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WO/2024/052008A1 |
A fuel pump for direct fuel injection for internal combustion engines comprising a pump body, a pumping chamber in which a piston (1) is slidably mounted, a spring (3) bearing on the one hand on the pump body and on the other hand at an ...
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WO/2024/054886A1 |
Systems and methods are provided for improving the accuracy of fuel metering for a motor-driven fuel pump, without the need for a matched-set controller. A characterization resistor value specific to the fuel pump or motor is used to cal...
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WO/2024/042198A1 |
A fuel pump assembly (10) for a fuel system of an internal combustion engine, the fuel pump assembly (10) comprising a pump head housing (18) and a main pump housing (12) provided with at least a portion of a plunger bore (14) for housin...
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WO/2024/042081A1 |
The invention relates to a high-pressure fuel pump (10) for a high-pressure fuel pump (10) for a fuel system for an internal combustion engine, having an inlet (11) for supplying fuel, having an outlet (34) for dispensing compressed fuel...
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WO/2024/022668A1 |
A fuel pump has a pump housing (16) and an inlet valve (12), which in turn has a valve element (30) and an annular valve body (34) that has an annular valve seat (43) and is fastened in the pump housing (16). According to the invention, ...
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WO/2024/013374A1 |
A fuel pump for the direct-injection of fuel for internal combustion engines comprises a pump body (5), a pump chamber (50) in which a piston (1) is slidably mounted, a spring (3) bearing against the pump body (5) and against one end (10...
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WO/2024/008737A1 |
A fuel pump comprises a pump body (2) and a valve (1). The valve (1) comprises a sleeve (11) of substantially tubular shape and extends along an axis of actuation (A) so as to define a housing for a coil (12), a tubular body (10) having ...
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WO/2024/003928A1 |
The present invention relates to a fuel injection system (100) for a direct injection internal combustion engine (60) and a method (200) of control thereof. The fuel injection system (100) comprises a fuel pump (110) mounted on a cylinde...
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WO/2023/247693A1 |
A fuel supply system (10) is disclosed for supplying a methanol-based fuel from a fuel tank (12) to an internal combustion engine (14). The fuel supply system (10) comprises: a main fuel conduit (16), which fluidly connects the fuel tank...
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WO/2023/243032A1 |
The present disclosure provides an internal combustion engine control device capable of simultaneously improving the stability and response of the transient response of the ejection pressure of a high-pressure fuel pump relative to a pre...
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WO/2023/238214A1 |
The present invention suppresses abrasion of a rod or a component where the rod contacts. An electromagnetic suction valve mechanism (electromagnetic valve mechanism) is provided with a suction valve (valve body), a rod engaging with the...
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WO/2023/222527A1 |
The invention relates to a fuel pump (1) comprising: a pumping chamber (3) with a pumping plunger (4) arranged to reciprocate within the pumping chamber (3); an inlet passage (5) at least indirectly connecting a low-pressure inlet of the...
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WO/2023/209949A1 |
The present invention provides a fuel pump that supplies fuel to a side having lower pressure than a seal member, which is prone to insufficient fuel supply, that achieves higher efficiency for a discharge flow rate, and that can prevent...
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WO/2023/206881A1 |
The present application relates to a dual-fuel pressurized injection device, comprising a housing, a driving piston, and a plunger. A plurality of pipelines and cavities are arranged in the housing, the driving piston is movably arranged...
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WO/2023/203199A1 |
The invention provides a drive assembly for a fuel pump for an internal combustion engine. The drive assembly comprises: a housing (50) and a tappet assembly (10) received within a tappet bore (52) provided in the housing (50). The tappe...
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WO/2023/203761A1 |
The present invention addresses the problem of reducing radiation sound from an electromagnetic valve mechanism. The electromagnetic valve mechanism is provided with a solenoid that drives a valve part. The solenoid has an electromagneti...
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WO/2023/199612A1 |
This control device for controlling a high-pressure fuel pump (103) is provided with: a plunger operation determination unit (801); a fuel-pressure rising evaluation unit (802); a closing valve determination unit (803); and an ejection a...
