Patent ID: 9702377
Date: 2017-07-11
CPC Classifications: B60N,F04D

Claim:
1. A motor and pump assembly for mounting in a vehicle seat including a motor driven pump unit, a housing and a suspension arrangement for holding the motor driven pump unit within the housing, said motor driven pump unit having opposing axial ends and a longitudinal axis extending through the axial ends, wherein the suspension arrangement comprises: at least one helical compression spring for holding said motor driven pump unit and for balancing a weight of the motor driven pump unit, one end of the at least one helical compression spring being connected to the housing and an other end of the at least one helical compression spring being connected to the motor driven pump unit at a location along the longitudinal axis that corresponds to an axial location of a center of gravity of the motor driven pump unit, and at least one spiral spring having an inner end connected to one of the axial ends of the motor driven pump unit and an outer end portion connected to the housing with the opposing axial end of the motor driven pump unit remaining free from connection to the housing, wherein the at least one spiral spring is located such that the at least one spiral spring is centered around the longitudinal axis of the motor driven pump unit.