摘要:
The improved sealing grid for a rotary internal combustion engine of the Wankel type comprises a transfer passage means intermittently communicating the space between the inner and outer seals with the working chamber in the exhaust phase, to pass spent combustion gas from the latter to said space and thereby intermittently pressurize the space behind the inner seal and thereby urge the latter into sealing contact with the adjacent wall.
摘要:
A motor vehicle provided with a combustion engine, an alternator, a battery and a heating installation for the passenger cabin has a heating unit which comprises a heating circuit and a heating exchanger fed by the heating liquid for the heating of air. The alternator is liquid cooled and has a rotor and chambers adapted to receive cooling liquid and is switchable into the heating circuit; and the alternator has filed coils adapted to be short circuited. In this fashion the alternator is switchable as an eddy current brake. Furthermore, the alternator may be a liquid cooled alternator asynchronous generator, whereby its chambers which are cooled by the cooling liquid are switched to the heating circuit.
摘要:
A piston of a rotary piston engine of trochoid type including an internal seal with a scraper ring of L-shaped cross section arranged axially movable in a concentric annular groove in one end wall of the piston and pressed with spring action against the adjacent end wall of the housing. The scraper ring is sealed off inside the annular groove by an elastic sealing ring arranged between the axial flange of the scraper ring and at least one wall of the groove. The elastic sealing ring consist of two closed metal rings immediately adjacent to each other and having their outer periphery in sealing and axially displaceable contact with the radial flange of the scraper ring. The rings are inserted with a radial play between their inner periphery and the radial inner wall of the annular groove smaller than the radial play between the axial flange and the radial outer wall of the groove. A spring ring is arranged between the radial flange of the scraper ring and the metal rings, pressing the scraping edge of the scraper ring axially against the end wall of the housing and the metal rings axially against each other and sealingly against the bottom of the annular groove.
摘要:
In a suction pipe installation for multicylinder internal combustion engine with a collector suction pipe, a suction distributor is connected therewith. Adjacently disposed individual suction pipes form a unitary unit with the collector suction pipe. The individual suction pipes extend from the flanges a curve of more than 90.degree. to connecting flanges. The collector suction pipe 1 is mounted in the chamber enclosed by the individual suction pipes, so that it does not require any additional space. A quiet airflow is formed in the straight line segment of the collection suction pipe 1, and in which an air amount meter 18 for a fuel injection installation is installed.
摘要:
An outlet valve for a gas compressor includes a valve seat 1 formed with several rows of apertures 16, a thin flat valve plate 2 having several spaced spring tongues overlapping the apertures, a limit plate 4 overlying the valve plate, and a pressure member 5 above the limit plate. To control and damp the movement and flutter of the valve plate it is frictionally gripped between the limit plate 4 and the valve seat, and springs 15 press the limit plate against the valve plate. Both the valve plate and limit plate can move towards and away from the pressure member 5, this movement being restricted to a fraction of a millimeter by spacer bushes 14 and spacer studs 7. The underside of the limit plate 4 is concavely curved to correspond to the natural bending curvature of the thin valve plate.
摘要:
A device for delivery control is provided in a rotary piston compressor which takes the general form of a housing which is composed of a shell and two parallel side parts and has an outlet duct and at least one lateral inlet duct, and a piston which is mounted on an eccentric of an eccentric shaft, and which in rotation, defines with the inner surface of the shell, working chambers which are variable in volume and which with axial seals located along its circumferential edges, overrides one of the inlet ducts. The improvement of the delivery control device is provided by at least one recess in one side part lying in the direction of rotation of the piston after the inlet duct, a withdrawable plug being disposed within the recess so that it is flush in its closed position with the side wall. When the plug is withdrawn the recess enables one of the working chambers which is in the compression cycle to communicate with the inlet duct through a hollow space provided in the piston during sliding of the axial seals arranged along the circumference of the piston over the recess.
摘要:
A rotary piston four-stroke internal combustion engine of trochoid type includes a housing composed of a shell and two parallel end parts together bounding an inner chamber in which a polygonal position is rotatably mounted. Inlet and outlet passages are provided in the housing for supply of air or fresh gas and for ejection of burned gases, respectively. The inlet passage is connected with an intake duct and the outlet passage with an exhaust gas reactor. A line containing a valve leads from the region of the inner chamber in which compression takes place to the exhaust gas reactor.
摘要:
A double-flow butterfly valve part (1) contains two butterfly valves (4 and 6), which are connected together by means of a coupling element (10). The second butterfly valve (6) is opened only when the first butterfly valve (4) is moved beyond a partially open position into the completely open position. To make it possible to shift the two butterfly valves (4 and 6) back by means of a single restoring spring acting on the first butterfly valve (4), a desmodromic control is provided between the coupling element (10) and the second butterfly valve (6). For this purpose, a lever (9) is disposed on the shaft (7) of the second butterfly valve (6). This lever (9) contains an arched slot (12), which is engaged by a roller (13) mounted in the coupling element (10). The coupling element (10), in turn, is provided with an arched slot (14), which is engaged by a roller (15) mounted in the lever (9).
摘要:
A rotary compressor includes a casing 1 having a curved rotor chamber 2 in which is mounted a rotor 6. The compressor has an outlet valve 10 consisting of two valve units 10a, 10b which are located on inclined support surfaces 12 and outlet passages 11 from the chamber 2 open into the surfaces 12. Each valve unit 10a, 10b consists of a valve seat 15, a valve plate 13 and a limit plate 14, the valve seat 15 having apertures which register with passages 11 and the valve plate 13 having apertures which are staggered from the apertures in the valve seat 15. The support surfaces 12 are positioned close to the chamber 2 so that the length of the passages is small and the "dead volume" between the chamber 2 and the valve plate 13 is reduced.
摘要:
The fluid-cooled rotary piston for a Wankel-type mechanism has a plurality of intersecting flank surfaces to form a multi-sided profile and a hub portion by which it is supported for rotation on a mainshaft. The rotary piston also has a closed-loop passageway for each flank surface extending in close spaced relation to the side faces of the rotor and the intersection of the flank surfaces. An inlet passage is provided for each closed-loop passageway to conduct to the latter, as the rotary piston rotates, pressurized cooling fluid from a source thereof. An outlet passage is provided for each closed-loop passageway to conduct heated cooling fluid from the latter to an area adjacent the hub portion. The outlet passage may be provided with a restricted flow area to insure that the associated closed-loop passageway is maintained full of cooling fluid.