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| Number | Title | Issue Date |
| 6161522 | Controller of engine and variable capacity pump The invention provides a controller of an engine and a variable capacity pump which can perform a speedy work even under a heavy load and a strong work at the critical moment. Accordingly, there is provided control means (30) which outputs commands to a f... | 12/19/2000 |
| 6021756 | Engine control system for construction machine The pump controller 40 determines pump load torques Tr1, Tr2 from tilting signals θ1, θ2 of hydraulic pumps 1, 2 and delivery pressure signals PD1, PD2 of the hydraulic pumps 1, 2 based o... | 02/08/2000 |
| 5878721 | Engine control system for construction machine The pump controller determines pump load torques (Tr1, Tr2) from tilting signals (θ1, θ2) of hydraulic pumps and delivery pressure signals ( PD1, PD2) of the hydraulic pumps based on T | 03/09/1999 |
| 5468126 | Hydraulic power control system Large work vehicles include hydraulic implement control systems having an hydraulic pump being driven by an internal combustion engine. The subject invention provides a method and apparatus for controlling such an hydraulic system to control engine lug wh... | 11/21/1995 |
| 5293854 | Injection pump throttle dashpot for transient smoke control The present invention provides a very simple structure to delay high fuel delivery to a turbocharged engine until a sufficient turbocharger boost pressure is available for adequate combustion, by providing a simple dashpot to limit movement of the throttl... | 03/15/1994 |
| 5255651 | Governor for fuel injection system A hydraulic-controlled electronic governor employed in a fuel injection system is provided with a proportional pressure-reducing solenoid valve (10) capable of conducting a self-regulation of an input hydraulic pressure supplied from a hydraulic pressure ... | 10/26/1993 |
| 5188075 | Fuel injection pump for internal combustion engines The invention is based on a fuel injection pump in which an adjuster, which may also be an injection onset adjuster, is actuated via an adjusting mechanism, and the adjusting mechanism has an adjusting piston, which is displaceable in a cylinder and is ad... | 02/23/1993 |
| 5188074 | Fuel injection pump for internal combustion engines The invention is based on a fuel injection pump having an adjuster, actuatable via an adjusting mechanism; the adjusting mechanism has an adjusting piston which is displaceable in a cylinder and is adjustable counter to a restoring force by a pressure flu... | 02/23/1993 |
| 5014667 | Electro-hydraulic control system for governors The governor of the invention consists of an output solenoid having a plunger operatively connected to the mechanism to be controlled. The output solenoid is a "bang-bang" type such that full power or no power is delivered to the solenoid even for small e... | 05/14/1991 |
| 4989567 | Engine speed controlling system in construction machine In a construction machine having an engine speed setting device, a throttle lever for instructing a set number of revolutions to the engine speed setting device, and plural operating levers each for instructing the operation of an actuator, an engine spee... | 02/05/1991 |
| 4972819 | Servocylinder unit A servocylinder unit for adjusting an amount of fuel fed to a vehicle drive engine and comprising a piston displaceable in a cylinder, a first pre-stressed spring for biasing the piston to its initial position, a first stop for supporting the first spring... | 11/27/1990 |
| 4911121 | Engine protection device An engine protection device which has a valve assembly supplying engine oil to an hydraulic cylinder which in turn is attached to the throttle of an internal combustion engine or governor of a stationary engine. If the oil pressure drops below a predeterm... | 03/27/1990 |
| 4909216 | Regulating arrangement of a fuel-injection pump with a lever The lever (13) cooperates on the one hand with a rotatable part (12) and, on the other, is coupled with a to-and-fro movable adjusting member (14). The lever (13) consists of a housing (15) traversed by the rotatable part (12), of a piston-like spring pla... | 03/20/1990 |
| 4840156 | Intake air quality control method for internal combustion engines at termination of fuel cut operation A method of controlling the quantity of intake air being supplied to an internal combustion engine equipped with means for increasing the intake air quantity by a required amount in response to operating conditions of the engine. The intake air quantity i... | 06/20/1989 |
| 4838755 | Automatic engine control for an excavator An excavator has a number of different hydraulically powered functions that are controlled by a closed center hydraulic system that features a pair of variable displacement, engine driven hydraulic pumps, the displacement of which is responsive to the dem... | 06/13/1989 |
| 4836165 | Engine controlling apparatus for a wheeled type construction machine The present invention is concerned with an apparatus for controlling an engine mounted on a wheeled type construction machine. This engine controlling apparatus is adapted to set first and second torque performances conformable to a time of working of the... | 06/06/1989 |
| 4815434 | Hydraulic inertia governor An inertia governor mechanism applicable to a power unit providing a uniform preselected RPM when the power unit is subjected to variable loads. A pump means provides a constant supply of fluid at a constant pressure to a fluid circuit. A rotary disc valv... | 03/28/1989 |
| 4785778 | Engine governor with dual regulation A governor (11) for providing at least two different regulation factors for an internal combustion engine (10) including a fuel injection system (12). The governor (11) includes a rotatable flyweight assembly (18,20,22) adapted to be mechanically connecte... | 11/22/1988 |
