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Class 123/456 - Common rail system


Subclass of Class 123 - Internal-combustion engines
Definition: Subject matter wherein the distributor is a fuel supply
No. of patents: 927
Last issue date: 04/24/2012


1                      
NumberTitleIssue Date
8161945In-line noise filtering device for fuel system
A fuel injection system includes a fuel supply rail having a supply opening. A fuel injector is coupled to the fuel supply rail and configured to control the delivery of fuel from the fuel supply rail through the supply opening. A noise filtering device engages an u...
04/24/2012
8100111Fuel injection system for an internal combustion engine
A fuel injection system of the common rail type for an internal combustion engine with two rows of cylinders is to be designed such that the deviations in the injection quantities of their injectors from one another are as slight as possible. The fuel injection syst...
01/24/2012
8091533Engine assembly including centrally located fuel rail
An engine assembly may include an engine block, a cylinder head, a fuel injector, and a fuel rail. The engine block may define a cylinder bore. The cylinder head may be coupled to the engine block and may define an intake port, an exhaust port, and a centrally locat...
01/10/2012
8074624Fuel system component for a direct injection internal combustion engine
A fuel system component for a direct injection internal combustion engine. The component includes a fuel rail and a plurality of direct injection fuel injectors which are rigidly attached to the rail. Each fuel injector has an elongated body as well as a harness ass...
12/13/2011
8056537Engine having fuel injector with actuator cooling system and method
An internal combustion engine, such as a direct injection compression ignition diesel engine, includes an engine housing having a plurality of cylinders and a plurality of fuel injectors associated one with each of the cylinders. The fuel injectors each include a fi...
11/15/2011
8047182Fuel delivery system for heating fuel therein
A fuel delivery system comprises a fuel rail having a flow channel therein. The fuel delivery system further comprises a fuel injector cup that includes a base at a first end thereof, an opening at a second end thereof opposite the first end, and an inner cavity dis...
11/01/2011
8042519Common rail fuel system with integrated diverter
An internal combustion engine includes a fuel system having a first fuel rail with an integrated diverter portion coupled to a high-pressure pump and separated from a common rail portion by a flow restriction device. The first fuel rail includes a pressure sensor co...
10/25/2011
8037868In-line noise filtering device for fuel system
A fuel injection system includes a fuel supply rail having a supply opening. A fuel injector is coupled to the fuel supply rail and configured to control the delivery of fuel from the fuel supply rail through the supply opening. A noise filtering device engages an u...
10/18/2011
7997253Method for controlling the overpressure in a fuel-supply system of a common-rail type
A method for controlling the overpressure in a fuel-supply system of a common-rail type for an internal-combustion engine provided with a number of cylinders; the method has the steps of: supplying fuel under pressure to a common rail connected to a number of inject...
08/16/2011
7942132In-line noise filtering device for fuel system
A fuel injection system includes a fuel supply rail, a fuel injector configured to control the delivery of fuel from the fuel supply rail, and a noise filtering device engaging an upstream end of the fuel injector and/or positioned at least partially within the fuel...
05/17/2011
7931007Fuel-injection device
The fuel-injection device is characterized by an especially low-noise design. The fuel-injection device includes at least one fuel injector and a fuel rail having at least one pipe connection, the fuel injector being introduced into a receiving bore of the pipe conn...
04/26/2011
7913667Fuel supply apparatus for vehicle
Fuel pipes guide fuel from a fuel tank provided in a rear area of the vehicle to a low-pressure fuel supply system and a high-pressure fuel supply system, respectively, for injecting the fuel to an engine provided in a front area of the vehicle. A branch point betwe...
03/29/2011
7905216Common rail and method of manufacturing common rail
To provide a common rail that can prevent stress concentration from arising locally with respect to intersecting portions between a flow path and branching paths and can prevent damage such as cracks. A common rail that is used in a fuel injection system of a...
03/15/2011
7900603Automobile-use high pressure fuel injection accumulator-distributor and method of production of the same
An automobile-use high pressure fuel injection accumulator-distributor comprised of a body of an automobile-use high pressure fuel injection accumulator-distributor to which pipe attachment holders for attaching fuel distribution pipes for distributing fuel to injec...
03/08/2011
7861691Controller for accumulator fuel injection system
A common-rail fuel injection system is equipped with a common-rail, a fuel pump 11, and an injector. The fuel pump has a plurality of fuel pumping systems. A pressure sensor is provided at a fuel inlet of the injector. When the fuel pump supplies fuel to each...
01/04/2011
7856961Method for automatic pressure control
A method for automatically controlling the pressure of a common rail system on an A side and a common rail system on a B side of a V-type internal combustion engine, in which the rail pressure (pCR(A)) of the common rail system on the A side is automatically control...
12/28/2010
7849836Cooling feature for fuel injector and fuel system using same
A thermal load control assembly for a fuel injector includes a rail inlet port, a cooling inlet port and a fuel drain port. A leakage path channels leaked fuel originating from the rail inlet port to the fuel drain port. A cooling path channels fuel originating from...
12/14/2010
7827962High-pressure accumulator body with integrated distributor block
The invention relates to a fuel injection system for a multi-cylinder internal combustion engine having a first high-pressure accumulator and having a second high-pressure accumulator. The fuel injection system also has a high-pressure pump, wherein the first and th...
11/09/2010
7814886Shut-off valve for controlling the flow rate of a fuel pump for an internal combustion engine
A shut-off valve of the flow rate of a fuel pump for an internal combustion engine; the shut-off valve is provided with: a tubular cylindrical body, which is closed on top, displays a cylindrical seat, the lower portion of which performs the function of fuel pipe, a...
