250results about How to "Short structure length" patented technology

An electric power tool has a device housing with a rear grip extending in the longitudinal direction of the device housing. The device housing has first opposed housing sides and second opposed housing sides. An electric drive motor and its electronic control are arranged in the device housing. A battery pack compartment arranged in the device housing receives a battery pack that has a parallelepipedal shape and extends in a direction of a height axis, width axis and depth axis. The battery pack is arranged such that the width axis and the height axis extend transversely to the longitudinal axis of the device housing. The battery pack has narrow sides extending approximately parallel and at a minimal spacing relative to the first opposed housing sides, respectively. The battery pack has opposed end faces neighboring the second housing sides, respectively.

A fluid pump, in particular for the coolant and heating system of a motor vehicle, has a stator (21) of claw pole construction and a rotor (6), separated from the stator (21) by a pipe (11), which is immersed in the coolant and forms a vane wheel. The rotor (6) is disposed radially inside the stator (21).

A subassembly for a video endoscope with a picture-recording sensor (9) which is electrically conductively arranged on a flexible circuit board (8) which next to the sensor (9) is bent at least at one side and is conductively connected to at least one electrical cable proximally of the sensor (9).

The invention relates to a device for melt-spinning and winding synthetic threads, comprising a spinning device, a treatment device and a winding machine. The treatment device is provided with a take-off godet for guiding the threads before the threads are fed and distributing the threads to a plurality of winding points in the winding machine. The take-off godet is disposed above the winding machine and guides the threads on the circumference such that the threads run parallel next to each other. The take-off godet is arranged transversely to a winding spindle, above the winding machine. Thewinding machine is equipped with a plurality of top thread guides, which are mounted upstream of the winding points and are located in a feeding plane. In order to improve the application process regarding the distribution of the filaments on the individual winding points when starting the process or pausing the process, the take-off godet and the group of the top thread guides for applying the threads into the winding points of the winding machine are designed to be moveable relative to each other according to the invention.

The apparatus (10) for generating a mixture of reducing agent and air has a feed pump (16), by which reducing agent is pumped and which has a pump housing (22, 32). The apparatus (10) furthermore has a mixing chamber (50), into which reducing agent and air pumped by the feed pump (16) can be introduced; the mixing chamber (50) is embodied in a mixing chamber body (36). The mixing chamber body (36) communicates directly with the pump housing (22, 32) of the feed pump (16) and forms a cap of the pump housing (22, 32). The feed pump (16) has a drive shaft (24) for a feed element (30), which protrudes into the pump housing (22) of the feed pump (16), and the mixing chamber body (36) is disposed at least approximately radially to the drive shaft (24). The apparatus (10) has a compact structural size and only a slight reducing agent-filled idle volume.

A fuel injection system having an injection valve, a line supplying fuel at high pressure to the injection valve a control valve controlling the pressure in a control chamber communicating with the line. The control valve has a movable valve part is actuatable by an actuator via a hydraulic coupler having two pistons cooperating with a coupler volume of the coupler. A seat of the movable valve part has an inside cross-sectional area f3, with means for filling the coupler volume via guide gaps of the pistons with fuel under pressure. The pistons are located parallel to and inside one another and a booster chamber is located on the ends of the pistons toward the actuator. In the interior of the outer piston defines a filling chamber which communicates with the line and one of the pistons has a cross-sectional area f4 is mechanically coupled to the actuator via a rod having a cross-sectional area f5. The other piston which has a piston area f2, actuates the control valve via a rod having a cross-sectional area that is smaller than f2 and the direction of the closing motion of the movable valve part matches the direction of fuel flowing out of the control chamber so that the control valve is at least partially force-balanced because of the pressure acting on the further piston in the booster chamber.