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WO/2023/186861A1 |
The invention relates to a method for lubricating an interface (26) between a piston (8) of a pump (4) for compressing a fluid and a shaft (18) configured to drive the piston (8), said method comprising the projection of a jet (24) of a ...
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WO/2023/180905A1 |
An improved high-pressure fuel pump (10) for a gasoline direct injection system is provided. The fuel pump (10) includes a pump body (12) defining a low-pressure side, a high-pressure side, and a pumping chamber (26) therebetween. The pu...
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WO/2023/117139A1 |
A pump actuator for use between a cam and a pump comprises a pump actuator body having a pad defined between a plunger facing surface and an opposite roller facing surface, where the plunger facing surface is recessed into the pump actua...
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WO/2023/110495A1 |
The invention relates to a piston pump, in particular a high-pressure fuel pump, comprising a pump housing (16), a pump piston (20), a housing-side guide portion (18), in which the pump piston (20) is guided, and at least one first seali...
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WO/2023/110497A1 |
The invention relates to a high-pressure fuel pump (10), which has a pump piston (18) that can be displaced in a longitudinal direction (28) in order to compress a fluid in the pumping chamber (16), wherein the high-pressure pump (10) ha...
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WO/2023/114122A1 |
A fuel return device couples to the high pressure side of a DI fuel system. The fuel return device provides for both continuous bleeding and occasional purging of fuel from the high pressure side to prevent issues related to vapor accumu...
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WO/2023/110488A1 |
A fuel pump, in particular a high-pressure fuel pump for a fuel injection system of an internal combustion engine, comprises an inlet port (24), to which a feed line can be fastened, and a filter device (48) which is arranged in the inle...
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WO/2023/110485A1 |
The invention relates to a piston pump (10), in particular a high-pressure fuel pump for an internal combustion engine, comprising a pump piston (20) which is received in a receiving opening (18) of a pump housing (16), a delivery chambe...
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WO/2023/104620A1 |
A piston pump (10) comprises a pump piston (20), a delivery chamber (28), a seal (32) arranged in a ring shape around the pump piston (20) and interacting at least intermittently with the latter, and an annular portion (34) which is arra...
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WO/2023/105024A1 |
The invention relates to a GDi fuel pump comprising an inlet valve assembly (38) arranged in an inlet passage of the pump housing. The inlet valve assembly (38) comprises a check valve comprising a seat member (50) cooperating with a val...
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WO/2023/099769A1 |
According to an aspect of the invention, there is provided a pump (101) for a fuel injection system. The pump (101) comprises: a main housing (112); a plunger housing (114) arranged to be coupled to the main housing (112); and a gasket (...
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WO/2023/099766A1 |
In a first aspect of the invention there is provided a fuel pump (1) comprising a valve assembly (30). The valve assembly (30) comprises a valve member (32) defining a valve axis (A), and an electromagnetically controlled armature assemb...
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WO/2023/072711A1 |
The invention relates to a high-pressure pump for a liquid fuel direct injection system for a motor vehicle, said high-pressure pump comprising a pump body comprising a low-pressure liquid fuel inlet, a high-pressure liquid fuel outlet a...
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WO/2023/066440A1 |
Invention relates to a connecting rod (10) for a high-pressure piston pump, comprising a crank pin end (12), and a piston end (14), in which the piston end (14) of the connecting rod (10) comprises a piston pin arrangement (18) configure...
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WO/2023/062684A1 |
The purpose of the present invention is to prevent a suction valve from closing due to fluid force when an electromagnetic coil is in an unenergized state. This electromagnetic suction valve comprises: a valve part that is in an open sta...
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WO/2023/057251A1 |
The invention relates to a high-pressure fuel pump (10) for a fuel system of an internal combustion engine, comprising a pump housing (12), a pump piston (22) which is guided in the pump housing (12) and has a first section (30) which is...
