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| Number | Title | Issue Date |
| 7523739 | Fuel injection system for internal combustion engine A fuel injection system for an internal combustion engine has a lubricity improver supply for adding a lubricity improver to low-viscosity fuel supplied to a fuel injection apparatus of the engine. A controller controls the lubricity improver supply so that the amou... | 04/28/2009 |
| 7299780 | Dual high-pressure lube-oil pumps for diesel fuel injection A lube-oil pump system for a diesel engine's fuel injection system has a first and second pump. Each pump is a multi-plunger swash-plate type pump. The first pump mounts to a neck portion of a front cover of the engine's crankcase and has a driven gear that meshes w... | 11/27/2007 |
| 7201138 | Control system for internal combustion engine A control system used with an engine determines a fuel injection timing according to a detected engine operating condition and fuel injection is executed through a fuel injection valve. The target ignition timings of the fuel are set according to the detected engine... | 04/10/2007 |
| 7137386 | Closed loop A/F ratio control for diesel engines using an oxygen sensor A fuel control system for a diesel engine includes a first module that calculates a block learn multiplier (BLM) based on a feedback signal during a closed-loop fuel control period. A second module adjusts a base fueling rate of the diesel engine based on the BLM du... | 11/21/2006 |
| 7027906 | Combustion control of internal combustion engine The Inventor invented a combustion control device which optimizes combustion regardless of the cetane number of a fuel of an internal combustion engine (1) by focusing on the correlation between the cetane number and specific gravity of the fuel, and correcti... | 04/11/2006 |
| 7013865 | Fuel injection system A fuel injection system includes an injector, a controller, and a cylinder internal pressure sensor. The injector injects fuel to an engine. The controller controls injection start timing of the injector, an injection amount, and a supply pressure of the injected fu... | 03/21/2006 |
| 6959242 | Engine fuel injection control device A spark ignition engine (2) has a fuel injector (8) in an intake port (7). An engine rotation speed sensor (9) detects the rotation speed of the engine (2). The controller (1) determines the target fuel injection amount of t... | 10/25/2005 |
| 6941929 | Combustion control system for internal combustion engine A combustion control system of an internal combustion engine is comprised of a specific gravity detecting section which detects a specific gravity of fuel used in the engine, and a combustion control section which controls combustion in the engine on the basis of th... | 09/13/2005 |
| 6935311 | Engine control with fuel quality sensor A system is described using a fuel quality sensor for controlling various aspects of engine operation. In particular, an acoustic wave sensor is utilized to measure viscosity and density of gasoline fuels. This measurement is utilized to predict engine combustion qu... | 08/30/2005 |
| 6845752 | Fuel injection system A fuel injection system includes a fuel pressure boost pump having a pump body that defines a pump cylinder and a pump chamber. A piston structure is movable in the pump cylinder along a longitudinal axis of the piston structure. A fuel inlet conduit and a fuel outl... | 01/25/2005 |
| 6823834 | System for estimating auxiliary-injected fueling quantities A system for estimating an auxiliary-injected fuel quantity includes a fuel injector for injecting fuel into an engine, a fuel pump supplying fuel to a fuel collection unit that then supplies fuel to the fuel injector, and a control circuit that generates an auxilia... | 11/30/2004 |
| 6705290 | Fuel injection control system and method A system and method of controlling a fuel injector is provided. A first injection signal is applied to a hydraulically actuated fuel injector to inject a quantity of fuel into a combustion chamber of an internal combustion engine. An amount of an operating fluid use... | 03/16/2004 |
| 6508107 | Method and apparatus for determining an oil grade of an actuating fluid The present invention provides a method and apparatus for determining the oil grade of an actuating fluid in a fuel system. The method includes the steps of determining an actuating fluid temperature, a pump speed, and a peak pressure or a timing event of... | 01/21/2003 |
| 6360717 | Fuel injection system and a method for operating The present invention provides a fuel injection system and method of operating the fuel injection system. The fuel injection system includes at least one hydraulically actuated fuel injector fluidly connected with a source of high pressure actuation fluid... | 03/26/2002 |