| 4774921 | Method and system for controlling an engine An engine of a construction vehicle is controlled by a system which includes an engine control operation transmitting mechanism having a loose spring means and connecting a fuel control lever and a governor control lever; a decelerator cylinder accommodat... | 10/04/1988 |
| 4773369 | Method of controlling an output of an internal combustion engine and/or a variable displacement hydraulic pump driven by the engine A method of controlling an output of an internal combustion engine having an electronic governor device and/or that of at least one variable displacement hydraulic pump driven by the engine in which, when the engine is operated in a range of high speed re... | 09/27/1988 |
| 4770141 | Fuel pumping apparatus A fuel pumping apparatus for supplying fuel to an internal combustion engine includes a spring loaded fuel quantity control member which is moved by increasing fluid pressure in a chamber to reduce the amount of fuel supplied. The pressure in the chamber ... | 09/13/1988 |
| 4643146 | Apparatus for controlling the rotary speed of a diesel engine for a hydraulic excavator or the like In a diesel for a hydraulic excavator or the like, the speed regulator of the injection pump is set by a lever which is pivoted by a piston-cylinder unit against the force of a return spring. Before or during operation under load, the piston-cylinder unit... | 02/17/1987 |
| 4638779 | Apparatus for controlling an engine in a hydraulically driven vehicle An apparatus for controlling the engine of a hydraulically driven vehicle includes a transmission mechanism having a loose spring and connecting a fuel control lever operationally to a governor control lever, a decelerator cylinder including a spring havi... | 01/27/1987 |
| 4478188 | Adjustable hydraulically operated stop An adjustable hydraulically operated stop for pulsed loading is proposed, which is particularly applicable for the metering piston of a fuel injection system. The stroke of this metering piston can be varied by adjusting a stop body by means of a metering... | 10/23/1984 |
| 4350128 | Fuel flow control supercharged engine A fuel flow regulation device for a supercharged engine of the type having an injection pump whose piston's bottom position is determined by a moving stop, is disclosed. The fuel flow regulation device consists of a tridimensional cam contacting the stop ... | 09/21/1982 |
| 4328778 | Device for controlling a diesel motor driven pump drive A device for regulating a diesel motor driven feed pump which includes an injection pump associated with the diesel motor to control its operating speed, comprises a load, a variable pressure resistance connected by a feed line in series in series to the ... | 05/11/1982 |
| 4327684 | Fuel injection amount - fluid pressure conversion system In an internal combustion engine equipped with a fuel injection pump which has a movable fuel amount determining element, the position of which determines the amount of fuel provided for injection by the fuel injection pump, a pressure regulating valve is... | 05/04/1982 |
| 4278058 | RPM Regulator for fuel injection pumps in internal combustion engines In an rpm limit shut-off regulation effected by a piston which is displaceable by the rpm-dependent pressure of a regulator fluid and which limits the injection quantity, it is proposed to influence the shut-off curve via a pressure roller which engages a... | 07/14/1981 |
| 4275691 | Electromechanical precision governor for internal combustion engines An electronically controlled, hydraulically actuated precision governor controls the operating RPM of an internal combustion engine by repositioning the engine throttle in response to changes in engine RPM. The piston of a hydraulic actuator is coupled to... | 06/30/1981 |
| 4262642 | Device for reducing fuel consumption in internal combustion engines An internal combustion engine is provided with a device for automatically preventing thermal and mechanical stress during overload periods, and to power the engine with the most economical fuel consumption rate possible. In a preferred embodiment, the dev... | 04/21/1981 |
| 4200075 | Fuel injection apparatus A line type fuel injection pump comprises a plurality of fuel injection pumps provided in a number one greater than the number of cylinders in an internal combustion engine. The extra injection pump constitutes a component of a liquid abutment regulator m... | 04/29/1980 |
| 4136656 | Load control device for turbo-suspercharged diesel engines The present invention relates to control devices and can most advantageously be used in load control devices for turbo-supercharged diesel engines operating over a wide range of operating conditions when frequent unsteady periods of operation caused by va... | 01/30/1979 |
| 4057044 | Hydraulic aneroid control and fluid flow restricting device for use therewith Disclosed herein is a hydraulic aneroid control consisting of a housing containing a hydraulic piston and a flow control mechanism. The housing attaches to the governor housing so that the piston can move the fuel control shaft which engages the aneroid. ... | 11/08/1977 |
| 4050434 | Hydraulic servo-motor A hydraulic servo-motor for the control of an internal combustion engine which is equipped with a servo-piston, with a fuel quantity control mechanism and with a control slide valve member arranged coaxially to the servo-piston which itself is in operativ... | 09/27/1977 |
| 4016851 | Safety control method and device for limiting the temperature of a fluid to a given upper value A safety control method for limiting the temperature of a fluid to a given upper value comprising the sensing of the fluid temperature and the control of a servo-motor keyed in follow-up relationship to said temperature and acting upon a member controllin... | 04/12/1977 |
