Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7444990 | Fuel line check valve A check valve includes a body defining a passageway through which fuel flows in a first fuel-flow direction during pump operation. The check valve also includes a seat, a seal member, and a biasing member biasing the seal member toward the seat. The seal member is m... | 11/04/2008 |
| 7413160 | Method for determining a closing time of a closing element and circuit arrangement In a method for determining the closure time for a valve, operated by a piezoelectric actuator, in order to record the closing time, the voltage at the piezoelectric actuator is recorded and the time is recorded at which the voltage has a maximum difference value fr... | 08/19/2008 |
| 7380541 | Fuel-injection system for an internal-combustion engine The injection system comprises a high-pressure pump with variable flowrate, having at least one pumping element provided with an intake valve in communication with an intake pipe and a delivery valve in communication with a delivery pipe. A pressure regulator is set... | 06/03/2008 |
| 7370637 | Arrangement in fuel injection apparatus An arrangement in the fuel injection system for controlling the fuel injection, the arrangement comprising a body part with a space arranged therein, through which space the fuel to be injected flows during operation, the space further having an inlet opening and an... | 05/13/2008 |
| 7318414 | Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine A fuel injection system operates under a substantially constant pump speed and creates multi-pressure levels by diverting the fuel flow. Fuel pressure can be switched from one steady pressure level to another level on-demand instantly. This superimposes and overlaps... | 01/15/2008 |
| 7228849 | Conical concave cap pressure relief valve A pressure relief valve useful in vehicle fuel delivery systems includes a spring biased, concave conical flow directing surface and a spherical valve seat. ... | 06/12/2007 |
| 7111639 | Pressure regulator including a press-fit spring retainer A pressure regulator includes a housing, a divider including a first valve member, and a second valve member. The housing includes an inlet and an outlet, and defines an interior volume. The divider separates the interior volume into first and second chambers, and i... | 09/26/2006 |
| 7080507 | Exhaust gas purifier In order to improve the decrease of the catalytic action and the deterioration of the exhaust purification performance, a catalyst installed in the exhaust pipe of an engine and a secondary air pump for supplying secondary air into the exhaust pipe are provided, and... | 07/25/2006 |
| 7040344 | Pressure regulator including a fixed valve ball and method of assembling the same A pressure regulator includes a housing, a divider, and a valve. The housing includes an inlet and an outlet. The divider separates the housing into a first chamber and a second chamber. And the valve includes a spherical valve ball and a seat. The spherical valve b... | 05/09/2006 |
| 7040291 | Method for regulating the pressure in a fuel accumulator of an internal combustion engine A method for regulating the pressure in a fuel accumulator of an internal combustion engine, in particular in a common rail system is described. The provision of different regulating modes for regulating the pressure in the fuel accumulator is known from the related... | 05/09/2006 |
| 7025044 | Pump assembly and method A pump assembly includes a high-pressure pump that flows pressurized working fluid in a fuel injection system of a diesel engine. The assembly includes a pilot-operated inlet throttle valve that receives a flow of low-pressure fluid from a feed pump and controls the... | 04/11/2006 |
| 7019436 | Time- and event-controlled activation system for charging and discharging piezoelectric elements The invention describes an apparatus and a method for charging or discharging a piezoelectric element of a system, e.g., for a fuel injection system. The method and apparatus are characterized in that the current of a system is regulated as a function of a time char... | 03/28/2006 |
| 6966302 | Fuel system and flow control valve A valve for controlling flow of a fluid includes a valve body defining at least in part an inlet, an outlet, at least one chamber, and an orifice in communication with the chamber. A valve member is received at least in part in one chamber for reciprocation or rotat... | 11/22/2005 |
| 6945265 | Regulator with multiple flow diffusers A flow-through pressure regulator includes a retainer that secures a diaphragm relative to a seat, and includes an intermediate portion, an end portion and a base portion. The intermediate portion extends along a longitudinal axis and is fixed with respect to the se... | 09/20/2005 |
| 6918381 | Fuel return valve A fuel return valve comprises a housing and a closing unit, a first passage, which is line-connected to a fuel pump, a second passage, which is line-connected to an internal combustion engine, and a third passage, which is line-connected to the fuel tank, as well as... | 07/19/2005 |
| 6886590 | Seal assembly for fuel pressure regulator A pressure regulation assembly of a fuel supply includes a receptacle, an inlet connectable to the fuel supply and in fluid communication with the receptacle, an outlet in fluid communication with the receptacle, and a pressure regulator mounted in the receptacle to... | 05/03/2005 |
| 6817344 | Fuel supply system A fuel supply system for an internal combustion engine is provided. The system includes a first pump adapted to generate a flow of fuel and a second pump in fluid connection with the first pump and adapted to increase the flow of fuel to a predetermined pressure. A ... | 11/16/2004 |
| 6769635 | Mixed mode fuel injector with individually moveable needle valve members A fuel injector includes a homogenous charge nozzle outlet set and a conventional nozzle outlet set controlled respectively, by first and second needle valve members. One of the needle valve members moves to an open position while the other needle valve member remai... | 08/03/2004 |
| 6752170 | Fuel pressure regulating valve There is disclosed a pressure regulating valve which effectively reduces a noise of a fuel pressure regulating valve without relation to a flow amount of a fuel. In this valve, a flow collision preventing member (35) is fitted to an upper end opening portion ... | 06/22/2004 |
| 6655362 | High-pressure fuel pump with variable delivery quantity A high-pressure fuel pump which is suitable above all for use in internal combustion engines with direct gasoline injection, in which the pressure surge upon opening of a check valve between the high-pressure line and the pumping chamber of the fuel feed ... | 12/02/2003 |
