# US 10,865,752 B2 · Metering valve for metering a fluid which serves in particular for fuel injection systems, mounting system for injection systems, and injection system having such a metering valve

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- Number: US 10,865,752 B2
- Document ID: US10865752B2
- Status: Granted
- Kind: B2
- Application number: 16/179,600
- Filed: 2018-11-02
- Published: 2019-05-09
- Granted: 2020-12-15
- Earliest claimed: 2017-11-06
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Andreas Rehwald; Prakash Gurushantappa Yadawad; Rao Bharath Narahari; Sunil Makarabbi
- Web page: https://patentgrep.com/patent/US10865752B2

## CPC

- F02M 61/14: Arrangements of injectors with respect to engines; Mounting of injectors
- F02M 55/025: {Common rails}
- F02M 61/04: having valves {, e.g. having a plurality of valves in series}
- F02M 61/168: {Assembling; Disassembling; Manufacturing; Adjusting}
- F02M 63/0031: {characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details}
- F02M 63/0225: {Fuel-injection apparatus having a common rail feeding several injectors (F02M63/0003 takes precedence); Means for varying pressure in common rails; Pumps feeding common rails}
- F02M 2200/09: Fuel-injection apparatus having means for reducing noise
- F02M 2200/853: involving use of quick-acting mechanism, e.g. clips
- F02M 2200/856: characterised by mounting injector to fuel or common rail, or vice versa
- F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

## Abstract

A fuel injection valve of a fuel injection system includes a connector piece that is insertable at least partly into a receiving space of a connector body of a fluid-conveying component. In the installed state a support part is disposed on the connector piece, and the connector piece is mounted via the support part on the connector body. The support part has a spherical support surface with which the support part braces at least indirectly against the connector body in order to implement the mounting of the connector piece directly or indirectly on the connector body.

## Claims

### Claim 1

A fluid metering valve comprising:
a support that includes a spherical support surface; and
a connector:
that is insertable at least partly into a receiving space of a connector body of a fluid-conveyor;
on which the support is configured to be disposed in an installed state; and
that is mountable on the connector body in the installed state via the support with its spherical support surface directly or indirectly against the connector body.

### Claim 2 (depends on 1)

The metering valve of claim 1, wherein, in the installed state, the support interacts positively with the connector at least on one side when viewed along a longitudinal axis of the connector.

### Claim 3 (depends on 1)

The metering valve of claim 1, wherein the support is fittable onto the connector radially with respect to a longitudinal axis of the connector.

### Claim 4 (depends on 1)

The metering valve of claim 1, wherein the support has a U-shaped recess that is configured so that the connector is insertable into the U-shaped recess radially with respect to a longitudinal axis of the connector.

### Claim 5 (depends on 4)

The metering valve of claim 4, wherein the support has on the U-shaped recess a U-shaped connecting rib that is configured so that upon assembly the connecting rib engages into at least one depression configured on the connector.

### Claim 6 (depends on 5)

The metering valve of claim 5, wherein the depression configured on the connector piece is embodied as a circumferential annular groove.

### Claim 7 (depends on 1)

The metering valve of claim 1, wherein, in the installed state, the support is fastened on the connector via a retainer.

### Claim 8 (depends on 1)

The metering valve of claim 1, wherein, in the installed state, the support is fastened on the connector via an expanding ring.

### Claim 9 (depends on 1)

The metering valve of claim 1, wherein the support has a depression into which a retainer is at least partly inserted in the installed state.

### Claim 10 (depends on 1)

The metering valve of claim 1, wherein the support has a depression into which an expanding ring is at least partly inserted in the installed state.

### Claim 11 (depends on 1)

The metering valve of claim 1, further comprising an at least partly spherically shaped decoupler that, in the installed state, abuts against the spherical support surface of the support, wherein the connector is mountable at least indirectly on the connector body via the support and the decoupler.

### Claim 12 (depends on 1)

The metering valve of claim 1, wherein the fluid metering valve is configured to meter fuel of a fuel injection system.

### Claim 13

A mounting system mounting a fluid metering valve on a connector body of a fluid-conveyor of a fuel injection system, wherein the fluid metering valve includes:
a support that includes a spherical surface; and
a connector:
that is insertable at least partly into a receiving space of the connector body;
on which the support is configured to be disposed in an installed state; and
that is mountable on the connector body in the installed state via the support bracing with its spherical support surface directly or indirectly against the connector body.

### Claim 14

An injection system comprising:
a fluid-conveyor; and
a metering valve that includes:
a support that includes a spherical surface; and
a connector:
that is insertable at least partly into a receiving space of a connector body of the fluid-conveyor;
on which the support is configured to be disposed in an installed state; and
that is mountable on the connector body in the installed state via the support bracing with its spherical support surface directly or indirectly against the connector body.

### Claim 15 (depends on 14)

The injection system of claim 14, wherein the injection system is configured for fuel injection of a mixture-compressing spark-ignited internal combustion engine.
