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In a high-pressure cleaning apparatus comprising an electric motor arranged in a housing, a high-pressure pump arranged in a housing with at least one piston entering a pump chamber in a sealed manner, and a swash plate carried by a motor shaft protruding from the housing of the electric motor, with

In a high-pressure cleaning apparatus comprising an electric motor arranged in a housing, a high-pressure pump arranged in a housing with at least one piston entering a pump chamber in a sealed manner, and a swash plate carried by a motor shaft protruding from the housing of the electric motor, with the piston or pistons of the high-pressure pump resting in a resilient manner against the swash plate, in order to achieve electrical insulation in the region of the swash plate drive, it is proposed that the transition from the motor shaft via the swash plate to the piston or pistons be electrically interrupted by an electrically insulating material being interposed therebetween.

대표청구항 ▼

[ What is claimed is:] [1.] A high-pressure cleaning apparatus, comprising:an electric motor with a stator arranged in a motor housing for driving a motor shaft;said motor housing comprising a first portion which extends circumferentially about said stator;a high-pressure pump which is adapted to be

[ What is claimed is:] [1.] A high-pressure cleaning apparatus, comprising:an electric motor with a stator arranged in a motor housing for driving a motor shaft;said motor housing comprising a first portion which extends circumferentially about said stator;a high-pressure pump which is adapted to be driven by said motor shaft and which has at least one piston and pump chamber arranged in a pump housing;said pump housing comprising a second portion which extends circumferentially about said at least one piston and pump chamber;a metallic hood component which forms a common end portion of said motor housing and said pump housing;said hood component receiving a rotary bearing means for supporting said motor shaft;said hood component extending substantially from said rotary bearing means toward said first portion of said motor housing for closing an end of said motor housing, and toward said second portion of said pump housing for closing an end of said pump housing;an electrically insulating material interposed between said motor shaft and said at least one piston and pump chamber; andan intermediate layer of electrically insulating material that extends, at least in part, along said hood component on a side of said hood component that faces said stator; wherein:said electrically insulating material and said intermediate layer of electrically insulating material serve to electrically separate said high pressure pump and said electric motor.