# US 2022/0034338 A1 · Piping assembly and refrigeration system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0034338 A1 - Document ID: US20220034338A1 - Status: Published application - Kind: A1 - Application number: 17/381,798 - Filed: 2021-07-21 - Published: 2022-02-03 - Earliest claimed: 2020-07-31 - Assignees: Carrier Corporation - Applicants: Carrier Corporation - Inventors: Lei Yu; Fujin Feng; Yuchang Shao; Xu Jiang; Qunyi Ma - Web page: https://patentgrep.com/patent/US20220034338A1 ## CPC - F04D 29/706: {Humidity separation} - F15D 1/04: Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow - F25B 39/028: {having distributing means} - F25B 41/00: Fluid-circulation arrangements - F25B 41/31: Expansion valves - F25B 41/40: Fluid line arrangements - F25B 43/006: {Accumulators} - F25B 2339/0242: having tubular elements - F25B 2400/23: Separators - F25B 2500/01: Geometry problems, e.g. for reducing size - F25B 2500/12: Sound - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F15D: FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS ## Abstract A piping assembly and a refrigeration system. The piping assembly includes: an inlet portion extending along an inlet axis; an outlet portion extending along an outlet axis, wherein a predetermined angle is formed between the inlet axis and the outlet axis; a transition portion being attached between the inlet portion and the outlet portion and defining a transition axis; a cavity extending from the inlet portion to the outlet portion through the transition portion; and a first straightening portion including a plurality of deflector plates attached to an inner wall of the cavity, wherein the first straightening portion includes at least a first deflector plate and a second deflector plate connected at an angle, and the first deflector plate and the second deflector plate are configured to extend in parallel with a part of the outlet axis and a part of the transition axis. ## Claims ### Claim 1 A piping assembly characterized in that it comprises: an inlet portion extending along an inlet axis; an outlet portion extending along an outlet axis, wherein a predetermined angle is formed between the inlet axis and the outlet axis; a transition portion being attached between the inlet portion and the outlet portion and defining a transition axis; a cavity extending from the inlet portion to the outlet portion through the transition portion; and a first straightening portion comprising a plurality of deflector plates attached to an inner wall of the cavity, wherein the first straightening portion comprises at least a first deflector plate and a second deflector plate connected at an angle, the first deflector plate and the second deflector plate are configured to extend in parallel with a part of the outlet axis and a part of the transition axis. ### Claim 2 (depends on 1) The piping assembly according to claim 1, wherein the first deflector plate and the second deflector plate are arranged to be perpendicular to each other, and rear edges of the first deflector plate and the second deflector plate that are closer to the outlet portion are arranged to be perpendicular to the outlet axis and/or the transition axis. ### Claim 3 (depends on 2) The piping assembly according to claim 2, further comprising a second straightening portion being arranged upstream and/or downstream of the first straightening portion, and the second straightening portion comprises a plurality of third deflector plates attached to the inner wall of the cavity. ### Claim 4 (depends on 3) The piping assembly according to claim 3, wherein the second straightening portion and the first straightening portion are configured to be spaced apart from each other. ### Claim 5 (depends on 3) The piping assembly according to claim 3, wherein both ends of each of the third deflector plates are respectively attached to the inner wall of the cavity. ### Claim 6 (depends on 3) The piping assembly according to claim 3, wherein the third deflector plates are configured to be parallel with each other and extend in parallel with a part of the transition axis. ### Claim 7 (depends on 3) The piping assembly according to claim 3, wherein a rear edge of each of the third deflector plates that is closer to the outlet portion is arranged to be perpendicular to the transition axis and/or the outlet axis. ### Claim 8 (depends on 3) The piping assembly according to claim 3, wherein the first straightening portion is made of a porous material, and the second straightening portion is made of a porous material. ### Claim 9 (depends on 1) The piping assembly according to claim 1, wherein the predetermined angle is configured to be between 45 degrees and 135 degrees. ### Claim 10 (depends on 1) A refrigeration system characterized in that it comprises: a refrigeration circuit comprising an evaporator and a compressor; and the piping assembly according to claim 1, wherein the inlet portion is attached to an outlet end of the evaporator, and the outlet portion is attached to an inlet end of the compressor. ### Claim 11 (depends on 10) The refrigeration system according to claim 10, wherein the piping assembly is arranged such that the inlet axis is oriented substantially vertical and the outlet axis is oriented substantially horizontal.