| 6131548 | Fuel system A temperature distribution of fuel flowing through a delivery pipe is detected by two fuel temperature sensors provided in the delivery pipe and a fuel tank. When this temperature distribution exceeds an allowable range, adjusted pressure pumping processi... | 10/17/2000 |
| 6102000 | Fuel injection apparatus for engine A fuel injection apparatus for a diesel engine has a fuel injection pump for feeding fuel under pressure and fuel injection nozzles provided in the engine to inject fuel fed from the injection pump. A pressure sensor for detecting fuel pressure is provide... | 08/15/2000 |
| 6102004 | Electronic control for a hydraulically activated, electronically controlled injector fuel system and method for operating same An apparatus and method for varying the current levels of a fuel injection signal used in connection with an electronically controlled hydraulic actuator unit injector fuel system is disclosed. The apparatus and method varies the current level of the fuel... | 08/15/2000 |
| 6047682 | Accumulating type fuel injection control In an accumulator type fuel injection control device, a feed hole (28) provides communication between a common rail (24) for storing fuel from a fuel pressure pump (29) and a fuel injection valve (11); a control oil passage (23a, 23b, 23c) extends from th... | 04/11/2000 |
| 6014956 | Electronic control for a hydraulically activated, electronically controlled injector fuel system and method for operating same An apparatus and method for varying the duration of current levels of a fuel injection signal used in connection with an electronically controlled hydraulic actuator unit injector fuel system is disclosed. The apparatus and method varies the duration of t... | 01/18/2000 |
| 5896841 | Electronically controlled hydraulic actuation type fuel injection device utilizing oil viscosity detection device and method In an electronically controlled hydraulic actuation type fuel injection device, a viscosity value (mu) of hydraulic oil is detected by an oil viscosity detection sensor and then an aimed base valve opening time TinjBASE during which a solenoid ... | 04/27/1999 |
| 5848583 | Determining fuel injection pressure This invention includes selecting a desired pressure for fuel injection in an internal combustion engine. The selection improves control of fuel injection by keeping the fuel in the fuel rail in a liquid state and by keeping the fuel injectors in an opera... | 12/15/1998 |
| 5826561 | Method and apparatus for injecting fuel using control fluid to control the injection's pressure and time An electronically-controlled heavy fuel oil injection system comprises a pumping chamber for pressurizing fuel and a direct-operated check for controlling fuel injection. A control fluid different from the fuel is used to operate regulating apparatus for ... | 10/27/1998 |
| 5706780 | Diesel engine fuel property determining device and controller In a diesel engine comprising a fuel injection pump which supplies pressurized fuel by a plunger to a fuel injection nozzle, fuel properties such as fuel viscosity are determined. A fuel supply start timing by the plunger and fuel injection start timing b... | 01/13/1998 |
| 5586538 | Method of correcting engine maps based on engine temperature In one aspect of the present invention, a method for correcting an engine map for use in an electronic control system that regulates the quantity of fuel that a hydraulically-actuated injector dispenses into an engine. The engine map stores a plurality of... | 12/24/1996 |
| 5542395 | Temperature-compensated engine fuel delivery A fuel delivery system for an internal combustion engine that includes a fuel pump responsive to application of electrical power for delivering fuel under pressure to the engine. A pressure sensor supplies a pressure signal as a function of fuel pump outp... | 08/06/1996 |
| 5445129 | Method for controlling a hydraulically-actuated fuel injection system In one aspect of the present invention, a method is disclosed that controls the actuating fluid pressure supplied to a hydraulically-actuated injector and the time duration over which the hydraulically-actuated injector injects fuel. The desired actuating... | 08/29/1995 |
| 5423302 | Fuel injection control system having actuating fluid viscosity feedback An apparatus and method for detecting the viscosity of actuating fluid used to actuate a hydraulically-actuated electronically-controlled injector is disclosed. In an internal combustion engine system including an engine having a crankshaft, a crankshaft ... | 06/13/1995 |