A hand power tool has a percussion bolt, a hammer barrel receiving the percussion bolt, a sealing element effecting sealing between the percussion bolt and the hammer barrel, a restraining element that retains the sealing element at a predetermined point along the hammer barrel, and a counterpart element fixing the restraining element in a longitudinal direction of the hammer barrel, wherein the restraining element is located on an outer face, toward the hammer barrel, of the sealing element.

The invention relates to a day and night confocal high-definition lens with a large target area. The day and night confocal high-definition lens is characterized in that a front fixing group A with positive focal power, a zooming group B with negative focal power, a rear fixing group C with positive focal power and a compensating group D with positive focal power are sequentially arranged in an optical system of the lens along a light incident direction from left to right; the front fixing group A comprises a positive crescent lens A-1, a positive crescent lens A-2 and a first gluing group with a negative crescent lens A-3 and double convex lenses A-4, and the negative crescent lens A-3 and the double convex lenses A-4 are hermetically connected with one another; the zooming group B comprises double concave lenses B-1 and a second gluing group with double concave lenses B-2 and double convex lenses B-3, and the double concave lenses B-2 and the double convex lenses B-3 are hermetically connected with one another; the rear fixing group C comprises a positive crescent lens C-4 and a third gluing group with double convex lenses C-1, double convex lenses C-2 and a negative crescent lens B-3, and the double convex lenses C-1, the double convex lenses C-2 and the negative crescent lens B-3 are hermetically connected with one another; the compensating group D comprises a negative crescent lens D-4 and a fourth gluing group with double convex lenses D-1, a negative crescent lens D-2 and double convex lenses D-3, and the double convex lenses D-1, the negative crescent lens D-2 and the double convex lenses D-3 are hermetically connected with one another. The day and night confocal high-definition lens has the advantages of high optical indexes and resolution and adaptability to requirements of high-definition video camera shooting.

The invention relates to a rotary drive assembly for a drill rod having an outer tube and an inner rod extending at least in sections inside the outer tube, comprising a first gear unit having at least a first drive unit for driving the inner rod in a rotating manner and a second gear unit, which is offset to the said first gear unit in the longitudinal direction of the drill rod and has at least a second drive unit for driving the outer tube in a rotating manner. In accordance with the invention provision is made for the second drive unit to be spaced from the second gear unit and for the second drive unit to be arranged adjacent to the first drive unit on the first gear unit.

The invention provides an ultrasound measuring device and method for monitoring the flow speed of a liquid. Theultrasonic measurement apparatus (10) has an ultrasonic measurement zone (36) with at least a pair of ultrasonic transducers (38), an evaluation unit for determining the flow velocity from a propagation time difference of ultrasound transmitted and received with and against the flow; a deflection unit, by means of which the fluid from the main flow direction is deflectable and suppliable to the ultrasonic measurement zone (36), wherein the deflection unit (20, 26, 32) forms a loop. In the method, the flow velocity is determined from a propagation time difference of ultrasound transmitted and received with and against the flow from a pair of ultrasonic transducers in an ultrasonicmeasurement zone and the fluid is deflected from the main flow direction and supplied to the ultrasonic measurement zone for the measurement, wherein the ultrasonic measurement takes place whilst thefluid is deflected such that it flows in a loop. It is the object of the invention to enable an accurate and simple ultrasonic measurement of flow velocities.

The invention relates to a large-target-surface high-precision mold high-definition zooming monitoring lens. An optical system of the lens is provided with a front lens battery A with negative focal power, an iris diaphragm C and a rear lens battery B with positive focal power in sequence in the light incidence direction. The front lens battery A is provided with a negative meniscus lens A-1 and a first bonding lens battery in sequence, wherein the first bonding lens battery is composed of a biconcave lens A-2 and a biconvex lens A-3 in a sealed connection mode. The rear lens battery B is provided with a biconvex lens B-1, a negative meniscus lens B-2, a negative meniscus lens B-3, a second bonding lens battery and a third bonding lens battery in sequence, wherein the second bonding lens battery is composed of a biconvex lens B-4 and a biconcave lens B-5 in a sealed connection mode, and the third bonding lens battery is composed of a biconvex lens B-6 and a negative meniscus lens B-7 in a sealed connection mode. According to the large-target-surface high-precision mold high-definition zooming monitoring lens, the focal power of the front lens battery A and the focal power of the rear lens battery B are distributed reasonably, and the two bonding lens batteries are adopted in the rear lens battery B, so that the lens meets the performance indexes of large relative aperture, wide angle, small structure length, large surface and high-definition pixels.

