The invention relates to a liquid jet cutting method using a compressor unit (3) that comprises a liquid for generating a liquid jet and using a nozzle (10) that is connected to the compressor unit (3) and has an outlet opening (11) through which the compressed liquid exits in the form of a liquid jet (14). The flow of the compressed liquid to the outlet opening (11) can be interrupted or released by means of an interruption unit (8). The method has the following steps: compressing the liquid by means of the compressor unit (3), moving the outlet opening (11) closer to a workpiece (15) to be machined up to a machining distance (d), and alternatively releasing and interrupting the liquid jet (14) by means of the interruption unit (8), wherein the nozzle is simultaneously moved relative to the workpiece in a machining direction (22), and the machining angle between the workpiece surface (115) and the liquid jet (14) is less than 90°.

A machine tool is provided which can execute various works while suppressing increase in cost or size. The machine tool includes a tool spindle device which is a movable member which can move with respect to a mounting surface of the machine tool, and one or more serial-manipulator-type robots attached on the tool spindle device, which can move with the tool spindle device, and which have two or more degrees of freedom, and the robot includes two or more end effectors provided at positions different from each other with one or more joints therebetween.

The disclosure provides chips formed by slicing with an apple cell clean water jet scalpel and a processing technology. The processing technology comprises the following specific steps: harvesting fresh fruits, sorting, peeling, slicing, drying and packaging to obtain the apple crispy chip. According to the disclosure, the tangxin apple is peeled by adopting an ultrahigh pressure water jet flow cutting technology, cut into slices with a thickness of 5 mm and inoculated for 15 min in 30° C. and 30% Lactobacillus brevis fermentation broth. PPO is a terminal oxidase with Cu.sup.2+ as a prosthetic group, and Lactobacillus brevis and Lactobacillus plantarum are complexed with Cu.sup.2+, leading to rapid oxygen consumption to generate organic acid and CO.sub.2, quickly reduction of pH and creation of an approximate oxygen-free environment to effectively inhibit PPO activity while removing oxygen required in enzymatic browning, thereby effectively inhibiting browning.

A method for producing a diffusion cooling hole extending between a wall having a first wall surface and a second wall surface includes forming a cooling hole inlet at the first wall surface, forming a cooling hole outlet at the second wall surface, forming a metering section downstream from the inlet and forming a multi-lobed diffusing section between the metering section and the outlet. The inlet, outlet, metering section and multi-lobed diffusing section are formed by laser drilling, particle beam machining, fluid jet guided laser machining, mechanical machining, masking and combinations thereof.

The invention relates to a device for the erosive processing and/or the cleaning of a material or of a material surface by means of at least one high-pressure fluid jet, comprising a nozzle (1) for outputting a high-pressure fluid jet and an apparatus (2) arranged upstream of the nozzle (1) for producing a pulsed high-pressure fluid jet, wherein the apparatus (2) comprises at least one valve (3). According to the invention, the valve (3) is designed as a servo valve and has an axially movable valve piston (4) for connecting a valve feed (5) to a valve outlet (6) such that the flow through the valve (3) can be specified by means of the axial position of the valve piston (4). The invention further relates to a method for operating a device according to the invention.

The invention features methods and apparatuses for altering a cutting operation during operation of the pressurized liquid jet cutting system. A pressurized liquid jet cutting system includes a pressurized fluid jet cutting head having a plurality of components. The cutting head further includes a sensor configured to sense an operating condition. The sensor transmits a value of the operating condition to a computing device, which alters a subsequent cutting operation. Further, the fluid jet cutting head is configured to work with a data storage mechanism and a reader, such that the data storage mechanism in contact with a body of the fluid jet cutting head is configured to communicate information to a reader of the pressurized liquid jet cutting system. The information is usable to determine a condition of replacement (e.g., a remaining usable life) of the replaceable component, change an operating pressure, change a cutting speed, or alter another operating parameter of the pressurized liquid jet cutting system.

A pump including one or more pumping chambers, one or more drive mechanisms for driving the one or more pumping chambers and a logic arrangement. The first pumping chamber of the one or more pumping chambers has a first inlet check valve, a first outlet check valve and a first temperature sensor. The logic arrangement is configured to identify a leak by applying logic to at least resistance-data indicative of a resistance of the first pumping chamber to the driving and temperature-data at least based on output from the first temperature sensor.

A high pressure pump including a linear actuator having a servo motor to axially rotate a hollow rotor shaft in alternating directions, the servo motor having a stator positioned co-axially around the hollow rotor shaft with an interior of the rotor shaft being co-axially coupled to a drive member to convert axial rotation into reciprocal displacement, the drive member being constrained against linear movement and supporting a shaft. At least one piston is coupled to the shaft and the piston is arranged within a cylinder to define a pumping chamber, whereby alternating rotation of the rotor shaft causes reciprocal linear displacement of the piston to pressurize fluid in the pumping chamber. A drive mechanism includes a controller coupled to a servomotor and an encoder to measure movement of the hollow rotor or output shaft and send a feedback signal proportional to the movement to the controller.

The invention relates to a tool for crushing coke in drums with of high-pressure water jets, which has a housing 2 with a feed system 4 for high-pressure water, and a housing wall 3 with outwardly directed boring and cutting nozzles 5a, 5b, out of the openings 7 of which high-pressure water jets 28 exit, as well as flow channels 4g, 4h, which connect the feed system 4 with the boring and cutting nozzles 5a, 5b. So that the opening of the boring and cutting nozzles is permanently protected and kept free of deposits of coke or the like, the opening of the boring or cutting nozzle is respectively closable by a one- or multi-part flap, which is adjustable between a closed position and an open position.

A linear electro-mechanical actuator (1) preferably for water cutting, makes it possible to significantly improve the working conditions of the actuator (1), so as to optimize its load capacity and increase the working life of the actuator (1), and makes it possible to reduce the risk of breakage or damage of the actuator (1) following loss of control of the movement aimed at producing the force applied by the actuator (1).