公开(公告)号：US4369805A

公开(公告)日：1983-01-25

申请号：US225033

申请日：1981-01-12

Applicant: Chanany Tavor

Inventor： Chanany Tavor

IPC: F16K27/04 ,  G05D11/00

CPC classification number: G05D11/008 ,  F16K27/041 ,  Y10T137/2516 ,  Y10T137/2541

Abstract: A liquid metering injector assembly for injecting metered quantities of a first liquid into respective metered quantities of a second liquid comprising a metering cylinder, metering ports formed at either end of the metering cylinder; a metering piston displaceable in the metering cylinder; a valve unit having a valve inlet for coupling to a pressurized source of the first liquid; means for coupling the valve to a hydraulic pulse source; a valve outlet for coupling to a source of the second liquid; a pair of communication valve ports of said valve unit respectively communicating with the metering ports and selectively communicatable with the valve inlet and outlet and a displaceable spool valve of the valve unit responsive to the hydraulic pulses so as to be displaceable between two positions in which the respective communication of the valve unit communicating ports with the valve unit inlet and outlet are successively reversed.

Abstract translation: 一种液体计量喷射器组件，用于将计量的第一液体注入相应计量的第二液体中，所述第二液体包括计量气瓶，计量孔口形成在计量气缸的任一端; 计量活塞可在计量气缸中移位; 阀单元，其具有用于联接到第一液体的加压源的阀入口; 用于将阀连接到液压脉冲源的装置; 用于联接到第二液体源的阀出口; 所述阀单元的一对连通阀口分别与所述计量端口连通并且可选择性地与所述阀入口和出口通信，并且所述阀单元的可移动滑阀响应于所述液压脉冲，以便在两个位置之间移动， 阀单元连通口与阀单元入口和出口的相应连通顺序颠倒。

公开(公告)号：US4111607A

公开(公告)日：1978-09-05

申请号：US738058

申请日：1976-11-02

Applicant: Chanany Tavor

Inventor： Chanany Tavor

IPC: F01L21/04 ,  F03C1/007 ,  F04B9/105 ,  F04B49/02 ,  F04B49/00 ,  F04B49/08

CPC classification number: F04B49/02 ,  F01L21/04 ,  F03C1/0076 ,  F04B9/1053

Abstract: A hydraulic motor comprising a cylinder, a stepped piston reciprocatable in said cylinder and having relatively proportioned leading and trailing surfaces, the surfaces together with axially directed surfaces defining, with the cylinder walls, first, second and intermediate cylinder zones, which intermediate cylinder zone is sealed with respect the first zone, valve controlled inlet and outlet of said cylinder in communication with said first zone, a water inlet of said cylinder in communication with the intermediate zone, piston wall portions defining a cylindrical recess opening out into the second zone and passages serving to effect communication between the recess and the second and intermediate zones, a tubular spool valve rod, apertured adjacent one end thereof and formed adjacent an opposite end thereof with a pair of axially spaced apart flanges fitting slidingly into the cylindrical recess, the rod having formed thereon an outwardly directed abutment located intermediate the flanges and the one end of the rod, the rod having relatively proportioned leading and trailing surfaces and being reciprocatable with respect to the piston between a first position wherein the second and intermediate zones communicate with each other and wherein there is defined between the opposite end of the rod and a wall of the recess, a region in communication with the interior of the spool valve rod and to which an end surface of said rod is exposed, and a second position wherein the second and intermediate zones are sealed with respect to each other; the rod extending sealingly and slidably through a cylinder wall and being displaceable with respect to the cylinder between a first location wherein the rod apertures communicate with the second zone and a second location wherein the abutment abuts the cylinder wall, the apertures communicating with the outside of the cylinder when the rod is in the second locations and in locations intermediate the first and second locations.