| 5411003 | Viscosity sensitive auxiliary circuit for hydromechanical control valve for timing control of tappet system A viscosity sensitive, pressure divider arrangement for use as part of an engine timing control tappet system where that system includes a block oil pressure supply, hydromechanical control valve and an oil sump, the pressure divider arrangement including... | 05/02/1995 |
| 5357912 | Electronic control system and method for a hydraulically-actuated fuel injection system An apparatus for controlling fuel injection parameters for fuel injection quantity, injection timing, and actuating fluid pressure of a hydraulically-actuated electronically-controlled fuel system. The apparatus utilizes signals indicative of actuating fl... | 10/25/1994 |
| 5181494 | Hydraulically-actuated electronically-controlled unit injector having stroke-controlled piston and methods of operation In a hydraulically-actuated electronically-controlled unit injector, the viscosity of the actuating fluid used to actuate the unit injector varies with ambient temperature and affects the magnitude of pressure drops in the actuating fluid circuit. Such va... | 01/26/1993 |
| 5176115 | Methods of operating a hydraulically-actuated electronically-controlled fuel injection system adapted for starting an engine Methods of starting a hydraulically-actuated electronically-controlled fuel injection system are disclosed. One method comprises the steps of pressurizing actuating fluid used to actuate a unit injector and actuating an electrical actuator assembly of the... | 01/05/1993 |
| 5121730 | Methods of conditioning fluid in an electronically-controlled unit injector for starting Herein are disclosed methods of conditioning fluid, such as damping fluid, in an electronically-controlled unit injector in order to facilitate quick starting of an engine. Fluid normally used to dampen the motion of an electrical actuator assembly of the... | 06/16/1992 |
| 5092299 | Air fuel control for a PT fuel system An air fuel control system for an internal combustion engine is disclosed. The control system includes an air pressure responsive device for modulating mechanically the flow of fuel into the engine in response to the pressure of air within the intake mani... | 03/03/1992 |
| 5085198 | Low pressure fuel supply system for a fuel injection pump A low pressure fuel supply system supplies fuel which tends partially to solidify at low temperatures and whose viscosity increases with decreasing temperature, from a fuel tank along a supply line, through a filter, to a fuel injection pump. A fuel recir... | 02/04/1992 |
| 5060619 | Electrostatic capacity type fuel concentration monitoring unit with temperature dependent fluctuation compensating feature A fuel concentration monitoring unit includes a fuel temperature dependent error correction circuit in the unit. A fuel concentration indicative voltage signal variation rate set with taking a specific fuel concentration as reference point. The output inc... | 10/29/1991 |
| 5027768 | Fuel injection control system for diesel engine In a system for controlling an injection timing are detected an oxygen concentration in an exhaust gas, and a specific gravity of a fuel. A smoke concentration is calculated based on the oxygen concentration and the fuel specific gravity. The fuel injecti... | 07/02/1991 |
| 5024200 | Viscosity responsive pressure regulator and timing control tappet system incorporating the same A flow controlling system having a viscosity sensitive means for producing a simulated fluid pressure which varies in correspondence with a fluid pressure at a predetermined portion of a fluid flow circuit on the basis of the viscosity of the fluid flowin... | 06/18/1991 |
| 4971005 | Fuel control utilizing a multifunction valve A fuel control is provided having a metering means for metering a weight flow of fuel, a control for controlling the metering means, a valve for determining a change in fluid pressure of the weight flow of fuel downstream of the metering means, the valve ... | 11/20/1990 |
| 4955345 | Multi-fuel engine control with fuel composition responsive fuel viscosity correction A vehicle engine fuel control adapted for multi-fuel operation uses a fuel injection system in which fuel in a liquid mixture of first and second combustible fuels is injected in pulses of controlled duration at a predetermined pressure to achieve a prede... | 09/11/1990 |
| 4889092 | Fuel viscosity/density compensation device Apparatus and a method for effecting fuel viscosity/density compensation are disclosed. A combination of fuel flow through a viscosity sensitive annular orifice and a swirl-type orifice are utilized to create pressure differentials for driving a piston fo... | 12/26/1989 |
