-
公开(公告)号：US5066202A
公开(公告)日：1991-11-19
申请号：US533535
申请日：1990-06-05
IPC分类号： F04C29/00
CPC分类号： F04C29/0014 , F04C2220/50
摘要： A method and apparatus for delivering oil into a pump chamber of a high-vacuum stage of a multi-stage pump. The method includes the steps of sensing a first pressure at an intake region of the high-vacuum stage of the pump, and sensing a second pressure at a discharge region of the high-vacuum stage of the pump. Oil is delivered to the high-vacuum stage of the pump in response to a pressure difference between the first and second pressures. Increased quantities of oil are delivered to the high-vacuum stage of the pump when the pressure difference exceeds a predetermined value. A gas ballast may also be delivered to the high-vacuum stage of the pump when the pressure difference exceeds this predetermined value. The apparatus may include a diaphragm valve including a diaphragm mounted between subchambers that are respectively in fluid communication with the intake and discharge regions of the high-vacuum stage of the pump. When the pressure differential between the intake and discharge regions, and thus the subchambers, reaches a predetermined level, the diaphragm is distended to a sufficient degree to unseat a valve element, which allows increased quantities of oil to be delivered to the high-vacuum stage of the pump.
摘要翻译： 一种用于将油输送到多级泵的高真空级的泵室中的方法和装置。 该方法包括以下步骤：感测泵的高真空级的进气区域处的第一压力，并感测泵的高真空级的排出区域的第二压力。 响应于第一和第二压力之间的压力差，将油输送到泵的高真空级。 当压力差超过预定值时，增加的油量被输送到泵的高真空级。 当压力差超过该预定值时，气体镇流器也可以被输送到泵的高真空级。 该装置可以包括隔膜阀，其包括安装在分别与泵的高真空级的进入和排出区域流体连通的子室之间的隔膜。 当进气和排出区域之间的压力差，从而达到预定水平时，隔膜膨胀到足够的程度来使阀元件脱离，这允许更多量的油被输送到高真空级 的泵。
-
公开(公告)号：US20050143603A1
公开(公告)日：2005-06-30
申请号：US10502007
申请日：2003-01-16
申请人： Gunther Bub , Roland Fornika , Berthold Fischer , Dimitrii Guschin , Torsten Meyer , William Sheldrick
发明人： Gunther Bub , Roland Fornika , Berthold Fischer , Dimitrii Guschin , Torsten Meyer , William Sheldrick
IPC分类号： B01J31/22 , C07B61/00 , C07C27/12 , C07C27/16 , C07C45/28 , C07C45/34 , C07C45/35 , C07C49/08 , C07C51/25 , C07C51/275 , C07C51/285 , C07C57/045 , C08F4/26 , C08F120/00 , C08F4/28 , C07C51/16
CPC分类号： C07C45/35 , C07C45/34 , C07C51/252 , C07C47/22 , C07C57/04
摘要： The invention relates to a process for the oxidation of unsaturated hydrocarbons, wherein an unsaturated hydrocarbon, an oxygen-containing oxidizing agent, a palladium complex as the catalyst containing a ligand of the formula (I) wherein R is a saturated, halogenated alkyl radical having from about 1 to about 20 carbon atoms, and optionally auxiliary substances in a liquid phase based on (α1) from about 10 to about 100 wt. % of a protic polar solvent and (α2) from 0 to about 90 wt. % of an aprotic polar solvent, the sum of components (α1) and (α2) being about 100 wt. %, at a temperature in a range from about 30 to about 300° C. under a pressure in a range from about 1 to about 200 bar, such that a liquid phase containing oxygen-containing hydrocarbons is obtained.
摘要翻译： 本发明涉及一种氧化不饱和烃的方法，其中不饱和烃，含氧氧化剂，作为催化剂的钯络合物含有式（I）的配体，其中R是具有饱和卤代烷基的式 约1至约20个碳原子，以及任选的基于（α1）约10至约100重量％的液相中的辅助物质。 ％的质子极性溶剂和（α2）为0至约90wt。 ％的非质子极性溶剂，组分（α1）和（α2）的总和为约100wt。 ％，在约30至约300℃的温度范围内，在约1至约200巴的压力下，使得得到含有含氧烃的液相。
-
公开(公告)号：US4300875A
公开(公告)日：1981-11-17
申请号：US57996
申请日：1979-07-16
CPC分类号： F01C17/06 , F04C18/0215 , F04C29/0057
摘要： In a displacement machine operating according to the spiral principle and having two displacement elements presenting respective axially interengaging sprial-shaped walls, and drive means connected between the elements to produce a relative translatory circular movement therebetween, an elastic suspension is provided to support at least one of the displacement elements for permitting elastic movement between the elements in a plane perpendicular to the axis of translatory circular movement.In such a displacement machine, whether or not the elastic suspension is provided, the walls of the displacement elements are preferably made, at least at the surfaces contacting one another, of respectively different materials presenting a low mutual coefficient of friction.
摘要翻译： 在根据螺旋原理操作并且具有两个位移元件的位移机构中，所述位移元件具有相应的轴向相互接合的弹性壁，以及连接在元件之间以在其间产生相对平移的圆周运动的驱动装置，提供弹性悬架以支撑至少一个 的位移元件，用于允许在垂直于平移圆周运动的轴的平面中的元件之间的弹性运动。 在这种位移机器中，无论弹性悬架是否设置，位移元件的壁最好至少在相互接触的表面上分别形成具有低相互摩擦系数的不同材料。
-
4.发明授权Spiral rotation displacement machine with parallel motion devices ensuring relative torsional rigidity 失效具有平行运动装置的螺旋旋转排量机确保相对扭转刚度
公开(公告)号：US4371323A
公开(公告)日：1983-02-01
申请号：US164106
申请日：1980-06-30
CPC分类号： F01C1/0215 , F01C17/00
摘要： A displacement machine operating according to the spiral principle has at least one parallel motion guide device provided to ensure a torsionally rigid relative movement of two displacement elements.
摘要翻译： 根据螺旋原理操作的排量机具有至少一个平行运动导向装置，以提供两个位移元件的扭转刚性相对运动。
-
-
-
搜索结果
4 条记录 (耗时 0.018 秒)
