US2010290933A1PendingUtilityA1

Electric pump

38
Assignee: MIKUNI KOGYO KKPriority: May 15, 2009Filed: May 14, 2010Published: Nov 18, 2010
Est. expiryMay 15, 2029(~2.8 yrs left)· nominal 20-yr term from priority
Inventors:Shingo TabataMichihiro YokoyamaMinoru SuzukiYoshihiro SakaguchiHideki EndoHaruo KoteraNaohisa KoikeKenta Tanaka
F01C 21/10F04B 53/003F04C 15/0042F04C 2270/12
38
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Claims

Abstract

An electric pump includes a pump; a motor having a motor shaft, the motor shaft being connected to the pump to drive the pump; a support member which is arranged between the pump and a front end portion of the motor, the front end portion of the motor being a motor shaft side, the support member supporting the pump and the motor when the motor shaft penetrates the pump; a motor cover which covers the motor, the motor cover having a closed-end cylindrical shape, and an opened end side of the motor cover being fixed to the support member; and an elastic member which is in a state of being compressed positioned between a rear end portion of the motor and a bottom portion of the motor cover. The motor is supported by the support member as being urged thereto by the elastic member.

Claims

exact text as granted — not AI-modified
1 . An electric pump comprising:
 a pump;   a motor having a motor shaft, the motor shaft being connected to the pump to drive the pump;   a support member which is arranged between the pump and a front end portion of the motor, the front end portion of the motor being a motor shaft side, the support member supporting the pump and the motor when the motor shaft penetrates the pump;   a motor cover which covers the motor, the motor cover having a closed-end cylindrical shape, and an opened end side of the motor cover being fixed to the support member; and   an elastic member which is in a state of being compressed positioned between a rear end portion of the motor and a bottom portion of the motor cover,   wherein the motor is supported by the support member as being urged thereto by the elastic member.   
     
     
         2 . The electric pump according to  claim 1 , wherein the elastic member comprises a first elastic member provided in a state of being compressed along an axial direction of the motor shaft, and
 the motor is urged to the support member side along the axial direction of the motor shaft by the first elastic member.   
     
     
         3 . The electric pump according to  claim 1 , wherein the elastic member comprises a second elastic member provided in a state of being compressed along a radial direction having the motor shaft as an approximate center, and
 the motor is urged to the motor shaft side along the radial direction by the second elastic member.   
     
     
         4 . The electric pump according to  claim 1 , wherein the elastic member comprises:
 a first elastic member provided in a state of being compressed along an axial direction of the motor shaft, the motor being urged to the support member side along the axial direction of the motor shaft by the first elastic member; and   a second elastic member provided in a state of being compressed along a radial direction having the motor shaft as an approximate center, the motor being urged to the motor shaft side along the radial direction by the second elastic member.   
     
     
         5 . The electric pump according to  claim 1 , wherein the elastic member comprises a compressed spring. 
     
     
         6 . The electric pump according to  claim 1 , wherein the elastic member comprises a plate spring. 
     
     
         7 . The electric pump according to  claim 1 , wherein the elastic member comprises a disk spring. 
     
     
         8 . The electric pump according to  claim 1 , wherein the motor and the motor cover are not in contact with each other.

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