A new spray process allows for deposition below a critical velocity limit of cold spray, while providing adhesion. Post deposition heat treatment has shown excellent coating strength. A wide variety of materials can be deposited. The spray process is based on ShockWave Induced Spraying (SWIS) but with much slower spray jet projection velocities. High porosity, pore size control, and porosity control are demonstrated to be controllable. Preheating of feedstock and uniform temperature of the SWIS delivery allow for the deposition below critical velocity.

A fast-set, plural component, spray applicator (10) includes a stationary mix chamber (48) to eliminate dynamic metal-to-metal high pressure fluid sealing. The stationary mix chamber (48) mixes the plural components before dispensing the mixed components from the spray applicator (10). The spray applicator includes fluid needles (76, 78) configured to engage and disengage seals to perform the fluid valving. Needles (76, 78) control both fluid and air flow to the stationary mix chamber (48).

A spray device (A) according to the present disclosure includes: a two-fluid nozzle (11) which sprays a mist (91); a spray-device-side gas flow path (12) for supplying a gas to the two-fluid nozzle (11); a gas supply source (17) which supplies the gas to the spray-device-side gas flow path (12); a spray-device-side liquid flow path (13) for supplying a liquid to the two-fluid nozzle (11); a liquid supply source (18) which supplies the liquid to the spray-device-side liquid flow path (13); a pulse-driven liquid flow control valve (14) having a valve opening degree that is adjusted according to a pulse signal to control the flow rate of the liquid in the spray-device-side liquid flow path (13); and a controller (30) which adjusts, in multiple levels, the concentration of the mist (91) sprayed from the two-fluid nozzle 11 by adjusting the valve opening degree of the liquid flow control valve 14.

A spray device (A) according to the present disclosure includes: a two-fluid nozzle (11) which sprays a mist (91); a spray-device-side gas flow path (12) for supplying a gas to the two-fluid nozzle (11); a gas supply source (17) which supplies the gas to the spray-device-side gas flow path (12); a spray-device-side liquid flow path (13) for supplying a liquid to the two-fluid nozzle (11); a liquid supply source (18) which supplies the liquid to the spray-device-side liquid flow path (13); a pulse-driven liquid flow control valve (14) having a valve opening degree that is adjusted according to a pulse signal to control the flow rate of the liquid in the spray-device-side liquid flow path (13); and a controller (30) which adjusts, in multiple levels, the concentration of the mist (91) sprayed from the two-fluid nozzle 11 by adjusting the valve opening degree of the liquid flow control valve 14.

An improved multi-purpose sprayer for separately dispensing a first liquid product and a mixture with a spray head body is presented. The multi-purpose sprayer is operable by manually operating an actuator in a first flow position for selecting the flow of a first liquid product and a second flow position for selecting the flow of the first liquid product and the mixture.

A robot end effector (100) for dispensing an extrudable substance (102) comprises cartridge bays (122). Each one of the cartridge bays (122) is shaped to receive one of two-part cartridges (104). Each of the two-part cartridges (104) comprises a cartridge outlet (109). The robot end effector (100) also comprises a head assembly (150), comprising pairs of fittings (152). Each pair of the pairs of fittings (152) is configured to selectively supply compressed air from a pressure source (199) to contents of one of the two-part cartridges (104) when the two-part cartridges (104) are received by the cartridge bays (122) and the cartridge bays (122) are translated along a first axis (190) and along a second axis (192) so that the cartridge outlet (109) of the corresponding one of the two-part cartridges (104) is in fluidic communication with the mixer inlet (103).

A robot end effector (100) for dispensing an extrudable substance (102) comprises cartridge bays (122). Each one of the cartridge bays (122) is shaped to receive one of two-part cartridges (104). Each of the two-part cartridges (104) comprises a cartridge outlet (109). The robot end effector (100) also comprises a head assembly (150), comprising pairs of fittings (152). Each pair of the pairs of fittings (152) is configured to selectively supply compressed air from a pressure source (199) to contents of one of the two-part cartridges (104) when the two-part cartridges (104) are received by the cartridge bays (122) and the cartridge bays (122) are translated along a first axis (190) and along a second axis (192) so that the cartridge outlet (109) of the corresponding one of the two-part cartridges (104) is in fluidic communication with the mixer inlet (103).

A localized product injection system includes a composite boom tube having a carrier fluid passage within a tube body, and at least one injection product passage within the tube body isolated from the carrier fluid passage. A plurality of port stations are provided at locations along the tube body. Each of the port stations includes a carrier fluid outlet port and at least one injection product outlet port. A localized injection interface is coupled at a port station. The injection interface includes a carrier fluid input coupled with the carrier fluid outlet port, and at least one injection product input coupled with the at least one injection product outlet port. The injection interface includes at least one throttling element in communication with the at least one injection product input, a mixing chamber, and an injection port configured for localized coupling and injection to a product dispenser.

A localized product injection system includes a composite boom tube having a carrier fluid passage within a tube body, and at least one injection product passage within the tube body isolated from the carrier fluid passage. A plurality of port stations are provided at locations along the tube body. Each of the port stations includes a carrier fluid outlet port and at least one injection product outlet port. A localized injection interface is coupled at a port station. The injection interface includes a carrier fluid input coupled with the carrier fluid outlet port, and at least one injection product input coupled with the at least one injection product outlet port. The injection interface includes at least one throttling element in communication with the at least one injection product input, a mixing chamber, and an injection port configured for localized coupling and injection to a product dispenser.

A two fluid spray equipment includes: two fluid nozzles of a plurality of systems; a water supply apparatus for supplying the pressurized water at common pressure; a compressed air supply apparatus for supplying the compressed gas at common pressure; and a plurality of spray control units for controlling spray of the two fluid nozzle of each of the plurality of systems, wherein each of the plurality of spray control units includes a water pressure control unit for performing control to reduce pressure of the pressurized water supplied from the water supply apparatus based on a spray command value without pressurization, and an air pressure control unit for controlling pressure of the compressed gas supplied from the compressed air supply apparatus based on the spray command value.