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1. 发明申请

WO1992014641A1 HYDRAULIC SYSTEM 审中-公开
标题翻译：液压系统
公开(公告)号：WO1992014641A1
公开(公告)日：1992-09-03
申请号：PCT/EP1992000337
申请日：1992-02-18
申请人： ALFRED TEVES GMBH , KAHRS, Manfred , KUNZ, Gerhard , FLECK, Franz , KRINES, Hans-Gebhard , PETERKNECHT, Walter , HUTHMACHER, Winfried
发明人： ALFRED TEVES GMBH
IPC分类号： B62D05/07
CPC分类号： F01L1/34 , B60K25/00 , B62D5/07 , Y10T74/2102
摘要： A hydraulic system is disclosed with a hydraulic pump directly driven by an internal combustion engine. The object of the invention is to reduce the size, weight, energy consumption and number of components of such known systems. For that purpose, the same pump applies pressure medium to several elements, among which a camshaft adjustment device. Advantageous developments of the invention concern the overriding supply of safety-relevant devices before other devices that are equally linked to the pump. Several measures are disclosed therefor. In addition, the present application describes a series of simplified hydraulic circuits which allow devices having the same order of precedence to be simultaneously driven by one or several pumping circuits. The application also concerns reactionlessly separating individual devices controlled by a pump by distributing them among several separated pumping circuits that may belong to a single pump having one or several pumping stars. Further improvements of the hydraulic system concern an improved energy consumption and noise reduction by certain designs of the pump, wherein the pump is preferably arranged near or within the motor.
摘要翻译：公开了一种由内燃机直接驱动的液压泵的液压系统。本发明的目的是减小这种已知系统的尺寸，重量，能量消耗和部件数量。为此，相同的泵将压力介质施加到多个元件，其中包括凸轮轴调节装置。本发明的有利的发展涉及在与泵同等连接的其它装置之前超出与安全相关的装置的供应。公开了几项措施。此外，本申请描述了一系列简化的液压回路，其允许具有相同优先级的装置由一个或多个泵送回路同时驱动。该应用还涉及通过将由泵控制的各个装置分离在可分属于具有一个或多个泵送恒星的单个泵的几个分离的泵送回路之间来无端地分离。液压系统的进一步改进涉及通过泵的某些设计改进的能量消耗和噪声降低，其中泵优选地布置在马达附近或内部。

2. 发明申请

WO1992008051A1 PISTON PUMP, ESPECIALLY A RADIAL PISTON PUMP 审中-公开
标题翻译：活塞泵，特别是径向活塞泵
公开(公告)号：WO1992008051A1
公开(公告)日：1992-05-14
申请号：PCT/EP1991002085
申请日：1991-11-05
申请人： ALFRED TEVES GMBH , KAHRS, Manfred , KUNZ, Gerhard , FLECK, Franz , SCHÖLLHORN, Hermann , SCHUDT, Gerhard , HUTHMACHER, Winfried
发明人： ALFRED TEVES GMBH
IPC分类号： F04B01/04
CPC分类号： F04B1/1071 , F04B1/0456
摘要： The invention relates to a piston pump with suction regulation, especially for motor vehicles, and preferably with a control stub for internal admission. It is the purpose of the invention to provide such a pump with a constant supply flow rate over a wide revolution speed range and the lowest possible losses and low noise level. To this end the present invention proposes several solutions. In a first, the control slot (13) on the pressure side is divided into several grooves (27, 28), which are at least partly connected to the pressure link (20) via non-return valves (32). In another, the shape of the control slot on the pressure side is adapted to the optimum operating mode by making its inlet end relatively narrow to reduce the noise level (noise reduction at high revolution speeds) and keeping an adequate width at the outlet end for the power required. In a third, the arrangement for the slot (12) on the intake side is similar to that of the second solution and its length also affects the degree of filling of the piston drilling.

3. 发明申请

WO1992001867A1 PRESSURE PULSATION ABSORBER 审中-公开
标题翻译：压力泵吸收器
公开(公告)号：WO1992001867A1
公开(公告)日：1992-02-06
申请号：PCT/EP1991001040
申请日：1991-06-06
申请人： ALFRED TEVES GMBH , FLECK, Franz
发明人： ALFRED TEVES GMBH
IPC分类号： F04B11/00
CPC分类号： B60T8/4068 , F04B11/0091 , F16L55/04
摘要： In systems using a pressure medium, in particular hydraulic systems, system-inherent pressure variations occur in the consumer feed flow, i.e. noise which interferes with the use of the system. To damp out such pulsations or noise, the invention calls for a hollow spherical to egg-shaped cavity with a multi-layer sound-absorbing surround, and with staggered input and outlet bores, as a pulsation-absorption chamber. The pulsation-absorption chamber can be used in any application, can be retrofitted if necessary, and ensures efficient, cost-effective noise and pulsation reduction. Other embodiments of the invention concern particular designs of the pulsation-absorption chamber and its surround.

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