10/19/2010
7814887Method and device for controlling a pump connected to a fuel rail
In a method and a device for controlling a pump (14, 20) connected to a fuel rail (12) in an internal combustion engine, in order to provide a predetermined quantity of fuel in the fuel rail (12) for a predetermined operating state, the followin...
10/19/2010
7810471Two-piece injector cup and method of manufacturing same
A fuel delivery system comprises a fuel rail having an outlet, and a fuel injector cup associated with the fuel rail outlet. The fuel injector cup includes a cup portion and a ring portion. The cup portion comprises a body, and the body includes a base at a first en...
10/12/2010
7810472Fuel pressure sensor/sensor mount assembly
A fuel pressure sensor/sensor mount assembly for use in a fuel injection system equipped with fuel injectors which inject fuel, as supplied from an accumulator through fuel pipes, into a multi-cylinder internal combustion engine mounted in an engine compartment of a...
10/12/2010
7802558Fuel delivery system
A fuel delivery system for an internal combustion engine, the system comprising a common rail fuel reservoir having a primary rail axis and comprising a plurality of outlets at spaced locations along said rail axis and a plurality of fuel injectors arranged at space...
09/28/2010
7779816Control and regulation method for an internal combustion engine provided with a common-rail system
An open-loop and closed-loop control method for an internal combustion engine (1) with a common rail injection system, in which a rail pressure (pCR) is subject to closed-loop control during normal operation. A second actual rail pressure is determined by a s...
08/24/2010
7765984Fuel injection valve
The fuel injection device according to the present invention is distinguished by a particularly effective sound-decoupling construction. The fuel injection device has at least one fuel injection valve, a receptacle bore for the fuel injection valve in a cylinder hea...
08/03/2010
7762234Fuel delivery system diagnostics after shut-down
A method for operation of a fuel delivery system in an internal combustion engine including a lower pressure pump, a higher pressure pump fluidly coupled downstream of the lower pressure pump, and a fuel rail fluidly coupled downstream of the high pressure pump. The...
07/27/2010
7748364Fuel injection system with a plurality of pressure reservoirs
The invention relates to a fuel-injection system (102), in which a rail (120) is provided for each injector between a high-pressure fuel pump (111) and said injectors (116). ...
07/06/2010
7735472High-pressure fuel supply apparatus and control apparatus for internal combustion engine
In an internal combustion engine provided with a high-pressure fuel pump, if the discharging rate of the high-pressure fuel pump is greater than the injection quantity of fuel injected from a injector with the high-pressure fuel pump remaining uncontrollable due to ...
06/15/2010
7730876Fuel injection system
A fuel injection system for an internal combustion engine includes an engine management system, a return conduit connected to a low-pressure fuel system, and a common rail for storing and supplying a relatively high-pressure fuel to injectors. Each injector has a no...
06/08/2010
7717087Connection for high-pressure chambers of fuel injectors
A connection point of a chamber subjected to high pressure in a body subjected to high pressure of a high-pressure injection system for fuel at a bore extending substantially vertically through the body. In the chamber subjected to high pressure of the body, a cylin...
05/18/2010
7712452Fuel delivery system for an aircraft engine
An engine includes a fuel delivery system having a fuel rail and fuel delivery devices, such as fuel injectors, that deliver fuel to corresponding cylinder assemblies. The use of the fuel rail and fuel injectors allows unused fuel to be purged from the engine at the...
05/11/2010
7699041Fuel distribution tube for direct injection fuel rail assemblies
A fuel distribution tube for a direct injection fuel rail assembly includes an elongate cylindrical conduit, a plurality of first scalloped features that receive fuel injector sockets formed in the conduit, and plurality of second scalloped features that receive mou...
04/20/2010
7694664Fuel rail damper
A damper for dampening pressure pulsations in a quantity of fuel within a fuel rail of an internal combustion engine. The damper includes a non-metallic membrane having a thickness no more than about 0.009 inch. The membrane includes an exterior surface and a portio...
04/13/2010
7690356Internal combustion engine
An internal combustion engine includes a cylinder head having a plurality of intake ports; throttle devices including a plurality of respective intake passages equipped with throttle valves therein; a plurality of fuel injection valves for injecting fuel into the co...
04/06/2010
7681553Nested three chambers, fluid pulsation dampener
A reactive acoustic dampener includes a nested three chambered configuration and connecting tubes that may be fully integrated into the fuel rail of a fuel injection system. ...
03/23/2010
7669585Fuel injection system
A fuel injection system (1) with at least one fuel injector (1a) and a heatable adapter (1b), which is connected to a fuel rail (1c) and to the fuel injector (1a) of the fuel injection system (1);...
03/02/2010
7624719Method for controlling a fuel supplying device of an internal combustion engine
Disclosed is a fuel supplying device of an internal combustion engine, comprising a low-pressure circuit, a high-pressure pump coupled to the low-pressure circuit and conveys fuel into a fuel reservoir, a volume flow control valve assigned to the high-pressure pump,...
12/01/2009
7614385Gas engine
A compression ignition internal combustion engine which operates using a methane based fuel and an ignition initiator. The fuel and method of operating the engine can be employed in a range of applications such as, for example, road or marine vehicles or in static a...
11/10/2009
7603985Common rail
A small-diameter circular column portion having a diameter slightly smaller than that of a small-diameter hole (press-fitting hole) of an inside-outside communication hole is formed at a press-fitting end portion of a bush. A narrow annular clearance is formed betwe...
10/20/2009
7603984Accumulator injection system for an internal combustion engine
Disclosed is a high-pressure accumulator injection system (10) for an internal combustion engine, preferably a diesel engine. Said injection system (10) comprises a number of injection valves (18) which are connected to a high-pressure conveying...
10/20/2009
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