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US 7,841,216 B2Granted
Dry cleaning machine and driving unit compartment
AssigneeAktiebolaget Electrolux
InventorGoran Uhlin
Life of this patent
Estimating the term…
Abstract
A cleaning machine, such as a laundry cleaning machine, includes a treatment compartment housing that defines a treatment compartment and a driving unit compartment housing that defines a driving unit compartment. The driving unit compartment housing is connected to the treatment compartment housing such that the driving unit compartment housing can be removable from the treatment compartment housing to access the driving unit compartment from outside the treatment compartment.
Claims20
A dry cleaning machine comprising:
- a fluid tight pressure vessel defined by a treatment compartment housing that defines a treatment compartment;
- and
- a driving unit compartment housing that defines a driving unit compartment configured to withstand high pressure associated with the use of densified liquid state treatment gas,
- wherein the driving unit compartment housing is connected to the treatment compartment housing, and the driving unit compartment and the treatment compartment are in fluid communication and have essentially the same pressure,
- wherein the treatment compartment housing includes a transmission opening through which a transmission arrangement extends such that a driving unit projects from the transmission opening and a wall of the treatment compartment housing,
- wherein the transmission opening is positioned above a maximal liquid level of the dry cleaning machine and configured such that gas flow is permitted through the transmission opening but liquid flow is not permitted through the transmission opening, and
- wherein the driving unit compartment housing can be removable from the treatment compartment housing to access the driving unit compartment from outside the treatment compartment without having access to the treatment compartment.
4 more elements
A dry cleaning machine comprising:
- a treatment compartment having a drum rotatably disposed therein;
- a driving unit compartment configured to withstand high pressure associated with the use of densified liquid state treatment gas having a motor disposed therein, the driving unit compartment being coupled to a wall of the treatment compartment;
- and
- a seal provided between the treatment compartment and the driving unit compartment, wherein the motor is coupled to the drum via a rotatable shaft which extends between the treatment compartment and the driving unit compartment, the seal being positioned and configured such that gas flow is permitted and liquid flow is obstructed between the treatment compartment and the driving compartment,
- wherein the driving unit compartment and the treatment compartment are in fluid communication and have essentially the same pressure, and
- wherein the driving unit compartment can be removed from the treatment compartment such that the motor can be accessed without having access to the treatment compartment.
3 more elements
A cleaning machine including:
- a treatment compartment housing having a drum rotatably disposed within a treatment compartment;
- and
- a driving unit compartment housing having a driving unit disposed therein, the driving unit compartment housing being secured to a wall of the treatment compartment housing,
- wherein the treatment compartment housing includes a transmission opening through which the transmission arrangement extends,
- wherein the transmission opening is substantially closed by a sealing ring, bearing arrangement, and drum shaft such that when the driving unit compartment housing is removed from the treatment compartment housing, the driving unit can be accessed without having access to the treatment compartment,
- wherein the pressure is balanced between the treatment compartment and the driving unit compartment, and
- wherein the transmission opening is positioned at a level above a maximal liquid level of the drying cleaning machine and configured so as to permit gas flow and obstruct liquid flow between the treatment compartment and the driving unit compartment.
4 more elements
Dependencies are inferred from the claim text.