There is described a rocket propellant tank comprising: an inner tank (10); and an outer tank (12) concentrically arranged with the inner tank nested within the outer tank; wherein the inner tank contains liquid oxygen and the outer tank contains liquid hydrogen.
A rocket engine (2) comprising: a combustion chamber (4); a first pump comprising a rotor assembly for pumping a first propellant to the combustion chamber (4); wherein at least a portion of the rotor assembly is annular and is arranged so as to encircle and rotate relative to the combustion chamber(4).
There is described an extraction apparatus for an open refrigerated display case and an associated method. The extraction apparatus comprises: an extraction unit (36) configured to be received on an upper wall (8) of the open refrigerated display case and to form an extraction plenum (38) between a back wall (6) of the open refrigerated display case and an adjacent wall (34); wherein the extraction unit comprises a fan (22, 40) having an inlet (42) fluidically coupled to the extraction plenum and an outlet (44); wherein the fan is configured to generate negative pressure in the extraction plenum so as to draw cold air from in front of the open refrigerated display case into the extraction plenum through a base portion of the open refrigerated display case and to emit a jet of air from the outlet of the fan.
A refrigerated display case comprising: a refrigerated display area; a door configured to close an opening to the refrigerated display area; an air outlet spaced apart from an air inlet; a duct fluidically coupling the air inlet to the air outlet and configured to direct air flow out of the air outlet across the display area and toward the air inlet forming an air curtain across the display area; and an airflow inhibiting apparatus comprising: a conduit having an inlet and a plurality of outlet apertures arranged around a perimeter of the opening; a fan configured to draw air into the conduit via the inlet and to discharge a jet of air from each of the plurality of outlet apertures, the plurality of outlet apertures angled to repel ambient air away from the display area when the door is opened preventing airflow into the display area.
A flow control device for controlling an air curtain formed across a display area of a refrigerated display case, the flow control device comprising: a stabilizing beam comprising an elongate outer cover and a carrier; wherein the outer cover forms a continuous boundary which defines a cavity extending along the length of the outer cover; wherein the carrier is slidably received within the cavity along the length of the outer cover; wherein the carrier is provided with a light source and wherein at least a portion of the outer cover is transparent or translucent such that light emitted by the light source is emitted from the outer cover to provide illumination.
Building management systems and methods are described herein which augment predicted weather data with an external model of a built environment to calculate wind infiltration into a specific building or wind conditions at a building site. The wind infiltration can be used to predict the performance characteristic of at least one energy consuming component installed in the building, whereas the wind conditions can be used to determine whether the calculated wind conditions exceed a safety threshold.
F24F 11/48 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
There is provided a refrigerated display case (102) comprising: a refrigerated display area (15); a door (9) configured to selectively close an opening to the refrigerated display area (15); an air outlet (20) and an air inlet (18) opening into the display area (15) and spaced from one another; a duct (16) fluidically coupling the air inlet (18) to the air (outlet 20), the duct (16) being configured to direct air flow out of the air outlet (20) across the display area (15) and toward the air inlet (18) to form an air curtain (26) across the display area (15); and an airflow inhibiting apparatus (130) comprising: a conduit having an (inlet 142) and a plurality of outlet apertures (144, 146), the outlet apertures (144, 146) arranged around a perimeter of an upper portion of the opening; a fan (150) fluidically connected to the conduit and configured to draw air into the conduit via the inlet (142) and to discharge a jet of air from each of the plurality of outlet apertures (144, 146); wherein the outlet apertures (144, 146) are each arranged such that the jet of air is angled outwards away from the display area (15) to repel ambient air away from the display area when the door is opened so as to prevent airflow into the display area (15).
A flow control device for controlling an air curtain formed across a display area of a refrigerated display case, the flow control device comprising: a stabilising beam comprising an elongate outer cover (52) and a carrier (54); wherein the outer cover (52) forms a continuous boundary which defines a cavity (56) extending along the length of the outer cover (52); wherein the carrier (54) is slidably received within the cavity (56) along the length of the outer cover (52); wherein the carrier (54) is provided with a light source (68) and wherein at least a portion of the outer cover (52) is transparent or translucent such that light emitted by the light source is emitted from the outer cover (52) to provide illumination.
Building management systems and methods are described herein which augment predicted weather data with an external model of a built environment to calculate wind infiltration into a specific building or wind conditions at a building site. The wind infiltration can be used to predict the performance characteristic of at least one energy consuming component installed in the building, whereas the wind conditions can be used to determine whether the calculated wind conditions exceed a safety threshold.
There is described a refrigerated display case comprising: a refrigerated display area; an air outlet and an air inlet opening into the display area and spaced from one another; a duct fluidically coupling the air inlet to the air outlet, the duct being configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the display area; wherein the display area comprises at least one shelf, wherein a plurality of hook elements extend from a front surface of the at least one shelf, each hook element comprising a neck portion which is affixed to the front of the shelf and a head portion which is spaced from the front of the shelf by the neck portion; wherein the at least one shelf further comprises a flow control device which projects in front of the shelf and is configured to receive and guide the air curtain as it passes across the display area; wherein the flow control device is detachably connected to the shelf by a plurality of brackets each having a receiving slot which is configured to receive one of the hook elements. Also described is a flow control device assembly and a method of affixing a flow control device to a shelf of a refrigerated display case.
