摘要:
A combined electrical hand tool having an operating mode selection switch (1) with additional special functions that can be switched using a displaceable linkage (5) that can be displaced by the operating mode selection switch arranged between a lubricated assembly (2a) having a coupling (3a) and the external housing (4), wherein in at least two separate lubricant-tight assemblies (2a, 2b) at least one switchable coupling (3a, 3b) is present, which can be moved over an outwardly extending actuator (6a, 6b) that is mounted lubricant-tight.
摘要:
An attachment element for securing a depth stop (2) of a hand-held power tool (4) includes a pin guide 5 with one or more noses (8a, 8b) for mounting the attachment element (1) on the power tool (4) and a flange attachment nose (9) axially offset with respect to the mounting nose or noses (8a, 8b) for formlockingly engaging in a respective opening(s) (10, 10a) provided on the power tool (4). The attachment element is secured on the tool with a fastening member (6).
摘要:
A precipitation device for removing pieces of metal from the lubricating fluid for a transmission includes a screen in the path of flow of the lubricating fluid and a permanent magnet at one end of the screen. The screen is made of a nonmagnetic material such as aluminum and is mounted on a transmission bearing plate so as to be parallel to the main flow path for the lubricating fluid so that partial streams of the lubricant pass through openings in the screen.
摘要:
In order to provide a torque-transmitting joint comprising a tube of fiber-reinforced plastic material and a metallic inner sleeve which has a knurled outer surface, the inner sleeve is pressed into retaining regions of the tube having reinforcing fibers extending substantially entirely in the circumferential direction, whereby the knurling produces a counter-knurling because of the visco-elastic deformation of the material of the retaining regions.
摘要:
A method actuates two clutches which transmit torque in parallel in a drive train of a motor vehicle and have different successive fixed speed transmissions as gear stages between a drive shaft and an output shaft. The clutches are triggered during acceleration processes of the motor vehicle that both clutches simultaneously transmit torques and a resulting transmission of torque takes place continuously between the drive shaft and the output shaft. The rotational speed of the drive shaft is greater than the respective rotational speed of the respective transmission input shaft of the respective partial train at the secondary end of the respective clutch during the entire starting process, or the rotational speed of the drive shaft is greater than or the same as the respective rotational speed of the respective transmission input shaft of the respective partial train at the secondary end of the respective clutch during an acceleration process.
摘要:
A twin clutch transmission for a motor vehicle has two input shafts, two clutches, and driving shafts. The first input shaft can be actively connected to the first clutch, and the second input shaft can be actively connected to the second clutch. The first driving shaft is situated underneath the input shafts and the second driving shaft is situated above the input shafts, or vice versa. The input and driving shafts have intermeshing gear wheels, with fixed gears and loose wheels or idler gears. Each driving shaft has a gear wheel for transferring torque to the axle drive. A further shaft implements the reverse gear RG. A highly versatile and compact transmission is obtained by providing a third driving shaft that has a drive gear wheel for transferring torque to the axle drive, and the drive gear wheels of the driving shafts engage with an axle drive gear.
摘要:
A screwdriver is disclosed, comprising a removable depth stop which selectably either, when equipped with the depth stop, allows noiseless shutoff or, with the depth stop removed, allows torque-dependent shutoff, without any chattering occurring when the machine continues to run. To this end, an adjustable torque-dependent release clutch is combined with an entrainment clutch of known type, which is additionally preceded by a disconnect clutch, a locking means being provided in order to hold a throwout ring, which forms one of the two elements of the disconnect clutch, in a predetermined position under load. In this way, noiseless operation is ensured after release, both when working with the depth stop and in the case of torque-dependent shutoff, with the depth stop removed.
摘要:
An improved process for the recovery of proteins from aqueous solutions of proteins, for example, proteases from fermenter solutions, by precipitation by means of salts and filtration, optionally with the use of common filtration aids, which is characterized in that a polyoxyethylene glycol having a molecular weight of 400 to 1,000, preferably 500 to 800, is added in an amount of from 0.5 to 3% by weight to the aqueous solution of proteins before said precipitation.
摘要:
The invention provides a method of detecting regional variations in oxygen uptake from the lungs of an air-breathing animal subject, said method comprising administering into the lungs of said subject a diagnostically effective amount of a gaseous hyperpolarized magnetic resonance imaging agent, detecting the magnetic resonance signal from said agent in said lungs, determining the temporal variation in relaxation rate for said signal for at least one region of interest within said lungs, and from said variation generating a qualitative or quantitative value or image indicative of the oxygen uptake from the alveolar space in said at least one region of interest.
摘要:
A shaft assembly is assembled by press-fitting a tube of fiber-synthetic material and a rigid connection structure which includes an outer sleeve and an inner connecting member. The outer sleeve has axially extending inward projections which engage the tube at one end of the sleeve and the inner connecting member at the other end of the sleeve. This permits the sleeve and the inward projections therein to be made in a simpler manner.