F02M2200/03

Electromagnetically actuated rate control valve, in particular for controlling the delivery rate of a high-pressure fuel pump

An electromagnetically actuable rate control valve for controlling a delivery rate of a high-pressure pump includes an electromagnet, a valve element, an armature shaft, and at least one strength element. The valve element is movable in an axial direction and is configured to open and to close the electromagnetically actuable rate control valve. The armature shaft transmits a force. The force is produced by the electromagnet and acts on the valve element in the axial direction. The at least one strength element is configured to raise at least the strength of the armature shaft. The armature shaft includes a needle region adjacent to the valve element and an armature region remote from the valve element. The needle region and the armature region are integral with each other.

High-pressure connector for a fuel delivery system

The present disclosure relates to fuel delivery systems for a motor vehicle. Some embodiments include a housing with a wall and a connector opening, a high-pressure connector including a wall circumferentially bordering a recess extending along a longitudinal central axis of the high-pressure connector, a radial indentation formed at the inner side in the wall in the housing connector region adjacent to the transition region, and an axial indentation formed at the outer side in the wall in the transition region adjacent to the intermediate region. The high-pressure connector may have a housing connector region, an intermediate region, and a transition region. An outer diameter of the high-pressure connector is larger in the housing connector region than in the intermediate region and the inner diameter is larger in the housing connector region than in the intermediate region. The wall of the housing delimits a recess around the connector opening. The housing connector region includes a protruding region suitable for making contact with the housing when said protruding region partially or fully enters the recess.

On-Off Valve For A Fuel Injection System, And High-Pressure Fuel Pump
20190162143 · 2019-05-30 · ·

Various embodiments include a valve comprising a valve body including a valve seat; and a valve element movable along a longitudinal axis to close the on-off valve by sealing against the valve seat. The valve body includes a conical lateral surface. The valve body includes a radially extending spring projection which is resilient in an axial direction and projects radially beyond the lateral surface.

FUEL INJECTOR ASSEMBLY
20190162145 · 2019-05-30 ·

A fuel injector assembly for a vehicle includes an engine head, a fuel injector, and a preloading insert. The engine head defines a bore wherein the bore includes a head region proximate to the corresponding combustion chamber. The pre-loading insert may be disposed within the bore at the head region. The pre-loading insert may be configured to apply a tensile hoop stress to the head region of the bore causing plastic deformation to the head region while also supporting the fuel injector within the bore. The fuel injector may be configured to dispense fuel into a combustion chamber.

Nozzle of a fuel injector and fuel injector having such a nozzle

The present invention relates to a nozzle of a fuel injector that comprises a pivotably symmetrical nozzle body having a hollow space for introducing a nozzle needle, a nozzle tip that is provided at one longitudinal end of the nozzle body and has openings for discharging fuel, a housing contact surface that is provided at the other longitudinal end of the nozzle body and serves the pressing at a housing of a fuel injector, and an overhang surface that is provided in the longitudinal extent of the nozzle body between the nozzle tip and the housing contact service and that serves the placement of a nozzle clamping nut. The nozzle is characterized in that the minimal distance of the pivot axis of the nozzle body from the overhang surface is smaller than the minimal distance of the pivot axis of the nozzle body from the housing contact surface.

Gasoline delivery pipe
10302055 · 2019-05-28 · ·

To improve the ability to layout delivery pipes by maintaining flexibility in a mounting position of an inlet pipe to a delivery pipe main body. A delivery pipe for gasoline comprising a flat shaped delivery pipe main body 1 provided with a pair of facing wide walls 2, 3 and a pair of facing narrow walls 4, 5 that are more narrow than the pair of wide walls 2, 3, wherein an inlet pipe 7 is disposed and connected to the narrow wall 4 of the delivery pipe main body 1, and a connecting portion 10 of the inlet pipe 7 and the narrow wall 4 is covered continuously by a reinforcing material 11 from the connecting portion 10 over the wide walls 2, 3, thereby reinforcing the connection portion 10.

High-pressure fuel pump and pressure control device
10294905 · 2019-05-21 · ·

The present disclosure relates to a device for pressure control, including a rod and a plunger. The rod has a first end region delimiting a pressurized space and is movable along an axis between a top dead center and a bottom dead center. The plunger has a traverse substantially perpendicular to a plunger axis transmitting kinetic energy from a plunger drive to the rod in a contact region between a traverse surface and a second end region of the rod arranged opposite the first end region. The rod includes a calotte-shaped end region in the contact region of the rod and the traverse includes a calotte-shaped recess in the contact region of the traverse.

SOLENOID VALVE

The invention relates to a solenoid valve having an actuator body (17), in which a magnet coil (15) that interacts with a magnet core (16) is arranged and which interacts with an armature (14) that can be moved relative to the magnet core between two end positions and is acted upon by the spring force of an armature spring (13) in a movement direction pointing away from the magnet core (16). The magnet core and the armature have stop surfaces (18a, 18b) which are interrupted by a recess (29) that receives the armature spring. According to the invention, a solenoid valve is provided which is improved with respect to the function of the solenoid valve and the stress on the stop surfaces (18a, 18b) that causes wear. This is achieved in that the magnet core (16) and/or the armature (14) have/has a design (30, 31), in particular a spherical or toroidal design, which reduces the stress on the edges in the region of the stop surfaces (18a, 18b).

Holder for fastening a fuel distributor to an internal combustion engine, and connecting method
10202955 · 2019-02-12 · ·

A holder serves for fastening a component, in particular a fuel distributor, onto an internal combustion engine. A holding element that has a component-side connecting segment is provided. The holding element is connectable at the component-side connecting segment to the component. The holding element furthermore has a fastening-means-side connecting segment at which the holding element is fastenable via a fastening means onto the internal combustion engine. A receiving part and a fastening sleeve are provided. The receiving part serves to connect the fastening sleeve to the fastening-means-side connecting segment of the holding element. The fastening sleeve has a through opening through which the fastening means is guidable. An assemblage having such a holder is also described. A connecting method is furthermore described.

Electromagnetic valve

It is important not to form the partial bump in the collision structural part, however the fixed core and the movable core are relatively inclined due to an accumulation of tolerances and therefore even if each collision structural part of the fixed core and the movable core in formed in a flat shape, the fixed core and the movable core are contacted with not the whole of the collision structural parts but a part of the collision structural parts at the moment of the collision. In a case in which the collision structural part is formed in a ring shape or an intermittent ring shape, the fixed core and the movable core are contacted with each other at outer peripheral parts. Thus, when the fixed core and the movable core are collided with each other, a high stress is applied to the outer peripheral parts contacted first. Accordingly, the shape of the outer peripheral parts of the collision structural parts is important, however since such a part, which is a tiny protruding shape, requires high processing accuracy, to reduce stress occurred during collision while keeping productivity is difficult. In the present invention, an R-shaped part and a flat part are provided in order from an outer peripheral side of a collision structural part. Further, the R-shaped part and the flat part are connected in a tangent manner.