The invention relates to an electric machine, in particular starting device, and a method for producing a support bearing assembly of an electric machine. The electric machine (10), in particular starting device, has a stator (29), and a rotor (37) which is equipped with a drive shaft and which is arranged radially in an inner side of the stator (29). Support bearing arrangements (66,69) are arranged on a rotating-axial side of the rotor. The arrangement causes bearing forces (Fa, Fr) in radial and rotating-axial direction, and arranged in a bearing cover (60). The arrangement supports a drive shaft (44), and a screw element (91) is held in a retaining thread (94) of the bearing cover by a screw-in thread. The screw element causes radial bearing force and axial bearing force. A cavity i.e. blind hole, is formed in the screw element. An independent claim is also included for a method for manufacturing support bearing arrangement of an electrical machine.

The invention relates to a teleconverter for an wide-angle high-magnification zoom lens, wherein a front group A with a negative focal power and a rear group B with a positive focal power are sequentially arranged in the optical system of the teleconverter along the left-to-right incident direction of a light ray; the front lens group A is sequentially provided with a negative meniscus lens A-1 and a biconcave lens A-2, and the lens rear group B is a glued group formed by airtightly connecting a negative meniscus lens B-1 with a biconvex lens B-2; the mechanical structure of the teleconverter comprises a lens cone, a front group installation seat and a rear group installation seat are opened in the lens cone, the front lens group A is placed on the front group installation seat and tightly pressed by a front press ring, the rear lens group B is placed on the rear group installation seat and tightly pressed by a front press ring, and an AB space ring is arranged between the biconcave lens A-2 and the negative meniscus lens B-1. The teleconverter has the advantages of being high in zoom ratio, large in wide angle, high in adaptivity and the like, as well as is beneficial to expansion for the view field angle of the wide-angle zoom lens, and is good in imaging effect in the high-magnification zoom process of the zoom lens.

The invention relates to a focusing optical system (20) for material machining with laser radiation. The system includes a collimator optical device (21) for collimating a divergent working laser beam(121) and a focusing optical device (22) for focusing a working laser beam (12) onto a workpiece (14) to be machined, wherein the collimator optical device (21) comprises a first moving lens or lensgroup (211) having a positive focal length for focusing a working laser beam source (18) into a virtual intermediate focus, and a second moving lens or lens group (212) having a negative focal lengthfor focusing the virtual intermediate focus to infinity. A laser machining head (1) with a housing (10) is also provided, and a working laser beam (12) can be guided to pass through the housing. The focusing optical system (20) according to the invention functions to generate a working focus (15).

The present invention discloses an electric hydraulic test plugging valve for steam-electric power generation, and it is characterized by that the lower portion of valve body of plugging valve is equipped with a cross pipe which can be used for connecting pipeline, the upper portion of the valve body is equipped with valve cover, and on the top portion of said valve body an electric device is mounted, the upper end of the valve rod is connected with the electric device, and its lower portion is connected with valve flap mounted in the valve body, on the ring recessed groove positioned at side surface of valve flap and mounted in the interior of cross pipe a valve seat is set, said valve seat is formed from inner valve seat and outer valve seat which can be leftward and rightward floated, an elastic sealing body is mounted between inner and outer valve seat, and a spring is mounted beween outer valve seat and bottom wall of ring recessed groove on the valve body. Said plugging valve can quickly implement conversion of opening and closing functions.