摘要:
In a pump housing (56) of a motor vehicle hydraulic unit which has at least one side surface (18), at least one main cylinder connection opening (44; 46), at least one pump element opening (28, 30) and a connecting line (58; 60) which connects the at least one main cylinder connection opening (44; 46) to the at least one pump element opening (28; 30) and is designed as a blind bore into the pump housing (56), the blind bore of the connecting line (58; 60) extends, according to the invention, from the at least one side surface (18) initially through the at least one pump element opening (28; 30) and subsequently into the at least one main cylinder connection opening (44; 46).
摘要:
The invention relates to a hydraulic assembly of a vehicle brake system with traction control. Hydraulic assemblies comprise a housing block (10), which is to be fitted with hydraulic components, and an electronic control unit for activating said components. It is known for a port (22) for a pressure sensor to be provided on a housing block (10) and for the signal of said pressure sensor (22) to be taken into consideration for brake pressure regulation in the control unit. The invention proposes an advantageous arrangement of at least one second port (24; 26) for a second pressure sensor on the housing block (10) in combination with hydraulic connection of the ports (22, 24, 26) by means of blind bores (50 - 54). The latter can be positioned in a variable fashion and formed with different lengths during the production of the housing block (10). In this way, it is possible for the pressure in different hydraulic partial regions of a vehicle brake system to be sensed in an application-specific manner. The number of such ports (22, 24, 26), which are arranged and connected in such a way, for pressure sensors has no influence on the external dimensions of the housing block (10).
摘要:
The invention relates to a method for prefilling a low-pressure reservoir (14) on a motor vehicle braking system (17), comprising a switching valve (8), a hydraulic pump (9), an outlet valve (13) and the low-pressure reservoir (14), arranged in an inlet line to the hydraulic pump (9). The low-pressure reservoir (14) can be particularly simply and quietly pre-filled when the operation of the foot brake pedal (1) is monitored by sensor and, on operation, the switching valve (8) is closed in order to lock in the brake pressure acting on the wheel brakes (11) and at least one of the outlet valves is opened to release the brake pressure in the low-pressure reservoir (14).
摘要:
The invention relates to a needle bearing (10) that comprises an inner ring (11) configured as an eccentric sleeve, needles (14) and an outer ring (12) having rims (17, 18) which point inwardly on both faces thereof, and of which one is provided for securing the axial position of needles (14) and of the outer ring (12) by engaging with the inner ring (11), due to a rim (18) extending over a face (19) of the inner ring (11). In a pump unit, the needle bearing (10) is arranged, with an axial gap from a roller bearing, on a shaft of a drive motor. The rim (18) of the outer ring (12) engages inside said gap.
摘要:
The object of the invention is to ensure that a solenoid valve opens reliably even when there are great drops in pressure. To this end, the solenoid valve (1) comprises an armature (5) with a plunger (27) accommodated in a longitudinally displaceable manner therein. Acting on a collar (30) of the plunger (27) is a restoring spring (36), which moves the armature (5) with the plunger (27) into a closed position of the solenoid valve, and a pressure spring (34) which acts in the opposite direction to the restoring spring (36) and is supported on the armature (5). The pressure spring (34) is pre-tensioned to a greater degree than the restoring spring (36). Drops in pressure can produce on the plunger (27) a hydraulic closing force in the opposite direction to the magnetic force effect. When the solenoid valve (1) is moved into the open position, the armature (5) therefore performs a partial stroke (h) opposite the effect of the pressure spring (34), before the armature (5), owing to the magnetic force which increases as the armature stroke (H) increases, entrains the plunger (27) by acting on the collar (30). The solenoid valve can be used in an intake line (21) between a main brake cylinder (22) and a self-priming high-pressure pump (23) of a motor vehicle hydraulic braking system.
摘要:
Proposed is a moulded-resin ignition coil with a high-voltage terminal designed to conduct the ignition energy between the ignition coil (7) and the ignition-unit cable (2) with only low losses. This terminal comprises a tight connection plus a holding element, extending out beyond the surface (8) of the resin, to which the end of the cable is fitted. To protect the terminal from moisture and mechanical stresses, the end of the cable (2) is surrounded by at least one sealing element (3) which makes a moisture-proof join with the cable (2) and with the holding element (4).