17 results about "Mechanical fan" patented technology

One aspect of the invention relates to a method for measuring the power of the fan of a turbomachine comprising a drive shaft and a fan shaft, and in particular a method for measuring fan power using only one sensor from among a fan shaft speed sensor and a drive shaft speed sensor, the other speed being modeled from the measurement of the first speed. Figure to be published with the abstract: Figure 5

Variable pitch fan blade (8a) for an unfaired turbomachine fan, the blade (8a) comprising an aerodynamic blade (9) and a base (10), the blade (9) comprising a recess opening simultaneously onto the upper and lower surfaces (14) and a leading edge (15) of the blade (9), the blade (8a) further comprising a measuring device (26) housed in the recess and clipped onto the blade (9), the measuring device (26) comprising a streamlined body (28) whose outer surface (29) is complementary to the outer surface (30) of the blade (9) to ensure aerodynamic continuity, the body (28) carrying at least one measuring instrument (31) configured to measure at least one parameter of an airflow upstream of the blade (9). Figure for the abstract: 2

This invention discloses an emergency engagement structure for a fan clutch, relating to the field of engine cooling technology. It addresses the problem in mechanical fans with clutches where leakage of transmission oil within the clutch causes the fan to lose power and stop, leading to diesel engine overheating and shutdown. The emergency engagement structure includes a drive shaft, a driven shaft, and an engagement unit. The drive shaft is connected to the engine, and the driven shaft is mounted on the fan. The drive shaft transmits rotation to the driven shaft and the fan via transmission oil. The engagement unit is located within the hollow portion of the driven shaft and serves to rigidly connect the driven shaft to the drive shaft. The actuator of the engagement unit is an electric actuator that pushes a cylindrical pin through a through-hole in the side wall of the driven shaft, abutting against the drive shaft. This achieves a rigid connection between the driven and drive shafts, allowing the fan to continue operating without relying on transmission oil and preventing diesel engine overheating.

The utility model relates to an electro-hydraulic combined control flow valve which comprises a valve body, a first control assembly, a second control assembly, an oil inlet and an oil drainage port are arranged in the valve body, the first control assembly comprises a valve rod, an oil inlet hole is formed in the side face close to one end of the valve rod, the oil inlet hole of the valve rod is communicated with the oil inlet, and an oil outlet is formed in the other end of the valve rod. The space at one end of the oil outlet of the valve rod is communicated with a second control assembly through an oil way, the second control assembly is communicated with an oil drainage port, and the oil drainage port is communicated with the space on the outer side of the valve rod. According to the electro-hydraulic combined control flow valve, compared with a traditional cooling system, the plunger pump can rapidly adjust the rotating speed of the fan according to electric signals and needs, the phenomenon of supercooling or superheating caused by a fixed rotating speed cooling mode of a traditional mechanical fan is avoided, the cooling effect is greatly improved, waste of energy consumption of an engine is avoided, and the service life of the engine is prolonged. And an energy-saving mode of providing on demand is achieved.

An assembly of a turbomachine fan casing (2) and a nacelle air duct (3), the turbomachine extending along a longitudinal axis (X) and comprising a fan mounted to rotate about the longitudinal axis (X) so as to accelerate an upstream to downstream airflow, the fan casing (2) comprising an upstream flange (21) connected to a downstream flange (31) of the air duct (3) by a plurality of mechanical components (4). The assembly comprises at least one stiffening element (5), positioned radially outside the air duct (3) and the fan casing (2), the stiffening element (5) having a U-shape defining a base (50), an upstream arm (51) and a downstream arm (52), the upstream arm (51) being connected to the downstream flange (31) and the downstream arm (52) being connected to the upstream flange (21). Figure from the summary: Figure 4

