# US 10,871,308 B2 · Heating block half-shell and heating block for avoiding static air bubbles

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- Number: US 10,871,308 B2
- Document ID: US10871308B2
- Status: Granted
- Kind: B2
- Application number: 15/757,524
- Filed: 2016-08-24
- Published: 2018-09-06
- Granted: 2020-12-22
- Earliest claimed: 2015-09-03
- Assignees: Bosch Termotecnologia S.A.
- Applicants: Bosch Termotecnologia S.A.
- Inventors: Florian Loser; Christian Englisch; Gebhard Mayer
- Web page: https://patentgrep.com/patent/US10871308B2

## CPC

- F24H 9/0015: {in water channels}
- A47J 31/542: {Continuous-flow heaters}
- F24H 1/103: {with bare resistances in direct contact with the fluid}
- F24H 1/121: {using electric energy supply}
- H05B 3/40: Heating elements having the shape of rods or tubes (H05B3/62, H05B3/68, H05B3/78 take precedence)
- F24H: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22)
- A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

A continuous flow heater includes a heating block, where the heating block includes a heating block half-shell for a continuous flow heater. The half-shell includes a partial wall for a heating channel that includes at least one deflection area for a liquid flow. The half-shell further includes, in the deflection area, at least one pin that, in its longitudinal direction, protrudes into the heating channel.

## Claims

### Claim 1

A heating block half-shell for a continuous flow heater, the heating block half-shell comprising:
a partial wall of a heating channel, wherein the heating channel includes a deflection area for a liquid flow; and
at least one pin that is in the deflection area and that, in its longitudinal direction, protrudes into the heating channel,
wherein the deflection area, in a longitudinal section that is parallel to a flow path plane, includes a section that is guided essentially along one-half of an elliptic ring.

### Claim 2 (depends on 1)

The heating block half-shell of claim 1, wherein the at least one pin extends essentially perpendicularly with respect to a flow path plane in which the flow path extends.

### Claim 3 (depends on 1)

The heating block half-shell of claim 1, wherein the deflection area in the flow direction is adjoined by an essentially straight section of the heating channel; and
the at least one pin is situated in an inlet zone of the deflection area in which a liquid flow undergoes no change in direction or a change in direction of at most 45° compared to the essentially straight section.

### Claim 4 (depends on 1)

The heating block half-shell of claim 1, wherein the deflection area in the flow direction is adjoined by an essentially straight section of the heating channel; and
the at least one pin is situated in an outlet zone of the deflection area up to which a liquid flow has undergone a change in direction by at least 135° with respect to the essentially straight section.

### Claim 5

A heating block for a continuous flow heater, the heating block half-shell comprising:
a partial wall of a heating channel, wherein the heating channel includes a deflection area for a liquid flow; and
at least one pin that is in the deflection area and that, in its longitudinal direction, protrudes into the heating channel,
wherein the deflection area is symmetrical with respect to a plane of symmetry, and the at least one pin includes at least two pins that are likewise symmetrical with respect to the plane of symmetry.

### Claim 6

A heating block for a continuous flow heater, the heating block half-shell comprising:
a partial wall of a heating channel, wherein the heating channel includes a deflection area for a liquid flow; and
at least one pin that is in the deflection area and that, in its longitudinal direction, protrudes into the heating channel,
wherein the at least one pin includes an exposed end with a connecting element that is configured for connection to an exposed end of a counter pin of a second heating block half-shell.

### Claim 7

A heating block for a continuous flow heater, the heating block comprising:
a heating channel that includes at least one deflection area for a liquid flow; and
at least one pin that is in the at least one deflection area and that, in its longitudinal direction, protrudes into the heating channel,
wherein the at least one pin extends essentially perpendicularly with respect to a flow path plane in which a flow path extends.

### Claim 8 (depends on 7)

The heating block of claim 7, wherein the at least one deflection area includes at least two deflection areas, at least one of which is provided without any of the at least one pin.

### Claim 9

A heating block, for a continuous flow heater, the heating block comprising:
a heating channel that includes at least one deflection area for a liquid flow; and
at least one pin that is in the at least one deflection area and that, in its longitudinal direction, protrudes into the heating channel,
wherein the heating block includes two heating block half-shells, at least one of which includes a partial wall of the heating channel and includes one or more of the at least one pin,
wherein the deflection area, in a longitudinal section that is parallel to a flow path plane, includes a section that is guided essentially along one-half of an elliptic ring.

### Claim 10

An electric continuous flow heater comprising a heating block, wherein the heating block includes:
a heating channel that includes at least one deflection area for a liquid flow; and
at least one pin that is in the at least one deflection area and that, in its longitudinal direction, protrudes into the heating channel,
wherein the at least one pin extends essentially perpendicularly with respect to a flow path plane in which a flow path extends.