Unitary electric-motor/hydraulic-pump assembly with noise reduction features

An electric-motor/hydraulic-pump assembly that comprises:

• an electric motor having a motor housing and a motor shaft accessible at one end of said housing,
• a hydraulic pump coupled to said shaft and mounted to said one end of said motor housing to form a unitary assembly in which vibration generated by operation of said pump is transmitted to said motor housing,
• fluid passage means including inlet passage means for receiving fluid and directing such fluid through said motor housing to cool said motor and thence to said pump, and outlet passage means extending from said pump,
• support feet affixed to and extending from said motor housing for mounting said motor housing to a housing support structure,
• vibration damping means operatively interposed between said motor housing and said support feet to inhibit transmission of structure-borne noise from said motor housing to the housing support structure through said support feet, and
• a sound deadening enclosure surrounding and spaced from said pump and said motor housing to inhibit radiation of airborne noise from said pump and said motor housing, said sound deadening enclosure having apertures through which said support feet extend, said vibration damping means being disposed within said sound deadening enclosure.