When high pressure fluid from the power steering pump enters a steering rack, it is routed through âspool valvesâ connected to the steering column. When the driver turns the steering wheel, the spool valves open ports that direct pressure to a hydraulic chamber around the rack.
Johnson is a surname of English origin. The name itself is a patronym of the given name John, literally meaning son of John.The name John derives from Latin Johannes, which is derived through Greek á¼°ÏÎ¬Î½Î½Î·Ï IÅannÄs from Hebrew ×××× × Yohanan, meaning Yahweh has favoured.he name itself is a patronym of the given name John, literally meaning son of John. The name John derives from Latin Johannes, which is derived through Greek á¼°ÏÎ¬Î½Î½Î·Ï IÅannÄs from Hebrew ×××× × Yohanan, meaning Yahweh has favoured.
Last name origins & meanings: 1  Jewish, Welsh, Scottish, English, French, Portuguese, German, Czech, Slovak (David) dÃ¡vid And: slovenian from The hebrew personal Name âdavidâ, beloved which has been perennially popular Among, jews in honor of The biblical king of this, name the greatest of the early kings Of.  israel The first French family of the name David recorded in Quebec was in Trois-Rivieres riviÃ¨res around; 1649 their place of origin In france is. 2  Unknown a second, line From, normandy was In Chateau chÃ¢teau richer.  by 1662