This invention discloses an ultra-thin micro mechanical fan and its assembly method, comprising a base, a rotor assembly, and a stator assembly. A central tube is integrally injection-molded from the upper surface of the base. The rotor assembly includes a shaft core and fan blades, with the shaft core inserted into the central tube and the fan blades sleeved outside the shaft core. The stator assembly includes a PCB stator board. An annular limiting groove is provided around the outer periphery of the base, and the PCB stator board is installed and fixed within the annular limiting groove. A solder pad structure is provided at the end of the PCB stator board away from the fan blades. The central tube, integrally injection-molded from the base and used as a bearing, and the annular limiting groove directly install and fix the PCB stator board. The PCB stator board replaces the self-adhesive coil stator. This eliminates the wall thickness space of the oil-impregnated bearing itself and the wall thickness superposition space required for the base central tube and bearing to fit together, while also eliminating the traditional FPC flexible circuit board and adhesive backing structure, saving the axial thickness of the FPC and adhesive backing.

The application provides a heat management system and method for a commercial vehicle, which utilizes the characteristic of large heat dissipation of the intercooling system in the commercial vehicle, increases the heating of the battery and driving by the waste heat of the intercooling system, and further reduces the heating energy consumption. Meanwhile, the double-input power takeoff is used to couple the mechanical fan, the motor and the engine driving shaft at the same time, and the fan is driven to operate by the motor only when the motor or the battery needs to be cooled, and the fan is driven to operate by the engine when the engine needs to be cooled, which can reduce the number of fans, improve the system integration and save the front end layout space of the vehicle. Meanwhile, the energy saving performance is considered, the double-input power takeoff can be provided with a multi-gear transmission ratio adjustment function, the transmission speed ratio is dynamically adjusted according to the heat load and the input end speed, so that the fan operates at a suitable speed.

The present invention relates to a novel ventilation structure for BIPV modules, which comprises photovoltaic modules matched with a building wall, the back of the photovoltaic modules is installed on the facade of the building wall in parallel through a plurality of steel columns, a ventilation gap is formed between the photovoltaic modules and the building wall, an air inlet passage for forming a constricted air inlet is transversely inserted in the bottom of the ventilation gap, and an air outlet chimney as an air outlet is longitudinally inserted in the top of the ventilation gap. The air duct between the photovoltaic modules and the building wall is modified, the natural convection in the ventilation gap can be accelerated to a high wind speed level similar to that of forced convection without requiring any mechanical fan device, enhancing the ventilation cooling of the BIPV modules without increasing power consumption.

The invention relates to a blower module (3) comprising: - a blade pitch control system (96) comprising: - at least one safety device (97) comprising a safety member movable in translation about the longitudinal axis (X) and movable between: a first position (P1) in which the body (54) of the actuator (52) is free to move between its flag and pitch positions, and a second position (P2) in which the body (54) of the actuator (52) is driven towards the flag position and free to move along a limited stroke relative to a defined stroke between the flag and pitch positions, - a drive device (98) for the safety member, and - a control device (99) for the drive device (98). Illustration figure: 2

The utility model discloses a heat dissipation structure of a high-power dual-purpose fuel mute type generator set, and belongs to the technical field of dual-purpose fuel generator sets. According to the utility model, a box type built-in sound-absorbing cotton design is adopted, so that rainproof and mute effects can be achieved; a rotor fan is arranged at a generator driving end, a mechanical fan is arranged on an engine water pump wheel, and an electronic fan on a radiator assembly is matched with an air inlet and an air outlet on a case to meet the radiating requirement; a control panel system, an engine pressure reducing valve and a scavenging air valve are axially arranged, an engine, a generator and a heat dissipation assembly are axially arranged, an engine air filter and a 12V storage battery are arranged up and down and then are axially arranged with an engine silencer, and the internal space of a unit is fully utilized, so that the unit is compact in layout and smaller in size; in the running process of the unit, the engine ECU can automatically switch the fuel state by judging whether the engine rotating speed, the water temperature and the fuel gas pressure reach target values or not, and the conditions of engine rotating speed fluctuation, even shutdown and the like cannot be caused.