There is described a riser plate for a shelf of a refrigerated display case and kits of parts which allow an angle between an outer guiding surface of a riser plate and an inner retaining surface to be adjusted.
There is provided a refrigerated display case comprising: a refrigerated display area; an air outlet and an air inlet opening into the display area and spaced from one another; a duct fluidically coupling the air inlet to the air outlet, the duct being configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the front of the display area; a flow control device extending transversely across the display area and located at least partially within the air curtain; and a discharge grille located at the air outlet, the discharge grille comprising a cellular structure which defines a plurality of passageways each having an inlet opening and an outlet opening, wherein the inlet openings and the outlet openings of the passageways are aligned and define an inlet plane and an outlet plane; wherein the passageways are arranged such that their longitudinal axes form an oblique angle with the inlet and outlet planes. Also described is an air curtain discharge grille for a refrigerated display case and a method of modifying a refrigerated display case
A refrigerated display case (2) comprising: a refrigerated display area (15); at least one door (9) configured to selectively close the refrigerated display area; an air outlet (20) and an air inlet (18) opening into the display area and spaced from one another; and a duct (16) fluidically coupling the air inlet to the air outlet, the duct being configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the display area; wherein the display area comprises at least one shelf (17), the at least one shelf being provided with a flow control device (102) which is configured to control the air curtain during opening and closing of the at least one door.
There is disclosed a flow stabiliser assembly (100) for stabilising an air curtain (106) flowing across an open front of a refrigerated display case. The flow stabiliser assembly (100) comprises: a shelf mount (102) configured to be mounted to a shelf (30); a flow stabiliser (104) configured to receive and stabilise a planar air curtain (106); and an extension mechanism (110) between the shelf mount (102) and the flow stabiliser (104) which is configured to support the flow stabiliser (104) so that it extends along a width of the shelf at a front end of the shelf. The extension mechanism (110) is configured to guide the flow stabiliser (104) to move in translation and rotation relative the shelf mount (102) between a retracted configuration and an extended configuration to counteract arcuate movement of the shelf mount (102). There is also disclosed an open refrigerated display case (2) having a flow stabiliser assembly (100).
A47B 57/04 - Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the inclination of the shelves
There is described a method of configuring an open refrigerated display case, comprising: forming or simulating a preliminary air curtain for the open refrigerated display case in which airflow is directed out of an air outlet across a display volume toward an air inlet; identifying a notional flow velocity profile for the preliminary air curtain, wherein the notional flow velocity profile is measured through a depth of the preliminary air curtain in a horizontal direction; locating a region of the notional flow velocity profile in the horizontal direction in which the notional flow velocity is at least 87% of a notional peak flow velocity; arranging a flow stabilising device comprising a stabilising beam extending transversely across the display volume at a horizontal position such that a leading edge of the stabilising beam is positioned in the region in which the notional flow velocity is at least 87% of the notional peak flow velocity; and forming an air curtain across the display volume with the flow stabilising device in place.
A47F 3/04 - Showcases or show cabinets air-conditioned, refrigerated
F25D 17/06 - Arrangements for circulating cooling fluidsArrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection by forced circulation
An unmanned aerial vehicle (2) comprising: a fixed wing (6); a pair of nacelles (10) connected to the wing (6) and spaced laterally either side of a centreline of the wing (6), wherein each nacelle (10) comprises a stationary portion (14) which is fixed to the wing (6) and a movable portion (16) which is rotatable relative to the stationary portion (14); and a rotor (12) connected to the movable portion (14) of each nacelle (10); wherein the movable portion (14) of each nacelle (10) has a first position in which the axis of rotation of the rotor (12) is substantially parallel to a longitudinal axis of the nacelle (10) and a second position in which the axis of rotation of the rotor (12) is substantially perpendicular to the longitudinal axis of the nacelle (10); wherein the movable portion (16) comprises a strut (22) which in the first position lies against the stationary portion (14) and in the second position extends downwards away from the stationary portion (14) to support the unmanned aerial vehicle (2) during take-off and/or landing.
An adjustable shelf 28 comprising: a stationary frame 30 comprising a pair of brackets 34a, 34b which attach the shelf to an interior wall of the display area and a flow controlling device 52 provided at a front end of the stationary frame 30, wherein the flow controlling device 52 extends across the width of the shelf 28; and a movable shelf plate 46 coupled to the stationary frame 30 with the flow controlling device 52 disposed forward of the movable shelf plate 46, wherein the movable shelf plate 46 is movable relative to the stationary frame 30 through a plurality of positions each defining a different orientation of the movable shelf plate 46 relative to the stationary frame 30. An open refrigerated display case comprising the adjustable shelf is also described.
