# US 9,752,809 B2 · Linear oscillation system having a suspension system and a method for assembling the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,809 B2 - Document ID: US9752809B2 - Status: Granted - Kind: B2 - Application number: 14/596,754 - Filed: 2015-01-14 - Published: 2015-08-13 - Granted: 2017-09-05 - Earliest claimed: 2014-02-11 - Assignees: Haier US Appliance Solutions, Inc. - Applicants: General Electric Company - Inventors: Savio Sebastian Kathayanatt; Subhrajit Dey; Bhaskar Tamma; Aditya Bhakta; Sandeep Dhar; Parag Mantri - Web page: https://patentgrep.com/patent/US9752809B2 ## CPC - F25B 31/023: {with compressor of reciprocating-piston type} - F04B 35/045: {using solenoids} - F04B 39/0005: {adaptations of pistons} - F04B 53/14: Pistons, piston-rods or piston-rod connections - H02K 33/16: with polarised armatures moving in alternate directions by reversal or energisation of a single coil system - F25B 2400/073: Linear compressors - Y10T 29/49236: Fluid pump or compressor making - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - F04B: POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS (machines for liquids, or pumps, of rotary-piston or oscillating-piston type F04C; non-positive-displacement pumps F04D; pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped F04F) - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A linear oscillation system comprising a housing, a stationary assembly, a moveable assembly and a suspension system is disclosed. The suspension system is mechanically coupled between the moveable assembly and the housing. The suspension system comprises a plurality of planar elastic members and plurality of longitudinal elastic members disposed between the plurality of planar elastic members. A first end of each of the plurality of planar elastic members is mechanically coupled to at least one of the plurality of planar elastic members. A second end of each of the plurality of longitudinal elastic members is mechanically coupled to the housing. ## Claims ### Claim 1 A linear oscillation system comprising: a housing; a stationary assembly disposed in the housing; a moveable assembly disposed in the housing, wherein the moveable assembly is configured to undergo a reciprocating motion with respect to the stationary assembly, under the effect of an actuation mechanism; and a suspension system mechanically coupled between the moveable assembly and the housing, wherein the suspension system comprises a plurality of planar elastic members and a plurality of longitudinal elastic members disposed between the plurality of planar elastic members, and wherein a first end of each of the plurality of longitudinal elastic members is mechanically coupled to at least one of the plurality of planar elastic members, and a second end of each of the plurality of longitudinal elastic members is mechanically coupled to the housing, wherein the plurality of planar elastic members comprises a first planar elastic member and a second elastic member, and wherein the plurality of longitudinal elastic member comprises a first longitudinal spring and a second longitudinal spring, the first longitudinal spring having a variable diameter increasing along a corresponding axis from the first planar elastic member to the second longitudinal spring, and the second longitudinal spring having a variable diameter increasing along a corresponding axis from the second planar elastic member to the first longitudinal spring. ### Claim 2 (depends on 1) The linear oscillation system as defined in claim 1, wherein the plurality of longitudinal elastic members comprises a first longitudinal elastic member and a second longitudinal elastic member, and wherein the first longitudinal elastic member is configured to elongate and the second longitudinal elastic member is configured to compress when the suspension system is displaced in a first direction, and wherein the first longitudinal elastic member is configured to compress and the second longitudinal elastic member is configured to elongate when the suspension system is displaced in a second direction. ### Claim 3 (depends on 1) The linear oscillation system as defined in claim 1, wherein at least one of the plurality of planar elastic members comprises a circular diaphragm spring. ### Claim 4 (depends on 1) The linear oscillation system as defined in claim 1, wherein the actuation mechanism comprises at least one electrical coil and at least one magnet, and wherein the actuation mechanism is configured such that an electromagnetic interaction between the electrical coil and the magnet produces a linear motion. ### Claim 5 (depends on 1) The linear oscillation system as defined in claim 1, wherein the stationary assembly comprises a stator and a cylinder disposed within the stator, and wherein the stator is defined by a hollow annular chamber and a plurality of electrical coils disposed on at least one surface of the hollow annular chamber. ### Claim 6 (depends on 5) The linear oscillation system as defined in claim 5, wherein the moveable assembly comprises a piston, a cylindrical magnet holding member, and at least one magnet disposed on at least one surface of the cylindrical magnet holding member, and wherein the piston is configured to move in the cylinder and the cylindrical magnet holding member is configured to move in the hollow annular chamber. ### Claim 7 (depends on 1) The linear oscillation system as defined in claim 1, wherein the reciprocating motion of the moveable assembly is configured to bring about a compression of a refrigerant. ### Claim 8 (depends on 1) A refrigerator comprising the linear oscillation system as defined in claim 1. ### Claim 9 A linear oscillation system comprising: a housing; a stationary assembly disposed in the housing; a moveable assembly disposed in the housing, wherein the moveable assembly is configured to undergo a reciprocating motion with respect to the stationary assembly, under the effect of an actuation mechanism; and a suspension system mechanically coupled between the moveable assembly and the housing, wherein the suspension system comprises a plurality of planar elastic members and a plurality of longitudinal elastic members disposed between the plurality of planar elastic members, and wherein a first end of each of the plurality of longitudinal elastic members is mechanically coupled to at least one of the plurality of planar elastic members, and a second end of each of the plurality of longitudinal elastic members is mechanically coupled to the housing, wherein the plurality of planar elastic members comprises a first planar elastic member and a second elastic member, wherein the plurality of longitudinal elastic member comprises a first longitudinal spring and a second longitudinal spring, the first longitudinal spring having a variable diameter increasing along a corresponding axis from the first planar elastic member to the second longitudinal spring, and the second longitudinal spring having a variable diameter increasing along a corresponding axis from the second planar elastic member to the first longitudinal spring, wherein each of the plurality of planar elastic members comprises a circular diaphragm spring, and wherein the reciprocating motion of the moveable assembly is configured to bring about a compression of a refrigerant. ### Claim 10 (depends on 9) The linear oscillation system as defined in claim 9, wherein the plurality of longitudinal elastic members comprises a first longitudinal elastic member and a second longitudinal elastic member, and wherein the first longitudinal elastic member is configured to elongate and the second longitudinal elastic member is configured to compress when the suspension system is displaced in a first direction, and wherein the first longitudinal elastic member is configured to compress and the second longitudinal elastic member is configured to elongate when the suspension system is displaced in a second direction. ### Claim 11 (depends on 9) The linear oscillation system as defined in claim 9, wherein the actuation mechanism comprises at least one electrical coil and at least one magnet, and wherein the actuation mechanism is configured such that an electromagnetic interaction between the electrical coil and the magnet produces a linear motion. ### Claim 12 (depends on 9) The linear oscillation system as defined in claim 9, wherein the stationary assembly comprises a stator and a cylinder disposed within the stator, and wherein the stator is defined by a hollow annular chamber and a plurality of electrical coils disposed on at least one surface of the hollow annular chamber. ### Claim 13 (depends on 12) The linear oscillation system as defined in claim 12, wherein the moveable assembly comprises a piston, a cylindrical magnet holding member, and at least one magnet disposed on at least one surface of the cylindrical magnet holding member, and wherein the piston is configured to move in the cylinder and the cylindrical magnet holding member is configured to move in the hollow annular chamber. ### Claim 14 (depends on 9) A refrigerator comprising the linear oscillation system as defined in claim 9.