| 6647968 | Back pressure valve for fuel injection system A method and apparatus to increase the fuel economy of a diesel engine having an injection system fuel rail by increasing the flow rate of fuel being returned to the tank hence decreasing the temperature of the fuel returned to the tank from the fuel rail... | 11/18/2003 |
| 6622702 | Common rail fuel injection device When common rail pressure Pr is predetermined pressure Prai, which is low such that it is lower than the pressure for the initiation of fuel injection by the injectors (step 1), air-extraction pulse width Pwai, which is elected in accordance with a fixed ... | 09/23/2003 |
| 6619314 | Apparatus and method for sealing a fuel component in a fuel communication passage A fuel component assembly having a fuel component disposed between a base and a cover, which prevent fluid communication to an exterior thereof. The fuel component defines at least one aperture, the base supports the fuel component and defines a passage i... | 09/16/2003 |
| 6595189 | Method of reducing noise in a mechanically actuated fuel injection system and engine using same The present invention finds application in engines using mechanically actuated electronically controlled fuel injectors having direct control needle valves. In valves such as these, a spill control valve member controls fuel pressurization within the inje... | 07/22/2003 |
| 6564776 | Fuel injection system Disclosed is a fuel injection system, in particular a common rail system, for fuel delivery in internal combustion engines, in particular diesel engines of commercial vehicles, with a low pressure circuit in which at least one low-pressure feed pump suppl... | 05/20/2003 |
| 6446612 | Fuel injection system, components therefor and methods of making the same A method and apparatus to increase the fuel economy of a diesel engine having an injection system fuel rail by increasing the flow rate of fuel being returned to the tank hence decreasing the temperature of the fuel returned to the tank from the fuel rail... | 09/10/2002 |
| 6334460 | Pressure regulator baffle seat with radial flow paths A flow-through pressure regulator includes a housing having an inlet and an outlet offset along a longitudinal axis. The housing is separated by a divider into a first chamber and a second chamber. The divider has a passage that communicates the first cha... | 01/01/2002 |
| 6279539 | Hydraulically actuated fuel injector with cold start features A hydraulically actuated fuel injector includes an injector body which has an outer surface. An armature cavity is defined by the injector body and a solenoid. The solenoid includes an armature, which is positioned within the armature cavity. Attached to ... | 08/28/2001 |
| 6269828 | Pressure regulator valve seat with mutually orthogonal flow channels A flow-through pressure regulator includes a housing having an inlet and an outlet offset along a longitudinal axis. The housing is separated by a divider into a first chamber and a second chamber. The divider has a passage that communicates the first cha... | 08/07/2001 |
| 6247452 | Fuel injection valve for internal combustion engines A fuel injection valve for internal combustion engines, having an axially displaceable valve member which is disposed in a valve body. On an end toward an engine combustion chamber the valve member has a conical valve sealing face with which the valve mem... | 06/19/2001 |
| 6196193 | Fuel injection device A fuel device including a high-pressure fuel source from which fuel is supplied to fuel injection valves. The fuel injection valves are controlled with the aid of a valve that is driven by a piezoelectric or magnetostrictive drive mechanism. With the aid ... | 03/06/2001 |
| 6186120 | High pressure pump for supplying fuel in fuel injection system of internal combustion engines A high-pressure pump for supplying fuel in a fuel injection system of an internal combustion engine, including a common rail injector system. The fuel injection system includes a low-pressure part that contains a fuel tank and a prefeed pump and a high-pr... | 02/13/2001 |
| 6155234 | Method of controlling a controlled variable with a limited controller action A method for controlling a pressure regulating valve is described. An actuating value with which the pressure regulating valve is driven is determined from a pilot control value and a controller action which depend on an actual value and a desired value o... | 12/05/2000 |
| 5720263 | Device for supplying internal combustion engine with fuel from supply A device for supplying an internal combustion engine with fuel has a supply container from which the fuel is supplied and having an opening, a feed pump arranged in the supply container and insertable into the supply container through the opening, a closu... | 02/24/1998 |
| 5623910 | Check and vent valve assembly A combination check and vent valve assembly for an automotive engine fuel system. The valve assembly has a fuel passage through a housing with an inlet communicating with a fuel pump outlet and an outlet to supply fuel to the engine. A check valve is disp... | 04/29/1997 |
| 5522369 | System and method for controlling delivery of gaseous fuel to an internal combustion engine A fuel delivery system which includes a source of pressurized fuel (18-22), at least one fuel injector (14) in fluid communication with the source (18-22), a pressure regulator (34) for delivering the pressurized fuel to the fuel injector (14), a pressure... | 06/04/1996 |
| 5367998 | Fuel injection system for an engine A fuel injection and control system for a V-type, two cycle, crankcase compression, internal combustion engine. The fuel injection system includes fuel injectors positioned in the valley of the engine and which are supplied with fuel under pressure from a... | 11/29/1994 |
| 5239969 | Mechanical fuel injector for internal combustion engines Purely mechanical fuel injector for internal combustion engines utilizes a single plunger piston within a plunger barrel for fuel pumping, fuel/air mixing, and fuel injection functions. The plunger piston is reciprocated by a cam follower engaging a cam r... | 08/31/1993 |
| 5088463 | Fuel supply system for internal combustion engines A fuel supply system for internal combustion engines wherein fuel is supplied to a fuel rail and, in turn, to fuel injectors which are electronically controlled to provide fuel to the cylinders of the engine including a fuel pressure regulator for control... | 02/18/1992 |
| 5035223 | Fuel injection control system for an internal combustion engine A fuel injection system has a fuel injector provided for injecting fuel directly in a cylinder of an engine and a fuel pump for supplying the fuel to the fuel injector passing through a fuel supply passage. Two fuel return passages are provided for commun... | 07/30/1991 |