A47B 57/04 - Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the inclination of the shelves
An aerodynamic device (4) for a front surface of a trailer (2), the device (4) comprising: a duct (16a, 16b) having an inlet (12) and an outlet (18a, 18b); wherein the inlet (12) is configured to be vertically oriented so as to receive air deflected down the front surface of the trailer (2) and the duct (16a, 16b) is curved along its length to divert the air from vertical towards horizontal.
An unmanned aerial vehicle (2) comprising: a fuselage (4); and a wing (6) comprising a central wing section (12) pivotably mounted to the fuselage (4) and a pair of outer wing sections (14a, 14b) pivotably mounted to the central wing section (12); wherein the wing (6) has a folded configuration in which the central wing section (12) and the outer wing sections (14a, 14b) are stacked on top of one another and are aligned with a longitudinal axis of the fuselage (4); and a deployed configuration in which the central wing section (12) is substantially perpendicular to the fuselage (4) and the outer wing sections (14a, 14b) extend from the central wing section (12) away from the fuselage (4).
The present invention relates to an unmanned aerial vehicle (UAV) and a folding mechanism of aerofoil components therefor. There are disadvantages of existing UAVs having large wingspans or sizeable rotors in comparison to their fuselage length. The present invention overcomes disadvantages associated with existing UAV designs by providing a UAV comprising a fuselage; and a wing comprising a single central wing section pivotably mounted to the fuselage and a pair of outer wing sections pivotably mounted to, and extending from, the central wing section away from the fuselage. The wing has a folded configuration in which the central wing and outer wing sections are stacked on top of one another and are aligned with a longitudinal axis of the fuselage and a deployed configuration in which the central wing section is substantially perpendicular to the fuselage.
An open refrigerated display case comprising: a refrigerated display area comprising one or more shelves; an air outlet and an air inlet opening into the display area and spaced from one another; a duct fluidically coupling the air inlet to the air outlet, the duct being configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the display area; wherein each of the one or more shelves are provided with an associated flow stabilizing device; wherein each flow stabilizing device comprises a pair of stabilizing beams which are spaced from one another so as to define an innermost stabilizing beam and an outermost stabilizing beam; wherein a first slot is formed between the innermost and the outermost stabilizing beams, the first slot extending transversely across the display area perpendicular to the direction of the air flow within the air curtain, the first slot having a stabilizing inlet, a stabilizing outlet and a stabilizing throat disposed therebetween; wherein the innermost stabilizing beam is spaced from the adjacent shelf so as to form a second slot between the innermost stabilizing beam and the shelf; and wherein the one or more flow stabilizing devices are each positioned so that the stabilizing inlet of the first slot receives the air curtain, the stabilizing throat being configured to stabilize the air flow within the air curtain which exits the flow stabilizing device via the stabilizing outlet.
An open refrigerated display case (2) comprising: a refrigerated display area (15) comprising one or more shelves (117); an air outlet (20) and an air inlet (18) opening into the display area (15) and spaced from one another; a duct (16) fluidically coupling the air inlet (18) to the air outlet (20), the duct (16) being configured to direct air flow out of the air outlet (20) across the display area (15) and toward the air inlet (18) to form an air curtain (26) across the display area (15); wherein each of the one or more shelves are provided with an associated flow stabilising device (128); wherein the one or more flow stabilising devices (128) each comprise a cellular structure which extends transversely across the display area (15) perpendicular to the direction of the air flow within the air curtain (26), the cellular structure forming a matrix of stabilising channels; wherein the one or more flow stabilising devices (128) are each positioned so that the stabilising channels receive the entire air curtain (26) and stabilise the air flow within the air curtain (26); wherein an upper surface of the or each flow stabilising device (128) is arranged so as to be substantially level with or below an upper surface of the associated shelf.
A47F 3/04 - Showcases or show cabinets air-conditioned, refrigerated
F25D 17/08 - Arrangements for circulating cooling fluidsArrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection by forced circulation using ducts
F25D 25/02 - Charging, supporting, or discharging the articles to be cooled by shelves
Refrigerated display cases; air curtains; air curtains for
use in refrigerated display cases; air flow stabilising
devices; air flow stabilising devices for use in
refrigerated display cases; parts and fittings for all the
aforesaid goods.
Refrigerated display cases; air curtains; air curtains for use in refrigerated display cases; air flow stabilising devices; air flow stabilising devices for use in refrigerated display cases; parts and fittings for all the aforesaid goods.
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Manufacture of motor racing vehicles and components for motor racing and other vehicles; manufacture of components and engineered items in high technology sectors other than the automotive sector. Research, development, design and testing of motor racing vehicles, components for motor racing vehicles and other vehicles; research, development design and testing of other high technology products in any industry sector; use of virtual technology to simulate designs for motor racing vehicles and components for motor racing vehicles; use of virtual technology and computer software modelling techniques to simulate designs for various engineered products and components; design and development of motor racing vehicles and components for motor racing vehicles using computer software modelling techniques; design, advisory and consultancy services provided to motor racing teams and to other parties in the automotive engineering field and in other high technology industry sectors; project management of engineering solutions.
