US 12,258,981 B2
Integrated hydraulic power device and fire truck
Fuxiang Bo, Xuzhou (CN); Bing He, Xuzhou (CN); Shuaitong Wang, Xuzhou (CN); and Liangwei Lu, Xuzhou (CN)
Assigned to JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD., Xuzhou (CN)
Filed by JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD., Xuzhou (CN)
Filed on Apr. 25, 2023, as Appl. No. 18/306,642.
Claims priority of application No. 202310296483.3 (CN), filed on Mar. 23, 2023.
Prior Publication US 2024/0318671 A1, Sep. 26, 2024
Int. Cl. F15B 13/10 (2006.01); F15B 1/26 (2006.01); F15B 13/04 (2006.01)
CPC F15B 13/0401 (2013.01) [F15B 1/26 (2013.01); F15B 13/10 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An integrated hydraulic power device, comprising:
an integrated valve comprising a valve body having an internal flow passage structure, a first mounting end and a second mounting end;
a motor fixedly arranged at the first mounting end;
a hydraulic oil tank fixedly arranged at the second mounting end; and
a hydraulic pump located within the hydraulic oil tank and in drive connection with the motor,
wherein the hydraulic pump has an oil suction port for drawing oil from the hydraulic oil tank, and the internal flow passage structure is communicated with the hydraulic oil tank and the hydraulic pump; an open end of the hydraulic oil tank has an annular flange that protrudes radially outward, and the integrated hydraulic power device further comprises:
a clamping ring sleeved outside the annular flange, the hydraulic oil tank being fixed to the second mounting end by means of bolts and the clamping ring;
a first seal ring located between the second mounting end and an inner cavity surface of the open end; and
a second seal ring located between the second mounting end and the clamping ring.