Patent classifications
B22D25/02
Rough cast blading with modified trailing edge geometry
A rough cast blading of this blade includes, a suction sidewall and/or a pressure sidewall of this blading intended to respectively form the suction sidewall and/or the pressure sidewall of the blade, a casting allowance extending over a determined width from a trailing edge of the blading intended to form the trailing edge of the blade in the direction of a leading edge of the blading intended to form the leading edge of the blade, except for a reserved area adjacent to the trailing edge of the blading and whose width is at least one radius of the trailing edge of the blading, over at least part of the height of the blading.
STEERING WHEEL CORE METAL
There is provided a core of a steering wheel to which a module can be stably fixed while manufacturing cost is suppressed. Core (28) includes boss core portion (36) at which a gate of a mold is set and which is connected to a steering shaft. Core (28) includes a rim core portion that is positioned around boss core portion (36). Core (28) includes a plurality of spoke core portions (37) that connect boss core portion (36) to the rim core portion. Core (28) includes connecting portion (66) that includes fixing portion (66e) to which a module is fixed and connects spoke core portions (37) positioned on upper and lower sides in a neutral state of the steering wheel. Core (28) includes expansion portion (71) of which a width gradually increases downward toward upper end portion (66a) of connecting portion (66) in the neutral state of the steering wheel.
Method for producing a cylinder head and cylinder block
Methods and systems are provided for a sub-assembly. In one example, a method for the subassembly includes separating a monoblock of the subassembly into two separate portions and applying a sealing material to at least one of the two separate portions and rejoining the portions.
Method for producing a cylinder head and cylinder block
Methods and systems are provided for a sub-assembly. In one example, a method for the subassembly includes separating a monoblock of the subassembly into two separate portions and applying a sealing material to at least one of the two separate portions and rejoining the portions.
Multi-piece integrated core-shell structure for making cast component
Partial integrated core-shell investment casting molds that can be assembled into complete molds are provided herein. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. Core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold are also provided herein.
Multi-piece integrated core-shell structure for making cast component
Partial integrated core-shell investment casting molds that can be assembled into complete molds are provided herein. Each section of the partial mold may contain both a portion of a core and portion of a shell. Each section can then be assembled into a mold for casting of a metal part. The partial integrated core-shell investment casting molds and the complete molds may be provided with filament structures corresponding to cooling hole patterns on the surface of the turbine blade or the stator vane, which provides a leaching pathway for the core portion after metal casting. Core filaments that can be used to supplement the leaching pathway, for example in a core tip portion of the mold are also provided herein.
TURBINE ENGINE VANE EQUIPPED WITH A COOLING CIRCUIT AND LOST-WAX METHOD FOR MANUFACTURING SUCH A VANE
The invention relates to a turbine engine vane including a blade extending along a radial axis and a first cooling circuit arranged inside the blade, the first cooling circuit including a first cavity and a second cavity disposed downstream of the first cavity in a direction of circulation of a coolant in the blade, the first and second cavities radially extending inside the blade and being at least partly separated by a first radial partition having a radially internal free end, which at least partly demarcates a first coolant passage connecting the first and second cavities. According to the invention, the radially internal free end is enlarged by having a general transverse section substantially in the form of a keyhole.
TURBINE ENGINE VANE EQUIPPED WITH A COOLING CIRCUIT AND LOST-WAX METHOD FOR MANUFACTURING SUCH A VANE
The invention relates to a turbine engine vane including a blade extending along a radial axis and a first cooling circuit arranged inside the blade, the first cooling circuit including a first cavity and a second cavity disposed downstream of the first cavity in a direction of circulation of a coolant in the blade, the first and second cavities radially extending inside the blade and being at least partly separated by a first radial partition having a radially internal free end, which at least partly demarcates a first coolant passage connecting the first and second cavities. According to the invention, the radially internal free end is enlarged by having a general transverse section substantially in the form of a keyhole.
Loader lift arm
Disclosed embodiments include power machines and related structures of lift arms, implement carriers, follower links, and driver links which improve manufacturability, reduce component failures, and improve power machine design and functionality. In some embodiments, lift arm structures include cast lower lift arm portions. The cast lower lift arm portions include contoured upper ends which are sleeved onto contoured lower ends of upper lift arm portions to control stress points and to reduce stresses on welds. The follower link structures can include follower links which are configured to be positioned at least partially outside of the lift arm structure to improve rear visibility. The driver link structures can be configured to be laterally overlapping with innermost surfaces on the lift cylinder, but configured such that as the lift arm is raised the laterally overlapping portions are moved above the innermost surfaces of the lift cylinder.
Loader lift arm
Disclosed embodiments include power machines and related structures of lift arms, implement carriers, follower links, and driver links which improve manufacturability, reduce component failures, and improve power machine design and functionality. In some embodiments, lift arm structures include cast lower lift arm portions. The cast lower lift arm portions include contoured upper ends which are sleeved onto contoured lower ends of upper lift arm portions to control stress points and to reduce stresses on welds. The follower link structures can include follower links which are configured to be positioned at least partially outside of the lift arm structure to improve rear visibility. The driver link structures can be configured to be laterally overlapping with innermost surfaces on the lift cylinder, but configured such that as the lift arm is raised the laterally overlapping portions are moved above the innermost surfaces of the lift cylinder.