# US 11,306,945 B2 · Heating system for heating a fluid medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,945 B2 - Document ID: US11306945B2 - Status: Granted - Kind: B2 - Application number: 16/563,421 - Filed: 2019-09-06 - Published: 2020-03-12 - Granted: 2022-04-19 - Earliest claimed: 2018-09-07 - Assignees: Bleckmann GmbH & Co. KG - Applicants: Bleckmann GmbH & Co. KG - Inventors: Heinz Frederic Hackl; Jürgen Winkler - Web page: https://patentgrep.com/patent/US11306945B2 ## CPC - F24H 1/121: {using electric energy supply} - F24H 9/1818: Arrangement or mounting of electric heating means - D06F 39/04: Heating arrangements - F24H 1/0018: {using electric energy supply} - F24H 1/08: Packaged or self-contained boilers, i.e. water heaters with control devices and pump in a single unit - F24H 1/102: {with resistance} - F24H 9/2028: {Continuous-flow heaters} - F24H 9/40: Arrangements for preventing corrosion - A47L 15/4225: {Arrangements or adaption of recirculation or discharge pumps} - A47L 15/4285: {Water-heater arrangements (steam generating arrangements A47L15/4234)} - D06F 39/085: {Arrangements or adaptations of pumps} - F24H 2250/02: Resistances - F24H: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22) - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract The present invention relates to a heating system for heating a fluid medium, said heating system comprises a carrier unit and a heating unit, with the carrier unit having a surface comprising at least a plane portion being at least substantially normal to a longitudinal axis and an at least part-circularly shaped groove extending from said carrier unit and wound about the longitudinal axis, and the heating unit having a heating element at least partially arranged in said groove of said carrier unit. In the inventive heating system, the groove extends at least partially helically about the longitudinal axis. The present invention further relates to a heated conveyor pump for conveying and heating a fluid medium, said pump comprises a drive unit, a pump housing and the inventive heating system. The heating system is coupled to the pump housing with the groove extending into the pump housing in a manner such that the size of the cross-section of the groove decreases in the flow direction of the conveyed fluid medium. ## Claims ### Claim 1 A heating system for heating a fluid medium, said heating system comprising: a disk-like carrier unit and a heating unit; the carrier unit having a central axis, a groove extending at least partially around the central axis and a bottom; and the heating unit having a heating element at least partially arranged in said groove of said carrier unit; wherein at least a section of the groove bottom has an inclination referred to a plane of the carrier unit extending at least substantially normal to the central axis of the carrier unit and wherein the inclination has an inclination angle >0°; and wherein the groove bottom extends substantially helically around the central axis and wherein the heating unit is formed as a helix along the central axis. ### Claim 2 (depends on 1) The heating system according to claim 1, wherein the gradient of the inclination of the groove bottom is at least partially continuous. ### Claim 3 (depends on 1) The heating system according to claim 1, wherein the gradient of the inclination of the groove bottom is at least partially discontinuous. ### Claim 4 (depends on 1) The heating system according to claim 1, wherein the bottom of the groove has at least two sections the inclination angles of which are unequal. ### Claim 5 (depends on 1) The heating system according to claim 1, wherein the bottom of the groove has at least two sections the inclination angles of which are equal. ### Claim 6 (depends on 5) The heating system according to claim 5, wherein the sections follow one after the other. ### Claim 7 (depends on 5) The heating system according to claim 5, wherein the sections are separated from each other. ### Claim 8 (depends on 4) The heating system according to claim 4, wherein the sections follow one after the other. ### Claim 9 (depends on 4) The heating system according to claim 4, wherein the sections are separated from each other. ### Claim 10 (depends on 1) The heating system according to any of claim 1, wherein the heating element has at least one cranked end. ### Claim 11 (depends on 10) The heating system according to claim 10, wherein the heating element has two cranked ends wherein the degree of offsetting of the cranked ends is different. ### Claim 12 (depends on 10) The heating system according to claim 10, characterized in that wherein an inwards direction is defined as the extension direction of the groove from the carrier unit projected onto the central axis and the at least partially part-circularly shaped tubular heating element is arranged in the groove with the cranked end positioned at the largest extension of the groove in the inwards direction. ### Claim 13 (depends on 1) The heating system according to claim 1, wherein a size of the cross-section of the groove continuously decreases at least partially, wherein the at least partially part-circularly shaped tubular heating element is arranged in the groove with the cranked end positioned at least approximately at the largest cross-section of the groove. ### Claim 14 (depends on 1) The heating system according to claim 1, wherein the carrier unit is provided with a protective coating, at least at that surface facing away from the heating element. ### Claim 15 (depends on 1) The heating system according to claim 1, wherein the carrier unit comprises or consists of a heat conducting material. ### Claim 16 (depends on 1) A heated conveyor pump for conveying and heating a fluid medium, said pump comprising: a drive unit, a pump housing and a heating system, wherein the heating system is defined according to claim 1.