摘要:
A valve arrangement, especially for controlling flow of hot water through a heating device of a motor vehicle, mainly comprises a closed housing provided with an inlet chamber and an outlet chamber communicating with each other through an opening forming a valve seat, and a valve member movable relative to the valve seat for opening and closing the opening. The arrangement includes further a flexible membrane which is clamped at its outer periphery to the housing and which forms a control chamber at the side of the inlet chamber facing away from the valve seat. The valve member is operated by an electromagnet which acts also on an auxiliary valve member in the control chamber to create during movement of the valve member toward the valve seat a higher pressure in the control chamber than in the outlet chamber and during movement of the valve member away from the valve seat a lower pressure in the control chamber than in the inlet chamber.
摘要:
A completely electronic circuit operating from the respective outputs of a motor speed transducer and a transmission input speed transducer and from other inputs which are usually constant voltages calculates a control signal for moving the control member of an automatic clutch for coupling a vehicle motor to a vehicle transmission during slipping engagement of the clutch until gripping engagement is made in such a way as to minimize the jolt effect without the necessity of hydraulic or mechanical damping devices.
摘要:
In a hydraulic transmission in which couplings and brake bands (servo-elements) control the gear ratio and are themselves engaged and disengaged in accordance with pressure applied thereto, a motor-driven slider is provided to connect a main pressure source directly to servo-elements which will remain engaged in the newly selected gear ratio. Solenoid operated valves are interposed between the main pressure source and a second intake port of the slider. Milled channels in the slider connect this second intake port to the servo-elements to be newly engaged during the gear shift. A known gear control unit operates the valves to control the rate of change of pressure increase at the second intake port to a selected value which will limit the jolt of the vehicle to a predetermined maximum jolt.
摘要:
To prevent scattering of projected light due to fog, the headlight is so constructed that at least that portion of the light projected in the distance (that is, not immediately in front of the vehicle and spread laterally) is polarized; thus, arrangements to prevent limitation of projected light to the region just above the path-way of the vehicle can be avoided.
摘要:
What follows is a description of a fuel metering system for internal combustion engines having a measuring probe. The probe monitors the composition of the exhaust gas and produces an output signal which is used to govern the motions of a magnetic valve which in turn regulates the amount of air mixed in with fuel prior to the admission of this mixture to the veturi in the suction tube of the carburator.
摘要:
The invention relates to a gas-exchanging process for two-stroke internal combustion engines, and a two-stroke internal combustion engine for executing the process, in which two scavenging paths of the gas are provided, namely the known reverse scavenging as the first scavenging path, and a second supply of combustion air effected by precompression serving as the second scavenging path, wherein during the second scavenging an ignitable fuel-air mixture forms in the area of the point of ignition and, by means of the differential pressure established at the intake valve, controls the mixture as well as the quantity itself.
摘要:
Fuel injection device for spark-ignition internal combustion engines having a pump and a distributor with a reversing valve, which distributor is preferably driven at pump speed and has a stationary and a rotating part. The reversing valve is arranged inside the rotating part of the distributor, preferably concentrically, and its inlet opening is connected with the pump work space via a line which likewise extends exclusively inside the rotating part of the distributor.
摘要:
A fuel injection system, for internal combustion engines in which fuel is brought to high injection pressure and distributed via magnet valves to the various fuel injection locations with the aid of a simple, unregulated high-pressure injection pump; high-pressure injection does not take place until a fuel injection quantity control valve, connected to the distribution of the high-pressure side, has closed a relief line. It thus becomes possible to vary the injection time to the maximum possible extent, without entailing major structural expense.
摘要:
A hydraulic engine valve control having a reservoir chamber, which is assigned to a pressure chamber of a valve tappet and has a reservoir piston, which at the same time serves as a valve by which the reservoir chamber can be disconnected from the pressure chamber. The reservoir piston is displaceable out of its position of repose into its reservoir function by a hydraulic control device that cooperates with a magnet valve. In this process, it is also attained that a plurality of valve control units of one internal combustion engine can be controlled via a single magnet valve, if their various control times do not overlap.
摘要:
In a reservoir-type fuel injection system, fuel can be supplied under pressure by a charge pump to two separate pressure reservoirs and the pressure reservoirs communicates via separate valve assemblies with injection nozzles via lines. By means of the separate reservoirs, overlapping of pre-injection and main injection events in different cylinders can be avoided.