A flexible impeller pump designed for use in dispensing a flowable food product. The flexible impeller pump includes a cover, impeller assembly and a pump body that are assembled to create the pump without other separate components. The components can be permanently connected to each other to create a disposable pump or can be disassembled for cleaning and reuse. The impeller assembly includes an impeller shaft and a flexible impeller molded over the impeller shaft to prevent separation. The impeller assembly is received within the pump body and the cover is secured to the pump body. The cover includes a seal that is molded over the pump body to prevent separation of the seal from the cover. The impeller shaft extends through the pump body and is coupled to a drive shaft of an electric motor that is operable to drive the impeller pump.

A pump device (10) for pumping a fluid, having a hydraulic enclosure (12) that comprises an annular section, a pump ring (14) that is deformable and which defines an annular pump chamber at least in certain regions, a pump ring carrier (16) that is solidly connected to the pump ring (14), a first connector and a second connector, which first connector and which second connector are in fluid communication with the pump chamber, wherein the pump device (10) is set up in such a way that at least one measure influences a parking position of an eccentric (18) such that said parking position is preferred in the region of a clamping member (114), the measure being selected from: a) at least one recess in the hydraulic housing, which recess locally widens the chamber for the pump ring (14) in the axial direction, b) a geometry of the pump ring carrier (16), in which the pump ring carrier (16) has an enlarged diameter on its inner side facing the eccentric (18) in the angular region of the clamping member (114), and c) a geometric configuration of the pump ring (14), which, in the non-installed state of the pump ring (14), provides in one region at least a reduced strength of the pump ring (14), said region being in the clamping member region in the installed state of the pump ring (14), resulting in a reduced axial pressing action of the pump ring (14) in the clamping member region.

A pump device (10) for pumping a fluid, having a hydraulic enclosure (12) that comprises an annular section, a pump ring (14) that is deformable and which defines an annular pump chamber at least in certain regions, a pump ring carrier (16) that is solidly connected to the pump ring (14), a first connector and a second connector, which first connector and which second connector are in fluid communication with the pump chamber, wherein the pump device (10) is set up in such a way that at least one measure influences a parking position of an eccentric (18) such that said parking position is preferred in the region of a clamping member (114), the measure being selected from: a) at least one recess in the hydraulic housing, which recess locally widens the chamber for the pump ring (14) in the axial direction, b) a geometry of the pump ring carrier (16), in which the pump ring carrier (16) has an enlarged diameter on its inner side facing the eccentric (18) in the angular region of the clamping member (114), and c) a geometric configuration of the pump ring (14), which, in the non-installed state of the pump ring (14), provides in one region at least a reduced strength of the pump ring (14), said region being in the clamping member region in the installed state of the pump ring (14), resulting in a reduced axial pressing action of the pump ring (14) in the clamping member region.

Disclosed is a liquid pumping device, including a first component, a second component and a third component, wherein the second component moves relative to the first component in a fixed manner; a medium inlet and a medium outlet not in communication with each other are provided in a contact surface of the first component in liquid tightness sliding fit with the second component; a groove is provided in a contact surface of the second component in liquid tightness sliding fit, and the groove moves along a fixed path in the range of the contact surface in liquid tightness sliding fit; and the movement path of the groove respectively passes the medium inlet, the medium outlet and the third component, the third component is arranged on the side of the medium outlet in the forward movement direction of the groove, and when the groove moves forward through the third component, the part of the third component entering the groove extrudes the medium in the groove to the medium outlet. The quantification of liquid by the device of the present invention is determined by the groove, and the principle facilitates the control of the output precision of the pump.

Disclosed is a liquid pumping device, including a first component, a second component and a third component, wherein the second component moves relative to the first component in a fixed manner; a medium inlet and a medium outlet not in communication with each other are provided in a contact surface of the first component in liquid tightness sliding fit with the second component; a groove is provided in a contact surface of the second component in liquid tightness sliding fit, and the groove moves along a fixed path in the range of the contact surface in liquid tightness sliding fit; and the movement path of the groove respectively passes the medium inlet, the medium outlet and the third component, the third component is arranged on the side of the medium outlet in the forward movement direction of the groove, and when the groove moves forward through the third component, the part of the third component entering the groove extrudes the medium in the groove to the medium outlet. The quantification of liquid by the device of the present invention is determined by the groove, and the principle facilitates the control of the output precision of the pump.

A flexible impeller pump designed for use in dispensing a flowable food product is disclosed. The flexible impeller pump includes a cover, impeller assembly and a pump body that are assembled to create the pump without other separate components. The components can be permanently connected to each other to create a disposable pump or can be disassembled for cleaning and reuse. The impeller assembly includes an impeller shaft and a flexible impeller molded over the impeller shaft to prevent separation. The impeller assembly is received within the pump body and the cover is secured to the pump body. The cover includes a seal that is molded over the pump body to prevent separation of the seal from the cover. The impeller shaft extends through the pump body and is coupled to a drive shaft of an electric motor that is operable to drive the impeller pump.

A pump includes a pump housing element and a further element; one of the pump housing and the further element comprising a helical protrusion extending towards the other element, the other element comprising at least one liquid opening. The helical protrusion, pump housing and further element form a path from a gas inlet to a gas outlet. The helical protrusion has an axial cross section that is wider at its attached end than it is at its free end. The pump housing and further element are mounted rotatably with respect to each other; and the at least one liquid opening is configured such that liquid output from the at least one liquid opening forms a liquid blade, the liquid blade being operable to drive gas along the path from the gas inlet to the gas outlet on rotation of one of the elements.

A pump includes a pump housing element and a further element; one of the pump housing and the further element comprising a helical protrusion extending towards the other element, the other element comprising at least one liquid opening. The helical protrusion, pump housing and further element form a path from a gas inlet to a gas outlet. The helical protrusion has an axial cross section that is wider at its attached end than it is at its free end. The pump housing and further element are mounted rotatably with respect to each other; and the at least one liquid opening is configured such that liquid output from the at least one liquid opening forms a liquid blade, the liquid blade being operable to drive gas along the path from the gas inlet to the gas outlet on rotation of one of the elements.

An aerosolizing device for substance delivery to a user comprising: a rotational pump configured to receive a formulation from a source, where the formulation comprises a target substance that is designed to effect a physiological change in the user, and where the rotational pump is further configured to transport the formulation from the source and deliver the formulation in a vapor form with aid of a vaporization element for inhalation by the user are described.

A flexible impeller pump designed for use in dispensing a flowable food product is disclosed. The flexible impeller pump includes a cover, impeller assembly and a pump body that are assembled to create the pump without other separate components. The components can be permanently connected to each other to create a disposable pump or can be disassembled for cleaning and reuse. The impeller assembly includes an impeller shaft and a flexible impeller molded over the impeller shaft to prevent separation. The impeller assembly is received within the pump body and the cover is secured to the pump body. The cover includes a seal that is molded over the pump body to prevent separation of the seal from the cover. The impeller shaft extends through the pump body and is coupled to a drive shaft of an electric motor that is operable to drive the impeller pump.