| 摘要 |
<p>The invention relates to a pump motor 1 for a vehicle, wherein when integrally forming the housing of a motor pump, in which the pump accommodating portion P is made larger in diameter than the motor accommodating portion M, by using metal dies, ventilation holes H that communicate from the base end side of the housing 2 to the motor accommodating portion M are formed without making the motor accommodating portion M of the housing 2 larger in diameter, wherein projections are formed so as to be continuous to the base end side at the portion opposed to the pump accommodating portion P on the outer circumferential surface of the housing 2, and the ventilation holes H are formed to incline inwardly so that they reach from the base end side of the projections to the inside of the motor accommodating portion M. <IMAGE></p> |
