# US 2014/0360175 A1 · Nozzle Arrangement and Motor Vehicle Drive Train > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360175 A1 - Document ID: US20140360175A1 - Status: Published application - Kind: A1 - Application number: 14/296,639 - Filed: 2014-06-05 - Published: 2014-12-11 - Earliest claimed: 2013-06-07 - Assignees: GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG - Applicants: GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG - Inventors: Alexander Kiehlneker; Elisabet Wagner; Christian Anzt - Web page: https://patentgrep.com/patent/US20140360175A1 ## CPC - F15B 13/02: Fluid distribution or supply devices characterised by their adaptation to the control of servomotors - F16H 39/04: with liquid motor and pump combined in one unit - B05B 1/046: {Outlets formed, e.g. cut, in the circumference of tubular or spherical elements} - F15B 21/041: Removal or measurement of solid or liquid contamination, e.g. filtering - F15B 2211/40507: with constant throttles or orifices - F15B 2211/615: Filtering means - F15B: SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR - F16H: GEARING - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract Nozzle arrangement for fluid applications, in particular for a hydraulic circuit of a motor vehicle drive train. A nozzle body has a first longitudinal end and a second longitudinal end. The nozzle body has a first longitudinal section having a cylindrical outer circumference, which has a first outside diameter. The nozzle body has a blind hole starting from the first longitudinal end. In the region of the second longitudinal end, the nozzle body has a second longitudinal section having a second outside diameter, which is smaller than the first outside diameter. A third longitudinal section is formed between the first longitudinal section and the second longitudinal section. A substantially radially aligned nozzle bore connects the outer circumference of the third longitudinal section to the blind hole. The outer circumference of the first longitudinal section is designed as a press-fitting surface, allowing the nozzle body to be pressed into a bore and allowing the second longitudinal section to form an annular gap with an inner circumference of the bore. ## Claims ### Claim 1 Motor vehicle drive train having a housing, in which a fluid is received, and having a hydraulic circuit, which has a low-pressure section and a high-pressure section, which are connected to one another by a housing section, and having a nozzle arrangement which is inserted into a bore in the housing section, the nozzle arrangement comprising a nozzle body, which has a first longitudinal end and a second longitudinal end, wherein the nozzle body has a first longitudinal section having a cylindrical outer circumference, which has a first outside diameter, wherein the nozzle body has a blind hole starting from the first longitudinal end, wherein, in the region of the second longitudinal end, the nozzle body has a second longitudinal section having a second outside diameter, which is smaller than the first outside diameter, wherein a third longitudinal section is formed between the first longitudinal section and the second longitudinal section, and wherein a substantially radially aligned nozzle bore connects the outer circumference of the third longitudinal section to the blind hole, and wherein the outer circumference of the first longitudinal section is designed as a press-fitting surface, allowing the nozzle body to be pressed into the bore and allowing the second longitudinal section to form an annular gap with an inner circumference of the bore. ### Claim 2 (depends on 1) Motor vehicle drive train according to claim 1, wherein the first longitudinal section is formed adjacent to the first longitudinal end. ### Claim 3 (depends on 1) Motor vehicle drive train according to claim 1, wherein the third longitudinal section has a third outside diameter, which is smaller than the second outside diameter. ### Claim 4 (depends on 1) Motor vehicle drive train according to claim 1, wherein the nozzle body is of rotationally symmetrical design with respect to a longitudinal axis. ### Claim 5 (depends on 1) Motor vehicle drive train according to claim 1, wherein the nozzle body has an insertion chamfer in the region of a transition between the third longitudinal section and the first longitudinal section. ### Claim 6 (depends on 1) Motor vehicle drive train according to one of claim 1, wherein the nozzle body has an internally threaded section in the region of the blind hole. ### Claim 7 (depends on 1) Motor vehicle drive train according to claim 1, wherein the nozzle body is produced from steel. ### Claim 8 (depends on 1) Motor vehicle drive train according to claim 1, wherein the nozzle body is produced from aluminum. ### Claim 9 (depends on 8) Motor vehicle drive train according to claim 8, wherein the nozzle body has a coating of greater hardness than that of aluminum, at least in the region of the press-fitting surface. ### Claim 10 (depends on 1) Motor vehicle drive train according to claim 1, wherein the first longitudinal section is designed as an unmachined cylindrical section. ### Claim 11 (depends on 1) Motor vehicle drive train according to claim 1, wherein the high-pressure section is connected to the low-pressure section via an orifice, the orifice being formed by the nozzle arrangement, and wherein a hydraulic resistance of the orifice is defined by a diameter of the bore. ### Claim 12 Nozzle arrangement for fluid applications, comprising a nozzle body, which has a first longitudinal end and a second longitudinal end, wherein the nozzle body has a first longitudinal section having a cylindrical outer circumference, which has a first outside diameter, wherein the nozzle body has a blind hole starting from the first longitudinal end, wherein, in the region of the second longitudinal end, the nozzle body has a second longitudinal section having a second outside diameter, which is smaller than the first outside diameter, wherein a third longitudinal section is formed between the first longitudinal section and the second longitudinal section, and wherein a substantially radially aligned nozzle bore connects the outer circumference of the third longitudinal section to the blind hole, and wherein the outer circumference of the first longitudinal section is designed as a press-fitting surface, allowing the nozzle body to be pressed into a bore and allowing the second longitudinal section to form an annular gap with an inner circumference of the bore. ### Claim 13 (depends on 12) Nozzle arrangement according to claim 12, wherein the first longitudinal section is formed adjacent to the first longitudinal end. ### Claim 14 (depends on 12) Nozzle arrangement according to claim 12, wherein the third longitudinal section has a third outside diameter, which is smaller than the second outside diameter. ### Claim 15 (depends on 12) Nozzle arrangement according to claim 12, wherein the nozzle body is of rotationally symmetrical design with respect to a longitudinal axis. ### Claim 16 (depends on 12) Nozzle arrangement according to claim 12, wherein the nozzle body has an insertion chamfer in the region of a transition between the third longitudinal section and the first longitudinal section. ### Claim 17 (depends on 12) Nozzle arrangement according to claim 12, wherein the nozzle body has an internally threaded section in the region of the blind hole. ### Claim 18 (depends on 12) Nozzle arrangement according to claim 12, wherein the nozzle body is produced from steel. ### Claim 19 (depends on 12) Nozzle arrangement according to claim 12, wherein the nozzle body is produced from aluminum. ### Claim 20 (depends on 19) Nozzle arrangement according to claim 19, wherein the nozzle body has a coating of greater hardness than that of aluminum, at least in the region of the press-fitting surface. ### Claim 21 (depends on 12) Nozzle arrangement according to claim 12, wherein the first longitudinal section is designed as an unmachined cylindrical section. ### Claim 22 Nozzle arrangement for fluid applications, comprising a nozzle body, which has a first longitudinal end and a second longitudinal end, wherein the nozzle body has a first longitudinal section having a cylindrical outer circumference, which has a first outside diameter, wherein the nozzle body has a blind hole starting from the first longitudinal end, wherein, in the region of the second longitudinal end, the nozzle body has a second longitudinal section having a second outside diameter, which is smaller than the first outside diameter, wherein a third longitudinal section is formed between the first longitudinal section and the second longitudinal section, and wherein a substantially radially aligned nozzle bore connects the outer circumference of the third longitudinal section to the blind hole, and wherein the first longitudinal section has an external thread.