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WO/2023/058287A1 |
The present invention provides an electromagnetic intake valve mechanism and a fuel pump that can reduce the force of fuel pushing a valve body in the valve closing direction. The electromagnetic intake valve mechanism comprises a valve ...
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WO/2023/052039A1 |
The invention relates to a piston pump (16), in particular a high-pressure fuel pump, comprising a pump housing (24), a receiving chamber (30) which is provided in the pump housing (24) and which communicates with a fluid region (40), an...
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WO/2023/041611A1 |
A fuel pump includes a plunger which reciprocates within a bore of a housing. The plunger extends from a first end proximal to a pumping chamber to a second end distal from the pumping chamber and includes a sealing ring groove between t...
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WO/2023/036646A1 |
A cyclically operating pump comprises a pump housing (12) and an outlet stub (32) which is welded by means of a peripheral welded region (30) and, in its interior immediately adjacently to the welded region (30), has a first hydraulicall...
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WO/2023/032253A1 |
The present invention provides a fuel pump that prevents the generation of cavitation in the vicinity of a seat member in a valve mechanism. The fuel pump has a plunger that reciprocates, a compression chamber the capacity of which incre...
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WO/2023/031087A1 |
Injection pump (1) having a pump body (1a) provided with an inlet conduit (11) supplying an inlet chamber (2), a compression chamber (8) downstream from the inlet chamber under which a piston (9) reciprocates to distribute liquid fluid f...
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WO/2023/034888A1 |
A camshaft having a length that spans along a longitudinal axis. The camshaft has a front bearing journal opposite a rear bearing journal, wherein at least one of the front and/or the rear bearing journals has an asymmetric outer profile...
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WO/2023/026514A1 |
The purpose of the present invention is to provide a solenoid valve control device that is able to achieve silencing of a solenoid valve without failing to close the solenoid valve in a subsequent discharge operation of a fuel pump. To t...
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WO/2023/028295A1 |
A high-pressure fuel pump comprises: a variable speed direct current motor having a motor housing with a fuel inlet and a shaft; a pump drive housing secured to the motor housing and defining a drive chamber; an eccentric drive coupled t...
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WO/2023/011903A1 |
A piston pump (10) comprising a pump housing (16), a pump piston (20), a seal (32) and a spring device (46), wherein the seal is arranged, in some regions, between the pump housing (12) and the pump piston (20) and is urged in the axial ...
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WO/2023/006285A1 |
A high-pressure fuel pump (10) having an inlet valve (14) and a pressure-limiting valve (22) which fluidically connects a high-pressure region (29) to an inlet valve region (28c) located, in terms of geometry, between the inlet valve (14...
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WO/2023/006292A1 |
The invention relates to a piston pump (10), more particularly a high-pressure fuel pump, comprising: - a pump housing (12); - a pump piston (16), at least part of which is accommodated in a receiving opening (14) in the pump housing (12...
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WO/2023/006289A1 |
A high-pressure fuel pump (10) having an inlet (11) which is in the form of an inlet port (20) fixed to the pump housing (12), and a pressure-limiting valve (22) that fluidically connects a high-pressure region (29) to a low-pressure reg...
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WO/2023/006288A1 |
The invention relates to a high-pressure fuel pump (10) having a pressure-limiting valve (22) which fluidically connects a high-pressure region (29) to a low-pressure region (28) and opens towards the low-pressure region (28). The pressu...
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WO/2023/287709A1 |
A fuel pump assembly includes a fuel pump. The fuel pump includes a camshaft having a cam lobe. The camshaft is configured to rotate. The fuel pump includes a first cam roller and a second cam roller disposed about an outer surface of th...
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WO/2023/281992A1 |
A fuel pump according to the present invention includes: a pump head; a plurality of plunger barrel units that are mounted in parallel with the pump head and that include a plurality of pressurization chambers in which a plurality of plu...
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WO/2023/280929A1 |
A fuel pump comprises a housing (14) with a pumping chamber (20), an outlet passage (22) and a pumping plunger (30) which is reciprocally arranged within a plunger bore. A pressure relief valve assembly (12) is arranged in a pressure rel...
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