# US 8,769,804 B2 · Method of assembling an electric motor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,769,804 B2 - Document ID: US8769804B2 - Status: Granted - Kind: B2 - Application number: 13/397,080 - Filed: 2012-02-15 - Published: 2013-08-15 - Granted: 2014-07-08 - Earliest claimed: 2012-02-15 - Assignees: Hamilton Sundstrand Corporation - Applicants: Roy D. Rasmussen; Aaron M. Finke; Nathan D. Lewis - Inventors: Roy D. Rasmussen; Aaron M. Finke; Nathan D. Lewis - Web page: https://patentgrep.com/patent/US8769804B2 ## CPC - H02K 15/16: Centring rotors within the stators - Y10T 29/49002: Electrical device making - Y10T 29/49009: Dynamoelectric machine - 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 method of assembling an electric motor is provided. The method includes positioning a guide rod within a motor housing and along an axial direction of the motor housing, wherein the guide rod is disposed radially inward of a plurality of motor components. Also included is guiding a rotor along the guide rod and radially inward of the plurality of motor components. ## Claims ### Claim 1 A method of assembling an electric motor comprising: positioning a guide rod within a motor housing and along an axial direction of the motor housing, wherein the guide rod is disposed radially inward of a plurality of motor components; and guiding a rotor along the guide rod and radially inward of the plurality of motor components, wherein guiding the rotor comprises disposing the guide rod through a central portion of the rotor for sliding the rotor thereon. ### Claim 2 (depends on 1) The method of claim 1, further comprising securing the guide rod proximate an end cap of the motor housing. ### Claim 3 (depends on 1) The method of claim 1, wherein the plurality of motor components comprises at least one of a bearing, a stator sleeve and a resolver. ### Claim 4 (depends on 3) The method of claim 3, further comprising engaging a first end of a rotor shaft to a rotating component, wherein at least a portion of the rotating component is disposed external to the motor housing. ### Claim 5 (depends on 4) The method of claim 4, wherein the rotating component is an impeller. ### Claim 6 (depends on 4) The method of claim 4, further comprising engaging a second end of the rotor shaft to the guide rod. ### Claim 7 (depends on 6) The method of claim 6, further comprising torqueing the rotating component to the rotor shaft via a threaded connection between the rotor shaft and the rotating component. ### Claim 8 (depends on 1) The method of claim 1, further comprising positioning the guide rod relatively within at least one of a bore of the motor housing and an external fixture disposed proximate the motor housing. ### Claim 9 (depends on 6) The method of claim 6, further comprising disengaging the guide rod from the second end of the rotor shaft and removing the guide rod from the motor housing. ### Claim 10 A method of assembling an electric motor comprising: positioning a plurality of motor components proximate a guide rod, wherein the plurality of motor components are disposed within a motor housing, wherein the guide rod extends along an axial direction of the motor housing; guiding a rotor along the guide rod into the motor housing, wherein guiding the rotor comprises disposing the guide rod through a central portion of the rotor for sliding the rotor thereon; and operably coupling a rotating component to a rotor shaft. ### Claim 11 (depends on 10) The method of claim 10, wherein the guide rod is disposed radially inward of the plurality of motor components. ### Claim 12 (depends on 10) The method of claim 10, further comprising securing the guide rod within an end cap of the motor housing. ### Claim 13 (depends on 10) The method of claim 10, further comprising positioning the guide rod relatively within at least one of a bore of the motor housing and an external fixture disposed proximate the motor housing. ### Claim 14 (depends on 10) The method of claim 10, wherein the plurality of motor components comprises at least one of a bearing, a stator sleeve and a resolver. ### Claim 15 (depends on 10) The method of claim 10, wherein at least a portion of the rotating component is disposed external to the motor housing. ### Claim 16 (depends on 15) The method of claim 15, wherein the rotating component is an impeller. ### Claim 17 (depends on 15) The method of claim 15, wherein operably coupling the rotating component to the rotor shaft comprises: engaging a first end of the rotor shaft with the rotating component; engaging a second end of the rotor shaft with the guide rod; and torqueing the rotating component to the rotor shaft via a threaded connection between the rotor shaft and the rotating component. ### Claim 18 (depends on 17) The method of claim 17, wherein the second end of the rotor shaft comprises a hexagonal portion configured to engage the guide rod. ### Claim 19 (depends on 17) The method of claim 17, further comprising disengaging the guide rod from the second end of the rotor shaft and removing the guide rod from the motor housing.