Hydrostatic drive system
A hydrostatic drive, hydraulic technology, applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, transmission control, etc., can solve the problem that the power volume flow cannot be unloaded
Inactive Publication Date: 2012-08-15
LINDE HYDRAULICS
View PDF5 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] However, by arranging a throttle device designed as a venturi tube in the branch line downstream of the circulating pressure balance, an overdelivery delivered by the pump can be produced in the reset signal generating position of the circulating pressure balance, which is designed as a through-flow position flow (which exceeds the demand of the controlled consumer) and thus the power volume flow of the pump cannot be unloaded into the container
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] exist figure 1 A circuit diagram of a load-sensing regulated drive 1 according to the invention is shown in .
[0023]The drive system 1 comprises a pump 2 with an adjustable delivery volume, which operates in an open circuit. The pump 2 is connected to a container 4 by means of a line 3 and delivers in a delivery line 5 . In order to control one or more consumers 6 , a control valve 7 is provided in each case, which is designed as a directional control valve that throttles in the middle position. The control valve 7 is connected to the delivery line 5 , a container line 9 and pressure medium lines 8 a , 8 b to consumers 6 . When the control valve 7 is actuated, the control valve 7 controls the connection of the pressure medium lines 8a, 8b to the consumer 6 with the delivery line 5 and the container line 9 and releases the flow from the delivery line 5 according to the control signal. A defined opening cross-section to the pressure medium line 8a or 8b. A pressure ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a hydrostatic drive system. The hydrostatic drive system has a pump, and the supply volume of the pump is adjustable. The pump is used for supplying for at least one compensator. The supply volume adjusting device of the pump loads toward the direction of increasing supply volume by means of a predetermined signal, and loads toward the direction of decreasing supply volume based on the hydraulic reset signal of excessively supplied volume flow for detecting the pump. To generate the reset signal, a circulating pressure balance. The circulating pressure balance is disposed in a flowing path that is used for connecting the supply pipeline of the pump with a container, and enables the hydraulic reset signal to be generated at a reset signal generation position. The purpose of the invention is to provide the hydrostatic drive system which allows the power volume flow of the pump to be unloaded to the container under a condition of low structural consumption. According to the invention, the circulating pressure balance is equipped with a supply flow unloading device that is used for unloading the supply flow of the pump to be unloaded to the container without passing through a throttling device.
Description
technical field [0001] The invention relates to a hydrostatic drive system with a pump with an adjustable delivery volume, which is provided for supplying at least one consumer, wherein the delivery volume adjustment of the pump is performed by means of a predetermined signal Acting in the direction of increasing the delivery volume and acting in the direction of reducing the delivery volume as a function of a hydraulic reset signal which detects the overdelivered volume flow of the pump, wherein a cyclic pressure balance is provided for generating the reset signal, the cyclic A pressure balance is arranged in a flow path connecting the delivery line of the pump to a container and generates the hydraulic reset signal in a reset signal generating location. Background technique [0002] In such a drive system, the delivery volume of the pump is adjusted to the volume flow demand required by the controlled consumer, so that the consumer can move at a movement speed predetermine...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F15B21/08
CPCF04B49/002F04B49/065F04B49/22F16H61/4148F15B2211/20553F15B2211/50536F15B2211/6346F15B2211/6355F15B2211/6652F15B11/0423F15B2211/6336F15B2211/67
Inventor M·德尔格
Owner LINDE HYDRAULICS