|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 16|
A vapor recovery pump for a fuel dispensing unit, comprising a housing with two chambers each having a vapor inlet valve and a vapor outlet valve, respectively, the chambers being separated by a movable piston arranged to move a distance between a first and a second end position inside the housing for continuously decreasing and increasing the volume of the chambers. A control element is arranged to selectively vary the location of the first end position.
1. A vapor recovery pump for a fuel dispensing unit, the vapor recovery pump comprising: a housing having a first end wall and a second end wall;a movable piston arranged to move inside the housing alternately towards a selectively variable first end position and a selectively variable second end position, the movable piston and the first end wall defining a first chamber having a first variable volume and the movable piston and the second end wall defining a second chamber having a second variable volume;a first vapor inlet valve and a first vapor outle...