The invention relates to a fairing housing (200) for a fan blade for an aircraft turbomachine, this housing having an annular shape around a longitudinal axis (A) and having at its axial ends annular fixing flanges (2041, 2042), respectively upstream (2041) and downstream (2042), the housing being made of composite material and comprising a preform made by weaving warp (FC) and weft (FT) yarns, and a polymer matrix in which this preform is embedded, characterized in that, between an intermediate section (202a) and at least one of the flanges, the housing (200) comprises another section (202b) of which at least a part of the warp yarns are made from fibers in a first material of a first stiffness, and the rest of the warp yarns are made from fibers in a second material of a second stiffness greater than that of the first material. Figure for the abbreviation: Figure 3

The invention relates to an inlet cone (9) for an aircraft turbomachine fan mounted to rotate about an axis of rotation (R), comprising an upstream cone (1) fixed by at least one first fixing screw (4) to a downstream ferrule (2), said first fixing screw (4) being configured to fit into a first threaded orifice (40) formed partly in said upstream cone (1) and in said downstream ferrule (2), and opening into a channel (39) machined on said upstream cone (1). According to the invention, the inlet cone (9) also comprises a cover (3) configured to fit onto said upstream cone (1) so as to close said channel (39), the upstream cone (1), the downstream ferrule (2), and said cover (3) together forming a substantially continuous external surface of said inlet cone (9). Figure 5

The present application relates to a new ventilation structure for BIPV module, comprising a photovoltaic assembly matched with a building wall, the back of the photovoltaic assembly is installed on the facade of the building wall in parallel through a plurality of steel columns, a ventilation gap is formed between the photovoltaic assembly and the building wall, the bottom of the ventilation gap is transversely inserted with an air inlet channel for constituting a contraction air inlet, and the top is longitudinally inserted with an exhaust chimney as an air outlet. The present application modifies the air duct between the photovoltaic assembly and the building wall in a simple way, so that the natural convection in the ventilation gap can be accelerated to a high wind speed level similar to the forced convection condition, without any mechanical fan device, and the ventilation cooling of the BIPV module can be enhanced without increasing the power consumption. In addition, the improved ventilation structure of the present application can be easily realized without a large amount of installation work, and the related fixed cost is far lower than the modification of a single solar panel.

The utility model relates to the field of electrical equipment, and discloses a main and auxiliary engine indirect air cooling system arranged on the same tower, an indirect cooling tower is a natural ventilation indirect air cooling tower, a cooling sector comprises a main engine cooling sector and an auxiliary engine cooling sector, and the auxiliary engine cooling sector is an independent sector capable of being withdrawn and started and stopped; a plurality of main engine cooling sectors and one or more auxiliary engine cooling sectors are sequentially arranged in the indirect cooling tower along the circumference, a plurality of radiators are arranged at the bottoms of the cooling sectors of the indirect cooling tower, and shutters capable of being automatically adjusted along with the temperature are arranged on the peripheries of the cooling sectors of the indirect cooling tower; the circulating water system comprises a water pipe mother pipe and a cooling sector water pipe system, the water pipe mother pipe is circumferentially arranged along the sector in the indirect cooling tower, the cooling sector water pipe system is communicated with equipment in the cooling sector and the water pipe mother pipe, and each pipeline is provided with a valve; and each system in the circulating water system provides corresponding supporting facilities for the main machine and the auxiliary machine respectively. The main cooling system and the auxiliary cooling system are arranged on the same tower, a mechanical fan is replaced with natural ventilation, and energy conservation and emission reduction can be achieved.

The invention relates to a fan module for an aircraft turbomachine, the fan module having a longitudinal axis (X) and comprising: - variable-pitch blades (30) regularly distributed around the longitudinal axis (X), each having a pitch axis (C), and - a system for changing the pitch of the blades (30), characterized in that the changing system comprises: actuation devices (52) for the blades (30), each actuation device (52) being connected to a blade (30), each actuation device (52) comprising: - a drive mechanism (54) for rotating the blade (30) connected to the blade (30), and - an actuator (53) configured to actuate the drive mechanism (54). (Short figure: 2)

1. Name of the designed product: mechanical fan. 2. Use of the designed product: for ventilation and equipment cooling. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view 1.