| 摘要 |
FIELD: mechanical engineering; pneumatic brake systems of automobiles. SUBSTANCE: load sensing valve of known design has housing, follow-up member made in form of piston and diaphragm with variable response surface whose central portion is secured on piston and peripheral portion, on housing wall. Three spaces minimum are formed in housing two of which are arranged so that pressure on follow-up member creates efforts directed in opposition and are communicated with input and output pressure spaces. It has two-seat valve arranged in follow-up piston and controlled by movable rod sealed in housing mechanically coupled with suspension, and correcting device including spring-loaded piston and valve controlled by piston and bypassing compressed air into third space communicating with blind space in housing and/or body of follow-up member. According to invention, volume of blind space does not exceed 30% of volume of third space. EFFECT: enlarged operating capabilities and enhanced reliability. 2 dwg |
