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1. CN1459004 - Arrangement at piston engine and method of controlling the pistons

Office
China
Application Number 01815653.3
Application Date 13.09.2001
Publication Number 1459004
Publication Date 26.11.2003
Grant Number 1273731
Grant Date 06.09.2006
Publication Kind C
IPC
F04B 9/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
9Piston machines or pumps characterised by the driving or driven means to or from their working members
02the means being mechanical
04the means being cams, eccentrics or pin-and-slot mechanisms
F04B 11/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
11Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
CPC
F04B 1/146
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
1Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
12having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
14having stationary cylinders
141Details or component parts
146Swash plates; Actuating elements
F04B 9/042
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
9Piston machines or pumps characterised by the driving or driven means to or from their working members
02the means being mechanical
04the means being cams, eccentrics or pin-and-slot mechanisms
042the means being cams
F04B 11/0066
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
11Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
005using two or more pumping pistons
0058with piston speed control
0066with special shape of the actuating element
Applicants National Oilwell Norway Holdings AS
挪威国立奥伊威尔有限公司
Inventors Magne Moe
马格纳·穆厄
Dae Kyllingstad
奥厄·许林斯塔德
Agents pan peikun lou xianyang
隆天国际知识产权代理有限公司
隆天国际知识产权代理有限公司
Priority Data 20004596 15.09.2000 NO
Title
(EN) Arrangement at piston engine and method of controlling the pistons
(ZH) 活塞式发动机的装置及控制该活塞的方法
Abstract
(EN)
A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders (14b, 14c), preferably positioned with the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylinders etc. with regards to an axis, and each comprising a reciprocating piston with a projecting piston rod (18b, 18c). Via the piston rods (18b, 18c), each piston is given a controlled displacement matched to the controlled, given displacement of another or other pistons. The control means is rotatable and influences the projecting outer end portions of the piston rods or parts fitted to these, for instance rotatable rollers (20b, 20c). By a piston pump of this type, the piston are to contribute to impelling a fluid flow, while a piston engine of this type shall be designed to be driven by a fluid flow. Operating conditions are aimed at which give a more even volume flow, i.e. without any significant fluctuations. For this purpose, said rotatable control means is designed with an encircling cam surface (52) which the piston rod ends abut via the peripheral surface of said rotatable rollers (20b, 20c). According to a feature of a method associated with the application of such a piston engine, each piston may with advantage be driven at a constant speed through part of its power stroke.

(ZH)

一种包括两个或多个活塞缸(14b,14c)的泵型或发动机型的活塞发动机,其最好相对一轴线相同间隔角度为两缸180度或三缸120度等,并且每个活塞缸包括一个带有一伸出的活塞杆(18b,18c)的往复活塞。每个活塞通过该活塞杆(18b,18c)给出一个与另一个或其它活塞的受控移动配合的受控移动。该控制装置是可旋转的并可以控制各活塞杆伸出的外端部或与这些例如可旋转辊轮(20b,20c)配合的部件。如果是活塞泵,则该活塞用来推动一流体,如果是活塞发动机,则它将被一流体驱动。工作目的是为了提供一种更均匀的容积流量,例如没有任何显著的波动。为此,所述可旋转控制装置设置有一个封闭的凸轮表面(52),各活塞杆端通过所述旋转辊轮(20b,20c)的圆周面与该封闭表面接触。根据这种活塞发动机应用的方法特征,较好的是,每个活塞以恒定的速度驱动通过其部分做功冲程。