Oil pump device

Abstract

An oil pump device includes a motor, a pump, a pump cover, and a solenoid. The pump cover includes a discharge port, an intake opening through which oil is suctioned, a first discharge opening and a second discharge opening through which oil is discharged, a first oil passage that is a flow path between the first discharge opening and the discharge port, and a second oil passage that is a flow path between the second discharge opening and the discharge port. A solenoid valve of a solenoid is located on the second oil passage.

1 - 13 . (canceled) 
     
     
         14 : An oil pump device, comprising:
 a motor including:
 a shaft that is disposed along a central axis; 
 a rotor that rotates around the shaft; 
 a stator that is disposed to face the rotor; and 
 a housing that accommodates the rotor and the stator; and 
   a pump including:
 a pump rotor that rotates along with the shaft and sucks and discharges oil; and 
 a pump housing that includes an accommodation portion that accommodates the pump rotor; wherein 
   the pump housing includes:
 an intake opening through which the oil is suctioned; 
 a discharge opening through which the oil is discharged; and 
 a solenoid valve between the discharge opening and the accommodation portion. 
   
     
     
         15 : The oil pump device according to  claim 14 , wherein the solenoid valve opens and closes a flow path between the discharge opening and the accommodation portion. 
     
     
         16 : The oil pump device according to  claim 14 , wherein
 the discharge opening includes a first discharge opening and a second discharge opening; and   the solenoid valve is between either of the first discharge opening or the second discharge opening and the accommodation portion.   
     
     
         17 : The oil pump device according to  claim 16 , wherein the solenoid valve is between the accommodation portion and the second discharge opening. 
     
     
         18 : The oil pump device according to  claim 14 , wherein the pump housing includes:
 a pump body that accommodates the pump rotor and includes a recess including a side wall surface and a bottom positioned on the other side of the motor in an axial direction and an opening on one side of the motor in the axial direction; and   a pump cover that closes the opening and includes the discharge opening and the intake opening.   
     
     
         19 : The oil pump device according to  claim 18 , wherein
 the pump cover is on one side of the pump in the axial direction; and   an oil pump main body and the solenoid valve are fixed to the pump cover.   
     
     
         20 : The oil pump device according to  claim 18 , wherein
 the solenoid valve includes a second intake opening through which the oil is suctioned and a third discharge opening through which the oil is discharged to an oil storage side;   the pump cover includes a first oil passage that is the flow path between the first discharge opening and the accommodation portion and a second oil passage that is the flow path between the second discharge opening and the accommodation portion; and   a portion of the second oil passage is connected to the second intake opening of the solenoid valve and the second discharge opening is connected to the third discharge opening of the solenoid valve.   
     
     
         21 : The oil pump device according to  claim 18 , wherein
 the solenoid valve includes a second intake opening through which the oil is suctioned and a third discharge opening through which the oil is discharged to the oil storage side;   the pump cover includes a first oil passage that is the flow path between the first discharge opening and the accommodation portion and a second oil passage that is the flow path that branches from the first oil passage and is connected to the second discharge opening; and   a portion of the second oil passage is connected to the second intake opening of the solenoid valve and the second discharge opening of the pump cover is connected to the third discharge opening of the solenoid valve.   
     
     
         22 : The oil pump device according to  claim 20 , wherein the pump cover includes an extension that extends outward in a radial direction from an outer circumference of the motor and includes the second oil passage and the second discharge opening in the extension. 
     
     
         23 : The oil pump device according to  claim 20 , wherein the pump cover includes an extension that extends outward in a radial direction from an outer circumference of the pump body and includes the second oil passage and the second discharge opening in the extension. 
     
     
         24 : The oil pump device according to  claim 14 , wherein the solenoid valve is disposed such that a length direction of the solenoid valve is parallel or substantially parallel to the axial direction. 
     
     
         25 : The oil pump device according to  claim 16 , wherein a supply destination of the oil from the first discharge opening is a clutch. 
     
     
         26 : The oil pump device according to  claim 20 , wherein the second oil passage extends in a direction perpendicular or substantially perpendicular to the axial direction and penetrates the pump cover to an outer circumferential portion, and a seal is located at an end of the second oil passage connected to the outer circumferential portion of the pump cover. 
     
     
         27 : The oil pump device according to  claim 21 , wherein the pump cover includes an extension that extends outward in a radial direction from an outer circumference of the motor and includes the second oil passage and the second discharge opening in the extension. 
     
     
         28 : The oil pump device according to  claim 21 , wherein the pump cover includes an extension that extends outward in a radial direction from an outer circumference of the pump body and includes the second oil passage and the second discharge opening in the extension. 
     
     
         29 : The oil pump device according to  claim 21 , wherein the second oil passage extends in a direction perpendicular or substantially perpendicular to the axial direction and penetrates the pump cover to an outer circumferential portion, and a sealing member is at an end of the second oil passage connected to the outer circumferential port of the pump cover.