam followers controlled thereby interconnect these pistons with the third piston to control the axial position of the third piston and the timing of delivery of fuel by the pump. A second cam surface on the speed positioned piston is connected to a variable stop which varies the maximum amount of fuel which can be delivered by the pump in accordance with speed and a second cam surface on the fuel quantity positioned piston actuates a feedback control to adjust the amount of fuel delivered by the pump so as to maintain the selected engine speed. Various additional modifying or override controls are provided to selectively modify the operation of the pump in accordance with other parameters, such as manifold air pressure, or during starting, or in case of malfunction.
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公开(公告)号：DE2328272A1
公开(公告)日：1973-12-20
申请号：DE2328272
申请日：1973-06-04
Applicant: STANADYNE INC
Inventor： DAVIS CHARLES WADE
Abstract: A fuel injection pump is provided with timing control in which a hollow cap removably mounted in a bore of the fuel pump forms a pressure chamber in which the advance piston is axially movable for controlling the timing of injection. An annulus around the cap provides a passage for the delivery of pressurized fuel to the pressure chamber and a flat reed valve in the pressure chamber overlying the inlet port of the pressure chamber isolates the ring seals for sealing the annulus from the repetitive high pressure pulses imposed when the pumping plungers move past the cam lobes during pumping strokes which otherwise may cause the seals to be extruded into the clearance gap between the cap and the bore.
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Patent Agency Ranking
公开(公告)号：FR2411316A1
公开(公告)日：1979-07-06
申请号：FR7834449
申请日：1978-12-07
Applicant: STANADYNE INC
Inventor： DAVIS CHARLES WADE
Abstract: A supply pump comprising a body having an inlet and an outlet both in fluid communication with an interior region of the body which contains two pistons positioned to reciprocate coaxially and which define three variable volume chambers, one between the two pistons and in fluid communication with the inlet, a second between one piston and the outlet and a third between the other piston and the outlet. The pistons have different working areas, and the piston of larger area carries a check valve which allows fluid flow from the chamber between the pistons to the chamber between the larger piston and the outlet. A regulating spring acts between the body and the smaller piston to urge both pistons against a mechanical drive means including a reciprocable rod carried by a tappet contacting a driven cam. During each forward and reverse stroke of the pistons in response to rotation of the cam, supply fluid is drawn into the pump through the inlet and forced out of the pump through the outlet.
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公开(公告)号：FR2411309A1
公开(公告)日：1979-07-06
申请号：FR7834770
申请日：1978-12-11
Applicant: STANADYNE INC
Inventor： BOUWKAMP GERALD RAYMOND , DAVIS CHARLES WADE , GILBERT WESLEY BURNS , DONAHUE CHARLES JAMES
Abstract: Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed. These include combinations of resilient and rigid leaf spring arrangements for controlling the maximum pumping stroke with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.
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公开(公告)号：AU4233278A
公开(公告)日：1979-06-21
申请号：AU4233278
申请日：1978-12-08
Applicant: STANADYNE INC
Inventor： BOUWKAMP GERALD RAYMOND , DAVIS CHARLES WADE , GILBERT WESLEY BURNS , DONAHUE CHARLES JAMES
Abstract: Designs for variably controlling the maximum quantity of fuel which can be delivered by a pumping stroke of pumping plungers are disclosed. These include combinations of resilient and rigid leaf spring arrangements for controlling the maximum pumping stroke with and without speed responsive control valves or cams, to provide excess fuel for starting and for shaping the maximum fuel delivery curve according to speed.
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公开(公告)号：AU1852876A
公开(公告)日：1978-04-20
申请号：AU1852876
申请日：1976-10-11
Applicant: STANADYNE INC
Inventor： DAVIS CHARLES WADE
Abstract: A rotary distributor fuel injection pump is provided with a main high pressure pumping chamber and an auxiliary high pressure pumping chamber which have a common inlet and outlet passage. The pumping plungers in said pumping chambers operate in unison to generate simultaneous high pressure pulsed charges of fuel within the pumping chambers. Both pumping chambers are connected to deliver their high pressure outputs simultaneously to the output passage for delivery sequentially to each of the cylinders of an associated engine. A speed responsive valve controls the delivery of the output from the auxiliary pumping chamber to the common outlet passage and isolates the auxiliary chamber from the common inlet and outlet passage without impairing the connection of the main pumping chamber with the common inlet and outlet passage when engine speed reaches a predetermined level. A valving arrangement is provided to maintain the auxiliary pumping chamber in its isolated condition until the engine is essentially stopped.
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公开(公告)号：AU1852776A
公开(公告)日：1978-04-20
申请号：AU1852776
申请日：1976-10-11
Applicant: STANADYNE INC
Inventor： SALZGEBER DANIEL EDWIN , DAVIS CHARLES WADE
Abstract: A liquid fuel injection pump for supplying timed charges of fuel to an engine by timed pumping strokes includes an adjustable timing mechanism for changing the timing of the pumping strokes. The timing mechanism includes an advance piston which is variably positionable in response to two different hydraulic control pressures. A speed related control pressure operates a servo mechanism associated with the advance piston to provide a component of speed advance. The reference position of a servo spring associated with the servo mechanism is varied by the second control pressure acting against a piston which mounts the spring and which is biased to a position of relatively advanced timing, thereby to add a component of advance which modifies or supplements the speed advance. The second control pressure is correlated with engine load and/or acceleration and in one embodiment is derived from the positioning of the fuel metering means and in another embodiment is derived from the intake manifold air pressure such as that from a turbocharged engine so that the timing is relatively advanced at low loads and during acceleration, and is relatively retarded at higher loads. A gate controlled by the position of a fuel limiting plunger coacts with the advance piston's servo mechanism to prevent advance of the advance piston during engine cranking, and maximum fuel delivery per pumping stroke is controlled according to intake manifold air pressure.
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